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15.   When a tuning fork vibrates over an open pipe and the air in the pipe starts to vibrate, the vibrations in the tube are caused by     A. beats.B. resonance.C. harmonics.D. reinforcement. 
When a tuning fork vibrates over an open pipe and the air in the pipe starts to vibrate, the vibrations in the tube are caused by resonance.
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Asked 1/9/2014 12:37:52 PM
Updated 127 days ago|3/16/2018 1:58:03 PM
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When a tuning fork vibrates over an open pipe and the air in the pipe starts to vibrate, the vibrations in the tube are caused by resonance.
Added 127 days ago|3/16/2018 1:58:03 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/16/2018 2:08:31 PM]
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