Two skaters skate toward each other, each moving at 3.3 m/s. their lines of motion are separated by a perpendicular distance of 1.5 m. just as they pass each other (still 1.5 m apart), they link hands and spin about their common center of mass. what is the rotational speed of the couple about the center of mass? treat each skater as a point particle, each with an inertia of 51 kg.

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.