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Physics114A_L17 - Physics 114C Mechanics Lecture 17(Walker...

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Physics 114C - Mechanics Lecture 17 (Walker: Ch. 7.3-4) Work & Power May 1, 2009 John G. Cramer Professor of Physics B451 PAB [email protected]
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Announcements HW#5 is due at 11:59 PM on Thursday, February 10.  HW#6 is due at 11:59 PM on  Thursday, February 17. As of today 206/208 clickers are registered.  Recent clicker numbers and cumulative scores  as of Friday, January 28 (20 max) are posted on WebAssign.  Check yours. Physics 114A now has a UW GoPost discussion board at:  https://catalyst.uw.edu/gopost/board/jcramer/20670/   We will have Exam 2 on Friday, February 11.  It will cover Chapters 5-8 and will be  similar to Exam 1 in its structure.  There will again be assigned seating.  If you have not  already done so and would like to request a left-handed seat, right-handed aisle seat, or  front row seat, E-mail your request to me ASAP.  Two table seats are also available. The  CLUE people plan a review for 114 Exam 2 on Wednesday, February 9 from 6:30-8:00  PM in Mary Gates Hall 228. February 1, 2011 2/30 Physics 114A - Lecture 15 February 4, 2011 2/23 Lecture 17
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Lecture Schedule (Part 2) We are here. Physics 114A - Introduction to Mechanics Lecture: Professor John G. Cramer Textbook: Physics, Vol. 1 (UW Edition), James S. Walker Week Date L# Lecture Topic Pages Slides Reading HW Due Lab 4 24-Jan-11 10 Newton's Laws 14 29 5-1 to 5-4 1-D Dynamics 25-Jan-11 11 Common Forces 11 31 5-5 to 5-7 27-Jan-11 12 Free Body Diagrams - 24 - HW3 28-Jan-11 13 Friction 9 27 6-1 5 31-Jan-11 14 Strings & Springs 12 26 6-2 to 6-4 Newton's Laws Tension 1-Feb-11 15 Circular Motion 5 30 6-5 3-Feb-11 16 Work & Energy 11 23 7-1 to 7-2 HW4 4-Feb-11 17 Work & Power 7 25 7-3 to 7-4 6 7-Feb-11 18 Potential Energy 10 26 8-1 to 8-2 Work-energy 8-Feb-11 19 Energy Conservation I 16 18 8-3 to 8-5 10-Feb-11 R2 Review & Extension - 44 - HW5 11-Feb-11 E2 EXAM 2 - Chapters 5-8 February 4, 2011 3/23 Physics 114A - Lecture 17
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Work and Area      If the force is constant, we can graphically interpret the  work done ( W = F d ) as the  area of a rectangle   F  tall  and  d  wide: February 4, 2011 4/23 Physics 114A - Lecture 17
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Work Done by a Variable Force
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