The general process in which solid particles form from gas is called sublimation (option C).
Each substance has three phases it can change into; solid, liquid, or gas. There are six ways a substance can change between these three phases; melting, freezing, evaporating, condensing, sublimation, and deposition. These processes are reversible and each transfers between phases differently:
Melting: The transition from the solid to the liquid phaseFreezing: The transition from the liquid phase to the solid phaseEvaporating: The transition from the liquid phase to the gas phaseCondensing: The transition from the gas phase to the liquid phaseSublimination: The transition from the solid phase to the gas phaseDeposition: The transition from the gas phase to the solid phaseLearn more about sublimation: https://brainly.com/question/28626755
#SPJ11
how the spring potential energy depends on the kinetic energy and the gravitational potential energy of the object
The more the kinetic energy of the object attached, more will be the maximum potential energy of the spring. Similarly, if object is hanging in vertical direction, maximum potential energy of the spring will be more if gravitational potential energy is high.
The spring potential energy depends on the kinetic energy and the gravitational potential energy of the object in the following way:
When an object is lifted to a certain height, it gains potential energy, which is referred to as gravitational potential energy. When an object is in motion, it possesses kinetic energy. When an object is compressed or stretched, it acquires potential energy, which is referred to as spring potential energy. Spring potential energy is the energy saved in the compressed or extended state of the spring. When the spring is no longer extended or compressed, it is released and the potential energy is transformed into kinetic energy. When the spring is compressed, its potential energy is at its maximum. When the spring is fully extended, the potential energy is at its minimum. When a force acts on the spring, it gains kinetic energy, which is transformed into spring potential energy after a certain distance.
Spring potential energy formula: Elastic potential energy = (1/2) kx²
Where,k = spring constant x = displacement of spring.
To learn more about kinetic energy refer to: brainly.com/question/25959744
#SPJ11
brandon is on one side of a river that is 80 m wide and wants to reach a point 300 m downstream on the opposite side as quickly as possible by swimming diagonally across the river and then running the rest of the way. find the minimum amount of time if brandon can swim at 2 m/s and run at 4 m/s.
The minimum time Brandon can swim at 2 m/s is 144.5 seconds and run at 4 m/s is 55 seconds, with the distance traveled diagonally being 289 m
We have to find the minimum amount of time taken to reach the other side, as Brandon wants to reach a point 300 m downstream on the opposite side as quickly as possible by swimming diagonally across the river and then running the rest of the way.
So, the distance he covers in water = distance diagonally in water
And, the time he takes to cover this distance in water = distance/Speed => t = diagonal distance/speed of swimming
Also, the distance he covers in running = perpendicular distance
And, the time he takes to cover this distance in running = distance/Speed => t = perpendicular distance/speed of running
Given:
Width of river = AB = 80 m
Distance to reach = AC = 300 m
Speed of Swimming = 2 m/s
Speed of Running = 4 m/s
The minimum time taken will be the time taken to cover the total distance i.e. AB + BC
We know that AC = AB² + BC² (by Pythagoras theorem)
We have AC = 300, AB = 80, and speed of swimming = 2 m/s. Let BC = x, then we have:
x² = √(300² - 80²)
x² = √(90.000 - 6400)
x² = √(83.600)
x = 289 m
So, the time he takes to cover this distance in water is:
t = diagonal distance/speed of swimming
t = BD/Speed of swimming
t = 289/2 = 144.5
Now, he covers the remaining perpendicular distance CD by running which is equal to 220m
The time he takes to cover this distance in running is:
t = perpendicular distance/speed of running
t = CD/Speed of running
t = 220/4 = 55 s
Learn more about the speed of swimming at https://brainly.com/question/29513950
#SPJ11
what has mobed to produce the charge on the plates
Charges need to be transferred from one plate to the other to generate a charge on a capacitor's plates. Electrons are usually moved from one plate to the other by attaching the plates to a power source, such as a battery.
The plate attached to the negative terminal of the battery becomes negatively charged and the plate connected to the positive terminal of the battery becomes positively charged when the power source is connected.
Until the potential difference between the plates equals the potential difference between the battery connections, electrons move from the negative plate to the positive plate. The flow of electrons stops at this moment, and the capacitor is fully charged.
