100 sample documents related to PHYS 2101

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  Lecture41

  LSU PHYS 2101
  

  Lecture 41 Announcements Friday, May 4, 2012 HW 15: OPTIONAL HW on chapters 19 & 20 Optional means it does not contribute to your nal grade at all However, working HW 15 will help you review for the nal exam HW 15 solutions are posted Ofce ho
   
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  Lecture40

  LSU PHYS 2101
  

  Lecture 40 Announcements Wednesday, May 2, 2012 HW 15: OPTIONAL HW on chapters 19 & 20 Optional means it does not contribute to your nal grade at all However, working HW 15 will help you review for the nal exam We will post solutions to HW 15 so
   
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  Lecture39

  LSU PHYS 2101
  

  Lecture 39 Announcements Monday, April 30, 2012 HW 14 Due Tuesday night May 1 HW 15: OPTIONAL HW on chapters 19 & 20 Optional means it does not contribute to your nal grade at all However, working HW 15 will help you review for the nal exam We
   
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  Lecture38

  LSU PHYS 2101
  

  Lecture 38 Announcements Friday, April 27, 2012 HW 14 Due Tuesday night May 1 HW 15: OPTIONAL HW (no points!) on chapters 19 & 20 Ofce hours MWF 12:30-1:30 (not Wed. this week!) Final Exam: May 8 5:30-7:30PM Class material TODAY : Finish Chapter 19
   
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  Lecture37

  LSU PHYS 2101
  

  Lecture 37 Announcements Wednesday, April 25, 2012 HW 14 Due Tuesday night May 1 Ofce hours MWF 12:30-1:30 (not Wed. this week!) Exam 4: Average 69 (our section) Final Exam: May 8 5:30-7:30PM Class material TODAY : Exams returned, more Chapter 19, quiz.
   
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  Lecture36

  LSU PHYS 2101
  

  Lecture 36 Announcements Monday, April 23, 2012 HW 13 Due Tuesday night April 24 Ofce hours MWF 12:30-1:30 (not Wed. this week!) Wed: Substitute instructor Final Exam: May 8 5:30-7:30PM Class material TODAY : Finish chapter 18, start chapter 19 Lets rev
   
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  Lecture35

  LSU PHYS 2101
  

  Lecture 35 Announcements Friday, April 20, 2012 HW 13 Due Tuesday night April 24 Ofce hours MWF 12:30-1:30 Final Exam: May 8 5:30-7:30PM Class material TODAY : Finish chapter 18, start chapter 19 Heat and Work Lead shot on the piston to control press
   
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  Lecture34

  LSU PHYS 2101
  

  Lecture 34 Announcements Wednesday, April 18, 2012 HW 13 Due Monday night Ofce hours MWF 12:30-1:30 Final Exam: May 8 5:30-7:30PM Class material TODAY : Chapter 18 Temperature and Heat Heat: The energy transferred between a system and its env
   
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  Lecture33

  LSU PHYS 2101
  

  Lecture 33 Announcements Monday, April 16, 2012 HW 12: Due tonight (solutions posted Tues. Morning) HW 13: Due next Monday night (April 23) Ofce hours MWF 12:30-1:30 Exam 4: April 17 (Tomorrow night!) Exam 4 covers chapters 13-16. Class mat
   
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  Lecture32

  LSU PHYS 2101
  

  Lecture 32 Announcements Wednesday, April 4, 2012 HW11: Tomorrow night (April 3) at 11:59PM HW 12: Due Monday April 16 Ofce hours MWF 12:30-1:30 (not Friday this week) Exam 4: April 17 Exam 4 covers chapters 13-16. Class material TODAY : Finish cha
   
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  Lecture31

  LSU PHYS 2101
  

  Lecture 31 Announcements Monday, April 2, 2012 HW11: Tomorrow night (April 3) at 11:59PM HW 12: Due Monday April 16 Ofce hours MWF 12:30-1:30 Exam 4: April 17 Exam 4 covers chapters 13-16. Class material TODAY : More chapter 16 Longitudinal Waves
   
