#6 (Procedure) 5.0 kg of water at 80C and 2.0 kg of water at 20C are in different containers and are separated by two joined metal plates, one made of steel and one of copper. The two plates are rectangular and measure 0.50 m high by 0.40 m long. The thickness of the plates is 2.0 cm. Assuming thermal conduction, calculate the rate (dT/dt) at which the temperature of each container is changing as a function of time at that instant. These cups are not the same