In an electric field that is created between the plates of a capacitor, the charges on the plates are retained. The potential differential between the plates is produced by this electric field and is inversely proportional to the charge on the plates and their separation from one another.
learn more about capacitors here
https://brainly.com/question/21851402
#SPJ1
What happens to light when it travels from air into water?
Craters on planet surfaces are the result of impacts by large objects such as asteroids and comets. The impact of a 10 km diameter asteroid that struck Earth 65 million years ago is believed to have caused the mass extinction of over 70 percent of all living species at that time. Place these results in sequence as they occurred. Items in order Items (5 items) (Drag and drop into the appropriate area) Farliest event (Drag and drop into the appropriate area) Earliest event Existing species die from hostile conditions. The atmosphere clouds with dust and debris. Asteroid impact creates a crater, New species evolve in ecological niches. Firestorms sweep the planet.
From soonest to most recent: The globe is burned up by firestorms, an asteroid strike creates a crater, the atmosphere is clouded with dust, existing species perish due to the harsh environment, and new species emerge in ecological niches.
Because water is essential to life on Earth, scientists seek for it to point to potential habitats. Since these stars are long-lived enough for life to start and develop, astronomers believe that intelligent life is far more probable to exist in the vicinity of stars of types F, G, K, and M.
Astronomers can arrange their probabilistic thinking using the Drake equation. Since it can form lengthy chains that contain numerous additional atoms, carbon is a good building block for life.
To know more about potential click here
brainly.com/question/9605409
#SPJ4
A solid cylinder with mass M. radius R, and rotational inertia 1/2MR² rolls without slipping down the inclined plane
shown above. The cylinder starts from rest at a height H. The inclined plane makes an angle with the horizontal.
Express all solutions in terms of M, R, H, theta, and g.
a. Determine the translational speed of the cylinder when it reaches the bottom of the inclined plane.
b. Show that the acceleration of the center of mass of the cylinder while it is rolling down the inclined plane is (2/3)g sin theta.
c. Determine the minimum coefficient of friction between the cylinder and the inclined plane that is required for the cylinder to roll without slipping.
The acceleration of the center of mass of the cylinder is (2/3)g sinθ, and the minimum coefficient of friction between the cylinder and the inclined plane is μ_min = tanθ.
What is accelaration?Acceleration is the rate of change of velocity of an object. It measures the rate at which an object's speed and direction changes. It is a vector quantity, meaning it has both magnitude and direction. Acceleration can be positive, negative, or zero. Positive acceleration indicates an object is speeding up, while negative acceleration indicates it is slowing down. Zero acceleration indicates an object is maintaining its current speed and direction.
Determine the translational speed of the cylinder when it reaches the bottom of the inclined plane.
b. Show that the acceleration of the center of mass of the cylinder while it is rolling down the inclined plane is (2/3)g sin theta.
c. Determine the minimum coefficient of friction between the cylinder and the inclined plane that is required for the cylinder to roll without slipping.
Answer:
a. The translational speed of the cylinder when it reaches the bottom of the inclined plane is given by v = (2gh sinθ/3)^1/2.
b. The acceleration of the center of mass of the cylinder is given by a = (2/3)g sinθ. This can be shown as follows: The acceleration due to gravity is g cos θ, so the normal force is Mg cos θ. The rotational inertia of the cylinder is 1/2MR², and its angular acceleration is a/R. By Newton's second law, the resultant force acting on the cylinder is ma = Mg cosθ - 1/2MR² a/R. Therefore, a = (2/3)g sinθ.
c. The minimum coefficient of friction between the cylinder and the inclined plane required for the cylinder to roll without slipping is μ_min = tanθ. This can be shown as follows: The force of friction acting between the cylinder and the inclined plane is given by F_f = μN = μMg cos θ. The force of friction must be equal to the centripetal force acting on the cylinder, which is Mv²/R. Therefore, μ = v²/gR = (2gh sinθ/3)^1/2/gR = tanθ.
In conclusion, we have shown that the translational speed of the cylinder when it reaches the bottom of the inclined plane is given by v = (2gh sinθ/3)^1/2, the acceleration of the center of mass of the cylinder is (2/3)g sinθ, and the minimum coefficient of friction between the cylinder and the inclined plane is μ_min = tanθ.
