If 75.0 L of water at 11.0C enters a hot water heater where it is heated to 57.0C Determine: (a) The mass of the water being heated (ρ = 1000 kg/m3) (b) The amount of energy needed to heat the water. c = 4186 J/(kg c) The cost to heat the water if the heat was provided by electricity at a cost of $0.087 per kWh, off peak cost of electricity in Ontario.

If 75.0 L of water at 11.0C enters a hot water heater where it is heated to 57.0C Determine: (a) The mass of the water being heated (ρ = 1000 kg/m3) (b) The amount of energy needed to heat the water. c = 4186 J/(kg c) The cost to heat the water if the heat was provided by electricity at a cost of $0.087 per kWh, off peak cost of electricity in Ontario.

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 62PE: Integrated Concepts How much time is needed for a surgical cauterizer to raise the temperature of...

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Question

If 75.0 L of water at 11.0C enters a hot water heater where it is heated to 57.0C Determine:

(a) The mass of the water being heated (ρ = 1000 kg/m3)

(b) The amount of energy needed to heat the water. c = 4186 J/(kg

c) The cost to heat the water if the heat was provided by electricity at a cost of $0.087 per kWh, off peak cost of electricity in Ontario.

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