Question tiime
help me plz

What object a collides with object b and bounces back its final momentum is?

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.

What’s #16 asking me and how do i solve it?