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The pressure variation in a sound wave i...

The pressure variation in a sound wave in air is given by
`Deltap = 12 sin (8.18X - 2700 t + pi//4) N//m^(2)`
find the displacement amplitude. Density of air `= 1.29 kg//m^(3)`.

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`1.04 xx 10^(-5) m`
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