the density of a metal ingot is to be measured by determining the volume from physical measurements of the dimension of a cylinder and by the mass. assume the diameter can be determined to an uncertainty of 0.05 mm, the length can be determined with an uncertainty of 1 mm, and the mass can be determined with an accuracy of 2 g. if the mass is 5.2 kg, the diameter is 75.2 mm, and the length is 150 mm, what is the uncertainty of the measurement?

Answers

Answer 1

The uncertainty in the measurement of the density of the metal ingot is 75.19 kg/m³.

The uncertainty of the measurement can be found using the formula given below:

δρ/ρ= (δm/m + 2δr/r)

Where:

ρ = Density of the metal ingot

δρ = Uncertainty in the density of the metal ingot

m = Mass of the metalingot

δm = Uncertainty in the mass of the metalingot

r = Radius of the cylinder

δr = Uncertainty in the radius of the cylinder

Here,

m = 5.2 kg, δm = 2

g = 0.002 kg

ρ =?, δρ =?,

r = 75.2 / 2 = 37.6 mm= 0.0376 m

δr = 0.05 / 2 = 0.025 mm= 0.000025 m

The volume of the cylinder can be calculated as follows.

V = πr²l

Where:

l = Length of the cylinder= 150 mm= 0.15 m

Therefore, the volume of the cylinder is,

V = πr²l= 3.1416 x (0.0376 m)² x 0.15 m= 0.0002124 m³

Now, the density of the metal ingot can be calculated using the formula given below:

ρ = m / V= 5.2 kg / 0.0002124 m³= 24505.63 kg/m³

Now, the uncertainty in the density of the metal ingot can be calculated using the formula given below:

δρ/ρ= (δm/m + 2δr/r)δρ/24505.63 = (0.002 / 5.2 + 2 x 0.000025 / 0.0376)δρ = 75.19 kg/m³

Therefore, the uncertainty in the measurement of the density of the metal ingot is 75.19 kg/m³.

To know more about uncertainty in density refer here:

https://brainly.com/question/18403839#

#SPJ11


Related Questions

A block of wood is pushed against a relaxed spring to compress it 0.080 m. The spring constant of the spring is . Calculate the work W done by the block on the sprin

Answers

To calculate the work done by the block on the spring, we can use the formula:

W = (1/2) k x²

where W is the work done, k is the spring constant, and x is the displacement of the spring from its relaxed position.

In this case, we are given that the spring is compressed by 0.080 m,

so x = 0.080 m. We are also given the spring constant,

which we will assume is given in units of N/m.

Let's call the spring constant k.

Plugging in these values into the formula, we get:

W = (1/2) k x²

W = (1/2) (k) (0.080 m)²

W = 0.000256 k J

So the work done by the block on the spring is equal to 0.000256 times the spring constant, in units of joules.

Note that the work done by the block on the spring is equal in magnitude but opposite in sign to the work done by the spring on the block.

This is because the work-energy principle tells us that the net work done on an object is equal to its change in kinetic energy. In this case, the block is initially at rest, so its initial kinetic energy is zero.

Therefore, the work done by the block on the spring is equal in magnitude but opposite in sign to the work done by the spring on the block, which causes the block to gain potential energy in the spring.

To know more about work done , visit :

https://brainly.com/question/13662169

#SPJ1

When a block on a spring is compressed, the work done is calculated using the formula W = (1/2) kx2.

How to calculate the work W done by the block on the spring?

The work done W by the block on the spring can be calculated using the formula:

W = (1/2) kx^2

where k is the spring-constant, where x is the displacement of the spring from its given equilibrium-position.

Given that the spring is compressed 0.080 m and the spring-constant k is,

we can calculate the work done as follows:

W = (1/2) kx^2

W = (1/2)( )(0.080)^2

W = 0.08 J

Therefore, the work done by the block on the spring is 0.08 J.

To learn more about Work done, visit: https://brainly.com/question/25573309

#SPJ1

Hannah heats a beaker of water using a burner, as shown in the diagram.

Which statement best describes the movement of water molecules in Hannah's beaker, represented by the arrows in the diagram?


Water molecules move slower near the bottom of the beaker where they are hotter, but then move faster as they cool and rise due to conduction.

Water molecules move faster near the bottom of the water where they are hotter, but then move slower as they cool and rise due to radiation.

Water molecules move slower near the bottom of the beaker where they are hotter, but then move faster as they cool and rise due to convection.

Water molecules move faster near the bottom of the beaker where they are hotter, but then move slower as they cool and rise due to convection.

Answers

Water molecules travel more quickly when they are hotter, close to the bottom of the beaker, but they slow down as they cool and rise due to convection.

What transpires when water droplets are heated?

The water molecules spread out more and travel more quickly when the water is heated. Due to this, hot water is less dense than water at ambient temperature. Since heated water is less dense than room-temperature water, it floats on it.

How does a hob placed below a container of water heat it up?

Moving downward and towards the heat source is the cold water from the edges. Additionally heated, this water raises, and water from the sides moves downward. This procedure keeps going until the water is heated throughout.

