Question: Your middle-C tuning fork oscillates at (261.6 mathrm{~Hz}). When you play the middle-C key on your piano together with the tuning fork, you hear 15
Your middle-C tuning fork oscillates at \(261.6 \mathrm{~Hz}\). When you play the middle-C key on your piano together with the tuning fork, you hear 15 beats in \(10 \mathrm{~s}\). What are the possible frequencies emitted by this key?
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