A spherically symmetric planet has four times the Earth's mass ...

[Yi-Chen]

A spherically symmetric planet has four times the Earth's mass and twice its radius. If a jar of peanut butter weighs 12. N on the surface of the Earth, how much would it weigh on the surface of this planet?
 
  A) 18 N
  B) 12 N
  C) 30 N
  D) 6 N
  E) 24 N

Question 2

How many mass extinctions have occurred over the last 500 million years?
 
  A) 5
  B) 1
  C) 4
  D) 3

[Rilsmarie951]

Answer to Question 1

B

Answer to Question 2

A

[Yi-Chen]

Thanks for the timely response, appreciate it

[bdobbins]

YES! Correct, THANKS for helping me on my review