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

تمرين 23

A copper teakettle has a circular bottom 30.0 cm in diameter that has a uniform thickness of 2.50 mm. It sits on a burner whose temperature is 150 °C. (a) If the teakettle is full of boiling water, what is the rate of heat conduction through its bottom (b) Assuming that the heat from the burner is the only heat input, how much water is boiled away in 5.0 min Is your answer unreasonably large If yes, explain why.