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A simple harmonic progressive wave is gi...

A simple harmonic progressive wave is given by `y=Asin(omegat-kx)`. What is (i) the particle velocity at a point x and time t (ii) the wave speed ?

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(i) particle velocity, `(dy)/(dt)=omegaAcos(omegat-kx)` (ii) Wave speed, `v=omega/k`
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