Giancoli's
web site. (Giancoli, 5th edition)
Practice problems, MCAT preparation and lots more good stuff!
Excellent
Example
problems from U. Illinois, that walk you through the steps nicely!
For more " microwave oven tricks you do not want to try at home",
(with some brief but decent explanations, and quicktime videos,)
check out
http://home.earthlink.net/~marutgers/fun/microwave/microwave.html
(The videos are typically a couple of MBytes, so you'll want a
decent web connection to watch them)
Concerned about the effects of EM fields on your health? I found what
looks to be a good objective discussion
here , I'd be interested in your opinion.
Giancoli's
web site. (Giancoli, 5th edition)