1. Describe how the word ‘scientist’ came to be.
2. Who were the four men that met at Cambridge in 1812 and what were some of their accomplishments? What did they do and discuss at their meetings? Explain and describe.
3. What was the inductive scientific method? Explain. What was the debate surrounding this scientific method? Describe.
4. How did women first get a foot in the door of science? By whom? Explain.
5. What is the heroic part of the Philosophical Breakfast Clubs story? What is the flip side of this story? Explain the details of the ‘flip side.’
6. Snyder ends her talk by saying, “Darwin knew what we seem to have forgotten, that science is not only for scientists.” What do you think that is meant by this? Do you consider yourself to have a basic scientific literacy? Explain and discuss your thoughts.
7. Do you think it’s important that forensics is categorized as a science? Why or why not?

Answers

Answer 1

The word 'scientist' was first coined by William Whewell in the early 19th century. He proposed the term as a replacement for the previous term 'natural philosopher.

What is the word scientist about?

The four men who met at Cambridge in 1812 were Charles Babbage, John Herschel, George Peacock, and Richard Jones. They were all highly accomplished scientists and mathematicians, and they formed a close friendship and intellectual partnership. They discussed a wide range of scientific and philosophical topics, including the nature of knowledge, the role of mathematics in science, and the principles of inductive reasoning. Their meetings laid the foundation for the development of the modern scientific method and helped to establish the field of mathematics as a central component of scientific inquiry.

The inductive scientific method involves making observations and collecting data in order to draw general conclusions or make predictions about a particular phenomenon. It is based on the idea that knowledge can be built up gradually through the accumulation of empirical evidence. The debate surrounding this scientific method focused on the question of whether it was truly objective and reliable, or whether it was inherently biased by the particular observations and assumptions of the scientist conducting the research.

Women first began to make significant contributions to science in the 19th century, largely through the efforts of pioneers such as Mary Somerville and Caroline Herschel. These women often had to overcome significant social and institutional barriers in order to pursue scientific research, but their accomplishments helped to pave the way for future generations of female scientists.

The heroic part of the Philosophical Breakfast Clubs story is the way in which these four men collaborated and supported each other in pursuit of scientific knowledge. They were willing to challenge established ideas and take risks in order to advance their field. However, the flip side of this story is that their exclusive, male-dominated intellectual circle reinforced existing power structures and excluded women and other marginalized groups from participating in the scientific enterprise.

Darwin's statement that "science is not only for scientists" emphasizes the idea that scientific knowledge should be accessible and understandable to everyone, not just those who have specialized training or expertise. In order to fully participate in a democratic society, it is important for individuals to have at least a basic understanding of scientific concepts and methods. Whether or not one considers oneself to have a basic scientific literacy depends on individual experiences and education.

Therefore, It is important that forensics is categorized as a science because it involves the application of scientific principles and methods to the investigation of crimes and other legal matters. By using evidence-based techniques, forensic scientists can provide accurate and reliable information that can be used to make informed decisions in legal proceedings.

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Related Questions

find distance of this v-t graph

Answers

1500 m

Distance = Speed x Time

The distance  of the v-t graph as shown in the diagram is 1000 m.

How to find the distance in a v-t graph?

To calculate the distance in a velocity-time graph, we find the total area under the graph

From the graph in the question above,

Distance in the v-t graph = Area of a tripezium = h(a+b)/2A =  h(a+b)/2........................ Equation 1

Where:

A = Total distance of the v-t graphh = Height of the tripeziuma and b = Both parallel side of the tripezium

From the diagram,

h = 50 secondsa = 10 m/sb = 30 m/s

Substitute these values into equation 1

A = 50(10+30)/2A = 50×20A = 1000 m

Hence, the distance is 1000 m.

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URGENT PLEASE HELP 100 POINTS AND BRAINLIEST!
Physics Essay
 Pick one of the sources of energy and write an essay on why you think that source of
energy is better than the rest.
 Discuss why the other sources of energy are not as beneficial as the one you chose. (This
step will be important for the debate).
 You can write the essay by hand or type it. If you choose to type the essay it should be 12
pt font and double spaced.
 There is no page limit, however you should have at least 3 paragraphs and you should
provide enough details that I can recognize why you chose that source of energy and
what the benefits of using that source of energy are. Also remember you need to have
some sort of counter argument on why other types of energy are not as beneficial as the
one that you chose.
 Do not plagiarize your essay. If you plagiarize you WILL get a 0.
 Make sure to cite any sources that you use to write this paper.

