Natwerk Designs

help any mathematician?

A high-altitude climber is planning an ascent of Everest with new high-tech equipment. One of the innovations is a nanotechnology tent, which loses almost no energy until the temperature difference reaches 41° Fahrenheit. The climber's body puts out 55 watts while sleeping and on Everest one watt will heat ten cubic feet of air by 14° Fahrenheit per hour. If the volume of air inside the tent is 30 cubic feet, how long will it take the air inside the tent to go from Everest's nighttime temperature of zero to 41° Fahrenheit? Please round your answer to the nearest integer number of minutes now how many minutes?

Public Comments

1. 14*55/3 = 256.667°/hour 41/256.667 = .1597 hours .1597*60 = 9.58 minutes 10 minutes