A steel bar 10.0 cm long is welded end to end to a copper bar 20.0 cm long. Each

A steel bar 10.0 cm long is welded end to end to a copper bar 20.0 cm long. Each bar has a square cross section, 2.00 cm on a side. The free end of the steel bar is kept at 100C by placing it in contact with steam, and the free end of the copper bar is kept at 0C by placing it in contact with ice. Both bars are perfectly insulated on their sides. Find the steady-state temperature at the junction of the two bars and the total rate of heat flow through the bars.