A 4-mm-diameter and 10-cm-long aluminum fin (k = 237 W/m.° C) is attached to a surface. If the heat transfer coefficient is 12 W/m^2 ·° C, determine the percent error in the rate of heat transfer from the fin when the infinitely long fin assumption is used instead of the adiabatic fin tip assumption. h, T T, k D = 4 cm -L = 10 cm

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