A runner starts from rest, runs for 30 seconds at a uniform acceleration of 2m/s2, how fast are they travelling at the end?

Are aliens real? justify you’re answer.

Will you chech and finish these for me, because i am stumped with them.

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.