When plane waves cross a boundary at a non-zero angle to the boundary, each wavefront experiences a change in and .

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

What is created when solids, liquids, an gases mix with one another

The pressure proportional to the area a- inversely b- directly c- increase d-decrease