Answers

Solar energy is an increasingly popular form of energy that is quickly becoming more efficient and cost effective than other sources of energy.

What is energy?

Energy is the capacity of a physical system to do work. It is a property of objects which can be transferred to other objects or converted into different forms, but cannot be created or destroyed. Energy can take the form of kinetic, potential, thermal, electrical, chemical, nuclear, or other various forms.

Solar energy is an abundant, renewable source of energy that can be used to power homes, businesses, and other applications without harming the environment. Solar energy is produced when energy from the sun is captured and converted into electricity. This electricity can be used to power everyday appliances and other activities.

Solar energy has many advantages over other forms of energy. For starters, it is a clean form of energy that does not create any air or water pollution. Additionally, solar energy does not require any finite resources, such as coal or oil, to produce. This means that solar energy is an inexhaustible source of energy and is able to provide an unlimited amount of power. Solar energy is also very cost effective compared to other sources of energy. Solar installations require a significant upfront cost, but the savings in energy costs can be significant.

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A stick is resting on a concrete step with 1/7 of its total length hanging over the edge. A single ladybug lands on the end of the stick hanging over the edge, and the stick begins to tip. A moment later, a second, identical ladybug lands on the other end of the stick, which results in the stick coming momentarily to rest at theta = 67.3 degrees with respect to the horizontal, as shown in the figure. If the mass of each bug is 3.09


times the mass of the stick and the stick is 11.5 cm long, what is the magnitude of the angular acceleration of the stick at the instant shown? Use =9.81 m/s2.

Answers

Let the stick be divided into two parts, A and B, by the point where the two ladybugs are sitting. Let the length of part A be x and the length of part B be (1-x). Then, we have:

x + (1-x) = 1

Let the distance of the midpoint from the end of part A be d. Then, we have:

d = x/2 - (1/7)

Let the mass of the stick be M and the mass of each ladybug be m. Then, we have:M = 7m

The gravitational force acting on the system produces a clockwise moment about the end of part A, which is given by:

Mg(x/2 - d) = Mg(x/2 - (x/2 - 1/7)) = Mg/7

Let the distance of the first ladybug from the end of part A be L1 and the distance of the second ladybug from the end of part A be L2. Then, we have:

L1 = x

L2 = 1 - (1-x) = x

The moments produced by the ladybugs are given by:

mgL1sinθ

mgL2sinθ

mgL1sinθ = mgL2sinθ = Mg/7

Substituting the given values and solving for θ, we get:

sinθ = M/14m = 1/14

θ = 3.87 degrees

Mg(x/2 - d)sinθ

2mgL1sinθ

Substituting the given values and solving for x, we get:

x = 0.315

Substituting this value into the equation for the moment of inertia, we get:

I = 1.08e-5.

What is an inertia ?

Inertia is the property of an object to resist any change in its state of motion. It is a measure of an object's resistance to changes in its velocity, including changes in direction and speed. Objects with more mass have more inertia, and they require more force to be moved or to stop moving. Inertia is described by Newton's first law of motion, which states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity, unless acted upon by an external force.

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A refrigerator removes 37.0 kcal of heat from the freezer and releases 82.5 kcal through the condenser on the back. How much work was done by the compressor?

Answers

Answer:

work = (37.0 kcal) - (82.5 kcal) = -45.5 kcal

Explanation:

The first law of thermodynamics states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system. In this case, the refrigerator is removing heat from the freezer and releasing it through the condenser on the back. Therefore, the work done by the compressor is:

work = heat removed - heat released

The negative sign indicates that work was done on the refrigerator by an external agent (e.g., an electric motor) to remove heat from the freezer and release it through the condenser.

I got you Bruv :)

Assuming all objects are moving with the same velocity, which statement describes the object with the smallest inertia?

A bowling ball rolls across a street and into a large soccer field.
A driver continues forward after his car takes a sharp turn.
A helicopter is following a high-speed pursuit across town.
A pebble is thrown in space and continues in a straight line.

Answers

A pebble is thrown in space and continues in a straight line. Hence, the correct option is (d). When all objects are moving with same velocity.

