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Mathematics, 16.09.2019 21:30 cjdieball2106

John played a note on his tuba that vibrated the air 120 times per
second. if he played the note for 4 seconds, how many times did
the air vibrate?

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Answers: 2

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John played a note on his tuba that vibrated the air 120 times per
second. if he played the no...
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