A solid ball of mass 0.4 kg and radius 1.5 cm is released from the top of an inclined slope with a height of 1.2 meters. At the bottom it collides with a spring with spring constant k = 1200 N/m. Assume no friction at any point. A. Calculate the moment of inertia of the ball. B. Determine the amount of energy the ball has at the highest point in the incline. C. Calculate the velocity and angular velocity of the ball immediately at the bottom of the incline slope. (Use the conservation of energy) (Remember v = wr) D. Once the ball collides with the spring and comes to a complete stop, how much does the ball compress the spring?