Pushing on the pump of a bottle of hand washing solution compresses a small spring which obeys hooke's law. if the potential energy of the spring is 0.0030 j when the spring is compressed 0.55 cm, determine the following.

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

Aparticle moves in a circle 1.50 m in radius . through what angle in radians does it rotate if it moves through an arc length of 2.50m? what is the angle in degrees?

Ivana walks 2km north then turns around and walks 3km south