Question D1: The geometry of an electrical component can be approximated by the geometry shown in the figure below. The entire component is made of pure Copper (p=8933 kg/m, C = 385 J/kg-K, k= 401 W/m-K). The temperature of the component is 150C when it is exposed to a convective environment (h-5 W/m-K and T-20C). (a) Calculate the Biot Number. Can you use the Lump System Approximation for this problem? (b) Calculate the temperature of the component after 10 minutes. 10 mm 10 mm 5 mm 5 mm 10 mm