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How long was a 50 W lightbulb left on for if 500,002 J were burned?
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How long was a 50 W lightbulb left on for if 500,002 J were burned?

User Reetika
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1 Answer

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" 50 W " means " 50 Watts " or " 50 Joules per second ".

(500,002 J) / (50 J/sec) = 10,000.04 seconds

(That's 2 hours 46 minutes 40.04 seconds.)

User Diogo Antunes
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