Hon Chemistry 11-19-12 Applications of Radioactivity

HON CHEMISTRY: Wow! Did you realize radiation was everywhere? It turns out there are some pretty useful applications of radioactivity! Let’s finish talking about that, as well as fission and fusion tomorrow, okay?

Don’t forget to add the half-life problems from the end of the chapter (#26 – 29 I think) to your homework for tonight. Oh, help session needed anytime soon?

Photo by Steve Jabo, NMNH.

Physics 11-19-12 Intro to Work

PHYSICS: Funny thing about words, all this work you thought you’d been doing, was it? Work, I mean? Great intro to chapter 5! Ben, I think you almost did move the lab station! 🙂 And I think you’ll all do great with the work problems, just remember everything from the last chapter and multiply by d!

BTW – I double checked and you don’t need the little boat cutouts for the thLAB on Efficiency that’s due next Monday, but you do need a super bouncy ball and different types of marbles. Do you need any of these? I’ve got some you can borrow – I think.

flickr photo by *hb19