A hot brass plate is having its upper surface cooled by an impinging jet of air at a temperature of 15°C and convection heat transfer coefficient of 220 (W)/(m²)K. The 10-cm-thick brass plate is maintained at a constant temperature of 60°C. Calculate the heat transfer rate per unit width of the plate.
A) 33.0 W/m
B) 44.0 W/m
C) 55.0 W/m
D) 66.0 W/m