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  Lecture30

  LSU PHYS 2101
  

  Lecture 30 Announcements Friday, March 30, 2012 HW11: Tuesday night (April 3) at 11:59PM Ofce hours MWF 12:30-1:30 Exam 4: April 17 Exam 4 covers chapters 13-16. Class material TODAY : Start Chapter 16 Chapter 16 - Waves I Waves and parti
   
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  Lecture29

  LSU PHYS 2101
  

  Lecture 29 Announcements Wednesday, March 28, 2012 HW11: Monday night (April 2) at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : We will add 13 points to your exam 3 score to curve it when we compute your nal grade. Your score on Moodle is the ra
   
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  Lecture28

  LSU PHYS 2101
  

  Lecture 28 Announcements Monday, March 26, 2012 HW10: Tuesday night at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Almost there I will post your scores this afternoon Exam 4: April 17 Exam 4 covers chapters 13-16. Class material TODAY : Start Chapte
   
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  Lecture27

  LSU PHYS 2101
  

  Lecture 27 Announcements Friday, March 23, 2012 HW10: Monday night at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Still being graded Exam 4: April 17 Exam 4 covers chapters 13-16. Class material TODAY : Finish chapter 14 Summary of Fl
   
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  Lecture26

  LSU PHYS 2101
  

  Lecture 26 Announcements Wednesday, March 21, 2012 HW10: Monday night at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Last night Exam 4: April 17 Exam 4 covers chapters 13-16. Class material TODAY : Start chapter 14: Fluids What is a ui
   
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  Lecture25

  LSU PHYS 2101
  

  Lecture 25 Announcements Monday, March 19, 2012 HW9 due TONIGHT at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Tuesday (TOMORROW NIGHT), March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class material TODAY : Finis
   
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  Lecture24

  LSU PHYS 2101
  

  Lecture 24 Announcements Friday, March 16, 2012 HW9 due Monday March 19 at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class material TODAY : Finish Chapter 13 The moon
   
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  Lecture23

  LSU PHYS 2101
  

  Lecture 23 Announcements Wednesday, March 14, 2012 HW9 due Monday March 19 at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class material TODAY : Continue Cha
   
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  Lecture20

  LSU PHYS 2101
  

  Lecture 20 Announcements Wed. March 7, 2012 HW8 due Monday March 12 at 11:59PM Ofce hours MWF 12:30-1:30 Exam 2 : Average for our section: 67 Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class m
   
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  Lecture22

  LSU PHYS 2101
  

  Lecture 22 Announcements Monday March 11, 2012 HW8 due Tuesday March 13 at 11:59PM HW9 due Monday March 19 at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class material
   
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  Lecture21

  LSU PHYS 2101
  

  Lecture 21 Announcements Fri. March 9, 2012 HW8 due Monday March 12 at 11:59PM HW9 due Monday March 19 at 11:59PM Ofce hours MWF 12:30-1:30 Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class material TOD
   
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  Lecture19

  LSU PHYS 2101
  

  Lecture 19 Announcements Mon. March 5, 2012 HW7 due Tuesday (tomorrow night) at 11:59PM Ofce hours MWF 12:30-1:30 Exam 2 : Almost ready. Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class materi
   
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  Lecture18

  LSU PHYS 2101
  

  Lecture 18 Announcements Fri. March 2, 2012 HW7 due Tuesday (March 6) at 11:59PM Ofce hours MWF 12:30-1:30 Exam 2 : Still being graded Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) Exam 3 covers chapters 10-12. Class materi
   
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  Lecture17

  LSU PHYS 2101
  

  Lecture 17 Announcements Wed. Feb 29, 2012 HW6 due tonight at 11:59PM On Chapter 10 HW7 due Monday (March 5) at 11:59PM Ofce hours MWF 12:30-1:30 Exam 2 : Last night still being graded Exam 3 : Tuesday March 20 @ 6PM in Lockett 16 (our section) E
   
