Why is it that the lower mass individual may appear to experience more force from the larger mass player in a collision?

Answers

Answer 1

Answer:

One possible reason is that change in velocity is greater for the individual with lower mass.

Explanation:

By Newton's Law of Mechanics, magnitude of the force on two players would be the same in the collision. Let [tex]F[/tex] denote this magnitude.

Assume that the duration of the collision is [tex]\Delta t[/tex]. In this collision, magnitude of the impulse [tex]J[/tex] on each player would be the same: [tex]J = F\, \Delta t[/tex].

At the same time, impulse is equal to the change in momentum. Specifically, if the mass of one player is [tex]m[/tex] and the change in their velocity is [tex]\Delta v[/tex], the change in their momentum would be [tex]m\, \Delta v[/tex]. Thus:

[tex]m\, \Delta v = J = F\, \Delta t[/tex].

Rearrange to obtain an expression for the change in velocity:

[tex]\begin{aligned}\Delta v &= \frac{J}{m} = \frac{F\, \Delta t}{m}\end{aligned}[/tex].

In other words, in this collision, change in velocity is inversely proportional to the mass of the participant. Hence, even though the two players experienced force of the same magnitude, the participant with a lower mass would experience a greater change in velocity.


Related Questions

A 1.0 kg toy
car is released at the top of a frictionless track on the left and rolls off of the track
from its right side ramp. The car starts at a height of 0.80 m, goes through a 0.50 m diameter
loop, and exits the ramp at a height of 0.25 m.
L
0.80 m
B
0.50 m
0.25 m

Answers

The 0.80 m is the starting height of the car at the top of a frictionless track.

What is frictionless?

Frictionless is a type of technology that enables activities or processes to occur without resistance or difficulty. It is used in a variety of fields, from banking to digital marketing, and it generally involves the use of software or other digital tools that simplify complex tasks and make them easier to accomplish. With frictionless technology, users are able to perform tasks faster, more securely and with minimal effort. For example, in banking, frictionless technology is used to enable customers to make payments or transfers without having to enter their credentials or payment information each time. Similarly, in digital marketing, frictionless technology is used to enable customers to make purchases without having to enter their billing information multiple times.

The 0.50 m is the diameter of the loop that the car goes through. The 0.25 m is the height of the car when it exits the ramp.

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maximum current problem. if the current on your power supply exceeds 500 ma it can damage the supply. suppose the supply is set for 37 v. what is the smallest resistance you can measure? please write your answer with integer value.

Answers

The smallest value of resistance that we can measure is 74 Ω(ohm), if the maximum power supply is 500 ma and the supply voltage is 37 V.

According to Ohm's law, the current in a conductor is directly proportional to the potential difference between its two ends. In other words, the ratio of the potential difference(V) and the electric current(I) is a constant in a conductor. This constant is called "resistance(R)". its unit is Ω(ohm). Mathematically,

V = IR

R = V/I

The maximum current, I = 500 ma = 500 × 10⁻³ A

Voltage supply, V = 37 Volts

R = 37/ (500 × 10⁻³) = 74 Ω

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the visual phenomenon whereby an elongated object protruding toward or away from a viewer appears shorter than its actual length, as though compressed, is known as:

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The visual phenomenon in which an elongated object moving towards or away from the viewer appears compressed and shorter than its actual length is called linear perspective.

Linear perspective is based on a fixed point of view. A visual phenomenon in which an elongated object projected toward or away from the viewer appears to be compressed shorter than it actually is. Linear perspective is a system that creates the illusion of depth on a flat surface. All parallel (perpendicular) lines in a painting or drawing using this system converge at a single vanishing point on the horizontal line of the composition. An example of linear perspective is the obvious convergence of two parallel lines, especially when viewing a long two-lane highway.

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Which of the following happens to an object in free fall right after it’s thrown upwards?
(Select all that apply.)
a. Increasing Ug
b. Decreasing Ug
c. Decreasing K
d. Increasing K
e. None of the above

Answers

The a body has been thrown upwards then there would be Decreasing Ug. Option B

What is free fall?

If we are talking about the free fall, let us bear in mind that we have to know that this is the situation where the object would be falling freely under the influence of gravity.

We must note that the acceleration due to gravity would cause the object to move at a constant velocity as the object is falling freely on the surface of the earth. The value of the acceleration due to gravity would be decreasing as the object is moving upwards.

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By what factor does the kinetic energy of a car change when its speed is tripled?
(A) no change at all
(B)factor of 3
(C) factor of 6
(D) factor of 9

Answers

By a factor of 9, the Kinetic energy rises.

What happens to kinetic energy of an object if its speed is tripled?The formula for kinetic energy is 1/2 m b square. Half a metre will be used if speed is to be tripled. Divide equation 2 by 19 by 2 m b square by 9, and the resulting energy is 9 tens points. Thus, if an object's speed is tripled, its kinetic energy increases by a factor of nine.According to K=12mv2, kinetic energy. Now, if the velocity v is decreased to 13 percent of the initial velocity while maintaining the same mass, the kinetic energy is decreased to 19 percent of its initial value (since kinetic energy is directly proportional to the square of velocity). Q.As a result, if a body's momentum is tripled, its kinetic energy will increase by a factor of nine.

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A 120 kg skydiver jumped out of a plane 3500m in the air. Determine the Gravitational potential energy of the skydiver

Answers

The gravitational potential energy of the skydiver is 4.2 × 10⁷.

Define Gravitational potential energy of the skydiver

The amount of work done on an object is directly proportional to the force applied on the object and the distance it moves in the direction of that force. The speed of an object does not directly affect the amount of work done on it. However, if the force and distance are constant, the work done on an object will be greater if it is moving at a higher speed because the object will have greater kinetic energy.

In addition, the time taken to do the same amount of work on an object will be less if it is moving at a higher speed, as the work is done over a shorter period of time.

The required details for gravitational in given paragraph

Joules (120 x 9.8 x 3500)

= 42,000,000 or 4.2 × 10⁷

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Two spheres are launched horizontally from a 1.2 m high table. Sphere A is launched with an initial speed of 3.5 m/s. Sphere B is launched with an initial speed of 1.5 m/s.
What is the time for the sphere A to hit the floor?
What is the time for the sphere B to hit the floor?
What is the distance that sphere A travels from the edge of the table?
What is the distance that sphere B travels from the edge of the table?

Answers

(a) The time for the sphere A to hit the floor is 0.5 second.

(b) The time for the sphere B to hit the floor is 0.5 second

(c) The distance travelled by sphere A from the edge of the table is 1.75 m.

(d) The distance travelled by sphere B from the edge of the table is 0.75 m.

What is the time of motion of sphere A?

The time of motion of sphere A is calculated by applying the following formula.

t = √ ( 2h / g )

where;

h is the height of fall of sphere Ag is acceleration due to gravity

t = √ ( 2 x 1.2 / 9.8 )

t = 0.5 second

The time of motion of sphere B is calculated as;

t = √ ( 2 x 1.2 / 9.8 )

t = 0.5 second

The distance travelled by sphere A from the edge of the table is calculated as;

d = vt

where;

v is the speed of sphere At is the time of motion

d = 3.5 m/s  x 0.5 s

d = 1.75 m

The distance travelled by sphere B from the edge of the table is calculated as;

d = 1.5 m/s  x  0.5 s

d = 0.75 m

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a 90-kg fullback, running at 5.0 m/s attempts to dive across the goal line for a touchdown. just as he reaches the goal line, he is met head-on in midair by two 73-kg linebackers, one moving at 3.0 m/s and the other at 4.0 m/s. if they all become entangled as one mass, with what velocity do they travel?

Answers

The final velocity of the combined mass of the fullback and the two linebackers is 4.09 m/s.

To find the velocity of the combined mass of the fullback and the two linebackers, we need to use the principle of conservation of momentum. This principle states that the total momentum of an isolated system remains constant if no external forces act on it.

First, we need to find the initial momentum of the fullback by multiplying his mass (90 kg) by his velocity (5.0 m/s):

Initial momentum of fullback = 90 kg * 5.0 m/s = 450 kg m/s

Next, we need to find the initial momentum of the two linebackers by multiplying each of their masses by their velocities:

Initial momentum of first linebacker = 73 kg * 3.0 m/s = 219 kg m/s

Initial momentum of second linebacker = 73 kg * 4.0 m/s = 292 kg m/s

Now, we need to add the initial momentum of the three individuals to find the total initial momentum:

Total initial momentum = 450 kg m/s + 219 kg m/s + 292 kg m/s = 961 kg m/s

Since the final velocity of the combined mass is going to be the same as the initial momentum, we can say:

Final velocity = 961 kg m/s / (90 kg + 73 kg + 73 kg) = 961 kg m/s / 236 kg = 4.09 m/s

Therefore, the final velocity of the combined mass of the fullback and the two linebackers is 4.09 m/s.

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the intensity of the sun's rays do not fall uniformly across earth's surface. this is driven, in large part, by:

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The intensity of the rays of sun does not fall uniformly across the surface of the earth. In large part, this is driven by latitude and season.

There is a relationship between latitude and temperature across the world, as typically temperatures are warmer approaching the Equator while cooler approaching the Poles. There exist variations, though, as other factors such as ocean currents, elevation, and precipitation affect climate patterns.

As a result latitude and season make the intestity of the sun ray's to fall nonuniformly all around the globe.

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an airplane starts from a brakes locked position and accelerates down the runway at 11 ft/s2. it reaches takeoff airspeed at 275 ft/s. what is the time for the airplane to reach takeoff speed?

Answers

The aircraft takes off from the runway with its brakes locked. At such a speed of 200 fps, the aircraft takes off. Find out when the plane will arrive.

How quickly do airplanes take off and land?

The ground run can be a little bit longer if a decreased power takeoff is being performed. Prior to takeoff, a typical commercial aircraft accelerates to a speed of 120–140 knots. It will need a strong sustained acceleration to complete it in 30 to 35 seconds. Pilots watch for this as they roll out for takeoff.

What is the total vertical force acting on the aircraft when it takes off?

When a result, there is no net vertical force acting on the aircraft as it takes off. When a result, there is no net vertical force acting on the aircraft as it takes off. The net vertical force acting on the aircraft as it ascends is therefore 65000 Newton.

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Four cannonballs, each with mass M and initial
velocity V, are fired from a cannon at different
angles relative to the Earth. Neglecting air friction,
which angular direction of the cannon produces the
greatest projectile height?

1. 70 degrees
2. 20 degrees
3. 45 degrees
4. 90 degrees

Answers

4. 90 degrees angular direction of the cannon produces the greatest projectile height.

which angular direction of the cannon produces the greatest projectile height?The angular direction of the cannon that produces the greatest projectile height is 90 degrees. This is because at 90 degrees, the cannonball has the greatest initial velocity component in the vertical direction, and the least initial velocity component in the horizontal direction.With no air friction, the vertical component of velocity will remain constant and the horizontal component of velocity will be zero, resulting in the cannonball traveling in a parabolic arc with maximum height at the top. Therefore, the ball fired at 90 degrees will reach the greatest height. The cannonball fired at 70 degrees will also have a significant vertical component of velocity, but its horizontal component will be greater than that of the 90 degree shot, resulting in a lower maximum height.The cannonball fired at 20 degrees will have a small vertical component and a large horizontal component resulting in the trajectory being relatively flat with a much lower maximum height.The cannonball fired at 45 degrees will have an equal vertical and horizontal component of velocity, resulting in a trajectory somewhere in between the 90 and 20 degree shots, but with a lower maximum height than the 90 degree shot.

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why can you not use the second kinematic equation to solve for the height of an object thrown upward

Answers

The second kinematic equation (vf = vi + at) is used to calculate the final velocity of an object based on its initial velocity and acceleration.

It cannot be used to calculate the height of an object since it does not take into account the vertical displacement of the object. To calculate the height of an object, you must use the first kinematic equation (y = yi + vi*t + 1/2*a*t^2).

The study of motion in a system of bodies is called kinematics, which does not directly take into account the forces or potential fields influencing the motion. In other terms, kinematics investigates the distribution of momentum and energy among interacting bodies.

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a child is riding in a wagon. what reference point might have been used if an observer said the child was not moving?

Answers

If an observer said the child was not moving, the reference point might have been used is persons in the wagon. The conclusion is from the concept of relative motion.

What is relative motion?

The relative motion is the motion of an object depending on frames of reference. The motion is relative and not absolute depending on frames of reference used in that motion.

For example, you are in a car moving and see people walking on the side of the road. A person who also in a car will say you are not moving. But, the people on the side of the road will say that you are moving.

A child is riding in a wagon. We know that there are some people in the wagon.

An observer said that the child is not moving. Find reference point might have been used!

Based on the explanation above, the people in the wagon see the child not moving. Otherwise for people around, the child is moving.

Thus, the reference point have been used is people in the wagon.

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A spring will never do negative work as it moves toward from equilibrium.
a. Tue
b. False

Answers

Let us consider a spring-mass system. When the spring is being stretched or shortened, the spring force acting on the mass is in a direction that is opposite to the direction of the displacement of the mass and so the work done by it is negative. On the other hand, as the spring returns to its equilibrium position, from a state of extension or compression, the spring force acting on the mass is in the direction of displacement of the mass and so the work done by it is positive. Spring force is the force that try to restore the original shape of the spring. When you stretch a spring you change it's configuration. And trust me spring doesn't like that. How do I know that the spring doesn't like that? That's because as soon as you will remove the force that you are applying on the spring the spring will immediately try to regain it's original shape. For the time when you were stretching or contacting the spring you were making spring attain a configuration that wasn't its original configuration. You had to apply force to change it's shape because spring force was opposing your action. So for that time interval spring force is in opposite directions to displacement -the work done by spring force is negative. That work done is said to stored providing spring potential energy. As soon as you leave the spring, the spring moves back towards 0 position that's when the spring force is doing positive work. Force and displacement have same direction. So it depends on the situation. If you have a spring and wish to stretch it further, you have to exert a force in a direction opposite to the spring force and hence in the same direction as the extension, so you are doing work on the spring. On the other hand, if a stretched or compressed spring returns to its equilibrium length, then work is done by the spring, which is positive meaning b. False is the answer because the positive or negative varies on the situation.

A ball freely falling at 20 m/s will in the next second have a speed of ______. 30 m/s. What two units of measurement are necessary for describing speed?

Answers

Two units of measurement are necessary to describe the speed, are meter and second.

Speed of an object is nothing but the distance travelled by the object in unit time. A freely falling ball experience the acceleration due to gravity in the downward direction. The value of acceleration due to gravity of the earth is roughly taken as 10 m/s². If the initial speed is 20 m/s. and Time, t = 1 sec. Then speed in the next second will be v = u + at

v = 20 + 10 × 1

v = 30 m/s

Meter is the SI unit of length or distance and second is the SI unit of time.

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two particles, an electron and a proton, are initially at rest in a uniform electric field of magnitude 468 n/c. if the particles are free to move, what are their speeds (in m/s) after 48.8 ns?

Answers

A homogeneous electrostatic force of strength 564 N/C is initially present around two substances, an electrons and a proton. if the atoms and molecules are unrestrained.

When both a proton and an electron are inserted into an electric?

According to our inquiry, a electron as well as a proton will attract one another with a electrical force of equal strength when they are placed in a magnetic field because of their opposing polarities. However, because of their opposing charges, the force will act in the opposite direction.

Are neutrons simply the sum of protons and electrons?

Proton, electron, and an antineutrino do not make up a neutron. These particles are simply byproducts of its decay. One up quark, two down quarks, and numerous "intermediary particles" known as gluons, that carry a interaction between the quarks, make up a neutron.

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Charge of uniform density (80 nC/m3) is distributed throughout a hollow cylindrical region formed by two coaxial cylindrical surfaces of radii 1. 0 mm and 3. 0 mm. Determine the magnitude of the electric field at a point which is 4. 0 mm from the symmetry axis. Group of answer choices

Answers

The magnitude of the electric field when it is located at a distance of 4.0 mm from the symmetry axis is 4.5 N/C

What is magnitude?

The absolute or relative direction or size of an object's motion in the sense of motion can be used to define magnitude. It is extensively utilized to convey something's size or scope. In physics, the term "magnitude" typically means "distance" or "quantity."

According to the question,

The charge density = 80 nC/m3.

