Electromagnetic Waves: This type of wave requires no medium (substance) to travel through.
Answer:
plateau, mountains, hills, plains
Okay, hun. Velocity is a vector quantity that measures displacement over a period of time. Velocity = Speed/Time (v=s/t). Hope this helped you. I took physics over 4 years ago. I'm more of a biology/chemistry person. (I major in those)
Answer:
low risk for tissue damage
uses radio waves
the last three are not correct
:)
