Work Power and Energy

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Energy is measured in the same units as

A crane raises a 200 Newton weight to a height of 50 meters in 5 seconds. The crane does work at the rate of

A force is applied to a spring causing it to stretch. If the applied force is DOUBLED, then the potential energy stored in the spring will be

According to classical Physics, in which of the following cases is work being done?

At what point during the fall of an object from a table will its kinetic energy equal its potential energy?

When a 5 kilogram block is lifted from the ground to a height of 10 meters, the gravitational potential energy of the block

A student does 300 Joules of work pushing a box of books 3 meters due north, then does 400 Joules of work pushing the box of book 4 meters west. She does

The amount of work done against friction to slide a box in a straight line on a level surface depends most on