Physics, 16.12.2021 23:50, zitterkoph

A heat pump has a coefficient of performance (COP) of 4. If the heat pump absorbs 20 cal of heat from the cold outdoors in each cycle, the heat expelled (in cal) to the warm indoors is

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A heat pump has a coefficient of performance (COP) of 4. If the heat pump absorbs 20 cal of heat fro...