A certain internal combustion engine is air cooled and has a cylinder constructedof cast iron where k=35btu/hrftR. The fins on the cylinder have a length of 5/8 in and a thickness of 1/8 in. Convectipon coefficient is 12 btu/hrft^2R. Cylinder diameter is 4 in. Calculate heat loss per fin for a base temperature of 450 F and environment temp of 100 F.