General Suggestions: Study the material in the text of each chapter before working on the problems. You will be responsible for understanding all concepts introduced and used in the relevant parts of the text, so make sure you can explain in words all the main concepts and laws in each chapter. You can practice with the questions at the end of the chapter.      You can use the files below as a checklist for the equations. You will be responsible for knowing all the equations listed in these pages, so make sure you know how to work problems like the ones solved in class or assigned as homework. Remember that the solution to each problem must start with equations among the ones listed here, and you must always explain why each equation you use applies to the problem.