Question: 1 6 ) A uniform disk with a radius R and mass M is rotating about its center with an angular velocity of ! 0

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A uniform disk with a radius R and mass M is rotating about its center with an angular velocity of

! 0 .

A second disk with half the radius and the same mass is dropped from rest onto the rotating disk so that their centers are at the same position. After a short time they rotate together. What is the new angular velocity of the combined system?

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