As a sound wave changes from one to another, it will often be refracted. A. frequency B. amplitude C. medium D. wavelength?​

What is the measurement of how fast an object moves relative to a reference point?

How many atoms of nitrogen are in the chemical formula ni(w on

Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe