A composite protective wall is made of two sheets of stainless steel that are each 1/2 inch thick with a 2 inch layer of fiberglass between them. The thermal conductivities of the materials are: kss = 9.25 and kb = 0.08, with units of Btu/hr-ft-F. The heat transfer rate per unit area (heat flux) through the composite structure is 52. 5 Blu hr ft What is the thermal resistance of each layer of the wall and the overall temperature difference across the wall?