Problem \#5: A plastic sheet with a thickness of 3cm and k=2W/m.K is to be bonded to a 6cm Aluminum plate. The glue that will accomplish this task should be held at 350K to be efficient and the heat to accomplish this bonding is provided by a radiation source (e.g., UV light). The convective heat transfer of the air outside these surfaces us 10W/m2K and the surrounding air is at 20C. What is the required heat flux if it is applied to the surface of a) plastic or b) the aluminum