Identify the theory that can be used to explain each phenomenon. diffraction: interference: reflection: refraction:in order from above and on edg. -wave theory- diffraction -wave theory- interference -both particle and wave theory- reflection -both particle and wave theory- refraction

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.