The inner radius, r' = 1 mm

The outer radius, r'' = 3 mm

distance,  r = 4 mm

The linear charge density is given by

λ = ρ π ( r"²- r²).

λ = 80 ×10⁻⁹  × 3.14 ×  10 ⁻⁶× (9-1).

λ = 2 × . 10⁻¹²

The electric field is given by,

E = λ/4πe0r.

E = 4.5 N/C.

Therefore, the magnitude of the electric field at a point that is 4.0 mm from the symmetry axis is found to be 4.5 N/C.

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solve: a 7.00-g bullet is fired into a ballistic pendulum whose bob has a mass of 0.950 kg. if the bob rises to a height of 22.0 cm, what was the initial speed of the bullet?

Answers

Answer: Intital speed of bullet is 286 m/s.

What is law of conservation of energy?

--The law of conservation of energy states that energy can neither be created nor be destroyed.

-- Although, it may be transformed from one form to another.

--  If you take all forms of energy into account, the total energy of an isolated system always remains constant.

According to law of conservation we have,

V1 = Vbu + Vb/ Vb( 2gh)^1/2

Mass of Bob is 0.950 Kv

Mass of bullet is 7g.

By solving above bw get intial speed of bullet is 289m/s.

What is energy ?

--In physics, energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.

--Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed.

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atoms join to form chemical groups called ______, which in turn join to form ______

Answers

Atoms join to form chemical groups called molecules, which in turn join to form compounds.

What are Molecules?

A molecule is a group of two or more atoms that are chemically bonded together. The bonding is achieved through the sharing or exchange of electrons between the atoms. The atoms in a molecule can be the same or different elements and can be arranged in various ways to form different types of molecules.

Molecules can be either simple or complex, depending on the number of atoms and the types of chemical bonds that hold the atoms together. Simple molecules, such as H2 and O2, are composed of only a few atoms, while complex molecules, such as proteins and DNA, can contain hundreds or even thousands of atoms.

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if a ball is thrown straight up into the air, what is its acceleration as it moves upward? magnitude

Answers

The ball is thrown straight up into the air, its acceleration is -9.8 m/s²(upwards).

What is acceleration?

A measure of how quickly an object's velocity changes is called acceleration. It has both a direction and a magnitude because it is a vector quantity. The magnitude of acceleration is measured in units of meters per second squared (m/s²) or feet per second squared (ft/s²). The direction of acceleration is the direction of the change in velocity.

Positive acceleration and negative acceleration are the two different types of acceleration. Positive acceleration occurs when an object's speed increases, and negative acceleration occurs when an object's speed decreases.

As the ball is thrown straight up into the air, it initially accelerates upward due to the force of the throw. As it moves upward, it eventually reaches its maximum height and begins to fall back down to the ground.

The acceleration of the ball as it moves upward is equal to the force of gravity acting on it, which is 9.8 m/s², but in the opposite direction. The direction of acceleration is opposite to the direction of velocity, so the acceleration is upward, but negative. 9.8 m/s² is the magnitude of the acceleration.

So, as the ball is thrown straight up into the air, its acceleration is -9.8 m/s² (upwards).

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A car drives 500 m to the East and then 200 m back to the West.

What is the objects total distance

Answers

The frequency of a wave is the wide variety of oscillations or cycles according to unit of time, commonly measured in hertz (Hz). The objects total distance is 700 m.

What is wavelength?

The wavelength is the distance between  consecutive peaks or troughs in a wave, normally measured in meters. The velocity of a wave is the distance it travels consistent with unit of time, generally measured in meters in keeping with 2d. The connection among frequency, wavelength, and velocity is defined by way of the equation: velocity = frequency x wavelength.

This courting is referred to as the wave equation. As frequency increases, wavelength decreases and as frequency decreases, wavelength will increase.

The total distance of the object is

500 m + 200 m

= 700 m.

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what is dark matter? where does it reside in our galaxy? what makes dark matter and dark energy so mysterious and so important?

Answers

Dark matter is a hypothetical form of matter that is thought to make up approximately 85% of the total matter in the universe.

What is dark matter and where does it reside?

It is called "dark" because it does not emit, absorb, or reflect any electromagnetic radiation, making it invisible to telescopes.