To know more about acceleration click-
https://brainly.com/question/460763
#SPJ1
What is the work done on the box from x = 0m to 10m?
The force applied to the box multiplied by 10m equals the work performed on the box from x = 0m to 10m.
The work done on the box from x = 0m to 10m is the product of the force applied on the box and the displacement of the box. The work done is calculated as:
Work = Force × Displacement
Therefore, the work done on the box from x = 0m to 10m is:
Work = Force Applied × (10m - 0m)
work = Force Applied × 10m
Therefore, the work done on the box from x = 0m to 10m is equal to the force applied on the box multiplied by 10m.
learn more about work done Refer:brainly.com/question/30073908
#SPJ1
The motion of Earth's molten rock shows characteristic patterns which can be analyzed and explained scientifically. Such analysis and explanation is impossible without understanding the principles of which kind of energy? A chemical B electrical C thermal D radiant
Answer: C) thermal energy.
Explanation:The motion of Earth's molten rock (such as in the mantle) and the resulting patterns can be analyzed and explained scientifically by understanding the principles of thermal energy. This is because the movement of the molten rock is primarily driven by the transfer of heat and temperature differences within the Earth's interior, leading to processes like convection and heat conduction.
A student is planning on making a change to a circut witch changhe will increase the current
There are several ways to increase the current in an electrical circuit, but it's important to keep in mind that any changes made should be done safely and within the limitations of the circuit components. Here are some possible options:
Decrease resistance: Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance. Therefore, decreasing resistance in a circuit will increase the current flowing through it. This can be done by replacing a high-resistance component with a lower-resistance one.
Increase voltage: Similarly, increasing the voltage in a circuit will also increase the current, as long as the resistance remains constant. This can be done by connecting a higher voltage power supply or battery to the circuit.
Add parallel branches: Adding more branches to a circuit in parallel can increase the overall current, as each branch provides an additional path for current to flow.
Increase capacitance or inductance: In circuits that contain capacitors or inductors, increasing the capacitance or inductance can increase the amount of current flowing through the circuit.
It's important to note that any changes made to a circuit should be done carefully and with an understanding of the potential risks involved. Seek guidance from a qualified professional if necessary, and always follow proper safety protocols.
To learn more about current refer to:
brainly.com/question/16880541
#SPJ4
according to the big bang theory, why do we live in a universe that is made of almost entirely of matter rather than antimatter?
According to the big bang theory, we live in a universe that is made of almost entirely of matter rather than antimatter because of a slight excess of matter over antimatter that occurred during the early universe.
This excess is thought to be due to a process called baryogenesis, which involves the production of baryons (such as protons and neutrons) from an initial state of pure energy during the first fractions of a second after the big bang.
The exact mechanism by which baryogenesis occurred is not well understood, but several possible theories have been proposed, including the idea that it is related to the violation of CP symmetry (which refers to the combination of charge conjugation and parity) in the early universe.
In any case, the slight excess of matter over antimatter meant that when matter and antimatter particles collided and annihilated each other during the early universe, there were more matter particles left over, which eventually led to the formation of the structures we see in the universe today.
For more question on big bang theory click on
brainly.com/question/29014839
#SPJ11
a 9v battery is connected across two large parallel plates that are separated by 5.5 mm of air, creating a potential difference of 9.0 v between the plates. calculate the magnitude of the electric force, fe, on an electron at the negative plate.
The magnitude of the electric force on an electron at the negative plate is [tex]2.62 x 10^-16 N[/tex].
When a 9V battery is connected across two parallel plates separated by 5.5 mm of air, it creates an electric field between the plates, which in turn exerts a force on any charged particle placed in the field. To calculate the magnitude of the electric force on an electron at the negative plate, we first use the formula E = V/d to find the electric field strength. Substituting the given values, we get [tex]E = 1.64 x 10^3 N/C[/tex]. Then, using the formula F = qE, where q is the charge of an electron, we get the magnitude of the electric force as [tex]2.62 x 10^-16 N[/tex], with a negative sign indicating an attractive force towards the positive plate.
learn more about electric force here:
https://brainly.com/question/2526815
#SPJ4
in one to two sentences explain how electromagnets move a maglev train
Electromagnets are used to create a magnetic field which levitates the train above the track, and then by varying the current in the electromagnets, the train can be propelled forward or slowed down or stopped.
