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The second floor of a house is 6.0 m above the street level. a) How much work is required to lift a 1200-kg grand piano

The second floor of a house is 6.0 m above the street level.

a) How much work is required to lift a 1200-kg grand piano to the second-story level?

b) If it required 65 seconds to lift the grand piano, how much power was required?

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