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A pulley system used to lift an engine is rated 90% efficient. The 530 kg engine needs to be raised to a height of 5.0

A pulley system used to lift an engine is rated 90% efficient. The 530 kg engine needs to be raised to a height of 5.0 m. How much work must be done using the pulley system? 0 32 OOO J 0 29000 J 0 26 OOO J 0 23 OOO J

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