If the air temperature is the same as the temperature of your skin (about 30 ∘C), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 67.0 kg person’s body produces energy at a rate of about 501 W due to metabolism, 81.0 % of which is converted to heat. [Recall that the normal internal body temperature is 98.6 ∘F and the specific heat capacity of the body is 3480 J/(kg⋅∘C) .]
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If the air temperature is the same as the temperature of your skin (about 30 ∘C), your body cannot g...
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