1. The problem statement, all variables and given/known data Three identical rods are welded together to form a Y-shaped figure. The cross-sectional area of each rod is A, and they have length L and thermal conductivity k. View Figure The free end of rod 1 is maintained at T_1 and the free ends of rods 2 and 3 are maintained at a lower temperature T_0. You may assume that there is no heat loss from the surfaces of the rods. Part A What is T_j, the temperature of the junction point? Express your answer in terms of T_1 and T_0. Part B What is the heat current H_1 in rod 1? Express the heat current in terms of any or all of k, L, A, and the temperatures T_1 and T_0.