An object with a mass of 5kg is moving with an initial velocity of 20m/s. the object accelerates at a rate of 15m/s/s for 8s. what is the net force on the ball during acceleration?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.