1. A long pipe is closed at one end and open at the other. If the fundamental frequency of this pipe for sound waves is 240 Hz, what is the length of the pipe? Assume sound velocity is 340 m/s in air.

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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.