What kind of energy is involved in hearing and vision

An object has a weight of 500 on earth what is the mass of this object

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Often called simply "velocity," this is the velocity of an object at a particular moment in time.