How does magnetic train levitate?Maglev trains use the principle of electromagnetic suspension to levitate and propel the train. Electromagnets are placed on the underside of the train, and these electromagnets are energized with a current that creates a magnetic field.
This magnetic field interacts with the magnetic field of a conductor in the track, which creates an upward force that levitates the train above the track.
Once the train is levitated, the next step is to propel it forward. The same electromagnets that are used for levitation can be used to propel the train forward.
By varying the current in the electromagnets, the magnetic field created can be made to push or pull the train forward or backward. This process is known as magnetic propulsion or maglev propulsion.
Learn more about electromagnets here: https://brainly.com/question/12555869
#SPJ1
Right now, my biggest challenge in developing information literacy is...
Ill know that I've overcome this challenge when I am able to...
Intention
By the time I finish this course, I intend for my score on the Information Literacy section of the Discovery Wheel to be...
To overcome my biggest challenge in developing information literacy, I will..
Action
To act on my intentions, I will adopt the following habits:
We can see here completing the sentences, we have:
Right now, my biggest challenge in developing information literacy is understanding how to effectively evaluate sources for accuracy and reliability.
I'll know that I've overcome this challenge when I am able to confidently and consistently identify trustworthy sources of information and explain my reasoning for doing so.
What is information literacy?Information literacy refers to the ability to identify, locate, evaluate, and effectively use information from a variety of sources. It involves a set of skills and competencies that enable individuals to effectively navigate the vast amounts of information available in today's digital age.
Continuation:
By the time I finish this course, I intend for my score on the Information Literacy section of the Discovery Wheel to be significantly higher than it is currently.
To overcome my biggest challenge in developing information literacy, I will practice evaluating sources regularly and seek feedback from peers and instructors.
To act on my intentions, I will adopt the following habits: regularly fact-checking information before accepting it as true, seeking out multiple sources to corroborate information, and utilizing critical thinking skills to evaluate the credibility of sources.
Learn more about information literacy on https://brainly.com/question/682500
#SPJ1
object a has a mass m and a speed v , object b has a mass m/2 and a speed 4v , and object c has a mass 3m and a speed v/3 . rank the objects according to the magnitude of their momentum.
The ranks of the objects according to the magnitude of their momentum is object B > object A > object C.
Object A has a mass of m and a speed of v, Object B has a mass of m/2 and a speed of 4v, and Object C has a mass of 3m and a speed of v/3. To rank the objects according to their magnitude of momentum,
we must use the equation p = mv (momentum = mass x speed).
For Object A, p = mv = mv.
For Object B, p = mv = (m/2)(4v) = 2mv.
For Object C, p = mv = (3m)(v/3) = mv.
From the equation we can see that Object B has the greatest magnitude of momentum as its momentum is twice that of Object A and C. Objects A and C have the same magnitude of momentum, but Object C has a higher mass. Therefore, the order of the objects according to their magnitude of momentum is:
Object BObject AObject CTo know more about momentum refer here:
https://brainly.com/question/30677308#
#SPJ11
2 identical metal spheres having equal and similar charges repel each other with a force of 103 N when they are placed 10 cm in a medium of dielectric constant 5. Determine the charge on each sphere
The charge on each sphere would be 5.89 × 10^-8 C.
Electrostatic forcesThe electrostatic force between two charged spheres is given by Coulomb's law:
F = (1/4πε) * (q1*q2)/r^2
where F is the electrostatic force, q1 and q2 are the charges on the two spheres, r is the distance between them, and ε is the permittivity of the medium.In this case, the spheres have equal and opposite charges, so we can write:
F = (1/4πε) * (q^2)/r^2
where q is the charge on each sphere.
We are given that the force between the spheres is 103 N, the distance between them is 10 cm (0.1 m), and the dielectric constant of the medium is 5.
Substituting these values into the equation above, we get:
103 = (1/4π58.85*10^-12) * (q^2)/(0.1)^2
Solving for q, we get:
q = ± 5.89 × 10^-8 C
Since the spheres have equal and opposite charges, we take the absolute value of q to get the charge on each sphere:
q = 5.89 × 10^-8 C
Therefore, each sphere has a charge of 5.89 × 10^-8 C.
