Make up to \$500 this semester by taking notes for StudySoup as an Elite Notetaker

# Explain, in terms of the definition of power, why energy

## Problem 19CQ Chapter 7

Physics: Principles with Applications | 6th Edition

• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Physics: Principles with Applications | 6th Edition

4 5 0 287 Reviews
11
0
Problem 19CQ

Explain, in terms of the definition of power, why energy consumption is sometimes listed in kilowatt-hours rather than joules. What is the relationship between these two energy units?

Step-by-Step Solution:

Step-by-step solution 19CQ Step 1 of 3 Power consumption is the rate at which energy is consumed; therefore the energy consumed over time t is, Here is the energy, is the power and is the time. Step 2 of 3 Electricity bills use the unit kilowatt-hours for energy consumed because energy consumption at the kilowatt level for hours is typical, joules (J) is too small to use for everyday electrical consumption. Since,

Step 3 of 3

#### Related chapters

×
Get Full Access to Physics: Principles With Applications - 6th Edition - Chapter 7 - Problem 19cq

Get Full Access to Physics: Principles With Applications - 6th Edition - Chapter 7 - Problem 19cq

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
We're here to help