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A 3 x 10^2 kg piano is being lifted at a steady speed from groundlevel straight up to an apartment 10.0 m above the ground. Thecrane that is doing the lifting produces a steady power of 4.00 x10^2 W. How much time does it take to lift the piano?
a. 73.5 s
b. 64.7 s
c. 55.1 s
d. 69.5 s
e. 60.0 s

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