Consider the earth as a sphere of uniform density with mass of 5.974 x 10* kg and radius of 6.371 x10 m rotating about an axis through the poles. a) What is the tangential velocity of a point on the surface at the equator? b) What is the centripetal acceleration about its axis? c) What is the tangential acceleration? d) What is its moment of inertia? e) What is its rotational kinetic energy?

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