Suppose 2000 kg cannon fires a 5 kg cannon ball horizontally with a velocity of 300 m/sec. Compute the recoil velocity of the cannon.

How would doubling the made of an object change the objects potential energy

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.