It is believed that dark matter resides in the halo of our galaxy, which is a large, spherical region that surrounds the galaxy. It is also thought to be present in galaxy clusters and in the large-scale structure of the universe.

Dark matter and dark energy are mysterious because they cannot be directly observed through telescopes or other instruments. They are detected only through their gravitational effects on visible matter, such as the rotation of galaxies and the expansion of the universe.

Dark matter and dark energy are important because they play a crucial role in the formation and evolution of structure in the universe. The gravitational pull of dark matter is thought to be responsible for the formation of galaxies and galaxy clusters, while dark energy is thought to be driving the accelerated expansion of the universe.

Understanding the properties and behavior of dark matter and dark energy is a major focus of current research in cosmology and astrophysics.

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from smallest to largest, what is our cosmic address? 1 answer 1 earth 2 answer 2 solar system 3 answer 3 virgo supercluster 4 answer 4 choose... 5 answer 5 choose... 6 answer 6 choose...

Answers

Celestial bodies known as astronomical bodies are those that exist naturally in the cosmos. Earth, the solar system, the Milky Way galaxy, the local group, the Virgo cluster, and the cosmos are the things in order of smallest to biggest size.

How do heavenly objects work?

Celestial objects are celestial bodies that are naturally occuring and have a variety of dimensions, masses, distances, and atmospheres. The collection of other celestial objects in it contains the universe as its biggest member.

The neighborhood cluster of galaxies known as Virgo or the local super cluster is made up of a large number of galaxies. The cluster that houses the solar system is called the Milky Way galaxy.

The region of the galaxy that contains astronomical objects like the Sun, planets, stars, moon, etc. is known as the solar system. One of the planets in a solar system is Earth.

The universe, earth, solar system, milky way galaxy, local group, and Virgo cluster are therefore the astronomical objects in order of size.

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Note: The correct question would be as bellow,

Put the following astronomical objects and bodies in order from smallest to largest

1. solar system

2. Milky Way Galaxy

3. universe

4. Virgo cluster

5. Earth

6. Local Group

what term is used to describe the continuous heating and cooling of magma within the mantle

Answers

The term is used to describe the continuous heating and cooling of magma within the mantle Convection currents.

What results in the mantle's convection currents?

The heat from the earth's core and the mantle causes convection currents to form in the mantle. Mantle material rises in hot columns slowly. The hotter material spreads out at the top of the asthenosphere and pushes the cooler material aside. The mantle receives this cooler substance once more.

Where is and what the mantle is?

Earth's interior is made up primarily of the mantle, which is solid. The Earth's thin outer layer, the crust, and its dense, extremely hot core are separated by the mantle. The mantle makes up a staggering 84% of the total volume of the Earth and is roughly 2,900 kilometers (1,802 miles) thick.

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When the mantle moves, heat is transferred from the blazing core to the brittle lithosphere, a process known as mantle convection.

What does the term "mantle convection" mean? Convection currents.Mantle Convection.When the mantle moves, heat is transferred from the blazing core to the brittle lithosphere, a process known as mantle convection.The temperature of the mantle lowers over extended periods of time as it is heated from below and cooled from above.To the convection of the mantle, all these components are present.In the Earth's mantle, convection currents have been found.The mantle's convection circulation is caused by heated mantle material ascending from the mantle's depths while cooler mantle material sinking.The shifting of the Earth's crustal plates is assumed to be caused by this kind of circulation.Convection, an advective heat-transfer mechanism, is the term used to describe the mantle's large-scale motion, in which hot material rises in some locations while colder material sinks in others.

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an electron moves with a constant horizontal velocity of 3.0 x 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 17.0 cm horizontally and 40.0 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)

Answers

The constant vertical acceleration provided by the deflector is a = 1.11 * 10^6 m/s^2.

What is meant by acceleration?

The rate of change of velocity is called acceleration. Acceleration means that the speed is changing, but not always.

y = vi*t + (1/2)at^2

Where y is vertical displacement, vi is  initial vertical velocity, t is time of travel, and a is the constant acceleration.

So, y = (1/2)at^2

Given, vertical displacement of the electron (y = 40.0 cm)

x = vt

x is the horizontal displacement and v is  horizontal velocity.

