Whats the phrequency of a pendulum and a balance?

[eosphorus]

i want to build a pendulum in resonace with a balance to see what happens

so anybody knows what's the swinging prequency of a balance depending on his arm and that of a pendulum that i don't remember know

 

[Tide]

The angular frequency of a beam balance is

\omega = \sqrt {\frac {g}{\alpha L}}

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