264_Physics ProblemsTechnical Physics

264_Physics ProblemsTechnical Physics - 266 P9.39 Linear...

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266 Linear Momentum and Collisions P9.39 Take x -axis starting from the oxygen nucleus and pointing toward the middle of the V . Then y CM = 0 and x mx m ii i CM == x x CM CM u 0.100 nm u 0.100 nm u u nm from the oxygen nucleus = ++ = 0 1 008 53 0 1 008 53 0 15 999 1 008 1 008 000673 .c o s . o s . ... . af FIG. P9.39 *P9.40 Let the x axis start at the Earth’s center and point toward the Moon. x mm CM kg 0 kg m kg m from the Earth’s center = + + = ×+ × × × 11 22 12 24 22 8 24 6 5 98 10 7 36 10 3 84 10 605 10 467 10 .. . . . ej The center of mass is within the Earth, which has radius 637 10 6 . × m. P9.41 Let A 1 represent the area of the bottom row of squares, A 2 the middle square, and
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