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October 20, 2014

October 20, 2014

Posted by **Anonymous** on Thursday, December 13, 2012 at 9:30pm.

mass of 49.4 kg. Tom and Sally are standing

17.4 m apart on a massless dance ﬂoor. Sally

looks up and she sees Tom. She feels an

attraction.

If the attraction is gravitation, ﬁnd its magnitude. Assume both can be replaced by

spherical masses and that the gravitational

constant is 6.67259 × 10

−11

N · m2

/kg

2

.

Answer in units of N

- physics -
**Elena**, Friday, December 14, 2012 at 5:48amF =G•m1•m2/R²

the gravitational constant G =6.67•10⁻¹¹ N•m²/kg²,

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