PHYSICS: Happy Friday! Here’s the lecture on the properties of waves. Problems are pretty simple for you, I think. Do you remember the main formula from chemistry? Speed = wavelength x frequency (c = λf).

And hey, did you figure out that problem from the end of class yet? It’s not that difficult, really. 🙂 Bring me the answer on Monday, and let’s take waves a step further then. Have a great weekend!