Question: A freezer has a temperature TC = 23C. The air in the kitchen has a temperature Th = + 27C. Since the heat insulation is

A freezer has a temperature TC = –23◦C. The air in the kitchen has a temperature Th = + 27◦C. Since the heat insulation is not perfect, some heat flows into the freezer at a rate of 50 W. Find the power of the motor that is needed to maintain the temperature in the freezer.

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