2. [10pts]Three identical rods are welded together to form a Y-s of each rod is A, and they have length L and thermal conductivity k. The free end of rod 1 is maintained at Ti and the free ends of rods 2 and 3 are maintained at a lower temperature To. There is no heat loss from the surfaces of the rods to their surroundings. haped figure. The cross-sectional area a) [6pts] What is T, the temperature of the junction H2 H point? [4pts] What are the heat currents flowing in these three rods? b)