FORCED CONVECTION 1) On a cold winter day, wind at 35 km/h is blowing perpendicular to a 4-m-high and 12-m-long wall of a house. If the are outside is at 5C and the surface temperature of the wall is 12C, find the rate of heat loss from that wall by convection. What would the rate of heat loss be if the velocity of the air was doubled? Note, d = height. (Use Nu = 0.228Re.731Pr1/3)