A copper rod, an aluminum rod, and a brass rod, each of 6.00 m length and 1.00 cm diameter, are placed end to end with the aluminum rod between the other two. The free end of the cooper rod is maintained at water's boiling point, and the free end of the brass rod is maintained at water's freezing point. What is the steady-state-temperature of (a) the cooper-aluminum junction and (b) the alunimum-brass junction?