Answer
$\omega=4s^{-1}$
Work Step by Step
Comparing the given equation $y=(5.0cm)sin[1.0-(4.0s^{-1})t]$ to $y(x,t)=y_msin(kx-\omega t)$, we obtain:
$\omega t=(4)t$
$\omega =(4)$
$\omega=4s^{-1}$
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