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Need help on easy questions from phy 105

  1. Jun 3, 2004 #1
    what is the equation for a period on a pendulum? and what is the answer to this:

    Two waves of equal amplitude and wavelength of .8m travel in a string in opposite directions with speeds of 250 m/s. if the string is 2.0 meters long, how many segments of standing waves are set up in the string?

    whats the answer and please give a short explanation.
    I need an answer in the next 15 minutes, i need a miracle!

  2. jcsd
  3. Jun 3, 2004 #2
    Simple Pendulum: [tex] T = 2 \pi \surd({l \over g}) [/tex]
    Last edited: Jun 3, 2004
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