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(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

(acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave