TR A ring of inner radius R, and outer radius R, carries a unifom surfa ce charge density of tes electric potential at point P on the central axis of the ring at distance x from the center of the ring is given by 2.nk, olPR-R What is the electric potential when NR, and R, ? Hint: T-14 for u1

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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.