Two metal rods—one lead, the other copper—are connected in series, as shown in. These are...

Two metal rods—one lead, the other copper—are connected in series, as shown in. These are the same two rods that were connected in parallel in Example. Note that the rod is 0.525 m in length and has a square cross section 1.50 cm on a side. The temperature at the lead end of the rods is 2.00 °C; the temperature at the copper end is 106 °C. (a) The average temperature of the two ends is 54.0 °C. Is the temperature in the middle, at the lead-copper interface, greater than, less than, or equal to 54.0 °C? Explain, (b) Given that the heat flow through the of these rods in 1.00 s is 1.41 J, find the temperature at the lead-copper interface.

FIGURE