More on electrostatic force can be found here: https://brainly.com/question/9774180
#SPJ1
Calculate the unknown resistance R of the circuit as shown in figure, all resistance are connected in the series. The current is flowing through circuit is 2A and battery is of 20 voltage.
a. 1Ω
b. 2Ω
c. 4Ω
d. 6Ω
e. 12Ω
None of the given options result in a total resistance of 10Ω. Therefore, there is no correct answer among the options provided.To calculate the unknown resistance R of the circuit connected in series with a current of 2A and a battery voltage of 20V, follow these steps:
1. First, we need to determine the total voltage drop across the circuit. Since the battery voltage is 20V, the total voltage drop across all resistances in the circuit is also 20V.
2. According to Ohm's Law, Voltage (V) = Current (I) × Resistance (R). We are given the current (I) as 2A.
3. Now, we can use Ohm's Law to find the total resistance (R_total) of the circuit: V = IR → 20V = 2A × R_total → R_total = 20V/2A = 10Ω.
4. The problem states that all resistances are connected in series, which means the total resistance is the sum of all individual resistances: R_total = R1 + R2 + R3 + R (unknown resistance).
5. From the given options, we need to find the value of R that, when added to the other resistances, results in a total resistance of 10Ω.
6. By analyzing the options, we can see that the correct answer is:
a. 1Ω: R_total = 1Ω + 2Ω + 4Ω + 6Ω = 13Ω (not equal to 10Ω)
b. 2Ω: R_total = 1Ω + 2Ω + 4Ω + 2Ω = 9Ω (not equal to 10Ω)
c. 4Ω: R_total = 1Ω + 2Ω + 4Ω + 4Ω = 11Ω (not equal to 10Ω)
d. 6Ω: R_total = 1Ω + 2Ω + 4Ω + 6Ω = 13Ω (not equal to 10Ω)
e. 12Ω: R_total = 1Ω + 2Ω + 4Ω + 12Ω = 19Ω (not equal to 10Ω). Therefore none of the given option will be correct.
Here is the complete question link : https://www.toppr.com/ask/question/calculate-the-unknown-resistance-r-of-the-circuit-as-shown-in-figure-all-resistance-are/
To know more about resistance click here
brainly.com/question/30712325
#SPJ11
A baseball is dropped from the top of a 85 m tall building. Ignoring air resistance, how fast will it hit the ground?
Answer:
40.8 m/s
Explanation:
We can use the kinematic equation that relates the final velocity (Vf) of an object dropped from rest to the distance it has fallen (h) and the acceleration due to gravity (g):
Vf^2 = 2gh
where g is the acceleration due to gravity, which is approximately 9.8 m/s^2.
Plugging in the given values, we get:
Vf^2 = 2 * 9.8 m/s^2 * 85 m
Vf^2 = 1666
Vf = sqrt(1666) ≈ 40.8 m/s
Therefore, the baseball will hit the ground with a speed of approximately 40.8 m/s.
what are someone of the sources of errors in the ohm's law experiment
two waves have the same amplitude of 3 meters. they arrive at the same place at the same time exactly in step with each other (the two crests from the two waves overlaps). what is this an example of? what will be the amplitude of the resulting wave?
The amplitude of this constructive wave, for example, will be 6 metres.
What is amplitude and example?It refers to the greatest departure from equilibrium that a periodic motion item may exhibit. As an example, consider how a pendulum moves through its equilibrium point (straight down) before expanding to its farthest point.
How can amplitude be measured?In most cases, amplitude is estimated by looking at a wave graph and determining the height of the wave from rest. The strength and intensity of the wave is gauged by its amplitude. For instance, the amplitude of a sound wave will indicate the volume of the sound.
To know more about Amplitude visit:
https://brainly.com/question/9525052
#SPJ1
If the skid mark from a crashed vehicle measures approximately 70 ft, and the measured friction coefficient is 0.25, what was the initial vehicle speed prior to braking?
A. 65 mph
B. 40 mph
C. 23 mph
D. 15 mph
Therefore, the answer is C. 23 mph is the maximum initial speed that would result in a skid mark of 70 ft with a friction coefficient of 0.25.
