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A steel pipe has a length of 10.7 metres at 20C. What is the increase in its length if the steam at 420C runs through this pipe? The coefficient of expansion for steel is 11x10-6 m/ 0Cm.
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In raising a 6400-N piano with a pulley system, the movers note that, for every 3.0 m of rope pulled down, the piano rises 0.26 m Ideally, find the force required to lift the piano. Express your answer to two significant ...
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Question: Point charges q1 = +2.00 (mu)C and q2 = -2.00 (mu)C are placed at adjacent corners of a square for which the length of each side is 1.00 cm. Point a is at the center of the square, and point b is at the empty c ...
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