22 A Halloween decoration with a weight of 100 newtons is suspended from a ceiling by two lengths of rope that makes angles for 20° and 50° with the ceiling. a) Show properly scaled vector diagram. Remember that the suspension system is at rest. The forces exerted on the object must be balanced. (For the artists in this class- focus on the vectors, not on the decoration) b) Determine the tension in each of the ropes. Use vector components method.

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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.