Apelican flying drops a fish from a height of 8.1 m.  the fish travels 9.3 m horizontally before it hits the  ground. the pelican’s speed was

The experiments with static charges were done by:

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

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.