A thick wall tube of stainless steel (k = 19 W/m*K) with 2-cm inner diameter and 4-cm outer diameter is covered with a 3-cm layer of asbestos insulation (k = 0.2 W/m*K). If the inside-wall temperature of the pipe is maintained at 600 C and the outside of the insulation is maintained at 100 C, calculate the heat loss per meter of length