Question: A 2-cm-thick copper sheet is pressed against a sheet of aluminum. What should be the thickness of the aluminum sheet so that the temperature of

A 2-cm-thick copper sheet is pressed against a sheet of aluminum. What should be the thickness of the aluminum sheet so that the temperature of the copper–aluminum interface is (T1 + T2)/2, where T1 and T2 are the temperatures at the copper–air and aluminum–air interfaces?

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