So I'll assume you have your Web browser fired up; now you need to connect to
the CAPA Web server. There's a (hopefully handy) link right to it from my
Physics 121 information page, which (as you realize
by now) you can get to from my home page. Or,
you can just directly enter the URL for the CAPA Web server, which is
"http://phobos.nsrl.rochester.edu/CAPA/class.html".
On that page, you'll see a drop-down list that you should use to choose which
course you're in (You want to choose "phy121s8", which is an
abbreviation for "Physics 121 Spring 1998"). Then enter your 9-digit student
number where it's indicated, and your PIN for this homework set where it's
indicated (your PIN should be masked out and not show up onscreen), and select
the link to start CAPA.
This will take you to a screen offering (very rudimentary) help, a term summary of all the homework sets so far, or for you to "try the current set". If you're ready to answer any of the questions on the current set, select that choice.
The page that shows up next has your progress so far at the top: a status line giving your status for each problem. There's an "N" if you have answered incorrectly so far, a "Y" if you've gotten that problem correct, and a "-" if you haven't answered that problem yet. Also, at the top of the page there are links to go directly to a specific problem number (or you can just page down). The text of each problem is displayed, just as in your printed copy of the homework set; in addition, any figures or diagrams are displayed as inline figures (which will automatically show up in Netscape, but will likely be unavailable in Lynx). There's a line after each problem for you to type the answer, and a link after each problem to "Submit All Answers".
Now, if you like, you can just enter one answer then click on submit; however, if you have a few you'd like to answer, put in whatever answers you want to submit before hitting any one of the "Submit All Answers" buttons. The computer sometimes takes a little bit of time to evaluate the answers and refresh the screen with your status, so combining them like this can be convenient.
I have written up some tips on using the CAPA system to submit homework answers; if you have any further questions after looking at those, let me know.
Oh, and don't forget to quit out of your Web browser after you're done... your answers are not recorded in the system until you select that "Submit All Answers" link, but after you've done that there are no special requirements on exiting -- just quit. And finally, you can freely alternate between using this Web access method and the telnet method.
Good luck!