SOLUTION: A sphere with a diameter 1 meter has a mass of 120 kilograms. What is the mass, in kilograms, of a sphere of the same kind of material that has a diameter of 2 meters?

Algebra ->  Bodies-in-space -> SOLUTION: A sphere with a diameter 1 meter has a mass of 120 kilograms. What is the mass, in kilograms, of a sphere of the same kind of material that has a diameter of 2 meters?       Log On


   

Question 208717: A sphere with a diameter 1 meter has a mass of 120 kilograms. What is the mass, in kilograms, of a sphere of the same kind of material that has a diameter of 2 meters?
Found 2 solutions by ankor@dixie-net.com, Alan3354:
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A sphere with a diameter 1 meter has a mass of 120 kilograms.
What is the mass, in kilograms, of a sphere of the same kind of material that
has a diameter of 2 meters?
:
Using the volumes of two sphere, we can see:
%28%284%2F3%29%2Api%2A1%5E3%29%2F%28%284%2F3%29%2Api%2A2%5E3%29 = 1%2F8
Therefore
8 * 120 = 960 kilgrams

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Ankor used radius when it said diameter.
Since it's a ratio, his answer is correct.