A lot has happened since our last post. We have changed our name from Checkmark Media to Giancoli Answers to be more specific about what this site is about. We've also made each video much larger to make it easier to see the writing, and we've changed from subscriptions by chapter, to full access subscriptions for each edition paid by month, or by year. With one single purchase you now get access to ALL solutions we have available for your chosen edition. Let us know what you think of these changes.
Since our last update we've also added solutions to Chapters 7 and 18, and currently we're working on finishing up Chapter 19. Stay tuned for more great physics solutions!