5.3 Text Problem 6.29 in 7th Ed and 6.25 in 8th Ed. Experimental measurements of the convection heat transfer coefficient for a square bar in cross flow yielded the following values: h = 50 W/m.K when Vi = 20 m/s ha = 40 W/m.K when V2 = 15 m/s Assume that the functional form of the Nusselt number is Nu = C Re" Pr", where C, m, and n are constants. (a) What will be the convection heat transfer coefficient for a similar bar with L = 1 m when V = 15 m/s? (b) What will be the convection heat transfer coefficient for a similar bar with L = 1 m when V = 30 m/s? (c) Would your results be the same if the side of the bar, rather than its diagonal, were used as the char- acteristic length? = L = 0.5 m Air V Hint: use the data to estimate m