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Unformatted text preview: least paraphrase each law. 3. Determine (a)the acceleration of the moon in its 27.4 day orbit around Earth and (b)the force that Earth exerts on the moon. Physics 204A SECOND EXAM Chapters 1  7 Fall 2005 3 4. A woman at the airport pulls her 20.0kg suitcase, initially at rest, with a force of 60.0N at an angle of 60.0˚ above horizontal for a distance of 2.00m. The frictional force on the suitcase is 20.0N. Find (a)the work done by each force on the suitcase and (b)the speed of the suitcase at the end of the two meters. 5. In 1940, Emanuel Zacchini set the record for distance by a “human cannonball” at 53.0m. His mass was 65.0kg and his initial speed was 24.0m/s. He was launched at 30.0˚ above horizontal. Find his (a)initial kinetic energy, (b)speed at the top of his flight, (c)kinetic energy at the top of his flight, and (d)maximum height above the ground. You may assume that air resistance is negligible. 60˚...
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 Fall '09
 Kagan
 Force, Work, Exam Chapters, nearly circular orbit, 100N board, nearly constant speed

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