In Figure a two identical rectangular rods of metal are welded end to end, with temperature of T1 = 0oC on the left side and a temperature of T2 = 100oC on the right side. In 2.0 min, 10J is conducted at a constant rate from the right side to the left side. How much time would be required to conduct 10J if the rods were welded side to side as in Figureb?

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т. (a) (6)