In Fig. 1 a, four identical rectangular rods of metal are welded end to end, with a temperature of T1 = 5 oC on the left side and a temperature of T1 = 95 oC on the right side. In 3.0 min, 12 J is conducted at a constant rate from the right side to the left side. How much time would be required to conduct 10 J if the rods were welded side to side in shape of a cube as in Fig.1 b?

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In Fig. 1 a, four identical rectangular rods of metal are welded end to end, with a
temperature of T1 = 5 oC on the left side and a temperature of T1 = 95 oC on the
right side. In 3.0 min, 12 J is conducted at a constant rate from the right side to
the left side. How much time would be required to conduct 10 J if the rods were
welded side to side in shape of a cube as in Fig.1 b?

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