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Whats the phrequency of a pendulum and a balance?

  1. Nov 10, 2005 #1
    i want to build a pendulum in resonace with a balance to see what happens

    so anybody knows whats the swinging prequency of a balance depending on his arm and that of a pendulum that i dont remember know
  2. jcsd
  3. Nov 10, 2005 #2


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    The angular frequency of a beam balance is

    [tex]\omega = \sqrt {\frac {g}{\alpha L}}[/tex]

    where L is the distance from the pivot point to the center of mass of the balance and [itex]\alpha[/itex] is a factor related to the moment of inertia of the balance which depends on the particular geometry of your device.
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