Question: A heat engine is operating on a Carnot cycle and has a thermal efficiency of 5 0 . 5 percent. The waste heat from this

A heat engine is operating on a Carnot cycle and has a thermal efficiency of 50.5 percent. The waste heat from this engine is rejected to a nearby lake at 60F at a rate of 800 Btu/min.
Determine the temperature of the source.

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