Inertia is the resistance of an object to changes in its motion, and it depends on the object's mass. The smaller the mass of an object, the smaller its inertia. In option (d), the pebble has the smallest mass and therefore the smallest inertia among the objects described. The driver in option (b) experiences a force that changes the direction of his motion, so his inertia is greater than that of the pebble. In option (c), the helicopter is actively moving and changing its velocity, so its inertia is greater than that of the pebble. In option (a), the bowling ball has a much larger mass than the other objects and therefore greater inertia.

Therefore, option (d) - A pebble is thrown in space and continues in a straight line - describes the object with the smallest inertia assuming all objects are moving with the same velocity.

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A spring is holding a door open. What type of energy is in the compressed spring?
Group of answer choices

Chemical energy

Spring potential energy

Kinetic energy

Elastic potential energy

Answers

For example, a compressed spring possesses a type of energy referred to as potential energy
Elastic potential energy because of the force to deform an elastic object. When we release the spring, it will turn into Kinetic energy.

Consider a tall building located on the Earth's equator. As the Earth rotates, a person on the top floor of the building moves faster than someone on the ground with respect to an inertial reference frame because the person on the ground is closer to the Earth's axis. Consequently, if an object is dropped from the top floor to the ground a distance h below, it lands east of the point vertically below where it was dropped.
(a)
How far to the east will the object land? Express your answer in terms of h, g, and the angular speed

Answers

The object will land a distance of ωR√(2h/g) east of the point vertically below where it was dropped.

What is rotation of earth?

The rotation of the Earth causes the object to have an eastward velocity component, which causes it to land to the east of the point vertically below where it was dropped.

To determine how far to the east the object will land, we need to consider the following:

The eastward velocity component of the object due to the Earth's rotation.The time it takes for the object to fall from the top of the building to the ground.The distance the object moves eastward during that time due to its eastward velocity component.

Let's assume that the building is located exactly on the equator, so its distance from the Earth's axis is equal to the radius of the Earth, R. The angular speed of the Earth's rotation is given by the symbol omega, which is approximately equal to 7.27 x 10⁻⁵ radians per second.

First, let's find the eastward velocity component of the object due to the Earth's rotation. This can be calculated using the formula:

v = ω * R * cos(latitude)

where;

latitude is the latitude of the location (in this case, 0 degrees for the equator).

Since cos(0) = 1, the formula simplifies to:

v = ωR

Next, let's find the time it takes for the object to fall from the top of the building to the ground. This can be calculated using the formula:

t = √(2h/g)

where;

h is the height of the building and g is the acceleration due to gravity, which is approximately 9.81 m/s²

Finally, let's find the distance the object moves eastward during that time due to its eastward velocity component.

This can be calculated using the formula:

d = vt

Substituting the formulas for v and t, we get:

d = ωR√(2h/g)

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A motor uses a movable pulley to lift a box weighing 100000N to a height of 10m, taking 10 seconds.
a. Calculate the pulling force that the engine has exerted.
b. Calculate the power of the motor.
c. Know the efficiency of the motor is 50%. How much work does it take to lift 100 boxes?

Answers

If a motor uses a movable pulley to lift a box weighing 100000N to a height of 10m, taking 10 seconds.

a. The pulling force that the engine has exerted is  50000N.

b. The power of the motor is  50000W or 50kW.

c. The work   it take to lift 100 boxes is 200,000,000J.

How to find work exerted?

a. The mechanical advantage of a movable pulley is 2, so the pulling force that the engine has exerted is:

Pulling force = weight of the box / mechanical advantage

Pulling force = 100000N / 2

Pulling force = 50000N

b. The power of the motor can be calculated using the formula:

Power = work / time

The work done by the motor is equal to the force applied multiplied by the distance traveled by the box:

Work = force x distance

Work = 50000N x 10m

Work = 500000J

Therefore, the power of the motor is:

Power = work / time

Power = 500000J / 10s

Power = 50000W or 50kW

c. The work done to lift one box is equal to the weight of the box multiplied by the height lifted:

Work per box = weight of the box x height

Work per box = 100000N x 10m

Work per box = 1,000,000J

To lift 100 boxes, the work required is:

Total work = work per box x number of boxes

Total work = 1,000,000J x 100

Total work = 100,000,000J

However, since the efficiency of the motor is 50%, only half of the input energy is converted to useful work. Therefore, the actual work required is:

Actual work = total work / efficiency

Actual work = 100,000,000J / 0.5

Actual work = 200,000,000

Therefore, the motor needs to perform 200,000,000J of work to lift 100 boxes, taking into account its 50% efficiency.

