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Mathematics, 19.11.2020 02:40 jesseniaindiaaoyr75n

A set of pulleys is used to lift a piano with a mass of 102 kg. The piano is lifted 3 meters in 1 minutes. How much power is used?

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A set of pulleys is used to lift a piano with a mass of 102 kg. The piano is lifted 3 meters in 1 mi...
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