Lecture13Notes

Lecture13Notes - Physics 121. Tuesday, March 4, 2008. Frank...

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1 Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121. Tuesday, March 4, 2008. Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121. Tuesday, March 4, 2008. Course Information Quiz Topics to be discussed today: Conservation of linear momentum (a brief review) Variable-mass systems (the rocket) One- and two-dimensional collisions (elastic and inelastic) Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121. Tuesday, March 4, 2008. Homework set # 5 is now available on the WEB and will be due next week on Saturday morning, March 8, at 8.30 am. To download the collision videos: OSX: use control-click while pointing to the movie links to download the linked Fle. Windows: use right-click while pointing to the movie links to download the linked Fle. The most effective way to work on the assignment is to tackle 1 - 2 problems a day. Note: clicking on the “Email instructor” button sends an email to the instructor and the TAs.
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2 Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121. Tuesday, March 4, 2008. Exam # 1 will be returned to you during the workshops this week. Any corrections to the grading of the exams can only be made by me. My ofFce hours this week have been moved from Tuesday between 11.30 am and 1.30 pm to Thursday between 11.30 am and 1.30 pm. Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Results Midterm Exam # 1. Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Question 1 - 10, Exam # 1. Only 8 students struggled with Q 10.
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3 Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Question 11, Exam # 1. Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Question 12, Exam # 1. Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Question 13, Exam # 1.
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4 Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Results Midterm Exam # 1. Observations: Circular motion causes many problems. Some students had difFculty getting started - what approach to take. Many students had difFculty with clearly expressing their thought process (we can only award partial credit, if we can follow what you are doing). Recommendations: If your score is below 50% you really need to ask why? Are you giving this course enough time? Do you come to lecture (and stay after the quiz)? Do you go to workshops? Do you work on the homework assignments in an efFcient manner (not waiting until the last moment to start working on it)? Do you look at the homework solutions?
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This note was uploaded on 10/20/2010 for the course PHY PHY 121 taught by Professor Wolfs during the Spring '08 term at Rochester.

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Lecture13Notes - Physics 121. Tuesday, March 4, 2008. Frank...

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