Torsion pendulum with removable weights.

Torsion pendulum with removable weights: A 200 gm. disk is suspended on a wire. A twist to the disk sets the disk oscillating. Different masses are added, and the change in the periods of the oscillations are noted. Note: For a large torsion pendulum supported on rods of different diameters, see B+10+5
UCB Index: 
B+10+2
PIRA Index: 
3A10.30
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