A. Let a, represent the initial angular velocity of a wheel. In each case described below, torpov determine the magnitude of the change in angular velocity Ao in terms of . 1. The wheel is made to spin faster, so that eventually, a fixed point on the wheel is going around twice as many times each second. (The axis of rotation is fixed.) sbatingam odi ogru 8 2. The wheel is made to spin at the same rate but in the opposite direction.

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.