Over a flat portion of the salt lake bed in Utah, the wind can blow at a relatively steady velocity of 9.6 m/s. The flat portion has a length of 118 m, and the air temperature is 20 °C. During the summer the lake bed can reach a temperature of 60 °C. Ignoring natural convection, compute the average heat flux over the flat portion of the lake bed. What would be the energy flux (J/m2) if the conditions are held steady over a 3.8-hour period? Table of thermal properties of air at 1 atm.