Question: A compact disc (CD) is made such that it is 53.0 mm from the edge of the center hole to the edge of the disc.

A compact disc (CD) is made such that it is 53.0 mm from the edge of the center hole to the edge of the disc. Find the radius of the hole if 1.36% of the disc is removed in making the hole. See Fig. 7.23.

Fig. 7.23 53.0 mm 1.36% of orig. disc

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