A potato launcher uses a spring that can apply a force of 20 newtons to potatoes. A physics student who is studying projectiles launched a 1-kg potato, a 1.5-kg potato, and a 2-kg potato with the launcher. Which had the greatest'acceleration?

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.