What is the force exerted by the Sun on the earth? The mass of ...

[sheilaspns]

What is the force exerted by the Sun on the earth? The mass of the Sun is 1.99  1030 kg, the mass of the earth is 5.97  1024 kg, the Earth-Sun distance is 1.50  1011 m, and G = 6.67  10-11 N m2/kg2.
 
  A)
 
  5.28  1033 N
  B)
 
  3.52  1022 N
  C)
 
  8.85  108 N
  D)
 
  7.25  1019 N
  E)
 
  9.32  1011 N

Question 2

The hydrogen atom consists of a proton of mass 1.67  10-27 kg and an orbiting electron of mass 9.11  10-31 kg. In one of its orbits, the electron is 5.3  10-11 m from the proton.
 
  What is the mutual attractive gravitational force between the electron and proton? A)
 
  1.8  10-47 N
  B)
 
  3.6  10-47 N
  C)
 
  5.4  10-47 N
  D)
 
  7.0  10-47 N
  E)
 
  9.3  10-47 N

[kristenb95]

Answer to Question 1

B

Answer to Question 2

B

[sheilaspns]

Excellent

[epscape]

Gracias!