A room has a radiating wall panel fitted along the entire length of one wall. The panel extends from the ground to a height of 1 m and has a surface temperature of 60°C and an emissivity of 0.9. The...

A room has a radiating wall panel fitted along the entire length of one wall. The panel extends from the ground to a height of 1 m and has a surface temperature of 60°C and an emissivity of 0.9. The room measures 4 m
 4 m
 2 m high, and the walls are effectively black with a temperature of 15°C. Calculate the heat radiated to the floor and the ceiling.