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  Lecture16

  LSU PHYS 2101
  

  Lecture 16 Announcements Monday Feb 27, 2012 HW6 due Wed. (Feb 29) at 11:59PM On Chapter 10 HW7 due the following Monday Ofce hours MWF 12:30-1:30 Exam 2 : Tuesday Feb 28@ 6PM in Lockett 16 (our section) Tomorrow night! Exam 2 cover
   
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  Lecture15

  LSU PHYS 2101
  

  Lecture 15 Announcements Friday Feb. 24, 2012 HW6 due Wed. (Feb 29) at 11:59PM On Chapter 10 HW7 due the following Monday Ofce hours MWF 12:30-1:30 Exam 2 : Tuesday Feb 28@ 6PM in Lockett 16 (our section) Exam 2 covers chapters 7-9! C
   
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  Lecture14

  LSU PHYS 2101
  

  Lecture 14 Announcements Friday Feb. 17, 2012 HW5 is due next Wed. (Feb 22) at 11:59PM No class Monday or Wed. Mardi Gras holiday Ofce hours Wed. as usual. Exam 2 : Feb 28@ 6PM in Lockett 16 (our section) Exam 2 covers chapters 7-9!
   
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  Lecture13

  LSU PHYS 2101
  

  Lecture 13 Announcements Wednesday Feb. 15, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. HW5 is due next We
   
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  Lecture12

  LSU PHYS 2101
  

  Lecture 12 Announcements Monday Feb. 13, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. HW4 is due toni
   
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  Lecture11

  LSU PHYS 2101
  

  Lecture 11 Announcements Friday Feb. 10, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. HW4 is due Monday at
   
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  Lecture10

  LSU PHYS 2101
  

  Lecture 10 Announcements Wednesday Feb. 8, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. HW4 is due Monday a
   
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  Lecture9

  LSU PHYS 2101
  

  Lecture 9 Announcements Monday Feb. 6, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. HW3 is due Tonight at 1
   
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  Lecture8

  LSU PHYS 2101
  

  Lecture 8 Announcements Friday Feb. 3, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. HW3 is due Monday at 11
   
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  Lecture7

  LSU PHYS 2101
  

  Lecture 7 Announcements Wednesday Feb. 1, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. HW3 is due Mon
   
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  Lecture6

  LSU PHYS 2101
  

  Announcements Monday Jan. 30, 2012 I recommend that you go only if you have a specic question. Sundays from 4:00-5:30 in 218 Coates Otherwise the best way to study is Thursdays from 5:00-6:30 in 218 Coates to work problems. Ofce hours: Wednesday an
   
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  Lecture5

  LSU PHYS 2101
  

  Announcements Fri. Jan. 27, 2012 SI sessions: (I emailed this info to you) Sundays from 4:00-5:30 in 218 Coates Thursdays from 5:00-6:30 in 218 Coates Ofce hours: Wednesday and Thursday from 3:00-4:00 in Allen 039. Exam review: Monday, January
   
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  Lecture4

  LSU PHYS 2101
  

  Announcements Wed. Jan. 25, 2012 HW2 is due Monday Jan 30 at 11:59PM Exam 1 : Jan 31 @ 6PM in Lockett 16 (our section) Any other questions? Class material -> TODAY Chapter 6 Force and Motion 2 Chapter 5 Motion I&II Ne
   
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  Lecture3

  LSU PHYS 2101
  

  Chapter 5 - Force & Motion I Newtons laws: 1. If the net force on an object vanishes, that object will not accelerate. 2. If the net force on an object does not vanish, that object will accelerate. ! ! Net force Fnet = ma acceleration 3. Two objects inte
   
