Suppose a ball of mass 0.2kg strikes a free-floating uniform rod (of mass 0.4kg and length 1.2m) a distance of 0.3m from its center of mass at a right angle with initial speed 14 m/s. The ball ricochets off the rod, with final velocity pointing in the opposite direction of its initial velocity, and the rod begins to move and rotate. What is the final speed of the ball, the final speed of the center of mass of the rod, and the final angular velocity of the rod?

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !