I'm most of the way through the physics homework I have due next week. The only problem I'm hung up on is a proof of an equation for finding the acceleration of gravity from an experiment in which a ball is thrown upward in a tube that's been evacuated of air. It passes two marks, separated by a known distance, on the way up and down, and the times it takes to pass the lower mark twice and the upper mark twice are recorded. I believe that the information to find the acceleration of gravity is in there, but I'm having a hell of a time figuring out how to express it without needing to know the initial velocity, or maybe the height at which the ball stops moving before traveling down again.
Differential equations, though, are another level of hard. I'm probably going to spend tomorrow afternoon in the library again, where I can borrow the text book and read and re-read the chapters and example problems. I should get that book next week. I guess if I had to choose one book not to have a copy of, it would be physics - everything so far is a review of high school physics, although the class does move faster, and I can photocopy the homework assignments from a classmate's book until I get mine.
The whole unemployment thing continues. It's as confusing as differential equations, but the money at stake is in a short-term rather than long-term time frame.