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Math Help - Urgen Averages help neded

  1. #1
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    Urgen Averages help neded

    Hi all.

    Is there anybody who can help me with this one on my coursework?

    Total time is 14.5 mins

    For 2.5 mins output is 5.22 Watts
    For 12 mins output is 3.03 Watts


    What is the average Watts?
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  2. #2
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    Quote Originally Posted by mabaza View Post
    Hi all.

    Is there anybody who can help me with this one on my coursework?

    Total time is 14.5 mins

    For 2.5 mins output is 5.22 Watts
    For 12 mins output is 3.03 Watts


    What is the average Watts?
    1 Watt = 1 Joule per second .....

    Total energy = (2.5)(60)(5.22) + (12)(60)(3.03) = ........ Joules

    Total time = (2.5 + 12)(60) = ....... seconds.

    Average Watts = (Total energy)/(Total time) = .....
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  3. #3
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    Thanks very much for your help.
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