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September 3, 2015

Homework Help: physics

Posted by natali on Monday, October 22, 2007 at 3:14am.

A 100W light bulb is left on for 10hrs. Over this period of time how much energy is used by the bulb?
am i doing this right?

my guess is to convert 100W to kW
and convert 10 hrs to seconds and multiply the 2 together?
which gives 3600J or should i just leave it in watts?

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