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8) (23.5 points total) Zorch, an archenemy of Superman, decides to slow Earth's rotational period from 24.0 hours to 28.0 hours. He will accomplish this by exerting an opposing force at and parallel to Earth's equator. 8a) (5.5 points) Convert the two rotational periods (1 rotation every 24.0 hours and 1 rotation every 28.0 hours) into angular velocities (measured in rad/s). 8b) (5 points) Calculate the Earth's moment of inertia. You can assume that it is a perfect sphere and its mass is distributed uniformly throughout its volume