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A 3.0-kg cylinder falls vertically from rest in a very tall, evacuated tube 20m above the surface of the earth.

1) what is the cylinder's initial potential energy?

2) what is its kinetic energy after it has fallen 6.0m?

3) what is its speed after the cylinder has fallen 6.0m?

4) what is its kinetic energy just before it hits the earth?

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Category:- Physics
Reference No.:- M91092144

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