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Consider a sound wave moving through the air modeled with the equation s(x, t) = 8.00...

Consider a sound wave moving through the air modeled with the equation

s(x, t) = 8.00 nm cos(60.00 m−1x − 14.00 ✕ 103 s−1t).

What is the shortest time (in s) required for an air molecule to move between 4.00 nm and −4.00 nm?

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