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March 26, 2017

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calculate the energy consumed by a computer(150 W) that is used for 2.0 hours and a laser(250 W) that is used for 10 min?
Answer is 1.2 Mj

  • physics - ,

    150 * 2*3600 j
    + 250 * 10*60 j
    =1230000 j
    =1.23 Mj

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