In our examples with CDs (such as Example 8.7), we usually ignored the hole in the cente...

In our examples with CDs (such as Example 8.7), we usually ignored the hole in the center. Calculate the moment of inertia of a CD, including the effect of the hole. For a CD of radius 6.0 cm, estimate the percentage change in the moment of inertia due to a hole of radius 7 mm.

(reference example 8.7)