The pipe is 6 m long with an inner radius of 70 mm, an outer radius of 80 mm, and is made of stainless steel (k = 15 W / [m ° C]). The temperature of the inner surface maintains 170 ° C, and on the outer surface it is 30 ° C. Conditions are constant and there is no heat generation from the pipe, calculate the heat transfer rate that occurs in the pipe wall. = watt

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