# physics

What beat frequencies are possible with tuning forks of frequencies 258, 263, and 267 Hz?

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1. f1 = 263 -258 = 5Hz
f2 = 267 - 258 = 11 hz,
f3 = 267-263 = 4 Hz

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2. it marked me wrong for this

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3. What beat frequencies are possible with tuning forks of frequencies 258, 263, and 267 Hz ?
f1,f2,f3 = 4,5,9 Hz

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