lemon1
Member
- Joined
- Dec 15, 2011
- Messages
- 71
- Gender
- Female
- HSC
- 2012
Hello guys, i'm getting really stressed out about this. Could someone please explain what i have to do here! I have no-one to help me especially that my teach is, well, lets not go there..
I see three formulas here:
Ep = -G mMe/r where M = the mass of the earth
F = G m1m2/r^2
Ep = G m1m2/r
My question is, what is going on, why is there 3 formulas here, what is the difference between them, and which do i use and when.
Sorry for the stupid question, i'm currently spamming my head with other subjects i am starting to ware out -_-
thankyou! <3![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I see three formulas here:
Ep = -G mMe/r where M = the mass of the earth
F = G m1m2/r^2
![](/proxy.php?image=http%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fen%2Fmath%2Ff%2F5%2Fd%2Ff5d889f32d6794e1bc2ed394e9688c76.png&hash=ce0b97ef4d97c9882ddd6e47d8efab70)
My question is, what is going on, why is there 3 formulas here, what is the difference between them, and which do i use and when.
Sorry for the stupid question, i'm currently spamming my head with other subjects i am starting to ware out -_-
thankyou! <3