A 100-W Light Bulb Is Left on for 20

question 58

Multiple Choice

A 100-W light bulb is left on for 20.0 hours.Over this period of time,how much energy did the bulb use?

• A) 1000 J
• B) 7.2 MJ
• C) 3,600,000 J
• D) 1.34 hp

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