Wiley physics 9th edition solution manual. These documents are intended to serve as resources for teachers and learners. They provide notes, examples, problem-solving exercises with solutions and examples of practical activities. How to obtain maximum benefit from these resources These resources contain many problem-solving exercises, quantitative-type questions and qualitative-type questions. The reason for this is that learners can improve their understanding of concepts if given the opportunity to answer thought provoking questions and grapple with problem-solving exercises both in class, as classwork activities and outside the classroom as homework activities.