Air at 1 atm. and 300 k blows across a 100 cm square plate at 30 m/s. heating does not begin until x-50 cm after which the plate surface temperature is maintained at 400k: a) draw the schematic of the system. b) calculate the heat transfer lost by the plate.

Consider a 1.2 meter high and 2 meter wide glass window whose thickness is 6 mm and thermal conductivity is 0.78 w/m °c. the room temperature is maintained at 24 °c, while the outdoor temperature is -5 °c. the convective heat transfer coefficients on the inner and outer surfaces of the window are 10 w/m2 °c and 25 w/m2 °c respectively. (a) draw the thermal resistance network, etermine the steady rate of heat transfer t e glass window (c) determine the temperature of the inner surface of the window