Asked by Phil
Piano movers hoist a 200 kg piano 10 m high in 30 s using a rope and simple pulley. What is their power output?
(Points : 1)
70 W
700 W
7,000 W
6 × 10^5 W
(Points : 1)
70 W
700 W
7,000 W
6 × 10^5 W
Answers
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