A source of longitudinal wave vibrates 320 times in \( 2 \mathrm{~s} \). If the velocity of this...

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A source of longitudinal wave vibrates 320 times in \( 2 \mathrm{~s} \). If the velocity of this wave in the air is \( 240 \mathrm{~m} \mathrm{~s}^{-1} \), find the wavelength of the wave.
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