SOLUTION: how do you rearrange the following equation to solve for r? Fg= G (Ma*Mb/r^2) also 4.9=(6.67*10^-11(5.89*10^240/r^2))

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Question 241074: how do you rearrange the following equation to solve for r?
Fg= G (Ma*Mb/r^2)
also
4.9=(6.67*10^-11(5.89*10^240/r^2))
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how do you rearrange the following equation to solve for r?
Fg= G (Ma*Mb/r^2)
Multiply by r^2
Fg*r^2= G*Ma*Mb
Divide by Fg
r^2 = G*Ma*Mb/Fg
r+=+sqrt%28G%2AMa%2AMb%2FFg%29
----------------------------
4.9=(6.67*10^-11(5.89*10^240/r^2))
4.9 = 6.67*5.89E229/r^2 (240 is a large exponent)
r^2 = (6.67*5.89/4.9)E229
r^2 = 8.0176E229 = 80.176E228
r = 8.954E114