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Physics, 22.07.2019 09:30 joaquin42

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?

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