5. A skier wearing a fully-body ski suit of surface area 1.8 m2 is losing heat by convective and radiation processes off the surface of the ski suit at a rate of 95 W. Given that the suit is filled with goose down 15 mm thick with a thermal conductivity of 0.025 Wm−1K−1
, determine the temperature difference between the inner and outer surfaces of the ski suit.
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