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A 4 watt night light is left on for 8 hours each night how much work does it do per night

User Pranee
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1 watt = 1 joule per second

(4 joules/second) x (3600 second/hour) x (8 hour)

= (4 x 3600 x 8) (joule)

= 115,200 joules .
User Dylan Madisetti
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