To know more about molecules visit:-

https://brainly.com/question/19922822

#SPJ1

A hot air balloon is hovering at a height of 52 m above the ground a penny is dropped from the balloon assume no air resistance how long does it take the penny to hit the ground?

Answers

Explanation:

We can use the kinematic equation for free-fall motion to find the time it takes for the penny to hit the ground:

h = 1/2 * g * t^2

where h is the height of the hot air balloon (52 m), g is the acceleration due to gravity (9.81 m/s^2), and t is the time it takes for the penny to hit the ground (which we want to find).

Solving for t, we get:

t = sqrt(2h/g)

Substituting the given values, we get:

t = sqrt(2 * 52 m / 9.81 m/s^2)

t = sqrt(10.5871 s^2)

t ≈ 3.26 seconds (rounded to two decimal places)

Therefore, it takes approximately 3.26 seconds for the penny to hit the ground.

what is the gravitational force between the earth and the moon if they are 3.84x100000000m apart? The mass of the earth is 5.98x1000000000000000000000000 and the moons mass is 7.35x10000000000000000000000

Answers

Answer:

1.98 × 10^20 Newtons.

Explanation:

To calculate the gravitational force between the Earth and the Moon, we can use Newton's law of gravitation:

F = G * (m1 * m2) / r^2

where F is the gravitational force, G is the gravitational constant (6.6743 × 10^-11 N m^2/kg^2), m1 and m2 are the masses of the Earth and Moon respectively, and r is the distance between the centers of mass of the Earth and Moon.

Plugging in the given values, we get:

F = (6.6743 × 10^-11 N m^2/kg^2) * ((5.98 × 10^24 kg) * (7.35 × 10^22 kg)) / (3.84 × 10^8 m)^2

Simplifying this expression, we get:

F = 1.98 × 10^20 N

Therefore, the gravitational force between the Earth and the Moon is approximately 1.98 × 10^20 Newtons.

Answer:

We can use the formula for gravitational force:

F = G * (m1 * m2) / d^2

where:

G = gravitational constant = 6.67430 × 10^-11 m^3 kg^-1 s^-2

m1 and m2 are the masses of the two objects in kilograms

d is the distance between their centers in meters

F is the gravitational force in Newtons

Plugging in the values:

F = 6.67430 × 10^-11 * ((5.98x10^24) * (7.35x10^22)) / (3.84x10^8)^2

F = 1.99x10^20 N

Therefore, the gravitational force between the earth and the moon is approximately 1.99x10^20 Newtons.

what physics factor contributes to the accuracy of a fired bullet

Answers

The speed at which the bullet leaves the barrel of the firearm is an important factor in determining accuracy.

What is Velocity?

Velocity is a term used in physics to describe the speed and direction of an object's motion. More specifically, it is the rate at which an object changes its position in a particular direction over time. Velocity is a vector quantity, which means that it has both magnitude (the speed of the object) and direction.

Spin rate: Bullets are designed to spin as they travel through the air, which stabilizes them and reduces the effect of wind and other environmental factors. The rate of spin is influenced by the rifling of the barrel and the bullet's shape and weight.

Bullet weight and shape: The weight and shape of the bullet also affect its trajectory and accuracy. A heavier bullet will generally be more stable in flight and less affected by wind, while a more streamlined shape will reduce air resistance and maintain velocity over longer distances.

Barrel quality and length: The quality of the barrel and its length can also affect accuracy. A high-quality barrel with a smooth bore and consistent rifling will produce more

Learn more about Velocity from the given link

https://brainly.com/question/24445340

#SPJ1

sort the following characteristics based on the type of unconventional hydrocarbon reserve they are associated with.

Answers

The classification is as follows, Tar Sand has following four characteristics:

associated with sandstone

very viscous bitumen

impermeable source

rock open pit mines

Shale Oil has the following two characteristics:

kerogen transformed into oil

extracted by hydrofracturing

Tar Sands and Shale Oil are two types of unconventional hydrocarbon reserves. Tar Sands are composed of sandstone, which contains very viscous bitumen that cannot flow freely due to its high viscosity, making it an impermeable source. This means that the bitumen cannot be extracted through traditional oil drilling methods and must instead be extracted using open-pit mining techniques.

On the other hand, Shale Oil is formed by the transformation of kerogen into oil and can be extracted through a process called hydrofracturing, which involves injecting fluids into the rock to create fractures that allow oil to flow more freely. Both types of unconventional hydrocarbons are significant energy resources, but they have environmental concerns associated with their extraction and use.

To know more about hydrocarbons, here

brainly.com/question/30927346

#SPJ4

--The complete question is, Sort the following characteristics based on the type of unconventional hydrocarbon reserve they are associated with. Items (6 items)

associated with sandstone

very viscous bitumen

impermeable source

rock open pit mines

kerogen transformed into oil

extracted by hydrofracturing--

during which phase of the moon do we see the entire lighted side of the moon? responses new moon new moon waning gibbous waning gibbous full moon full moon first quarter

Answers

The entire lighted side of the moon is visible during the Full Moon phase. The other phases of the moon are the New Moon, the Waning Gibbous, and the First Quarter.

for more questions related to the moon, refer here:

https://brainly.com/question/13538936#

#SPJ11

if the temperature of a gas increases the pressure

Answers

If the temperature of a gas increases, the pressure of the gas will also increase, provided that the volume and the amount of the gas remain constant.

