This Random Block has 2 questions: 1 Multiple Answer; 1 Calculated Formula In the industry, they sell the insulation panels according to the R-value, which is defined by R=L/k; where L is thickness of panel and k the thermal conductivity. For the interior of a house you have built, you wish to consider the cost of insulating the ceiling so as to cut down on the heating bill. The house is at [T] C, while the attic above is at [O]C. The ceiling is of dimension [x]m by [y]m. With a ceiling panel rated at Rvalue=[R]m2C/W. What is the rate of heat lost through the panel ( expressed in kW )? Click on only ONE answer below. tQ=Rxy(TO)(1000)tQ=Rxy(TO)(10001)tQ=xyR(TO)(10001)tQ=xy(TO)R(10001)