I thought that it would be a good idea to give people who want to, something to think about. So, here are some unusual sets of graphic output to find answers for.
They are all made with the Water Rocket Computer Model and you can download from this site the set of files that will save you from typing in the figures with each problem to get the graph if you want to have a look at it on your own copy of the computer model.
Each problem has a screen shot that you can view full size and the questions. There are also the answers for each question on another page.
You can downlaod the set of files from the Computer Model download page