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5. A 2.5kg sphere with a radius of 35cm rotates on an axis through its center. A point on the edge of the
sphere is measured to have a tangential speed of 10m/s. (a) What is the rotation rate of the sphere? (b)
What is the rotational kinetic energy of the sphere? If the center of the sphere moves with a translational
speed of 3m/s, what is the total energy of the sphere?
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