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Physics 1 Problem Solutions 130

Physics 1 Problem Solutions 130 - 126 Chapt 14 Gravity a 0...

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Unformatted text preview: 126 Chapt. 14 Gravity a) 0. b) vectorg = − GMr 2 ˆ r . c) vectorg = − GM r 2 ˆ r . d) vectorg = − GM r ˆ r . e) infinite. 014 qmult 00600 1 4 5 easy deducto-memory: Kepler’s 1st law 25. According to Kepler’s 1st law, the orbits of two gravitationally bound celestial bodies are: a) ovals with the center of mass of the system at a point that is a focus for each oval. b) squares. c) triangles. d) cymbals. e) ellipses with the center of mass of the system at a point that is a focus for each ellipse. 014 qmult 00640 2 1 2 moderate memory: orbital angular momentum 26. The angular momentum of an orbiting body in a central force system with respect to the center of force is: a) proportional to radial distance. b) constant. c) inversely proportional to radial distance. d) proportional to the inverse square of radial distance. e) sinusoidal. 014 qmult 00680 1 5 1 easy thinking: short derivation of orbital speed 27. The centripetal force requirement for uniform circular motion is F c...
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