Item 10 10 of 10 I Review A nonuniform, horizontal bar of mass m is supported by two massless wires against gravity. The left wire makes an angle ø1 with the horizontal, and the right wire makes an angle 2. The bar has length L. (Figure 1) Find the position of the center of mass of the bar, x, measured from the bar's left end. Express the center of mass in terms of L, ø1, and $2. Note that any trig function entered in your answer must be followed by an argument in parentheses. • View Available Hint(s) Figure 1 of 1 > L x = tan p, cot p,+1 Check that any empty variable superscripts/subscripts in your answer are filled, with subscripts directly following the variable. No credit lost. Try again. -L-

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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.