Universal Gravation Problem -experts needed haha

[physicsbhelp]

[SOLVED] Universal Gravation Problem --experts needed haha

Never Mind.

 

[Galileo's Ghost]

Looks like you have the right equation and all the needed information. Check to make sure you are entering everything into your calculator properly. Simply solve the equation for R.

 

[Dick]

The formula is right, the answer is way, way off. How did you get it?

 

[Dick]

The G in the universal law of gravitation is not the same as g=9.81m/sec which is the acceleration due to gravity at the Earth's surface. It's 6.67*10^(-11)*m^3/(kg*sec^2). Try keeping track of units.

 

[Dick]

Oh, well then what is the G? because i have no clue.

I just edited to quote it. But you could look it up.

 

[Dick]

Righto.

 

[Dick]

24.713 is the answer right?

If you say 24.713m, I'll agree with that. Put units on things. If you'd done that you would have realized 9.8m/sec^2 couldn't be the G you want. Because you wouldn't have gotten an answer in meters.

 

[Dick]

S'ok. Word to the wise.

 

[cristo]

physicsbhelp, please don't delete all your posts after you have received help. It makes the thread totally unreadable, and useless to anyone else!