PHYSICS MIDDLE SCHOOL

Suppose you are standing on a skateboard and shoot a paintball gun at your friend. Which direction relative toyour friend will you move? Explain. _

Answers

Answer 1
Answer:

Answer:

I will move way from my friend.

Explanation:

As I shoot the paintball towards my friend, the gun exerts a force on it that sends it moving towards my friend, and according to newtons third law, the paintball exerts an equal and opposite force on me, which causes me to move in the opposite direction of the movement of the paintball; this direction is away from my friend.

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Which has more Potential Energy a car parked on the top of the hill,a person on the top of the same hill sitting down eating a sandwich, or a man running fast at the bottom of the same hill?

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As long as you're talking about gravitational potential energy the car at the top of the hill is correct. If you're talking about chemical potential energy, it would depend on how much gas is in the tank and what the contents of the sandwich were.
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Efficiency = (energy that does the job) / (total energy used)

               =                               (45 J)  /  (120J)

I think you can handle the division.

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The answer is potential energy. Kinetic energy is created by motion.
It would be potential energy because kinetic is when it is in motion

I'm not sure about these 2 questions

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2) Newton's third law: For every action, there is an equal and opposite reaction.

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Describe the energy transformations that occur when you bounce a ball?

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The potential energy of the ball changes into kinetic energy.
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