Could you tell?
I have a final in two hours. I think I've stopped studying for it already (I'm looking over my notes for Saturday's exam though). Why have I stopped? Well basically I'm making two kinds of mistakes. One is chosing the wrong formula from the 10 that the book offers, all of which *should* be applicable in the situation (at least the solutions don't say why they picked the one they did, and the constraints given on the use of the one I used doesn't exclude the situation I used it for). The other is not noticing the units. Oh. that was Watts per metre squared, not Watts? And that sort of thing is NOT going to get any better by me doing more problems, at least not now. It would get better if I did more problems a week ago, but I think that at this point my best bet is staying somewhat unsure, so that I pay enough attention.
Wish me luck