In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 13.0°C. the temperature at the inside surface of the wall is 20.8°C. the wall is 0.114m thick and has an area of 9.21m². assume one kilowatt*hour of electrical energy costs $0.50. how many hours are required for one dollar's worth of energy to be conducted through the wall?
