Recent content by elizabeth9681

Thanks so much! I thought I had it backwards but a study partner was adamant that it was E=0 for r<a.

Homework Statement A point charge Q is imbedded at the center of a uniformly charged spherical distribution of charge Q'= -Q with radius 'a'. Write down the volume charge density for this negatively charged sphere. Calculate the electric field and the potential inside, and outside, the atom...

Homework Statement I've been stuck on this problem for a while now, and have tried it several different ways, but with no results. I'm sure I'm missing something obvious or simply approaching it from the wrong direction. The moon subtends an angle of 0.5 degrees at the objective lens of a...