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  Lecture2

  LSU PHYS 2101
  

  Announcements Fri. Jan. 20, 2012 Supplemental instructor Ryan Gibson: Online doodle poll to determine when this session will occur - I will email you the link HW1 is due Monday at 11:59PM Exam 1 : Jan 31 @ 6PM in Lockett 16 (our section) Any other questi
   
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  Lecture1

  LSU PHYS 2101
  

  PHYS - 2101 Physics for Technical Students Spring 2012 Jan 18, 2012 PHYS 2101 Spring 2012 (see syllabus) Prof. Daniel Sheehy sheehy@phys.lsu.edu Ofce 210B Nicholson Class: MWF 11:40am -12:30 pm (note you can go to any other section) MY Ofce Hours
   
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  f5ch04

  LSU PHYS 2101
  

  CHAPTER 4 MOTION IN TWO AND THREE DIMENSIONS 77 CHAPTER 4 Answers to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. (a) (8 i 6 j) m; (b) yes, the xy plane (a) rst; (b) third 1 and 3: ax and ay are both constant and thus a is constant; 2 and 4: ay is constant b
   
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  f5ch05

  LSU PHYS 2101
  

  CHAPTER 5 FORCE AND MOTION I 113 CHAPTER 5 Answers to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. 8. c, d, and e (a) and (b) 2 N, leftward (acceleration is zero in each situation (a) and (b) 1, 4, 3, 2 (a) equal; (b) greater (acceleration is upward, thus ne
   
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  f5ch06

  LSU PHYS 2101
  

  142 CHAPTER 6 FORCE AND MOTION II CHAPTER 6 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) zero (because there is no attempt at sliding); (b) 5 N; (c) no; (d) yes (a) (10 N); (b) decreases; (c) decreases greater (a) a downward, N upward; (b) a and N
   
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  f5ch07

  LSU PHYS 2101
  

  178 CHAPTER 7 KINETIC ENERGY AND WORK CHAPTER 7 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) decrease; (b) same; (c) negative, zero d, c, b, a (a) same; (b) smaller (a) positive; (b) negative; (c) zero zero Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8.
   
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  f5ch08

  LSU PHYS 2101
  

  CHAPTER 8 CONSERV ATION OF ENERGY 199 CHAPTER 8 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. no 3, 1, 2 (a) all tie; (b) all tie (a) CD, AB, BC (zero); (b) positive direction of x 2, 1, 3 decrease (a) seventh excited state, with energy E ; (b) 1:3
   
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  f5ch09

  LSU PHYS 2101
  

  CHAPTER 9 SYSTEMS OF PARTICLES 239 CHAPTER 9 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) origin; (b) fourth quadrant; (c) on y axis below origin; (d) origin; (e) third quadrant; (f) origin (a) to (c) at the center of mass, still at the origin (th
   
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  f5ch10

  LSU PHYS 2101
  

  266 CHAPTER 10 COLLISIONS CHAPTER 10 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. (a) unchanged; (b) unchanged; (c) decreased (a) zero; (b) positive; (c) positive direction of y (a) 4 kgm/s; (b) 8 kgm/s; (c) 3 J (a) 0; (b) 4 kgm/s (a) 10 kgm/s; (b)
   
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  f5ch11

  LSU PHYS 2101
  

  296 CHAPTER 11 ROTATIONAL MOTION CHAPTER 11 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. (b) and (c) (a) and (d) (a) yes; (b) no; (c) yes; (d) yes all tie 1, 2, 4, 3 (a) 1 and 3 tie, 4, then 2 and 5 tie (zero) (a) downward in the gure; (b) less Ans
   
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  f5ch12

  LSU PHYS 2101
  

  326 CHAPTER 12 ROLLING, TORQUE, AND ANGULAR MOMENTUM CHAPTER 12 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. I) (a) same; (b) less less (a) z; (b) +y; (c) x (a) 1 and 3 tie, then 2 and 4 tie, then 5 (zero); (b) 2 and 3 (a) 3, 1, and then 2 and 4 ti
   
