Suppose you have two solid bars, both with square cross-sections of 1 cm2. They are both 21 cm long, but one is made of copper and one of iron. You place the two side by side and braze them together, making a composite bar with a cross-section of 2 cm2. If one end of this rod is placed in boiling water and the other end in ice water, how much power (to three significant digits) will be conducted through the rod when it reaches steady state?.