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A tube of length L = 3 meters is open at both ends. I vibrate the...

A tube of length L = 3 meters is open at both ends. I vibrate the air at 150 Hz and notice that I obtain a standing wave of the second overtone (i.e., the standing wave has two nodes). The speed of sound in the air must be (pick the answer closest to the true value):

  1. 300 m/s
  2. 120 m/s
  3. 350 m/s
  4. 400 m/s
  5. 450 m/s
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Answer #1

XXX Secono avertone LE 3 meter 3 : 2 Z 3 с 2. aяves (2) 2L 3 а уЕ тS0x2 * 3 3 V (э) иda Juost

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