This is known as Gay-Lussac's law or the pressure-temperature law. The law states that the pressure of a fixed amount of gas is directly proportional to its absolute temperature, assuming that the volume is kept constant.

The reason for this behavior is that when the temperature of a gas increases, the average kinetic energy of its molecules also increases, which causes the molecules to move faster and collide with the walls of the container more frequently and with more force.As a result, the pressure exerted by the gas on the walls of the container also increases.

Conversely, if the temperature of the gas decreases, the pressure will also decrease, assuming that the volume and the amount of the gas remain constant.

For more details about temperature click here:

https://brainly.com/question/11464844#

#SPJ11

a generator consists of a rectangular coil 84 cm by 1.5 m , spinning in a 0.14-t magnetic field.if it's to produce a 60- hz alternating emf with peak value 6.3 kv , how many turns must it have?

Answers

The generator needs to have 560 turns in order to produce a 60 Hz alternating EMF with a peak value of 6.3 kV.

EMF stands for electromotive force, and it is the voltage created by a power source such as a battery or generator. Voltage is generated by an EMF, which causes a current to flow in a circuit. When the magnetic flux through a wire loop changes, an EMF is generated in the coil according to Faraday's law. The magnitude of the EMF is proportional to the rate at which the flux changes.The formula for calculating EMF is

EMF = dϕ / dt

where dϕ is the change in magnetic flux and dt is the change in time.

The generator must generate a 60 Hz alternating EMF with a peak value of 6.3 kV using a rectangular coil that is 84 cm by 1.5 m and spins in a 0.14 T magnetic field. according to the question. Let us use the equation to solve for N, the number of turns required:

EMF = NBAf

where N is the number of turns, B is the magnetic field in tesla, A is the area of the coil in m², f is the frequency in Hz

EMF = Peak voltage √2 = 6.3kV√2 = 8915.5 V

Area of the coil, A = l × w = 84 × 1.5 = 126 m²

Frequency, f = 60 Hz

Magnetic field, B = 0.14

TN = EMF / (BAf) = 8915.5 / (0.14 × 126 × 60) ≈ 560 turns

Therefore, In order to produce 60 Hz alternating emf with peak value 6.3 KV, a generator consisting of a rectangular coil 84 cm by 1.5 m, spinning in a 0.14-t magnetic field must have 560 turns

Learn more about magnetic fields, turns, emf at: https://brainly.com/question/15282712

#SPJ11

A charged particle moves in some area and does not experience any magnetic force. We can conclude that:a. There is no magnetic field in this areab. There is no magnetic field in the area or there is magnetic field whose lines are parallel to particle's velocity.c. There is no magnetic field, or magnetic field is perpendiculer to particle's velocity.d. There is magnetic field parallel to particle's velocitye. There is magnetic field perpendicular to particle's velocity

Answers

No magnetic field, a magnetic field perpendicular to the particle's motion, a magnetic field parallel to the particle's velocity, or none at all.

When there is no magnetic force experienced by a charged particle travelling in a magnetic field?

So, if a charged particle in a magnetic field experiences no force, it is either at rest or travelling parallel to the magnetic field.

What circumstances must exist for a particle to feel force in a magnetic field?

A charged particle will always experience a force from the electric field of magnitude F equals q, E, F=qE. Only if a charged particle is travelling in tandem with the magnetic force will it experience its force.

To know more about magnetic force visit:-

https://brainly.com/question/3160109

#SPJ1

an rl circuit is connected to a voltage source. if we connected a capacitor in parallel with the rl circuit, and increase the capacitor size from 0 to infinity. what will happens to power factor?

Answers

An RL circuit is connected to a voltage source. If we connect a capacitor in parallel with the RL circuit, and increase the capacitor size from 0 to infinity, the power factor will increase.

What is power factor?

The power factor is the cosine of the phase angle between the current and voltage in the AC circuit. It refers to the ratio of active power to apparent power, and it is expressed as a decimal or a percentage. A high power factor implies that the circuit has an efficient use of power, whereas a low power factor implies that the circuit has a wasteful use of power.

What is RL circuit?

In an RL circuit, the voltage source is connected in series with a resistor and an inductor. This circuit provides a low-pass filter, which is utilized in many applications such as power supplies, voltage regulators, and audio amplifiers.

What happens when a capacitor is connected in parallel with an RL circuit?

When a capacitor is connected in parallel with an RL circuit, the circuit is referred to as an RLC circuit. The addition of the capacitor creates a second reactive element, which changes the overall impedance of the circuit. The impedance of the capacitor is negative, whereas that of the inductor is positive. Therefore, the total impedance of the circuit can be zero, positive, or negative, depending on the values of the components and the frequency of the signal.

