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205 (F06) Final Exam

# 205 (F06) Final Exam - Physics 205(Fall 2006 Final Exam...

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Physics 205 (Fall 2006) Final Exam (December 12, 2006) Name Section Number: 1 or 2 (circle your section) Signature Print your name LEGIBLY in the space provided above and then sign your name. This portion of the exam consists of three questions, each consisting of several parts of varying difficulty. If you cannot do one part, move on to the next. Partial credit will be given for all parts of this exam. Show your line of reasoning; a final answer in itself is not sufficient. To get full credit, you must show CLEARLY how you obtained your answers. THIS IS A CLOSED BOOK EXAM . DO NOT OPEN THE EXAM BEFORE 6:00 PM COMPLETED EXAMS WILL NOT BE ACCEPTED AFTER 7:55 PM Equations Uniform motion: v = x t = constant Non-uniform motion: v avg = x t v instantaneous = x t ; small t Constant acceleration: a = v t = constant Newton’s Laws: First Law If F net = 0, then a = 0 Second Law r F net = m r a Third Law If #1 exerts a force on #2, then #2 exerts an equal and opposite force on #1. Friction: f s μ s N f k = μ k N Centripetal acceleration: r a cent = v T 2 R Work: Werk = ± F parallel x

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