The fuel plates in a nuclear reactor are 4 ft long and stacked with a 1/2-in. gap between them. the heat flux along the plate surfaces varies sinusoidally according to the equation where α-250 btwh ft. β-1500 btwh ft, x is the distance from the leading edge of the plates, and l is the total plate length. if air at 120°f, 80 psi, flowing at a mass velocity of 6000ibm/hft2, is used to cool the plates, prepare plots showing a. the heat flux vs. x b. the mean air te 19.5 given the information in problem 19.4, determine the total heat transferred for a stack of plates with a combined surface area of 640 ft, each plate being 4 ft wide.