Current Attempt in Progress A 1.40 kg snowball is shot upward at an angle of 29.0 to the horizontal with an initial speed of 23.0 m/s. (a) What is its initial kinetic energy? (b) By how much does the gravitational potential energy of the snowball-Earth system change as the snowball moves from the launch point to the point of maximum height? (c) What is that maximum height? (a) Number Units (b) Number i Units V (c) Number i Units V