Recent content by physics12

Homework Statement What is the flux of r(vector) though a spherical surface of radius a? Homework Equations to solve this use spherical coordinates. The Attempt at a Solution ∫a . ds

can this be done in cartesian coordinates?

how do you prove that?

Homework Statement gradient(1/r) = r(hat) / r^2Homework Equations r = (x-x')i + (y-y')j + (z-z')k [Mentor Note -- Poster was reminded to always show effort on schoolwork questions]