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**NEED ANSWER ASAP**
Identify the constellation, label any of the names stars or asterisms that were covered in class

Answers

Answer:  I believe this constellation is cygnus, the swan.  The brightest star is Deneb at the tail.  The bright double star at the head of the swan is Albireo.

Explanation:  

In an old-fashioned camera, the light sensitive film is placed 2.8 cm behind the camera lens, so that it gives a magnification of 1.2 × 103. The image of a tree on the film is 2.3 cm high. How tall was the real tree?

Answers

The height of the real tree is 1.92 × 10^-3 cm.

We can use the magnification formula to solve this problem. The magnification formula relates the size of the object to the size of its image and is given by: magnification = size of image/size of the object

In this case, the magnification is given as 1.2 × 10^3, the size of the image is 2.3 cm, and we want to find the size of the object, which is the height of the tree. So we can rearrange the formula to solve for the size of the object: the size of the object = size of the image/magnification

Substituting the given values, we get:

size of object = 2.3 cm / 1.2 × 10^3 = 1.92 × 10^-3 cm

So the height of the real tree is 1.92 × 10^-3 cm.

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An incompressible fluid of uniform density flows through an infinitely long pipe. See picture below. In the section shown, the pipe narrows from a diameter of 4 cm to a diameter of x cm, and the fluid is flowing through the narrow region at a speed of 3 m/s. What is the flow speed of the fluid in the wide region of the pipe? a. 16x^2/3 m/s b. 12x^2 m/s c. 3x^2/4 m/s d. 4x^2/3 m/s
e. 3x^2/16 m/s

Answers

The flow speed of the fluid in the wider section of the pipe is x^2/3 m/s. The correct option is d.

Since the pipe is infinitely long, the mass flow rate of the fluid is constant throughout the pipe. Therefore, the product of the density, cross-sectional area, and flow speed is also constant throughout the pipe.

Let's assume that the density of the fluid is ρ and the diameter of the narrower section is x cm. Then, the cross-sectional area of the narrower section is πx^2/4. From the given information, the flow speed in the narrower section is 3 m/s.

Using the equation of continuity,

A1V1 = A2V2

π(4/2)^2V1 = πx^2/4 * 3

V1 = (3/16) * (16x^2/3) = x^2/3

Therefore, the flow speed of the fluid in the wider section of the pipe is x^2/3 m/s. Hence, the correct option is (D).

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Find the heat energy per unit time per unit area (power/area, or 'flux') given off by a body having an emissivity € = 0.500 and temperature of 20.0° C. [Convert to Kelvin temperature.]

Answers

Therefore, the heat energy per unit time per unit area, or flux, emitted by the body is approximately 241.7 W/m².

What is the thermal energy equation?

The heat transfer equation can be written as Q = m  c  T, where Q denotes the amount of heat transferred, m denotes mass, c denotes specific heat, and T denotes the temperature differential. Heat transfer is the process by which heat is transferred from a hot object to a cold object.

The Stefan-Boltzmann Law can be used to determine the thermal energy per unit time per unit area, or flux, released by a body:

F = σ * € * T⁴

To convert 20.0°C to Kelvin, we add 273.15 K to get 293.15 K.

Now we can plug in the values:

F = 5.67 x 10⁻⁸ W/m² K⁴ * 0.500 * (293.15 K)⁴

F ≈ 241.7 W/m²

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Define the term schema as used by piaget

Answers

Answer:A schema, or scheme, is an abstract concept proposed by J. Piaget to refer to our, well, abstract concepts.

Explanation:

Hot air moves into a valley, causing a hot day. Which method of heat transfer is this an example of?
Group of answer choices

Radiation

Kinetic energy

Conduction

Convection

Answers

The ans is convection.

Can you answer this question?

Answers

a) The multimeter in figure 2(a) is set up to measure DC voltage. The setting is indicated by the V with a straight line above it, which stands for "DC voltage".

b) The multimeter in figure 2(a) reads 25.6 V (volts).

c) The multimeter in figure 2(b) is set up to measure DC current. The setting is indicated by the A with a straight line above it, which stands for "DC current".

d) The multimeter in figure 2(b) reads 0.40 A (amperes).

