If the Earth had four times its present mass, what would be its ...

[lracut11]

If the Earth had four times its present mass, what would be its new period of revolution around the sun, compared to its present orbital period?
 
  A) two times as much
  B) one-fourth as much
  C) four times as much
  D) one-half as much
  E) the same

Question 2

A quark can have a charge of
 
  A) -3/2 e.
  B) -e/2.
  C) -1/3 e.
  D) -e/4.
  E) -3/4 e.

[daiying98]

Answer to Question 1

E

Answer to Question 2

C

[lracut11]

Gracias!

[billybob123]

Wow, this really help