What is the formula for final velocity?Initial velocity (u) squared plus two times the acceleration (a) times the displacement equals final velocity (v) squared (s). Final velocity (v) is equal to the square root of initial velocity (u) squared plus two times the acceleration (a) times displacement when v is the variable being solved for (s).
[tex]v^2 = u^2 + 2as[/tex]
Where:
v is the final velocity (0 mph, as the vehicle comes to a stop)
u is the initial velocity we want to find
a is the acceleration due to friction, which is equal to the friction coefficient multiplied by the acceleration due to gravity [tex](a = 0.25 * 32.2 ft/s^2 = 8.05 ft/s^2)[/tex]
s is the distance the vehicle traveled before coming to a stop, which is the length of the skid mark (s = 70 ft)
Substituting the given values into the equation, we get:
[tex]0^2 = u^2 + 2(0.25 * 32.2 ft/s^2)(70 ft)\\[/tex]
Simplifying:
[tex]0 = u^2 + 2(8.05 ft/s^2)(70 ft)\\0 = u^2 + 1134 ft^2/s^2\\u^2 = -1134 ft^2/s^2[/tex]
Since we cannot have a negative value for velocity, we can conclude that the initial velocity must be less than 23 mph.
To know more about speed visit:-
brainly.com/question/28224010
#SPJ1
alpha particles (charge q= qe, mass m=6.6 x 10^6 x 10^27 kg) move at 1.6 x 10^6 m/s. what magnetic field strength would be required to bend them to a circular path of radius r=0.14 m
The magnetic field strength required to bend alpha particles to a circular path of radius r=0.14 m is 0.1975 T.
Determining the magnetic field strength:
First, we are to calculate the magnetic field required to bend alpha particles to a circular path of radius r = 0.14 m using the equation;r = (mv) / (qB) Where r = 0.14 mm, v = 1.6 × [tex]10^{6}[/tex] m/sq = q, e = 1.6 × [tex]10^{-19}[/tex] C, B = magnetic field Strength (T).
By substituting the values given above into the equation, we have 0.14 = (6.6 × [tex]10^{-27}[/tex] × 1.6 × [tex]10^{6}[/tex])/(1.6 × [tex]10^{-19}[/tex] × B). Simplifying the equation further, we have B = 0.1975 T
Therefore, the magnetic field strength required to bend alpha particles to a circular path of radius r=0.14 m is 0.1975 T.
To know more about alpha particles, visit:
https://brainly.com/question/15087470
#SPJ11
what would have happened if the cosmological constant of hydrogen were slightly larger? group of answer choices the stars would have burned out too soon for life to be given a chance to form the stars would not have been sufficiently large enough to maintain warm temperatures hydrogen would have been the only element in the universe, and life would not have emerged hydrogen would have been converted to helium, and there would be no enduring formulation of stars
The consequences if the cosmological constant of hydrogen were slightly larger would be that the stars would have burned out too soon for life to be given a chance to form.
In cosmology, the cosmological constant is a constant term introduced by Albert Einstein into his field equations of general relativity. It represents the energy density of the vacuum of space.
In the theory of general relativity, it is presumed to act as a cosmological repulsive force for accelerating the Universe's expansion. The cosmological constant is widely considered one of the best contenders for dark energy.
According to present observations, dark energy accounts for approximately 68 percent of the total energy in the Universe, while the remaining 27 percent is dark matter, which cannot be detected by electromagnetic radiation. The remaining 5% is standard matter.
Hence, this means that the cosmological constant is essential in sustaining the Universe as it is.
To answer the question, the consequences of a slightly larger cosmological constant of hydrogen would be that the stars would have burned out too soon for life to be given a chance to form.
Know more about cosmological constant here:
https://brainly.com/question/29427155
#SPJ11
a flea jumps by exerting a force of straight down on the ground. a breeze blowing on the flea parallel to the ground exerts a force of on the flea while the flea is still in contact with the ground. find the direction and magnitude of the acceleration of the flea if its mass is . do not neglect the gravitational force
The direction of acceleration of the flea is upward and the magnitude of acceleration is given by: a = [tex]\frac{F_{breeze} - mg}{m}[/tex] where [tex]F_{breeze}[/tex] is the force exerted by the breeze on the flea, m is the mass of the flea, g is the acceleration due to gravity, and a is the resulting acceleration of the flea.
