In Newton's law of universal gravitation, F = Gm1m2/r2 for ...

[Mr.Thesaxman]

In Newton's law of universal gravitation, F = Gm1m2/r2 for uniform objects, the quantity r is______________.
 Fill in the blank(s) with correct word

Question 2

Which pair are isomers?
 a. CH3 CH2 CH(NH2) CH3 and CH3 CH(NH2) CH2 CH3
  b. CH3CH(Cl)CH3 and CH3CH2CH(Cl)CH3
  c. (CH3)3 N and CH3CH2CH2NH2
  d. CH3 (CH2)2 CH3 and CH3 CH2CH(CH3)2
  e. CH3CH2CH(Cl)CH3 and CH3 CH(NH2) CH2 CH3

[kkenney]

Answer to Question 1

the distance between the centers of m1 and m2

Answer to Question 2

c

[Mr.Thesaxman]

TYSM

[Joy Chen]

Wow, this really help