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A piano 10.11

  1. Jun 2, 2006 #1
    A piano wire (Y=2.0*10^10 N/m^2) has a radius of 0.80 mm and a length of 0.76 m. One end of the wire is wrapped around a tuning peg whose radius is 1.8 mm. The other end is fixed in place. Initially, there is no tension in the wire. Find the tension when the peg is turned through 2 revolutions.
  2. jcsd
  3. Jun 2, 2006 #2


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