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hi please tell me fast?

is the formula for standing waves on super imposing -2a cos(wt) sin (kx) ?

1 Answer

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  • Ian H
    Lv 7
    5 years ago
    Favorite Answer

    Regular sea waves bouncing off a harbour wall might approximate the situation.

    Considering two such sine waves of equal amplitude and wavelength but oposite direction, then,

    Asin(kx – wt) + Asin(kx + wt) = 2Asin(kx)cos(wt)

    See this link

    http://www.acs.psu.edu/drussell/Demos/superpositio...

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