SX500 NO FURTHER A MYSTERY

Think about the Exclusive circumstance of the good stage demand q with the origin. To compute the likely attributable to q in a length r from your origin relative to some reference of 0 at infinity (recall that we did the same for likely Vitality), Permit (P = r) and (R = infty), with (dvec l = dvec r = hat r dr) and use (vec E = frac kq r^2 hat r