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Lecture2 - Thursday 4:41 PM 2008 Aug 20 Page 1 2008 Aug 20...

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Thursday,January10,2008 4:41PM 2008 Aug 20 Page 1
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2008 Aug 20 Page 3
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Q1.2.a: Moving objects left the traces shown at left. The dots were laid down at equal time intervals. Which objects did NOT interact with another object somewhere? 1) A 2) B 3) C 4) D 5) A and D 6) A and B 7) A, B, and D 2008 Aug 20 Page 7
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2008 Aug 20 Page 9
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A bee flies in a straight line at constant speed. At 15 s after 9 AM, the bee's position is < 2, 4, 0> m. At 15.5 s after 9 AM, the bee's position is < 3, 3.5, 0> m. What is the average velocity of the bee? 1) < 6, 7, 0 > m/s 2) < .193, .225, 0 > m/s 3) 2.236 m/s 4) < 0.500, -0.250, 0 > m/s 5) < 2.000, -1.000, 0 > m/s
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