A150 kg mass is on a cliff 50 m high. what is its potential energy? 9 how much work is done moving a 2.5 kg book to a shelf 3.0 m high? 10. a 150 pound man runs up a stairway 25 feet above ground level in 10 s. how much work did the man do?

Which type of current is produced by a wire breaking magnetic field lines and changing the polarity? a. alternating b. direct c. straight d. alternating and direct

How are momentum and impulse related? impulse is a whim to do something, while momentum keeps it going impulse is another name fore instantaneous momentum the impulse acting on and object is equal to the change of momentum it causes. the impulse that acts on and object is the momentum that results.

Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil