T-B-2: The metallic soleplate of an 1800 W iron has an area of 600 cm2. The existing heat is emitted from the soleplate to the environment and environment with a temperature of 27C. a) Find the heat transfer rate (W/m2) from the metallic base. b) When the radiation is neglected, the convective heat transfer coefficient of the air is 50 W/m2.K. surface temperature of the sole, c) Find the new convective heat transfer coefficient of the air when radiation is included. (=0.75)