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Math Help - Modeling variation

  1. #1
    Newbie
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    Jul 2010
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    23

    Modeling variation

    I have no clue where to begin. Modeling variation-constant-k.png
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  2. #2
    Junior Member
    Joined
    Sep 2010
    Posts
    40
    P1 = k * A * V^3

    where P1 is the initial power for across sectional area of the jet A and velocity and k is the constant of proportionality.

    If area is halved and velocity is doubled, then:

    P2=k * (\frac{1}{2}*A)*(2*V)^3

    P2=4 * k*A*V^3

    P2=4 * P1

    The factor is 4.
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