Can Anyone Clarify These Physics Formulas?

[angelzery]

kE=gzE=mv²/2, pE=mgh, F=GM m/r² and F=kqı, q2/d²

Anyone knows or familiar about this formula?
Do you know how to proof this formula??

Thank you^^

p/s: For not to make anyone confuse, this is not my homework :)

 

[Doc Al]

Looks like you have several formulas listed: Kinetic energy (what's gzE?), potential energy, Newton's law of gravity, and Coulomb's law. Do you have a specific question about any of those?

 

[angelzery]

No , there is no specific questions. What you just need is to proof this formula.

Original Q:
kE=gzE=mv²/2, pE=mgh, General Gravitiy??(is there any of this?) F=GM m/r² and F=kqı, q2/d²
Proof this formula. (@@)

In my opinions,
kE=gzE=mv²/2, pE=mgh, ( proof that these equations is equals to each other) by using this F=GM m/r² and F=kqı, q2/d² (i guess) I am not sure@@

 

[tuananh3ap]

you are true
but i think Newton's lawF=ma and F=Gm_1m_2/R^2 => that formula
formula F=Kq^2/R^2 was proofed by Coulomb by assay

 

[cristo]

No , there is no specific questions. What you just need is to proof this formula.

But as the Doc says, you have written down several, different equations: it is not one formula that can be proven.

you are true

 

[angelzery]

hmmmmmm.. i will try to study back the question again. And see if they really listed which is which^^.

But, if you all can give some more clues, it will help alot.

Thank you again.