Recent content by EucharisCriss

No, I mean I know Coulomb's law, but the four pi seems to come out of nowhere when you consider that Gauss' law: ε0∫E . dA = qenc I mean, Coulomb's law can be derived from this by considering a point charge with a spherical gaussian surface centered on the particle. ε0∫E . dA = qenc...

so, hey...I'm pretty new to these forums and just needed help understanding a textbook that I'm reading. I'll give you all the background, but I'm not sure if it is necessary. They begin by considering a heavy particle of mass M and velocity v passing through a material with an atomic...