Question: During each cycle, a heat engine ejects (75 mathrm{~J}) of thermal energy for every (115 mathrm{~J}) of input thermal energy. This engine is used to

During each cycle, a heat engine ejects $75 \mathrm{~J}$ of thermal energy for every $115 \mathrm{~J}$ of input thermal energy. This engine is used to lift a $375-\mathrm{kg}$ load a vertical distance of $27.0 \mathrm{~m}$ at a steady rate of $52.5 \mathrm{~mm} / \mathrm{s}$. How many cycles of the engine are needed to accomplish this task?

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