Determine the convection heat loss from both the top and the bottom of a flat plate at T_s = 80°C with air in parallel flow at T_∞ = 25°C, u_∞ = 3 m/s. The plate is t = 1 mm thick, L = 25 mm long, and of depth w = 50 mm. Neglect the heat loss from the edges of the plate. Compare the convection heat loss from the plate to the convection heat loss from an L_c = 50-mm-long cylinder of the same volume as that of the plate. The convective conditions associated with the cylinder are the same as those associated with the plate. The convective conditions associated with the cylinder are the same as those associated with the plate.