What happens to power factor when we increase the capacitor size from 0 to infinity?

When we increase the capacitor size from 0 to infinity, the impedance of the capacitor approaches zero, whereas that of the inductor approaches infinity. Hence, the total impedance of the circuit approaches infinity. At this point, the circuit is purely resistive, and the power factor is unity (1).

Therefore, the power factor increases as the capacitor size increases from 0 to infinity.

Here you can learn more about RL circuit

https://brainly.com/question/29554839#

#SPJ11  

One of the characteristics of ocean water that causes ocean currents is salinity. Differences in salinity can generate movement in the ocean because the amount of dissolved salt in ocean water correlates to–how quickly it evaporates.its ability to conduct electricity.the latitude where it is found.the density of the water.

Answers

"One of the characteristics of ocean water that causes ocean currents is salinity. Differences in salinity can generate movement in the ocean because the amount of dissolved salt in ocean water correlates to the density of the water."

The water molecules in the ocean increase as they warm up. This growth provides more space for storage, which salt and other materials like calcium can fit into. So, as warmer water contains more salt and other particles than cold water, it may have a higher salinity. In order to connect salt water concentration to ocean currents, salt water is more concentrated at higher salinities.

When the salinity is high enough, the water will settle, resulting in a convection circulation. This indicates that the density, salinity, and temperature of the ocean water can actually cause a current's normal flow to reverse, allowing cold water to layer on top of warm water if the latter has enough salt content.

To know more about salinity:

https://brainly.com/question/2752734

#SPJ4

One end of a metal rod is placed over a flame during an investigation. A thermometer is touching the opposite end of the metal rod. Which BEST describes what is happening during this investigation?
A. Convection carries heat to the thermometer.
B. Radiant energy warms the thermometer.
C. Mechanical energy from the flame carries heat to the thermometer.
D. Heat from the flame is conducted through the metal rod to the thermometer.

Answers

The correct answer is (a), as the thermometer receives heat from tradition. Conventional heat transfer involves the movement of large numbers of molecules, therefore heat will pass from the heating potential portion to the opposing portion of the thermometer.

The heated end of such an iron rod causes its atoms to vibrate more quickly when it is placed in a flame. With their nearby atoms, these atoms vibrate.

Free electrons that are able to float through the metal jiggle and exchange energy by slamming against atoms and other electrons.

The metal of the rod directly above it receives the electron transport. This portion of the rod has a higher thermal energy content, making it hotter. Dispersion, conduction, nonlinear thermal, and evaporative cooling are a few of the several types of heat transmission methods.

To know more about potential click here

brainly.com/question/9605409

#SPJ4

you have designed and constructed a solenoid to produce a magnetic field equal in magnitude to that of the earth (5.0 10-5 t). if your solenoid has 550 turns and is 30 cm long, determine the current you must use in order to obtain a magnetic field of the desired magnitude.

Answers

The current that must be used in order to obtain a magnetic field of the desired magnitude is 40.9 µA.

When designing and constructing a solenoid to produce a magnetic field that is equal in magnitude to that of the earth (5.0 x 10^-5 T), the current required to obtain the desired magnitude of the magnetic field must be determined. The solenoid has 550 turns and is 30 cm long. To determine the current required, the equation for the magnetic field produced by a solenoid is used.

The equation for the magnetic field produced by a solenoid is as follows: B = (μ₀ * n * I) / L

where B is the magnetic field, μ₀ is the permeability of free space, n is the number of turns per unit length (in this case, per meter), I is the current, and L is the length of the solenoid.

In this problem, the values of B, n, and L are known. B = 5.0 x 10^-5

Tn = 550 turns / 0.30 m = 1833.33 turns/mL = 0.30 m

Substituting the known values into the equation and solving for I gives:

I = (B * L) / (μ₀ * n) = (5.0 x 10^-5 T * 0.30 m) / (4π x 10^-7 Tm/A * 1833.33 turns/m)

I = 0.0000409 A = 40.9 µA

Therefore, the current required to obtain a magnetic field of the desired magnitude is 40.9 µA.

For more such questions on Magnetic field.

https://brainly.com/question/23096032#

#SPJ11

1. Describe the work done as positive, negative or no work

cable is attached to a bucket and the force of tension is used to pull the bucket out of a well.


2. Describe the work done as positive, negative or no work

A busy spider hangs motionless from a silk thread, supported by the tension in the thread.


3. Describe the work done as positive, negative or no work

Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall

Answers

Positive work is done when an object is moved in a positive direction. When an object is moving in the same direction as the force being applied, this is considered positive work. As an illustration, an object falling to the ground does so in the direction of gravity.

The work is referred to be positive work done since gravity is pushing downward in the direction of the falling object. Every force used to move an object in a particular direction constitutes work. We distinguish between positive and negative work done based on whether an object moves in the direction of the force or away from it. Work performed is considered to be 0 if there is absolutely no displacement. It is crucial to keep in mind that whereas force and displacement are both vector concepts, work is a scalar quantity.

