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  • 16-12-2022
  • Physics
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A certain high-efficiency LED light bulb has a power output of 7.20 W. That is, 7.20 J of electric energy is converted to electromagnetic (light) energy and radiated away every second. How much energy is output by the lightbulb if it is left on for a total time of 7.00 hours? From this, what do we find the total energy output in joules to be?

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