You want to calculate the heat loss of a person from the inside of their skin/fat, through their clothes, to the outside. You are given that air is 10C, the temperature of the body is 35C, the thermal conductivity of the fat/skin is 0.3 W/mK with a thickness of 3mm and the clothing layer has a thermal conductivity of 0.014W/mK and a thickness of 4.4mm. The person has a total surface area of 1.8m2 and a height of 1.7m and the emissivity of the outer surface of the snow and wetsuit is 0.95 . Now assume that it is a windy day such that the air velocity is 5m/s. a. Calculate the heat transfer coefficient for free convection. (You will need to guess at the surface temperature) b. Calculate the heat transfer coefficient for forced convection. (You will need to guess at the surface temperature)