Learn more about positive work here:

https://brainly.com/question/10063455

#SPJ4

What are contaminants

Answers

Contaminants are substances or agents that are present in a material or environment, frequently in unwanted or hazardous proportions, and which may harm the environment, and human health.

What is Chemical contaminants?

They include pollutants that are released from industrial operations, agricultural practices, or human activities, such as pesticides, heavy metals, volatile organic compounds (VOCs), and polychlorinated biphenyls (PCBs).

Explain Radiological contaminants.

They include pollutants that are released from industrial operations, agricultural practices, or human activities, such as pesticides, heavy metals, volatile organic compounds (VOCs), and polychlorinated biphenyls (PCBs).

to know more about contaminants here:

brainly.com/question/24324754

#SPJ9

1. when a neutral metal sphere is charged by contact with a positively charged glass rod, the sphere a) gaining electrons b) gaining protons c) losing electrons d) losing protons 2. a glass rod is given a positive charge by rubbing

Answers

1. When a neutral metal sphere is charged by contact with a positively charged glass rod, the sphere loses electrons.

2. A glass rod is given a positive charge by rubbing it with a silk cloth.

The process of charging by contact occurs when a charged object is placed in contact with a neutral object, causing the neutral object to become charged. In this case, a positively charged glass rod is brought into contact with a neutral metal sphere, causing electrons to move from the sphere to the rod. As a result, the metal sphere loses electrons and becomes positively charged. On the other hand, a glass rod is given a positive charge by rubbing it with a silk cloth. This is known as charging by friction, and it occurs when electrons are transferred from one object to another as a result of friction between the two objects. In this case, electrons are transferred from the silk cloth to the glass rod, causing the rod to become positively charged.

Know more about electrons

https://brainly.com/question/860094

#SPJ11

what is the mass of the page, if 500pages of the book is 2.5kg in total mass?
Kg:



mg:​

Answers

The mass of a single page of the book in kilogram and gram are is 0.005 kg and  5 grams respectively.

What is the mass of the page?

Mass is a dimensionless quantity representing the amount of matter in a particle or object.

Given that, 500 pages of the book is 2.5kg in total mass.

To find the mass of a single page, we need to divide the total mass of the book by the number of pages.

In this case, we have:

mass of 500 pages = 2.5 kg

Dividing both sides by 500, we get:

mass of 1 page = (2.5 kg) / 500

mass of 1 page = (2.5 kg) / 500

mass of 1 page = 0.005 kg

Converting kilogram to gram, multiply the mass by 1000.

mass of 1 page = 0.005 × 1000g

mass of 1 page = 5 gram

Therefore, the mass of a single page is 0.005 kg or 5 grams.

Learn more about mass here: https://brainly.com/question/19694949

#SPJ1

Kim and Julio go to a raceway to watch Julio's older brother, Raul, compete. Raul's car
covers the 2.5 km in 12 seconds, reaching a speed of 180 km/h. Use the equation below
to determine the rate of acceleration of Raul's car.
In this equation, a is acceleration, v is the final velocity, v; is the initial velocity, and
t is time. (Hint: The initial velocity is 0 km/h.)
What is the acceleration of Raul's car?
a =
(Vy-vi)
t

Answers

Explanation:

U=0

V=180 km/h

T=12 sec

A=(v-u)÷t

=(180-0)÷12

=180÷12

=15km/h

Hence, the acceleration of the car is 15km/h

describe the characteristics of the various kinds of interstellar gas (hii regions, neutral hydrogen clouds, ultra-hot gas clouds, and molecular clouds)

Answers

Interstellar gas is the gas that fills the areas between stars in a galaxy. There are different kinds of interstellar gases. The characteristics of the different kinds of interstellar gas are given below:

HII Regions: An HII region is a region of hydrogen gas that has been ionized. This ionization is usually caused by high-energy ultraviolet light from hot stars. HII regions typically contain about 90% hydrogen and 10% helium, with trace amounts of other elements. Neutral hydrogen clouds: Neutral hydrogen clouds are regions of space that contain mostly molecular hydrogen. These clouds are very cold, typically around -260°C, and have very low densities. Neutral hydrogen clouds are often found in the outer regions of galaxies. Ultra-hot gas clouds: Ultra-hot gas clouds are regions of space that are extremely hot and have very high densities. These clouds are often found around black holes or other highly energetic objects. Ultra-hot gas clouds are typically composed of ionized hydrogen and helium, along with trace amounts of other elements.

Molecular clouds: Molecular clouds are regions of space that contain large amounts of molecular hydrogen. These clouds are typically very cold, with temperatures around -250°C. They are also very dense, with densities that can be thousands of times greater than the density of the interstellar medium. Molecular clouds are important because they are the birthplaces of stars. When a molecular cloud collapses, it can form a protostar, which will eventually become a main-sequence star.

Learn more about Interstellar gas at: brainly.com/question/13034266

#SPJ11

3. the density of a block of wood is 0.73 g/cm3. its mass is 653 g. we tie the block to the bottom of a swimming pool using a single strand of string so that the block is entirely submerged. the block is trying to float to the surface, but the string holds it underwater. find the tension in the string.

