Sir Galahad is attacking the castle of Dunkirk. His engineers design a battering ram to break down the front door of this formidable fortress. If the ram’s mass is 1000kg and the maximum velocity it can attain is 5 m/s, what is the maximum kinetic energy that the ram can apply to the door?

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.