To help keep his barn warm on cold days, a farmer stores 860 kg of solar-heated water (Lf = 3.35E+5 J/kg) in barrels. For how many hours would a 1.89 kW electric space heater have to operate to provide the same amount of heat as the water does, when it cools from 11.8 to 0∘∘C and completely freezes?

To help keep his barn warm on cold days, a farmer stores 860 kg of solar-heated water (Lf = 3.35E+5 J/kg) in barrels. For how many hours would a 1.89 kW electric space heater have to operate to provide the same amount of heat as the water does, when it cools from 11.8 to 0∘∘C and completely freezes?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter11: Energy In Thermal Processes

Section: Chapter Questions

Problem 18P: In a showdown on the streets of Laredo, the good guy drops a 5.00-g silver bullet at a temperature...

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