lecture1

lecture1 - 1 Phys 2101 Gabriela Gonzlez 2 Instructor :...

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Unformatted text preview: 1 Phys 2101 Gabriela Gonzlez 2 Instructor : Gabriela Gonzlez www.phys.lsu.edu/faculty/gonzalez/ gonzalez@lsu.edu Office hours : Mon-Tue 4-5pm, 271-C Nicholson Hall Textbook : Fundamentals of Physics , Halliday, Resnick, and Walker, LSU custom 8th edition (or regular textbook, 8 th or 9 th ed.) Course website : www.phys.lsu.edu/classes/fall2010/phys2101/ Our sections website : www.phys.lsu.edu/faculty/gonzalez/Teaching/Phys2101/ will have lecture slides, grades for our section, etc. 2 3 www.ligo.org LIGO Livingston Observatory EinsteinsMessengers.org WileyPLUS online homework: you can login using your paws email xxxNN@lsu.edu as both username and password. If you have not received an email, please register yourself for our section in http://edugen.wiley.com/edugen/class/cls189381/ using your paws email xxxNN@lsu.edu as username. First homework assignment posted (Chapters 2-4). Homework due date is Monday 9pm (every week). On Thursdays, there will be a quiz on homework completed (first quiz on Sept 2). 4 3 There will be three 1-hour exams during the semester: Tuesdays September 7, October 12, and November 9, at 6pm and a 2-hour final exam on December 9, 7:30am First review exam on September 7 is on Ch 1-7 (material you should know already); it will only have multiple choice questions. Your final grade will be based on 550 total points; HW 50 pts (grade computed at 90% of the total amount of points) Quiz 50 pts (lowest 2 dropped NO make-ups) Review exam 50 pts. Two regular exams 100 pts. each Final Exam 200 pts. 5 A: 90-100% B: 80-90% C: 60-80% D: 50-60% F: 0-50% 6 4 7 A vector is represented by an arrow in space, with a length (magnitude) and direction (arrow pointing). To describe a vector mathematically, we need a coordinate system (x,y,z or east,north and up). A vector has three components: k A j A i A A z y x + + = The magnitude of the vector is A=(A x 2 + A y 2 + A z 2 ) In two dimensions, ( ) j i A j A i A A y x sin cos + = + = 8 We can multiply vectors to get a scalar or another vector with magnitude...
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lecture1 - 1 Phys 2101 Gabriela Gonzlez 2 Instructor :...

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