Any cause that can accelerate, decelerate, divert or deform an object

Which material produces static charge when rubbed?

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

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