What is multimeter?

A multimeter is an electronic instrument that is used to measure electrical parameters such as voltage, current, and resistance. Multimeters can measure AC and DC voltage, AC and DC current, resistance, continuity, capacitance, and frequency.

What is DC volage?

DC voltage refers to the level or strength of a direct current (DC) electrical signal. Direct current is a type of electrical current that flows in one direction only and does not alternate in polarity. DC voltage can be measured using a multimeter or other voltage measurement instrument, and is typically expressed in volts (V). DC voltage is commonly used in many electronic devices and systems, such as batteries, power supplies, and DC motors.

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A long, cylindrical solenoid with 100 turns per centimeter has a radius of 1.5 cm. (a) Neglecting end effects, what is the self-inductance per unit length of the solenoid? (b) If the current through the solenoid changes at the rate 5.0 A/s, what is the emf induced per unit length?

Answers

The solenoid's induced emf is 0.011 V/m per unit length. Be aware that the negative sign denotes an opposition to the change in current in the direction of the induced emf.

What is the amount of induced emf per unit length if the current through the solenoid changes at a rate of 5.0 A/s?

Faraday's law of induction provides the emf induced per unit length in a solenoid as follows:

ε = -N(dΦ/dt)

A solenoid's magnetic flux is determined by:Φ = μ₀n²AI

where I is the solenoid's current (passing through it).

When we adjust for time in both sides of this equation, we obtain:

dI/dt = 0n2A(dd)

When we add this to Faraday's law, we obtain:

= -0n2A(dI/dt)N

Inputting the values provided yields:

= - (4 10 7 T m/A) (100 000 turns/m)² (7.07×10^−4 m²)(5.0 A/s)

ε = - 0.011 V/m

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During the photoelectric effect experiment, a photon is emitted with 9.60 x10-20 J of kinetic energy. If the work function of the photosensitive surface is 1.68 eV, which is the frequency of the incident light? (h = 6.626 x 10-34 J·s; 1 eV = 1.60 x 10-19 J)

Answers

According to the given statement  5.50 *  10¹⁴Hz is the frequency of the incident light.

What does the term "photoelectric effect" mean?

The photoelectric effect, which happens when light strikes a metal, can release electrons out of its surface. As the electrons that are expelled first from metal are known as emitted electrons, this process is also sometimes referred to as photoemission.

The following equation may be used to determine a photon's energy in terms of frequency:

E = hf

The work function must first be changed from electron volts (eV) to joules (J):

1 eV = 1.602 × 10⁻¹⁹ J

Hence, the work function is:

1.68 eV × 1.602 × 10⁻¹⁹ J/eV = 2.69 × 10⁻¹⁹ J

The emitted photon's kinetic energy is:

E = 9.60 × 10⁻²⁰ J

E = E0 + KE

where KE is the kinetic energy of the released electron and E0 is the work function.

Inputting the values, we obtain:

hf = E0 + KE

hf = 2.69 × 10⁻¹⁹ J + 9.60 × 10⁻²⁰J

hf = 3.65 × 10⁻¹⁹ J

When we solve for f, we obtain:

f = E/h = (3.65 × 10⁻¹⁹ J) / (6.626 × 10⁻³⁴ J s)

f = 5.50 × 10¹⁴ Hz

As a result, the incident light has a frequency of 5.50 *  10¹⁴Hz.

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If light passing through a medium with an index of refraction of 1.0 enters a medium with an index or refraction of 1.45, the beam will…

A. refract away from the normal in the new medium

B. refract towards the normal in the new medium

C. reflect and remain in the first medium

D. pass through without refracting

Answers

Answer:

correct option is B . toward the normal .

Explanation:

as we know , if the ray will pass from denser to rarer mediu, the ray will bend away from the normal

If light passing through a medium with an index of refraction of 1.0 enters a medium with an index or refraction of 1.45, Then the beam will refract towards the normal in the new medium. The correct answer is B.

What is the refractive index?

The refractive index is a measure of how much a material bends or refracts light as it passes through it. It is defined as the ratio of the speed of light in a vacuum to the speed of light in the material:

n = c/v

Where

n = is the refractive index of the material,

c = is the speed of light in a vacuum (approximately 299,792,458 meters per second),

v = is the speed of light in the material.

