Test: MCAT Physical

An eight inch long cylinder is composed of two substances: the first four inches are composed of aluminum, and the second four inches are composed of lead. The aluminum region has a mass of 30g and the lead region has a mass of 60g.

1.

Where is the center of mass in the cylinder?

In the center of the cylinder, one inch into the lead side

In the center of the cylinder, right in the middle of the length

On the outside of the cylinder, right in the middle of the length

In the center of the cylinder, one inch into the aluminum side

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