Answers

Calculate the buoyant force acting on the block, which is equal to the weight of water displaced, using Archimedes' principle. The block's weight less the buoyant force equals the tension in the string.

To calculate the buoyant force, we need to determine the volume of water displaced by the block. The volume of the block is equal to its mass divided by its density, so we have: Volume of block = mass / density = 653 g / 0.73 g/cm3 = 894.5 cm3 Since the block is completely submerged, the volume of water displaced is also 894.5 cm3. The weight of this volume of water is: Weight of water = density of water x volume of water x acceleration due to gravity

= 1 g/cm3 x 894.5 cm3 x 9.81 m/s2

= 8,756.75 g ,Thus, the buoyant force acting on the block is 8,756.75 g or 8.75675 N. Since the block is trying to float to the surface, the buoyant force acts upwards and the tension in the string acts downwards. Therefore, the tension in the string is: Tension in string = weight of block - buoyant force

= 653 g x 9.81 m/s2 - 8.75675 N

= 6,263.63 N - 8.75675 N

= 6,254.87 N , Therefore, the tension in the string is approximately.

learn more about density here:

https://brainly.com/question/15164682

#SPJ4

The phenomenon of pressure waves emanating from the bullet, causing damage remote from its path, is known as: A. capitation. B. cavitation. C. congruent.

Answers

The phenomenon of pressure waves emanating from the bullet, causing damage remote from its path, is known as B. cavitation.

Cavitation occurs when a bullet passes through a medium, like air or water, at high velocity, causing the medium to compress and expand rapidly. The rapid compression and expansion create a series of shock waves that can cause damage beyond the path of the bullet itself. Cavitation can cause damage to objects as well as tissue and organs, as the shock waves cause significant disruption. The effects of cavitation can be seen in other forms of high-velocity projectiles, such as missiles. Cavitation can also be used in underwater applications to create shock waves that can be used to clear debris or even kill marine life.



In summary, cavitation is the phenomenon of pressure waves emanating from a bullet, causing damage remote from its path. This phenomenon can cause considerable damage beyond the path of the bullet, as well as having practical applications in underwater engineering. Therefore the correct option is B

Know more about cavitation here:

https://brainly.com/question/20713735

#SPJ11  

Which component of the ECG cycle shows ventricular depolarization?
answer choices
V
T
QRS
P

Answers

The QRS component of the ECG cycle shows ventricular depolarization. The QRS complex is the part of the electrocardiogram (ECG) that reflects the electrical depolarization of the ventricles.

QRS complex: The QRS complex is the peak waveform in the ECG cycle that represents the time required for depolarization of the ventricles. The QRS complex can be used to assess the patient's heart rate, rhythm, and ventricular conduction times in addition to ventricular depolarization.

QRST complex: The QRST complex represents the electrical activity that takes place in the ventricles. The time between the beginning of the QRS complex and the end of the T wave is called the QT interval, which is a measure of the duration of ventricular depolarization and repolarization.

The QRS complex typically takes 0.06 to 0.10 seconds to complete, depending on the patient's age, sex, and physiological conditions.

For more question on depolarization click on

https://brainly.com/question/30039342

#SPJ11

a car accelerates uniformly from rest and reaches a speed of 22.5 m/s in 8.95 s. (a) if the diameter of a tire is 58.6 cm, find the number of revolutions the tire makes during this motion, assuming that no slipping occurs. (b) what is the final angular speed of a tire in revolutions per second?

Answers

The number of revolutions the tire makes during this motion, assuming that no slipping occurs is 54 and the final angular speed of a tire in revolutions per second is 12.2 revolutions per second.

Given Data

Initial speed (u) = 0, Final speed (v) = 22.5 m/s, Time (t) = 8.95 s, Diameter of tire (d) = 58.6 cm = 0.586 m, Radius of tire (r) = d/2 = 0.293 m(a)

Number of revolutions the tire makes during this motion: The circumference of the tire is given as:

Circumference = πd = 3.14 x 0.586 = 1.84 m

Since there is no slipping, the distance covered by the car in 8.95 s is given by: d = ut + 1/2 at²,

Where acceleration (a) = (v - u)/t = 22.5/8.95 = 2.51 m/s²

Therefore, d = 0 x 8.95 + 1/2 x 2.51 x (8.95)² = 100 m

The number of revolutions of the tire during the motion can be given by the ratio of the distance covered by the circumference of the tire.

Revolutions = Distance covered/Circumference = 100/1.84 = 54.35 or 54 revolutions (approx.)

(b) The final angular speed of a tire in revolutions per second:

We can use the following formula to find the angular speed of the tire:

v = ωr

Where, v = final velocity, ω = angular velocity, and r = radius of the tire

So, ω = v/r = 22.5/0.293 = 76.8 rad/s

Number of revolutions per second = 76.8/2π = 12.23 or 12.2 revolutions per second (approx.)

