A solid cylindrical rod of length 0.1 m and diameter 25 mm is well insulated on its side, while its end faces are maintained at temperatures of 100 and 0 degrees C. what is the rate of heat transfer through the rod if it is conducted from a) pure copper b) aluminum allot 2024-T6 c) AISI 302 stainless steel d)silicon nitride e) wood (oak) f) magnesia 85% and g) pyrex.