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Math Help - Solving a work problem with integration

  1. #1
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    Solving a work problem with integration

    Does anyone know how to solve this problem?

    A trough 3 meters long has a semicircular cross-section of radius 3 meters. If the trough is full of oil (density 800 kg/m^3), find the work done in pumping the oil out over the top.
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  2. #2
    MHF Contributor Calculus26's Avatar
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