Frequency
a. the number of waves that pass a point in one second
b. the height of a wave
c. the distance from crest to crest of a wave
d. how fast a wave is traveling

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)