Chapt. 14Gravity123at some fiducial point inside of it (its center of mass usually being the best choice) and itsmass. 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 force8. A fiducial gravitational force is the force between two non-overlapping spherically symmetricobjects each of mass 1 kg with the center-to-center distance one meter. The magnitude of thisforce is:014 qmult 00210 1 3 3 easy math: gravity force calculation9. Using Newton’s gravitation lawvectorF12=−Gm1m2r2ˆr12(G= 6.67428(67)×10−11Nm2/kg2: e.g., NIST constants 2009may05) calculate the magnitudeof the force between two 3 kg objects 3 m apart. The answer is:
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