Integrated Concepts(a) What is the cost of heating a hot tub containing 1500 kg of water from 10.0oC to 40.0oC , assuming 75.0% efficiency to account for heat transfer to the surroundings? The cost of electricity is 9 cents/kW.h .(b) What current was used by the 220-V AC electric heater, if this took 4.00 h?

Integrated Concepts(a) What is the cost of heating a hot tub containing 1500 kg of water from 10.0oC to 40.0oC , assuming 75.0% efficiency to account for heat transfer to the surroundings? The cost of electricity is 9 cents/kW.h .(b) What current was used by the 220-V AC electric heater, if this took 4.00 h?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 68PE: Integrated Concepts (a) What is the cost of heating a hot tub containing 1500 kg of water from...

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