An object with a mass of 100 grams (0.100 kg) is dropped from a certain height and has a velocity of 60 meters/second. if the potential energy of this object is 179.99 joules, how high was the object when it was dropped?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

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.