If experimental results for heat transfer over a flat plate with an extremely rough surface were found to be correlated by an expression of the form nu, 0.04 re09 pr3 hx and re k where nu v the air flowing over the surface has a temperature of 290 k, a velocity of 10 m/s, and the surface has a length of 1 m and a surface area of 1 m2. just enough energy is supplied to maintain the wall's steady state temperature at 310 k (a) determine the average heat transfer coefficient ()over the flat plate surface, in w/m2-k. (15%) (10%) (b) determine the rate of heat must be supplied to the surface for these conditions, in w. hints: air (at tmean = 300 k, 1 atm): v = 15.89 x 106 m2/s; kf= 0.0263 w/m-k; pr 0.7.