A back and forth motion causing particles to move close together generates a . Can you please solve this bec I’m well confused

Pest analysis, a framework for understanding different facets of the world in which a business operates, looks particularly at political, social, and technological factors.

Ben is interested in using a source that provides original research, current and developing trends and experts within specific fields. which source should he use?

Blank is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound