I don’t get anything that this question is asking me and I need to turn this in quick

Distinguish between a transverse wave and a longitudinal wave.

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction