devinposton626 devinposton626

06-12-2016
Physics

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How much power does a toaster have if it does 21,000 joules of work in 30 seconds?

Respuesta :

07-12-2016

Power = (work done) / (time to do the work)

   = (21,000 Joules) / (30 seconds)

   = (21,000 / 30) joule/sec

   =    700 watts

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