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Unformatted text preview: Physics 204A THIRD EXAM Chapters 1 - 11 Fall 2005 1 Name:_________________________________________ Solve the following problems in the space provided. Use the back of the page if needed. Each problem is worth 20 points. You must show your work in a logical fashion starting with the correctly applied physical principles. The equations you need are on the equation sheet. Your score will be maximized if your work is easy to follow because partial credit will be awarded. 1. A girl jumps upward from Earth as shown at the right. Consider only the situation while she is at the top of her flight. (a)State the Law of Conservation of Linear Momentum. It can be in your own words. (b)Does the girl, alone as a system, obey the Law of Conservation of Linear Momentum? Explain fully. (c)Does the girl and Earth, together as a system, obey the Law of Conservation of Linear Momentum? Explain. Physics 204A THIRD EXAM Chapters 1 - 11 Fall 2005 2 2. A rude spectator at a hockey game throws an 85.0g coin that skids across the ice. The coin collides 2....
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- Fall '09