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Home Q & A Board Science-Related Homework Help Physics
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einsteindude einsteindude
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9 years ago
At 10 cents per kilowatt-hour, how much does it cost to run a 100 watt lightbulb for 200 hours every month?       

A) 20 cents per month
B) $20 per month
C) $2 per month
D) impossible to determine because we don't know the voltage
E) impossible to determine because we don't know the power
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
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mel!811mel!811
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