Abird flying horizontally accidently at 4.25m/s accidentally drops a rock it was carrying. a short time later, the rocks velocity is 13.0m/s at -70.9. how much time has passed? (unit s)

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

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.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?