A bullet from a policeman's handgun travels at 200 meters per second and has a mass of 0.02 kg. What is the bullet's kinetic energy?

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?