Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so, it is no surprise that such clothing has largely replaced thick and heavy old-fashioned coats. consider a jacket made up of six layers of 0.1 mm thick synthetic fabric (k = 0.026w/m. k) with 1.2 mm thick air space (k = 0.026 w/m. k) between the fabric layers. assuming the inner surface temperature of the jacket to be 25˚c and the surface area to be 1.25 m2 , determine the heat loss through the jacket when the temperature of the outdoors is -5˚c and the heat transfer co-efficient of outer surface is 25 w/m2 .k. what would be the thickness of a wool fabric (k = 0.035w/m. k) if the person has to achieve the same level of thermal comfort wearing a thick wool coat instead of a jacket. (30 points)