10) An athlete is standing unclothed in a locker room whose dark walls are at some temperature. The rate of heat flow by radiation is 150 W. Estimate the temperature of the walls assuming a skin temperature of 38C, and emissivity &=0.64. Take the surface area of the body to be 1.5 m. tys=0 A) 30C G) None of these B) 22C D) 18C E) 35C F) 40C C) 12C