7) A soundwave in an unknown material has the displacement form wave function of s(x,t) = (28 nm) sin [(2.31 rad/m) x + (2760 rad/s) t + 0.95 rad]. Find the velocity of the wave.
7) A soundwave in an unknown material has the displacement form wave function of s(x,t) = (28 nm) sin [(2.31 rad/m) x + (2760 rad/s) t + 0.95 rad]. Find the velocity of the wave.
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