A pipe with OD 6.03cm, ID 4.93cm carries steam at 250deg C with h = 200 W/m^2.K The pipe is covered with 2.5cm of magnesia (85%) insulation followed by 2.5cm of polystyrene (k = .025 W/m.K The outer surface is exposed to air at T = 20 deg C with h = 10 W/m^.K What is the rate of heat loss per meter of pipe?