Recent content by mcano

Teah, i already worked it out, thanks for your help...

Yeah, sorry, i forgot that the field is N/C and the Work should be J/m, so first i need to calculate the force that the field is exerting over the particle right? i know the field would be: E = \frac{\sigma}{\epsilon_{0}} and thus the force would be: F = q {\vect{E}} where q would be the...

So now, i only have to remember that W = -(U_{B}-U_{A}) = -\oint \vec{E}\cdot d\vec{r} Well considering that in this case F = E And use the principle of conservation to make K = U and then i can just get the final speed, and replace in the torricelli's equation and replace right? right?

Homework Statement "Two parallel plates having charges of equal magnitude but opposite sign are separated by 12cm. Each plate has a charge superficial density of 36nC/m2. A proton is launched from the negative plate to the positive plate. What is the minimum speed the proton should be...