The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following. (a) Leaving a 40.0-W porch light on for 2 weeks while you are on vacation. $ 1.613 (b) Making a piece of dark toast in 3.00 min with a 980-W toaster. (Give your answer to at least three decimal places.) 5.880e-3 Your response is off by a multiple of ten.e (c) Drying a load of clothes in 40.0 min in a 4,800 W dryer. (Give your answer to at least one decimal place.) 0.384 Your response is off by a multiple of ten.e
The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following. (a) Leaving a 40.0-W porch light on for 2 weeks while you are on vacation. $ 1.613 (b) Making a piece of dark toast in 3.00 min with a 980-W toaster. (Give your answer to at least three decimal places.) 5.880e-3 Your response is off by a multiple of ten.e (c) Drying a load of clothes in 40.0 min in a 4,800 W dryer. (Give your answer to at least one decimal place.) 0.384 Your response is off by a multiple of ten.e
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter22: Electric Current
Section: Chapter Questions
Problem 93A
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Question
![The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following.
(a) Leaving a 40.0-W porch light on for 2 weeks while you are on vacation.
$ 1.613
(b) Making a piece of dark toast in 3.00 min with a 980-W toaster. (Give your answer to at least three decimal places.)
5.880e-3
Your response is off by a multiple of ten.¢
(c) Drying a load of clothes in 40.0 min in a 4,800 W dryer. (Give your answer to at least one decimal place.)
0.384
Your response is off by a multiple of ten.¢
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Transcribed Image Text:The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following.
(a) Leaving a 40.0-W porch light on for 2 weeks while you are on vacation.
$ 1.613
(b) Making a piece of dark toast in 3.00 min with a 980-W toaster. (Give your answer to at least three decimal places.)
5.880e-3
Your response is off by a multiple of ten.¢
(c) Drying a load of clothes in 40.0 min in a 4,800 W dryer. (Give your answer to at least one decimal place.)
0.384
Your response is off by a multiple of ten.¢
Need Help?
Read It
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