So, t = x/v

t = (17.0 cm) / (3.0 x 106 m/s) = 5.67 x 10^-8 s

y = (1/2)(a)(t)^2

a = 2y/t^2

a = 2(40.0 cm) / (5.67 x 10^-8 s)^2

So, the acceleration provided by the deflector is a = 1.11 * 10^6 m/s^2.

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Which one of the forces in the diagram below must do negative work (W < 0) while acting
throughout the displacement shown? (Select all that apply.)
a. F1
b. F2
c. F3
d. F4

Answers

The forces F2 and F3 are the forces that would do a negative work.

What is negative work?

We have to to note that the term work has to do with the product of the force and the distance of the object that has been covered in the direction of the force.

Now we know that we have the system of forces that is acting at a common point. We must note that the quadrant in which the force falls is what would tell us the kind of work that the force would have to do.

The forces that are in the negative quadrants are the ones that would do a negative work.

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QUESTION 6 New cars have a crumple zone to help minimise injuries during accidents. In addition seat belts, air bags and padded interiors can reduce the chance of death or serious injury.
6.1 Use principles in Physics to explain how air bags can reduce the chance of death or injury. (3)​

Answers

Using principles in Physics the way in which air bags can reduce the chance of death or injury is that the airbag increases the time over which the velocity of the head changes so that the acceleration is reduced, and thus the force is reduced.

What is an Airbag?

This is referred to as a vehicle occupant-restraint system using a bag designed to inflate extremely quickly, then quickly deflate during a collision.

The gas in the bag can only leave at a certain rate which makes it deflates slowly, and the time duration of the deceleration increases which therefore leads to the force being reduced during a collission and reduces the risk of injury.

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consider a projectile fired vertically in a constant gravitational field. for the same initial velocities, find the times required for the projectile to reach its maximum height (a) with no resisting force and (b) for a resisting force proportional to the instantaneous velocity of the projectile. (c) show that the result in (a) can be recovered from the result in (b).

Answers

Compare the amount of time needed is for projectile to go from its initial velocity to its highest point. (A) for a resistive force of zero.

What types of things are velocities?

A number called velocity describes the speed and direction of a point's motion. Because it has both direction and magnitude, velocity is referred to as a linear momentum and cannot be fully expressed in numerical terms, unlike time or length, that are scalar numbers.

How is speed measured?

According to the equation v = s/t, velocity (v) is indeed a vector quantity which quantifies displacement (and change in position, s), over change in time (t).

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what are the (a) magnitude and (b) direction of the net electrostatic force on particle 4 due to the other three particles? all four particles are fixed in the xy plane, and q1

Answers

The magnitude and direction of the net electrostatic force on particle 4 due to the other three particles are 6.16×10^−24 N counterclockwise from the +x axis.

The individual force magnitudes are found using Eq., with SI units (soa=0.02 m) and k as in Eq., We use magnitude-angle notation (convenient if one uses a vector-capable calculator in polar mode), listing the forces due to +4.00q,+2.00q, and −2.00q

charges: (4.60×10^−24∠180 deg  )+(2.30×10^−24∠−90 deg )+

(1.02×10^−24∠−145 deg)= (6.16×10^−24 ∠−152 deg )

Therefore, the net force has magnitude of 6.16×10^−24 N.

The direction of the net force is at an angle of −152 deg or 208 deg

measured counterclockwise from the +x axis).

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The complete question is :

n Fig. what are the direction of the net electrostatic force on particle 4 due to the other three particles? All four particles are fixed in the xy plane, and q1 = - 3.20 × 10^-19C, q2 = + 3.20 × 10^-19 C, q3 = + 6.40 × 10^-19 C. d 3=2.00 cm.


The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 99 cm apart on the same axle. From the angular displacement 26° of the two bullet holes in the disks and the rotational speed 407 rev / min of the disks, we can determine the speed of the bullet.






What is the speed of the bullet?
Answer in units of m/s.

Answers

Answer:

To calculate the speed of the bullet, we can use the equation v = rωθ, where r is the distance between the disks, ω is the angular speed, and θ is the angular displacement of the bullet holes. In this case, v = 99 cm(2π/60)(26°/360) = 7.8 m/s. Therefore, the speed of the bullet is 7.8 m/s.

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