If the frequency of a tuning fork is \( 400 \mathrm{~Hz} \), find how far the sound travels when...

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If the frequency of a tuning fork is \( 400 \mathrm{~Hz} \), find how far the sound travels when the
(W) fork makes 30 vibrations, given that the -velocity of sound in air is \( 320 \mathrm{~m} / \mathrm{s} \).
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