When the flea jumps, it exerts a force straight down on the ground, which according to Newton's third law, results in an equal and opposite force exerted by the ground on the flea, causing it to move upward. However, the breeze blowing parallel to the ground exerts a force on the flea in the opposite direction to its motion, which reduces the upward force exerted by the ground, and hence the acceleration of the flea.
To calculate the magnitude of acceleration of the flea, we need to find the net force acting on the flea. This is given by the difference between the force exerted by the breeze and the gravitational force acting on the flea, which is given by mg. The direction of the net force is upward since the force exerted by the breeze is in the opposite direction to the motion of the flea.
The magnitude of acceleration can then be calculated using Newton's second law, a =[tex]{F_{net}/m[/tex], where[tex]F_{net}[/tex] is the net force and m is the mass of the flea.
Therefore, the direction of acceleration of the flea is upward and the magnitude of acceleration is given by: a = [tex]\frac{F_{breeze} - mg}{m}[/tex] where the force exerted by the breeze, F_breeze, and the mass of the flea, m, are given in the problem statement. The acceleration due to gravity, g, is approximately 9.8 m/s².
To know more about direction of acceleration, refer here:
https://brainly.com/question/25415733#
#SPJ11
3. Calculate the electric force that exists between two objects that are 5. 0 x
10-2 m apart and carry charges of 2. 5 x 10-6 C and −3. 2 × 10¯6 C. Is this force
attractive or repulsive?. (1 point)
-6
The electric force between the two objects with charges of 2.5 × 10⁻⁶ C and -3.2 x 10⁻⁶ C and a distance of 5.0 × 10⁻² m is calculated to be -4.608 N, indicating an attractive force between them.
The electric force between two charged objects is given by Coulomb's Law, which states that:
F = kq₁q₂ / r²
where F is the electric force, q₁ and q₂ are the charges of the two objects, r is the distance between them, and k is Coulomb's constant, which has a value of approximately 9.0 × 10⁹ N·m²/C².
Plugging in the given values, we get:
F = (9.0 × 10⁹ N·m²/C²) * (2.5 × 10⁻⁶ C) * (-3.2 × 10⁻⁶ C) / (5.0 × 10⁻² m)²
F = -4.608 N
The negative sign indicates that the force is attractive, meaning that the two objects will be pulled towards each other.
Therefore, the electric force between the two objects is 4.608 N and it is attractive.
Learn more about electric force here: brainly.com/question/2526815
#SPJ4
Comlpete question:
Calculate the electric force that exists between two objects that are 5.0 × 10⁻² m apart and carry charges of 2.5 × 10⁻⁶ C and -3.2 x 10⁻⁶ C. Is this force attractive or repulsive?
2. A(n)
the same distance and the same direction.
Answer:
"Translation" simply means moving. In a translation, every point of the shape must move the same distance and in the same direction.
Convert the following: (a) 1 000 kg into g. (b) 1 000 000 m into km (c) 0.0000037 kg to mg. (d) 0.00000125 m to mm.
how do you do it
Answer:
a) 1000000 g
b) 1000 km
c) 3,7 mg
d) 0,00125 mm
Explanation:
a) 1kg has 1000g, so we can make a proportion:
1 kg - 1000 g
1000 kg - x g
Use the property of the proportion to find x:
[tex]x = 1000 \times 1000 = 1 \times {10}^{6} \: g = 1000000 \: g[/tex]
b) 1 km has 1000 m, so let's do the same thing as we did earlier:
1 km - 1000 m
x km - 1000000 m
[tex]x = \frac{1000000}{1000} = 1000 \: km[/tex]
c) 1 g has 1000 mg and 1 kg has 1000 g, so 1 kg will have 1000 × 1000 =
[tex] {10}^{ 6} \: mg = 1000000 \: mg[/tex]
1 kg - 1000000 mg
0,0000037 kg - x mg
x = 0,0000037 × 1000000 = 3,7 mg
d) 1 m has 100 cm and 1 cm has 10 mm, so that means 1 m has 100 × 10 = 1000 mm
1 m - 1000 mm
0,00000125 m - x mm
x = 0,00000125 × 1000 = 0,00125 mm
I think I got it right
What does Neuwirth argue that the people in these communities need?
In her book "The Power of Community: How Cuba Survived Peak Oil," author and activist, Naomi Klein, describes the work of Lisa Margonelli and her book "Oil on the Brain: Petroleum's Long, Strange Trip to Your Tank."
Margonelli, who toured the US to research her book, discovered that while Americans may have little idea about where their gasoline comes from or how it gets to their tanks, people who live in areas where oil and gas are extracted and refined understand all too well.
Lisa Margonelli wrote, “A lot of communities see the oil industry as either something that gives them jobs, or something that poisons their air, water, and soil. But what I came to see is that what people in those communities really want is not so much jobs or environmental protection. They want respect, democracy, and a say in their future."
Similarly, Neuwirth argues that people in communities such as those he profiled in his book need agency and empowerment. They need to have the ability to shape their own lives and futures, rather than being subject to the whims of outside interests such as developers or government officials.
This agency can take many forms, such as access to education and training, organizing and mobilizing around community issues, and the ability to build and sustain local businesses and economies. By providing these opportunities, these communities can begin to take control of their own destinies and build more sustainable, equitable futures.
To know more about democracy, visit:
https://brainly.com/question/13158670
#SPJ1
which sentence most accurately describes electrically charged objects? (2 points) group of answer choices they are attracted to one other without coming into contact. they are negatively charged objects that are attracted to each other. they attract or repel other charged objects without touching them. they attract other objects after they have been in contact with them.
Electrically charged objects attract or repel other charged objects without touching them. This is due to the force of attraction or repulsion between charged objects, which depends on their charges and the distance between them.
Electrically charged objects attract or repel other charged objects without touching them accurately describes electrically charged objects.
Electrically charged objects are those that have an imbalance of positive or negative charge.
These objects are either positively charged, meaning they have lost electrons, or negatively charged, meaning they have gained electrons. These charged objects can attract or repel other charged objects without touching them.
The force of attraction or repulsion between two charged objects is known as electric force.
The direction and strength of this force depend on the charges of the objects and the distance between them. Like charges (positive-positive or negative-negative) repel each other, while opposite charges (positive-negative) attract each other.
Electrically charged objects play an important role in many scientific and technological applications.
For example, the principles of electric charge are used in electrostatic precipitators to remove pollutants from the air, in the design of particle accelerators, and in the function of batteries and electrical circuits.
For similar question on electric force.
https://brainly.com/question/30236242
#SPJ11
There is a 1.5 kg box on the table.
a) Draw the forces acting on the box and the table.
b) Calculate the weight of the box, its weight and the counteraction force of the table.
Answer:
a) The forces acting on the box and the table are as follows:
Weight of the box acting downwards (due to gravity)
Normal force acting upwards (from the table)
Frictional force (if the box is not moving, the frictional force will be equal and opposite to any force applied to move it)
b) The weight of the box is given by:
Weight = Mass x Acceleration due to gravity
Weight = 1.5 kg x 9.81 m/s^2
Weight = 14.715 N
The weight acts downwards due to gravity.
The counteraction force of the table is equal in magnitude and opposite in direction to the weight of the box, as per Newton's Third Law of Motion.
Therefore, the counteraction force of the table on the box is also 14.715 N, but it acts upwards to balance the weight of the box.
Explanation:
when dr. hewitt cuts the broom right through the center of gravity, how do the weights of the two sides of the broom compare?
If Dr. Hewitt cuts the broom exactly through its center of gravity, then the weights of the two sides of the broom will be equal.
This is because the center of gravity is the point at which the weight of the object can be considered to be concentrated, and cutting the object at this point would result in two halves of equal weight.
However, it is important to note that if the broom is not perfectly symmetrical, the location of the center of gravity may not be at the exact physical center of the broom. In this case, Dr. Hewitt would need to locate the actual center of gravity of the broom and cut it at that point to achieve equal weights on each side.
Nonetheless, if the broom is cut exactly at its center of gravity, the weights of the two sides of the broom will be equal regardless of its shape or size.
Therefore, if the broom is cut exactly at its center of gravity, each half will have half the total weight of the broom.
To learn more about center of gravity:
https://brainly.com/question/4208016
#SPJ11