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An 11.0-W energy-efficient fluorescent lightbulb is designed to produce the same illumination as a conventional 40.0-W...

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Physics

An 11.0-W energy-efficient fluorescent lightbulb is designed toproduce the same illumination as a conventional 40.0-W incandescentlightbulb. Assuming a cost of $0.116/kWh for energy from theelectric company, how much money does the user of theenergy-efficient bulb save during 140 h of use? (Give your answerto the nearest cent.)
$

Answer & Explanation Solved by verified expert
4.0 Ratings (524 Votes)
Rate of electricity R 0116 kWhTime period the bulb runs for T 140 hoursPower used by an incandescent lightbulb P1 40 W 004 kWEnergy    See Answer
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