- #1
Winzer
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Homework Statement
It is known that the electric force of repulsion between two protons is much stronger than their gravitational attraction. For two protons a distance R apart, calculate the ratio of the magnitude of the repulsion to that of the attraction.
Homework Equations
[tex] F_{g}=\frac{Gm_{1}m_{2}}{r^2}[/tex]
[tex] F_{e}=\frac{Kq_{1}q_{2}}{r^2}[/tex]
The Attempt at a Solution
So the ratio [tex]\frac{F_{e}}{F_{g}}[/tex] =[tex] \frac{Kq^2}{Gm^2}[/tex]
I get 1.3E28 which is wrong. Why?