Sound waves and some earthquake waves are waves. ocean, light, and other earthquake waves are waves.

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?

Which of the following are molecules? a. al b. ag c. mgcl2 d. nacl e. c3h8