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 38 C, and emissivity & = 0.64. Take the surface area of the body to be 1.5 m- A) 30 C D) 18 C G) None of these B) 22 C E) 35.C C) 12 C F) 40 C