A railroad car of mass 12000kg is traveling at a speed of
A railroad car of mass 12,000kg is traveling at a speed of 6.0 m/s when it collies with an identical car at rest. Thte two cars look together. What is their common speed after the collision?
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a railroad car of mass 12000kg is traveling at a speed of 60 ms when it collies with an identical car at rest thte two
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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