The refractive index of a material is an important property that determines how much light is bent as it passes through the material. Materials with a higher refractive index bend light more than materials with a lower refractive index.

The refractive index of a material depends on its physical properties, such as its density, chemical composition, and temperature. It also depends on the wavelength of the light passing through the material, as different wavelengths of light can be refracted to different degrees.

Here in the question,

When light passes through a medium with a different index of refraction, it changes its speed and direction, a phenomenon is known as refraction. The angle of refraction depends on the angle of incidence and the indices of refraction of the two media.

The relationship between the angles of incidence and refraction is given by Snell's law:

n₁sinθ₁ = n₂sinθ₂

Where

n₁ and n₂  = are the indices of refraction of the first and second media, respectively,

θ₁ = is the angle of incidence,

θ₂=  is the angle of refraction.

In this case, the light is passing from a medium with an index of refraction of 1.0 to a medium with an index of refraction of 1.45. Since the second medium has a higher index of refraction than the first, the light will bend towards the normal when it enters the second medium.

Therefore, the correct answer is B i.e The beam will refract towards the normal in the new medium.

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in this experiment you need to examine the idea of thermal energy transfer. Using a controlled experiment what might a good question about the variables that affect thermal energy transfer be? Therapist energy transfer depends on many properties, but limit your question to only two

Answers

The thermal conductivity of a material and the temperature differential between two objects affect the rate of thermal energy transfer between them would be an excellent question on the factors that influence thermal energy transfer.

What is an example of regulating the passage of thermal energy?

The amount of radiant energy that enters a residence in the winter is maximised by large windows that face south. Tiny windows that face north help keep heat in. Triple-paned windows minimise thermal energy loss.

What elements influence the transfer of thermal energy?

The surface area, volume, material, and kind of the surface the object is in touch with are all factors that affect how quickly an object transfers energy by heating.

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Consider the heaviest box of 68 kg
that you can push at constant speed across a level floor, where the coefficient of kinetic friction is 0.30, and estimate the maximum horizontal force that you can apply to the box. A box sits on a ramp that is inclined at an angle of 60.0 ∘
above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.30. If you apply the same magnitude force, now parallel to the ramp, that you applied to the box on the floor, what is the heaviest box that you can push up the ramp at constant speed? (In both cases assume you can give enough extra push to get the box started moving.)

Answers

The heaviest box that you can push up the ramp at constant speed is 114kg where the coefficient of kinetic friction is 0.30.

Given the mass of heaviest box (m) = 68kg

The coefficient of kinetic friction of floor is (k1) = 0.30

The angle of inclination of ramp (θ) = 60°

The coefficient of kinetic friction between the box and ramp is(k2) =  0.30

The speed to push box on floor is constant = F

In the first case, the maximum horizontal force that can be applied to the box is equal to the coefficient of kinetic friction multiplied by the weight of the box.

F1 = k1 * m = 68 * 0.30 = 20.4 N.

In the second case, the maximum force that can be applied to the box is equal to the coefficient of kinetic friction multiplied by the normal force that the ramp exerts on the box.

The maximum force on ramp is (F2) = 0.30 x 68 x cos 60.0 = 34.2 N.

Thus it means that you can push a heavier box up the ramp at constant speed than you can across the level floor.

The maximum weight of the box that can be pushed up the ramp at constant speed is (M) = F2/k2 = 34.2 N / 0.30 = 114 kg.

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On a distance vs. time graph, the slope of the line equals the object’s? 9._____

Answers

Answer: speed

Explanation: On a distance vs. time graph, the slop of the line equals how fast an object is going.

Find the Equivalent Resistance for the circuit.

Answers

The equivalent resistance of the circuit is 5.65 k

What is equivalent resistance?

Equivalent resistance of an electric circuit is the equivalent sum of all the resistances in the circuit whether in series or in parallel.

Now, in the circuilt above, we can see that we have two resistances 1.1 k and 4.55 k. We also note that the resistances are in series.

For resistors in series, to find their equivalent resistance, we add them together.

So, the equivalent reistance R = R' + R" where R' = 1.1k and R" = 4.55 k

So, substituting the values of the variables into the equation, we have that

R = R' + R"

= 1.1 k + 4.55 k

= 5.65 k

So, the equivalent resistance is 5.65 k

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when finding the block by hanging it from a force meter. force is measured to be u.sn what mass is the mass of the object in grams

Answers

The mass of the object in grams can be determined by multiplying the force that was measured (u.sn) by the acceleration due to gravity (g). The acceleration due to gravity on Earth is 9.8 m/s².

