Question: A skier wears a jacket filled with goose down that is 2 0 . 9 mm thick. Another skier wears a wool sweater that is

A skier wears a jacket filled with goose down that is

20.9

mm thick. Another skier wears a wool sweater that is

2.43

mm thick. Both have the same surface area. Assuming the temperature difference between the inner and outer surfaces of each garment is the same, calculate the ratio of heat lost through wool to heat lost through goose down during the same time interval.

A skier wears a jacket filled with goose down

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