Bundle: Physics For Scientists And Engineers With Modern Physics, 10th + Webassign Printed Access Card For Serway/jewett's Physics For Scientists And Engineers, 10th, Multi-term
10th Edition
ISBN: 9781337888516
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 26, Problem 27P
(a)
To determine
The cost of energy of porch light.
(b)
To determine
The cost of making a dark toast.
(c)
To determine
The cost of drying a load of clothes.
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Students have asked these similar questions
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 80.0-W porch light on for 2 weeks while you are on vacation.
$ 3.23
(b) Making a piece of dark toast in 3.00 min with a 860-W toaster.
0.00516
X
Your response is off by a multiple of ten.
(c) Drying a load of clothes in 40.0 min in a 5,800 W dryer.
0.464
X
Your response is off by a multiple of ten.
The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate
the cost that would result from each of the following:
(a) leaving a 80.0 W porch light on for 2 weeks while you are on vacation
$
(b) Making a piece of dark toast in 3.00 min with a 1000 W toaster.
$
(c) drying a load of clothes in 40.0 min in a 5700 W dryer
$
The cost of energy delivered to residences by electrical transmission varies from $0.070/kWh to $0.258/kWh throughout
the United States; $0.110/kWh is the average value.
(a) At this average price, calculate the cost of leaving a 60-W porch light on for two weeks while you are on
vacation?
$4
(b) At this average price, calculate the cost of making a piece of dark toast in 3.00 min with a 990-W toaster?
(c) At this average price, calculate the cost of drying a load of clothes in 40.0 min in a 5.80 x 10 -W dryer?
624
%24
Chapter 26 Solutions
Bundle: Physics For Scientists And Engineers With Modern Physics, 10th + Webassign Printed Access Card For Serway/jewett's Physics For Scientists And Engineers, 10th, Multi-term
Ch. 26.1 - Consider positive and negative charges of equal...Ch. 26.2 - Prob. 26.2QQCh. 26.2 - Prob. 26.3QQCh. 26.4 - When does an incandescent lightbulb carry more...Ch. 26 - Prob. 1PCh. 26 - A small sphere that carries a charge q is whirled...Ch. 26 - Prob. 3PCh. 26 - Prob. 4PCh. 26 - Prob. 5PCh. 26 - Figure P26.6 represents a section of a conductor...
Ch. 26 - The quantity of charge q (in coulombs) that has...Ch. 26 - Prob. 8PCh. 26 - Prob. 9PCh. 26 - A wire 50.0 m long and 2.00 mm in diameter is...Ch. 26 - Prob. 11PCh. 26 - Prob. 12PCh. 26 - Prob. 13PCh. 26 - Prob. 14PCh. 26 - Prob. 15PCh. 26 - Prob. 16PCh. 26 - Prob. 17PCh. 26 - Prob. 18PCh. 26 - An aluminum wire with a diameter of 0.100 mm has a...Ch. 26 - Prob. 20PCh. 26 - At what temperature will aluminum have a...Ch. 26 - You are working in a laboratory that studies the...Ch. 26 - Assume that global lightning on the Earth...Ch. 26 - The Van de Graaff generator, diagrammed in Figure...Ch. 26 - Prob. 25PCh. 26 - The potential difference across a resting neuron...Ch. 26 - Prob. 27PCh. 26 - Prob. 28PCh. 26 - Prob. 29PCh. 26 - Prob. 30PCh. 26 - Prob. 31PCh. 26 - Prob. 32PCh. 26 - Prob. 33PCh. 26 - Prob. 34APCh. 26 - Prob. 35APCh. 26 - You are working with an oceanographer who is...Ch. 26 - A charge Q is placed on a capacitor of capacitance...Ch. 26 - Prob. 38APCh. 26 - Prob. 39APCh. 26 - Prob. 40APCh. 26 - Review. An office worker uses an immersion heater...Ch. 26 - Prob. 42APCh. 26 - A close analogy exists between the flow of energy...Ch. 26 - The dielectric material between the plates of a...Ch. 26 - Review. A parallel-plate capacitor consists of...Ch. 26 - Prob. 46APCh. 26 - Prob. 47APCh. 26 - Prob. 48CPCh. 26 - Prob. 49CPCh. 26 - Material with uniform resistivity is formed into...
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- A 300 W driveway light is left on for 24 hours. How much does the energy cost if the power company’s rate is 50.0 cents per kWh?arrow_forwardIn a household, a business is run for an average of 6 hours per day. The total power consumed by a computer and its printer is 205 watts. In addition, a 90-W light bulb runs during the same 6 hours. If their utility charges 11.75 cents per kWh, how much do the owners pay every 30-days?arrow_forwardIn a household, a business is run for an average of 6 hours per day. The total power consumed by a computer and its printer is 220 watts. In addition, a 50-W light bulb runs during the same 6 hours. If their utility charges 11.75 cents per kWh, how much do the owners pay every 30-days? The amount paid by the owner is $arrow_forward
- The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following. (a) Leaving a 40.0-W porch light on for 2 weeks while you are on vacation.$ (b) Making a piece of dark toast in 3.00 min with a 890-W toaster. (Give your answer to at least three decimal places.)¢(c) Drying a load of clothes in 40.0 min in a 5,100 W dryer. (Give your answer to at least one decimal place.)¢arrow_forwardAt roughly $0.10/kWh, what does it cost to leave a 25-W porch light on day and night for a year? Hint: 1kWh = 3.6 × 10°Joules $29.80 $54.30 $6833.33 $16.90arrow_forwardThe average television set is said to be on 6 hours a day. a) Calculate the yearly cost (total cost) of electricity, in billions of dollars, required to operate 100 million TVs, assuming their power consumption averages 130 W and the cost of electricity averages 13.5 cents/kW⋅h.arrow_forward
- 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 60.0-W porch light on for 2 weeks while you are on vacation. $ ________ (b) Making a piece of dark toast in 3.00 min with a 870-W toaster. (Give your answer to at least three decimal places.) __________ ¢ (c) Drying a load of clothes in 40.0 min in a 5,300 W dryer. (Give your answer to at least one decimal place.) __________¢arrow_forwardA 400-W computer (including the monitor) is turned on for 8.0 hours per day. If electricity costs 10¢ per kWh, how much does it cost to run the computer annually for a typical 365-day year? $1200 none of the given choices $15 $150 $120arrow_forwardAn 11.0-W energy-efficient fluorescent lightbulb is designed to produce the same illumination as a conventional 40.0-W incandescent lightbulb. Assuming a cost of $0.116/kWh for energy from the electric company, how much money does the user of the energy-efficient bulb save during 200 h of use? (Give your answer to the nearest cent.)arrow_forward
- The people who live in suburbs use simultaneously: 2Hp aircon for 3 hrs. 900 watts toaster for 9 mins., a 1.50kW heater for 8 hrs., a 3.4kW broiler for 20 mins. a four 100 watts lamps for 5 hrs. If the total cost she has to pay is $2.50, What is the unit cost per Kw-hr?arrow_forwardHow much energy is consumed by a 1.1 kW hair dryer used for 12 min? How much energy is consumed by a 12 W night light left on for 21 hr?arrow_forwardCompact fluorescent bulbs are much more efficient at producing light than are ordinary incandescent bulbs. They initially cost much more, but last far longer and use much less electricity. According to one study of these bulbs, a compact bulb that produces as much light as a 100 W incandescent bulb uses only 23.0 W of power. The compact bulb lasts 10000 hours, on average, and costs $12.00, whereas the incandescent bulb costs only $0.73, but lasts just 750 hours. The study assumed that electricity costs $0.070 per kilowatt hour and that the bulbs were on for 4.0 hours per day. (A) what is the total cost (including the price of the bulbs) th run and incandescent bulbs for 3.0 years? (B) what is the total cost (including the price of the bulbs) to run compact fluorescent bulbs for 3.0 years? (C) how much do you save over 3.0 years if you use a compact fluorescent bulb instead of an incandescent bulb? (D) what is the resistance of a "100 W" fluorescent bulb? (Remember, it actually uses…arrow_forward
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