Define acceleration due to gravity.

The acceleration of an object in free fall within a vacuum is known as gravitational acceleration (and thus without experiencing drag). This is the constant acceleration brought on just by the gravitational pull. Gravimetry is the measurement and analysis of these rates. All bodies accelerate at the same rate in vacuum, independent of their masses or compositions.

The combined effects of gravity and the centrifugal force from Earth's rotation cause the Earth's gravity to be as great as it is at a given location on the surface.

What are the factors affecting acceleration due to gravity?

The four elements listed below have the biggest impacts on g:

1) the Earth's form.

2) Earth's rotational motion.

3) height above the surface of the Earth.

4) length of time spent underground.

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Help me on this question!

Answers

The other ball will go up to a height of 4.3 m after the collision.

What is the height risen by the ball after the collision?

To solve this problem, we can use the principle of conservation of energy and momentum.

Let's first find the initial potential energy of the dropped ball:

E_i = mgh = 5 kg x 9.8 m/s² x 12 m = 588 J

When the ball hits the bar, the momentum is conserved:

m1v1 + m2v2 = (m1 + m2)vf

where;

m1 is the mass of the dropped ball (5 kg), v1 is its initial velocity (0), m2 is the mass of the bar (9 kg), v2 is the velocity of the bar after the collision, and vf is the final velocity of the system (the bar and the dropped ball) after the collision.

We can simplify this equation by noting that the bar is initially at rest, so v2 = 0:

m1v1 + m2v2 = (m1 + m2)vf

5 kg x 0 m/s + 9 kg x 0 m/s = (5 kg + 9 kg + 5 kg)vf

vf = 0 m/s

This means that the system (the bar and the dropped ball) comes to a momentary stop just after the collision.

Now, let's find the final potential energy of the system:

E_f = (m1 + m2)gh

E_f = (5 kg + 9 kg) x 9.8 m/s² x h

E_f = 137.2 J x h

We can equate the initial and final energies:

E_i = E_f

588 J = 137.2 J x h

h = 4.3 m

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please use strictly python and only euler-cromer method
thank you

Answers

Answer:

Driven pendulum = 2.0 f =0.2 q =1.0

Which meteoroid is most likely to reach the Earth’s surface? Explain why this is so, in terms of heat transfer. Use data from the table to support your response.

Answers

The meteoroid that is most likely to reach the Earth's surface is the one with the highest mass-to-surface area ratio which is number 2. This is because as a meteoroid enters the Earth's atmosphere, it encounters a great deal of resistance, which generates heat due to friction.

Meteoroids and Heat Transfer

Meteoroids are small rocky or metallic objects that are present in the solar system. They range in size from tiny particles to large boulders, and they can originate from comets, asteroids, or other celestial bodies. When a meteoroid enters the Earth's atmosphere, it becomes a meteor or a shooting star, and if it survives the descent and reaches the Earth's surface, it is then called a meteorite.

The meteoroid that is most likely to reach the Earth's surface is the one with the highest mass-to-surface area ratio. This is because as a meteoroid enters the Earth's atmosphere, it encounters a great deal of resistance, which generates heat due to friction. This heat is transferred to the meteoroid through conduction, and it can cause the meteoroid to vaporize or break apart. However, a larger meteoroid has more mass to dissipate this heat over, so it is less likely to be completely destroyed.

Additionally, a larger meteoroid has a smaller surface area to mass ratio, which means that there is less surface area to be heated and potentially destroyed by the heat generated during entry into the Earth's atmosphere. Therefore, a larger meteoroid with a higher mass-to-surface area ratio is more likely to survive and reach the Earth's surface.

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Meteoroid 2, with an initial mass of 3.24 kg, is most likely to reach the Earth's surface.

Why is Meteoroid 2 the most likely meteoroid?

This is because the surface temperature of the meteoroid in space before entering the atmosphere is relatively high at 92°C, which means it has a greater amount of heat energy than the other meteoroids. When meteoroids enter the Earth's atmosphere, they encounter resistance from the air, which causes them to slow down and heat up due to friction.

