College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 87

The lowest natural temperature ever recorded on the Earth was at Vostok, a Russian Antarctic station, when a temperature of 89.4 °C ( 129 °F) was recorded on July 21, 1983. A typical person has a body temperature of 37.0 °C, skin tissue 0.0250 m thick, and a total skin surface area of 1.50 m 2. (a) What would be the rate of heat loss of a naked human (b) What would be the rate of heat loss of a human wearing a 0.100-m-thick goose down jacket and pants capable of covering the whole body