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  f5ch13

  LSU PHYS 2101
  

  356 CHAPTER 13 EQUILIBRIUM AND ELASTICITY CHAPTER 13 Answer to Checkpoint Questions 1. 2. 3. 4. 5. c, e, f (a) no; (b) at site of F1 , perpendicular to plane of gure; (c) 45 N (a) at C (to eliminate forces there from a torque equation); (b) plus; (c) minu
   
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  f5ch14

  LSU PHYS 2101
  

  CHAPTER 14 GRAVITATION 381 CHAPTER 14 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. all tie (a) 1, tie of 2 and 4, then 3; (b) line d negative y direction (a) increase; (b) negative (a) 2; (b) 1 (a) path 1 [decreased E (more negative) gives decreased a
   
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  f5ch15

  LSU PHYS 2101
  

  416 CHAPTER 15 FLUIDS CHAPTER 15 Answer to Checkpoint Questions 1. 2. 3. 4. all tie (a) all tie; (b) 0:90 , 0 , 1:10 13 cm3 /s, outward (a) all tie; (b) 1, then 2 and 3 tie, 4; (c) 4, 3, 2, 1 Answer to Questions 1. 2. 3. e, then b and d tie, then a and c
   
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  f5ch16

  LSU PHYS 2101
  

  442 CHAPTER 16 OSCILLATIONS CHAPTER 16 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) xm ; (b) +xm ; (c) 0 a (a) 5 J; (b) 2 J; (c) 5 J all tie (in Eq. 16-32, m is included in I) 1, 2, 3 (the ratio m=b matters; k does not) Answer to Questions 1. 2. 3. 4
   
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  f5ch17

  LSU PHYS 2101
  

  CHAPTER 17 WAVESI 473 CHAPTER 17 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) 2; (b) 3; (c) 1 (a) 2, 3, 1; (b) 3, then 1 and 2 tie a 0:20 and 0:80 tie, then 0:60, 0:45 (a) 1; (b) 3; (c) 2 (a) 75 Hz; (b) 525 Hz Answer to Questions 1. 2. 3. 4. 5. 6.
   
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  f5ch18

  LSU PHYS 2101
  

  498 CHAPTER 18 WAVESII CHAPTER 18 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. beginning to decrease (example: mentally move the curves of Fig. 18-6 rightward past the point at x = 42 m) (a) fully constructive, 0; (b) fully constructive, 4 (a) 1 an
   
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  f5ch19

  LSU PHYS 2101
  

  528 CHAPTER 19 TEMPERATURE, HEAT, AND. CHAPTER 19 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) all tie; (b) 50X, 50Y, 50W (a) 2 and 3 tie, then 1, then 4; (b) 3, 2, then 1 and 4 tie A c and e (a) zero; (b) positive b and d tie, then a, c Answer to
   
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  f5ch20

  LSU PHYS 2101
  

  558 CHAPTER 20 THE KINETIC THEORY OF GASES CHAPTER 20 Answer to Checkpoint Questions 1. 2. 3. 4. 5. all but c (a) all tie; (b) 3, 2, 1 gas A 5 (greatest change in T), then tie of 1, 2, 3, and 4 1, 2, 3 (Q3 = 0, Q2 goes into work W2 , but Q1 goes into grea
   
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  f5ch21

  LSU PHYS 2101
  

  CHAPTER 21 ENTROPY AND THE SECOND LAW . 589 CHAPTER 21 Answer to Checkpoint Questions 1. 2. 3. 4. 5. a, b, c smaller c, b, a a, d, c, b b Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. increase unchanged (a) increase; (b) same b, a, c,
   
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  f5ch22

  LSU PHYS 2101
  

  620 CHAPTER 22 ELECTRIC CHARGE CHAPTER 22 Answer to Checkpoint Questions 1. 2. 3. 4. C and D attract; B and D attract (a) leftward; (b) leftward; (c) leftward (a) a, c, b; (b) less than 15e (net charge of 30e is equally shared) Answer to Questions 1. 2. 3
   
