HELP.....ASAP physics lab! When a mass of 750g is attached to a spring with constant 24N/m, the max stretch recorded when dropped is .65m. How do I determine the eleastic energy, gravitational potential energy, kinetic energy, the total energy at the top middle and bottem positions of the mass that was dropped from the unstreteched spring. Also, what happens to energy that seems to dissappear with each subsequent bounce of a vibrating mass-spring system? THANK YOU!