Part A Compact 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 the average, and costs $12.00, whereas the incandescent bulb costs only $0.74, but lasts just 750 hours The study assumed that electricity cost $0.090 per kilowatt-hour and that the bulbs were on for 4.0 h per day. What is the total cost (including the price of the bulbs) to run incandescent bulbs for 3.0 years? Express your answer in dollars, ? Submit Request Answer Part B What is the total cost (including the price of the bulbs) to run compact fluorescent bulbs for 3.0 years? Express your answer in dollars. ΑΣφ ? Submit Request Answer Part C How much do you save over 3.0 years if you use a compact fluorescent bulb instead of an incandescent bulb? Express your answer in dollars. ?

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 25.68
18 of
I Peview Con
Compact 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 the average, and costs
$12.00, whereas the incandescent bulb costs only
$0.74, but lasts just 750 hours. The study assumed
that electricity cost $0.090 per kilowatt-hour and
that the bulbs were on for 4.0h per day
Part A
What is the total cost (including the price of the bulbs) to run incandescent bulbs for 3.0 years?
Express your answer in dollars,
nνα ΑΣφ
?
2$
Submit
Request Answer
Part B
What is the total cost (including the price of the bulbs) to run compact fluorescent bulbs for 3.0 years?
Express your answer in dollars.
ν ΑΣφ
Submit
Request Answer
Part C
How much do you save over 3.0 years if you use a compact fluorescent bulb instead of an incandescent bulb?
Express your answer in dollars.
2$
Submit
Request Answer
Part D
What is the resistance of a "100 W" fluorescent bulb? (Remember, it actually uses only 23 W of power and operates
across 120 V)
Express your answer in ohms.
AE4
R-
Submit
Reguest Answer
Next>
Provido Feedback
Transcribed Image Text:Problem 25.68 18 of I Peview Con Compact 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 the average, and costs $12.00, whereas the incandescent bulb costs only $0.74, but lasts just 750 hours. The study assumed that electricity cost $0.090 per kilowatt-hour and that the bulbs were on for 4.0h per day Part A What is the total cost (including the price of the bulbs) to run incandescent bulbs for 3.0 years? Express your answer in dollars, nνα ΑΣφ ? 2$ Submit Request Answer Part B What is the total cost (including the price of the bulbs) to run compact fluorescent bulbs for 3.0 years? Express your answer in dollars. ν ΑΣφ Submit Request Answer Part C How much do you save over 3.0 years if you use a compact fluorescent bulb instead of an incandescent bulb? Express your answer in dollars. 2$ Submit Request Answer Part D What is the resistance of a "100 W" fluorescent bulb? (Remember, it actually uses only 23 W of power and operates across 120 V) Express your answer in ohms. AE4 R- Submit Reguest Answer Next> Provido Feedback
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