The interior of a refrigerator has a surface area of 2.7 m². it is insulated by a 3.2 cm thick material that has a thermal conductivity of 0.0241 j/ms◦c. the ratio of the heatextracted from the interior to the work done by the motor is 7.2% of the theoretical maximum. the temperature of the room is 43◦c, and the temperature inside the refrigerator is 9 ◦c. determine the power required to run the compressor.