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9. An efficient LED light bulb uses energy at a rate of 7 watts or 7 J/second. What total amount of electrical energy is used if the light is on for 2 hours?
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9. An efficient LED light bulb uses energy at a rate of 7 watts or 7 J/second. What

total amount of electrical energy is used if the light is on for 2 hours?

User MegaMilivoje
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Answer: 50,400 J

Step-by-step explanation:

User Jeanneth
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