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Opera singer and crystal goblet

  1. Oct 7, 2007 #1
    Standing-wave vibrations are set up in a crys-
    tal goblet with four nodes and four antinodes
    equally spaced around the 10:6 cm circumfer-
    ence of its rim.
    If transverse waves move around the glass
    at 900 m=s, an opera singer would have to
    produce a high harmonic with what frequency
    in order to shatter the glass with a resonant
    vibration? Answer in units of kHz.

    I'm stuck on this problem, please help.
  2. jcsd
  3. Oct 7, 2007 #2
    /delete please

    wrong forum
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