Suppose i have a spherical insulating shell with inner radius r and outer radius r. the shell has a uniformly distributed charge of +q. what is the charge density on my shell? 3q / 4pi (r^3) 3q / 4 pi (r^3 - r^3) 3q / 4 pi (r^3 - r^3) 3q / 4 pi (r^3) [5 points] suppose i have a conducting sphere of radius r. i place a net charge of +q on the sphere. what is the charge density inside the sphere? zero

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.