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juin [17]
2 years ago
10

Newton’s Third Law of Motion states that for every action there is an equal and opposite reaction. Which of these illustrates Ne

wton’s Third Law?
A: Two students of similar mass run into each other. They bounce off each other when they collide.

B: Two students of similar mass run side by side into a wall and punch holes of equal size before emerging on the other side.

C: Two students of similar mass run in opposite directions, but one accelerates at twice the rate of the other.

D: Two students of similar mass run at the same speed in opposite directions on a track. They will collide with 400 Newtons of force in 400 meters.
Physics
1 answer:
Angelina_Jolie [31]2 years ago
4 0

Answer:

A

Explanation:

An equal and opposite reaction happens when they run into eachother and bounce off. What makes it equal is when they have the same amount of force applied when they collided.

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For a satellite of mass mS in a circular orbit of radius rS around the Earth, determine its kinetic energy, K . Express your ans
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Since it is asking you to find the kinetic energy in relation to the mass, radius, mechanical energy (total energy), and constants, you will need to setup an equation first to "find" the Mechanical Energy, so that we can then solve for the kinetic energy, as from my experience with high school physics, there is only the graviational potential energy equation and force in relation to celestial bodies.

Knowing the ME is the total energy, we add up the energies of the system. Since it is being influenced by the Earth, as per the problem stating the satellite has circular orbit around the Earth, we know there is gravitational potential. Since it is orbiting, we can assume some type of velocity. Nothing else that we need to worry about should be occuring at this level of physics, leaving you with

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ME-Ug=K

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since there is a negative being subracted, we can change that to

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