Combination Physical Pendulum

A physical pendulum composed of a uniform rod with a sphere on the end of it is an interesting example of a combination pendulum. By examining its moment of inertia, the period is determined to be For a rod of length L= cm and mass gm attached to a sphere of radius R=cm and mass gm, with an acceleration of gravity g=m/s^2, the period is s compared to a period of s for a simple pendulum for which length equals the distance to the center of mass of the sphere.