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Math Help - work with conical tank

  1. #1
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    work with conical tank

    A tank with a radius of 1 at (0,4) is filled with the 3-meter mark.
    how much work is done (1,000kg/m3 9.8m/s2)

    I got the integral from 0 to 3


    with the radius of x which is x=y/4
    1000x9.8pi [integal0->3](y^2/16)(4-y)dy

    but I'm not getting the right answer, what am I doing wrong?
    Thanks.
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  2. #2
    MHF Contributor arbolis's Avatar
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    Maybe you could try to search on the already asked questions. There is probably one thread that fits more or less your question. Maybe here : http://www.mathhelpforum.com/math-he...-question.html, or here : http://www.mathhelpforum.com/math-he...lume-cone.html. Check out there : http://www.mathhelpforum.com/math-he...earchid=263138. Good luck.
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