Mechanical Waves

Class today was only 33 minutes long, so we did a short introduction to mechanical waves:

Here is a website with animations of the different kids of mechanical waves:

Acoustics and Vibrations Animations, Daniel A. Russell, Pennsylvania State University

No homework tonight.

I will be gone tomorrow, so the sub plan is for you to read and take notes on p. 458-460 then work on homework problems. You may want to do the reading and taking notes tonight so you don't have to bring your book tomorrow.