A flat plate having an area of 10 m^2 and a temperature of 327 C is exposed to air at 27 C. the convective heat transfer coefficient is 15 W/m^3.C and the emissivity of the plate is 0.80. Calculate:
a. the rate of heat transfer from plate to air by convection in W.
b. the rate of heat transfer from plate to wire by radiation in W, and
c. the percentage of the total heat transfer rate from the plate by radiation.