Interactive learningware 13.1 explores the approach taken in problems such as this one. a composite rod is made from stainless steel and iron and has a length of 0.241 m. the cross section of this composite rod is shown in the drawing and consists of a square within a circle. the square cross section of the steel is 3.76 cm on a side. the temperature at one end of the rod is 88.9 °c, while it is 10.2 °c at the other end. assuming that no heat exits through the cylindrical outer surface, find the total amount of heat conducted through the rod in two minutes.