If the cone of a loudspeaker moves sinusoidally at 1.6 kHz with an amplitude of 4.5 μm, then: A) what is the cone's maximum speed? B) What is the cone's maximum acceleration?

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?