Solve the following problem:
Q: Approximate the human form as an unclothed vertical cylinder of O.3-m diameter and 1.75-m length with a surface temperature of 30°C.
(a) Calculate the heat loss in a 10-m/s wind at 20°C.
(b) What is the heat loss if the skin is covered with a thin layer of water at 30°C and the relative humidity of the air is 60%?