If your cooler was 50 cm wide, 35 cm long, and 40 cm high manufactured from two layers of 2 mm thick polished aluminum that sandwich a 1/2 inch (1.27 cm) thick layer of rigid urethane foam. Your weather app showed an outside temperature of 35° C and you expertly estimated the sand to be at 55°C as it was too hot to walk barefoot in the sand. Calculate the rate of heat transfer by conduction from the hot sand to the cooler.

If your cooler was 50 cm wide, 35 cm long, and 40 cm high manufactured from two layers of 2 mm thick polished aluminum that sandwich a 1/2 inch (1.27 cm) thick layer of rigid urethane foam. Your weather app showed an outside temperature of 35° C and you expertly estimated the sand to be at 55°C as it was too hot to walk barefoot in the sand. Calculate the rate of heat transfer by conduction from the hot sand to the cooler.