The energy a sled has when you pull it back up a hill is best described as a.) chemical energy
b.) electromagnetic energy
c.) electrical energy
d.) mechanical energy

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

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.