How is it possible for a wave to travel across a slinky since the slinky is not moving back and forth?

True or false graphs must include scales that increase by the same amount

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.