How much energy in Joules is used by a 100 W light bulb in 2 hours?(adsbygoogle = window.adsbygoogle || []).push({});

[tex]W=\frac{J}{s}[/tex]

[tex]100 W=\frac{x_{j}}{7200_s}[/tex]

[tex]720000=Joules[/tex]

My teacher said I probably got the right answer but I did the wrong work. I think I did so too. Can some1 help me out?

Thanks

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# Homework Help: Energy question

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