The surface temperature of Meteoroid 2 at 150 km above the Earth's surface is 1727°C, which is higher than the other meteoroids. This suggests that Meteoroid 2 has a greater ability to resist the heat transfer from the high temperatures it reaches during entry into the Earth's atmosphere.

According to the table, the initial mass of Meteoroid 2 is the largest, and it also has the highest surface temperature in space. These factors contribute to the meteoroid's ability to resist heat transfer and increase the likelihood of it reaching the Earth's surface.

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How many nodes are on this standing wave? *​

Answers

The number of nodes present in this standing wave is 6

How many nodes are on this standing wave?

A standing wave is a type of wave that remains in a constant position and does not propagate through a medium. Instead, it oscillates in place between two fixed points, creating a pattern of constructive and destructive interference.

In a standing wave, nodes are the points along the medium that remain stationary, with no displacement or movement of the medium. These nodes occur at locations where the displacement of the medium is always zero, meaning that the amplitude of the wave is zero at those points.

In other words, nodes are the points of minimum energy in the standing wave. They are the points where the crest of the wave meets the trough of the wave, resulting in the cancellation of the wave's amplitude. The distance between two adjacent nodes is half of the wavelength of the standing wave.

In this standing wave, the number of nodes present is 6

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The weighted rod floats with with 6cm of its length under water density (1000kg m3) .what length is under the surface when the rod floated in brine density (1200kg m3)?

Answers

The length of the rod under the surface of the water can be calculated using Archimedes’ principle. The principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.

The buoyant force is given by the formula:

Buoyant force = Density of fluid x Volume of fluid displaced x Gravity

Since the rod is floating, the buoyant force is equal to the weight of the rod. We can use this to calculate the volume of fluid displaced by the rod.

Let L be the length of the rod under the surface of the water when it floated in brine density.

The weight of the rod is given by:

Weight of rod = Density of rod x Volume of rod x Gravity

Since the rod is floating, the weight of the rod is equal to the buoyant force.

Buoyant force = Weight of rod = Density of rod x Volume of rod x Gravity

The volume of fluid displaced by the rod is given by:

Volume of fluid displaced = Volume of rod = Length of rod x Cross-sectional area of rod

Since the cross-sectional area of the rod is constant, we can write:

Buoyant force = Density of fluid x Volume of fluid displaced x Gravity Density of rod x Volume of rod x Gravity = Density of fluid x Length of rod x Cross-sectional area of rod x Gravity

Solving for L, we get:

L = (Density of rod / Density of fluid) x Length of rod

Substituting the given values, we get:

L = (1000 / 1200) x 6 cm = 5 cm

Therefore, the length of the rod under the surface of the water when it floated in brine density is 5 cm.

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Assuming all objects are moving with the same velocity, which statement describes the object with the largest inertia?

A bowling ball rolls across a street and into a large soccer field.
A driver continues forward after his car takes a sharp turn.
A helicopter is following a high-speed pursuit across town.
A pebble is thrown in space and continues in a straight line.

Answers

All objects are moving with the same velocity, A bowling ball rolls across a street and into a large soccer field. Hence, the correct option is (a).

Inertia is the resistance of an object to changes in its motion, and it depends on the object's mass. The greater the mass of an object, the greater its inertia. In option (a), the bowling ball has the largest mass and therefore the greatest inertia among the objects described. The driver in option (b) experiences a force that changes the direction of his motion, so his inertia is not as great as the bowling ball's. In option (c), the helicopter is actively moving and changing its velocity, so its inertia is not as great as the bowling ball's. In option (d), the pebble has a much smaller mass than the other objects and therefore less inertia.

Therefore, option (a) - A bowling ball rolls across a street and into a large soccer field - describes the object with the largest inertia assuming all objects are moving with the same velocity.

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How much force is needed to accelerate a 70kg table at a rate of 4 m/s

Answers

Answer:

F = 280 N

Explanation:

To determine the force needed to accelerate a 70 kg table at a rate of 4 m/s², we can use Newton's second law of motion, which states that force (F) is equal to mass (m) times acceleration (a).

So, we can calculate the force (F) required using the following formula:

F = m x a

where F is the force in Newtons (N), m is the mass in kilograms (kg), and a is the acceleration in meters per second squared (m/s²).

Plugging in the given values, we get:

F = 70 kg x 4 m/s²F = 280 NTherefore, the force needed to accelerate a 70 kg table at a rate of 4 m/s² is 280 Newtons.
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