Physics 1 Problem Solutions 127

# Physics 1 Problem Solutions 127 - Chapt 14 Gravity 123 at...

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Chapt. 14 Gravity 123 at some fiducial point inside of it (its center of mass usually being the best choice) and its mass. This case follows directly from: a) Newton’s 1st law. b) Newton’s 2nd law. c) Newton’s 3rd law. d) cases 2 and 3. e) case 3. 014 qmult 00200 1 1 1 easy memory: fiducial gravitational force 8. A fiducial gravitational force is the force between two non-overlapping spherically symmetric objects each of mass 1 kg with the center-to-center distance one meter. The magnitude of this force is: 014 qmult 00210 1 3 3 easy math: gravity force calculation 9. Using Newton’s gravitation law vector F 12 = Gm 1 m 2 r 2 ˆ r 12 ( G = 6 . 67428(67) × 10 11 Nm 2 /kg 2 : e.g., NIST constants 2009may05) calculate the magnitude of the force between two 3 kg objects 3 m apart. The answer is:
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