The mass of Pluto is 1.25 1022 kg and its radius is 1.14 106 m. ...

[futuristic]

The mass of Pluto is 1.25  1022 kg and its radius is 1.14  106 m. What is the value of g at the surface of Pluto? G = 6.67 x 10-11 Nm2/kg2.
 
  A) 0.642 m/s2
  B) 9.81 m/s2
  C) 1.62 m/s2
  D) 3.72 m/s2
  E) 1.40 m/s2

Question 2

The mass of the Moon is 7.4  1022 kg and its mean radius is 1.75  103 km. What is the acceleration due to gravity at the surface of the Moon?
 
  A) 2.8  106 m/s2
  B) 9.8 m/s2
  C) 4.9 m/s2
  D) 1.6 m/s2
  E) 0.80 m/s2

[kishoreddi]

Answer to Question 1

A

Answer to Question 2

D

[futuristic]

Gracias!

[yeungji]

Excellent