How does the strong nuclear force compare with the electrostatic force in the nucleus of an atom? a. the strong nuclear force acts over longer distances and is stronger. b. the strong nuclear force acts over shorter distances and is weaker. c. the strong nuclear force is only attractive and acts over shorter distances. d. the strong nuclear force is only repulsive and acts over longer distances.

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.