This website provides a public database of supplemental problems and solutions written for the Matter & Interactions textbook by Ruth Chabay and Bruce Sherwood. This book emphasizes a modern perspective on the calculus-based introductory physics curriculum taken by engineering and science students. The problems are organized by sections in the text. Each problem can be viewed separately, with solutions, or downloaded as a pdf.

The site includes videos showing solutions to many of the problems. These can be followed with RSS or as podcasts from iTunes. Instructors are encouraged to submit their own problems and solutions to the web site. Problems should be submitted in LaTex.