Thus, the number of revolutions the tire makes during this motion, assuming that no slipping occurs is 54 and the final angular speed of a tire in revolutions per second is 12.2 revolutions per second.

To know more about angular speed, refer here:

https://brainly.com/question/29058152#

#SPJ11

iron-60 is formed during supernovae (exploding stars). it decays into cobalt-60 with a half-life of 2.6 million years. suppose astronomers look at a supernova remnant and find that 71% of the iron-60 has decayed. how many years ago did the star explode?

Answers

The star exploded approximately: 3.3 million years ago.

We can use the radioactive decay equation to solve this problem, which is:
N = N₀ (1/2)^(t/t₁/₂)
where N is the current amount of the radioactive substance, N₀ is the initial amount, t is the time elapsed since the decay started, and t₁/₂ is the half-life of the substance.

Let's assume that the initial amount of iron-60 was 100 units, and that 71% of it has decayed. Then the current amount of iron-60 is:
N = 100 - 0.71(100) = 29
Substituting these values into the decay equation, we get:
29 = 100 (1/2)^(t/2.6×10^6)

Dividing both sides by 100 and taking the logarithm of both sides, we get:
log(0.29) = (t/2.6×10^6) log(1/2)

Solving for t, we get:
t = -2.6×10^6 × (log(0.29) / log(1/2)) ≈ 3.3 million years

To know more about "Radioactive decay" refer here:

https://brainly.com/question/1770619#

#SPJ11

the force exerted by the leading edge of a subducting plate is called

Answers

The force exerted by the leading edge of a subducting plate is called slab pull.

Force is a physical concept that describes the influence that one object has on another object, which can cause a change in motion or deformation. It is typically measured in units of Newtons (N) and can be classified as a push or a pull. According to Newton's Laws of Motion, force is equal to the product of mass and acceleration (F=ma), meaning that the greater the mass or acceleration of an object, the greater the force required to move it.

Force can be found in many aspects of our daily lives, from the way we walk, to the way we lift objects, to the way that gravity pulls us towards the earth. It is a fundamental concept in physics, and it is essential for understanding the behavior of objects in motion and the interactions between them.

To learn more about Force visit here:

brainly.com/question/13191643

#SPJ4

A star of spectral type O lives approximately how long on the main sequence? A) 1,000 years. B) 10,000 years. C) 10 million years. D) 100 million years

Answers

1,000,000 years from now, (a) is the right response. Let's say you spot two stars belonging to the identical spectral class that are main-sequence stars. By something like a factor of 100, Star 1 seems to be brighter than Star 2 in terms of visual brightness.

Which O-type star is the closest?

Only an estimation of these stars' distances may be made by astronomers: Zeta () Ophiuchi, the nearest O-type star, is located around 370 light-years distant, whereas Gamma2 (2) Velorum, the nearest Wolf-Rayet star, is located upwards of 1,000 light-years away.

How quickly a star burns through its nuclear fuel determines how long it will last. With enough fuel to last for approximately five billion years, our sun, that is in numerous respects an ordinary type of star, has indeed been existing for about five billion years.

To know more about nuclear click here

brainly.com/question/18187269

#SPJ4

An object with mass m is attached to the end of a spring with spring constant k, the object is displaced a distance d from equilibrium and released.
What is the speed v of the mass when it returns to the equilibrium position?

Answers

As the mass moves back towards its equilibrium point, its speed is zero.

The motion of the mass attached to the spring can be described using the equation of motion:

[tex]m(d^2x/dt^2) = -kx[/tex]

where x is the displacement of the mass from its equilibrium position, t is time, m is the mass of the object, and k is the spring constant.

We can solve this differential equation to obtain the displacement x as a function of time:

x(t) = A cos(wt) + B sin(wt)

where A and B are constants that depend on the initial conditions of the system, and w is the angular frequency of the oscillation:

w = sqrt(k/m)

To find the speed of the mass when it returns to the equilibrium position, we need to find the velocity v at that point. The velocity is the derivative of the displacement with respect to time:

v(t) = -Aw sin(wt) + Bw cos(wt)

At the equilibrium position, the displacement x is zero, so we have:

x(0) = A = d

v(0) = Bw = 0

Therefore, the displacement of the mass from its equilibrium position is:

x(t) = d cos(wt)

And the velocity of the mass at the equilibrium position is:

v(0) = -dw sin(0) + 0 = 0

v = 0.

Learn more about equilibrium here:

https://brainly.com/question/30807709

#SPJ1

a camcorder can run off of a charged battery pack for 2 hours. if the pack supplies 180 c of charge to the camcorder, how much current does it draw from the battery physics

Answers

The camcorder draws 0.025 Amperes of current from the battery.

In this case, the student is asking how much current a camcorder draws from a battery pack that can run for 2 hours and supplies 180 C of charge.

To calculate the current drawn by the camcorder, we can use the formula:

I = Q/t

where I is the current, Q is the charge, and t is the time. We are given that the camcorder runs off a charged battery pack for 2 hours and the pack supplies 180 C of charge to the camcorder.

