The Enclosed Mass M(<r)represents ALL of the Mass Inside the Radius

question 4

Multiple Choice

The enclosed mass M(<r) represents ALL of the mass inside the radius r. If the enclosed mass M(<r) increases out to larger radii, where is the mass?

• A)distributed like a doughnut, with a hole in the center
• B)concentrated in the center
• C)spread out over a large range of radii

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