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A construction worker drops a stack of shingles with a mass of 9.0 kg from the top of a house 36 m above the ground. Determine the potential energy of

the stack of shingles relative to the ground just before the worker drops it.22 x 102 1 а. 3.2 х 102J b. 3.2 x 103 J С. — 3.2 х 103 J d. None of the above

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