Question

The mass density of a 115 cm long, 0.724 mm diameter string is 1.85 x 10-4...

The mass density of a 115 cm long, 0.724 mm diameter string is 1.85 x 10-4 kg/m.

  1. Determine the tension needed in the string to have the same fundamental frequency as E (330 Hz).
  2. If the diameter of the string were decreased to 0.699 mm, but the mass density remains the same, will the tension increase, decrease, or remain the same to produce the same E fundamental frequency? Explain.
  3. What is the length of a closed pipe necessary to have the same E fundamental frequency on a day when vsound = 345 m/s.
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Answer #1

For fundamental mode & Vibraton FLER À =2 L = 2X1•15 m => A=2430 m redo speed of wave, vc VE = TE VEU on, To (fabu 5) To $30x

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