A glider attached to both springs is located between the springs. When the glider is in equilibrium, spring 1 is stretched by extension xi1 to the

A glider attached to both springs is located between the springs. When the glider is in equilibrium, spring 1 is stretched by extension xi1 to the right of its unstretched length, and spring 2 is stretched by xi2 to the left. A horizontal force is then applied to the glider to move it a distance xa to the right from its equilibrium position. What is the work done on the spring due to the application of that force? 9) A tennis ball and a basketball, shown as in the figure, are dropped on the floor together so that the basketball strikes the floor first. Which statement accurately describes what ensues? A. The two balls remain together as they bounce off the floor. B. The tennis ball bounces to a much larger height than the basketball. C. The tennis ball slides off the basketball and strikes the floor separately, and bounces back to lower height than the basketball. D. The tennis ball slides off the basketball and strikes the floor separately, and bounces back to higher height t