1. The problem statement, all variables and given/known data http://books.google.com/books?id=oy...re in contact with hot and cold walls&f=false the problem is number 1.55 2. Relevant equations No equations 3. The attempt at a solution Well I know that if it's in equilibrium that means the temperature of the rod should stop fluctuating. But I don't understand questions a. and exactly how to do it.