A cylindrical copper rod of length 2.2 m and a cross-sectional area 5.0cm^2 is insulated to prevent heat loss through its surface. The ends are maintained at a temperature diffrence of 100 C by having one end in a ice mixture and the other in a mixture of boiling water and steam.
(a) At what rate is energy conducted along the rod?
(b) At what rate does the ice melt at the cold end?