Therefore, we can plug these values into the formula to calculate the current drawn by the camcorder:

I = 180 C / 2 hours

I = 90 C/hour

Since the unit of current is amperes, we need to convert 90 C/hour to amperes. We can do this by using the formula:

I = Q/t = (90 C/hour) / (3600 seconds/hour)

I = 0.025 A of current is drawn by the camcorder from the battery pack.

For more such questions on Current.

https://brainly.com/question/11847735#

#SPJ11

upiter is about five times as far from the sun as earth. therefore, the strength of sunlight at jupiter is about as strong as it is at earth. a. one-twenty-fifth b. one-fifth c. five times d. twenty-five times

Answers

Jupiter is about five times as far from the sun as earth. Therefore, the strength of sunlight at Jupiter is: about one-twenty-fifth as strong as it is at earth. Option (a) is the correct answer.

How is the strength of sunlight at Jupiter compared to that at Earth?

Jupiter is located at a distance of about 5.2 astronomical units from the sun. An astronomical unit (AU) is a unit of measurement that is used to calculate distances in space. It is the mean distance between the Earth and the Sun (149.6 million kilometers or 93 million miles).

So, Jupiter is approximately five times further from the Sun than the Earth. Due to this, the sunlight at Jupiter is much weaker than the sunlight at Earth. The strength of sunlight at Jupiter is about one-twenty-fifth as strong as it is at Earth.

To know more about "Astronomical unit" refer here:

https://brainly.com/question/30393278#

#SPJ11

Other Questions
Find n. Then find the area. Perimeter =60 2/4 in in the situation of a firm releasing pollutants during the production process, which negatively impacts the surrounding community, the firm is considered to be contributing to market failure. why? 5 levels of Maslows hierarchy starting with the bottom of the pyramid Carlos has scored 24, 19, 20, and 28 points in his four basketball games so far. How many points does he need to score in the next game so that his average (mean) is 24 points per game? (Adding Integers MC) What is the value of 209 + 142 + 52? 15 15 67 194 which of the following sentences demonstrates parallel structure? question 30 options: marian will interview all candidates, dale will train new employees, and annual reviews will be conducted by paul. A recipe says that 6 spring rolls will serve 3 people. How many people will 1 spring roll serve gwhat is the risk-appetite? you can give a scenario that how much risk would you accept, and how would you handle the trade-offs between security and accessibility. 4.1 Exponential Functions189Work these problems. (See Example 5.)37. Finance If money loses value, then as time passes, it takesmore dollars to buy the same item. Use the results of Exercise36(a) to answer the following questions.(a) Suppose a house costs $105,000 today. Estimate the cost ofthe same house in 10 years. (Hint: Solve the equation.74t =$105,000.)(b) Estimate the cost of a $50 textbook in 8 years. which type of speaking method is used when a speaker delivers a speech without any prior preparation? 4x While the development of railroads greatly contributed to the growth of the American economy, they also had a major impact of the environment of the nation. Whichanswer choice was NOT a way that the railroads negatively impacted the environment?ANatural animal habitats were destroyed, and migratory patterns were disrupted.B The burning of coal in the engines and the steel-making process caused air pollution.C The railroads produced radioactive wastes that leaked into the soil and water.D Thousands of acres were cleared to provide a path and to build the railroad fies. Of the following , which measurement is in the base units 5mg, 10kL, 2.5g, 100mm What is the purpose of doing a multiple comparison? Choose the correct answer below. O A. O B. O C. D. A multiple comparison is used to compare the results of a one-way ANOVA to the results of a two-way ANOVA. A multiple comparison is equivalent to a one-way ANOVA, except for more than two populations. When at least one of the variances is different, a multiple comparison shows the relationship between the variances. When the null hypothesis of an ANOVA test is rejected, a multiple comparison shows the relationship between the population means. Click to select vour answer What were the social classes in Spanish colonies?Spanish exploration and colonization:Due to excessive Muslim fees and robbers on the overland routes, the Spanish were forced to attempt to find another route to India and East Asia. As a result, the Crown commissioned Italian sailor Christopher Columbus to find such route by sailing West; however, Columbus discovered the islands of the Caribbean, and through exploration, gold was found in this new area. As a result, the Spanish established colonies in the new lands, and they implemented their control over the area. darwin observed that tortoises of the nearby islands, although slightly different, belonged to the same species. how might he have known they were the same species? anya configures biometric security for a military installation to admit/deny entry using facial recognition. in this case, which error rate is likely to allow to be relatively high Which equation correctly represents a change in population density?A. Change in Population Density = (Births + Immigration) - (Deaths + Emigration)B. Change in Population Density = (Births + Emigration) - (Deaths + Immigration). Change in Population Density = (Births - Immigration) + (Deaths + Emigration)D. Change in Population Density = (Births + Immigration) + (Deaths - Emigration) Algebraic expressions for geometry( just beginning geometry) please help this is 2 months late resource management for most service-providing organizations generally requires as many intermediate levels of planning as it does for manufacturing. question 55 options: true false Discuss any six democratic principles in South Africa