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  f5ch23

  LSU PHYS 2101
  

  636 CHAPTER 23 ELECTRIC FIELDS CHAPTER 23 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) rightward; (b) leftward; (c) leftward; (d) rightward; (p and e have same charge magnitude and p is farther) all tie (a) toward positive y; (b) toward positive x; (
   
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  f5ch24

  LSU PHYS 2101
  

  CHAPTER 24 GAUSS LAW 659 CHAPTER 24 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) +EA; (b) EA; (c) 0; (d) 0 (a) 2; (b) 3; (c) 1 (a) equal; (b) equal; (c) equal +50e; (b) 150e 3 and 4 tie, then 2, 1 Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11
   
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  f5ch25

  LSU PHYS 2101
  

  CHAPTER 25 ELECTRIC POTENTIAL 681 CHAPTER 25 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. (a) negative; (b) increase (a) positive; (b) higher (a) rightward; (b) 1, 2, 3, 5: positive; 4: negative; (c) 3, then 1, 2, and 5 tie, then 4 all tie a, c (ze
   
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  f5ch26

  LSU PHYS 2101
  

  CHAPTER 26 CAPACITANCE 711 CHAPTER 26 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) same; (b) same (a) decreases; (b) increases; (c) decreases (a) V , q=2; (b) V=2, q (a) q0 = q1 + q34 ; (b) equal (C3 and C4 are in series) (a) same; (b) cfw_ (d) in
   
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  f5ch27

  LSU PHYS 2101
  

  CHAPTER 27 CURRENT AND RESISTANCE 733 CHAPTER 27 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 8 A, rightward (a) cfw_ (c) rightward (a) and (c) tie, then (b) device 2 (a) and (b) tie, then (d), then (c) Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
   
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  f5ch28

  LSU PHYS 2101
  

  750 CHAPTER 28 CIRCUITS CHAPTER 28 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) rightward; (b) all tie; (c) b, then a and c tie; (d) b, then a and c tie (a) all tie; (b) R1 , R2 , R3 (a) less; (b) greater; (c) equal (a) V=2, i; (b) V , i=2 (a) 1, 2,
   
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  f5ch29

  LSU PHYS 2101
  

  776 CHAPTER 29 THE MAGNETIC FIELD CHAPTER 29 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) +z; (b) x; (c) FB = 0 (a) 2, then tie of 1 and 3 (zero); (b) 4 (a) +z and z tie, then +y and y tie, then +x and x tie (zero); (b) +y (a) electron; (b) clockw
   
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  f5ch30

  LSU PHYS 2101
  

  800 CHAPTER 30 AMPERES LAW CHAPTER 30 Answer to Checkpoint Questions 1. 2. 3. 4. (a), (c), (b) b, c, a d, tie of a and c, then b (d), (a), tie of (b) and (c) (zero) Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. outward a, tie
   
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  f5ch31

  LSU PHYS 2101
  

  CHAPTER 31 INDUCTION AND INDUCTANCE 829 CHAPTER 31 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. (a) and (b) tie, then (c) (zero) c and d tie, then a and b tie b, out; c, out; d, into; e, into (d) and (e) (a) 2, 3, 1 (zero); (b) 2, 3, 1 a and b tie,
   
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  f5ch32

  LSU PHYS 2101
  

  CHAPTER 32 MAGNETISM AND MATTER 865 CHAPTER 32 Answer to Checkpoint Questions 1. (d), (b), (c), (a) (zero) 2. (a) 2; (b) 1 3. (a) away; (b) away; (c) less 4. (a) toward; (b) toward; (c) less 5. a, c, b, d (zero) 6. tie of b, c, and d, then a Answer to Que
   
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  f5ch33

  LSU PHYS 2101
  

  CHAPTER 33 ELECTROMAGNETIC OSCILLATIONS 887 CHAPTER 33 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. 7. 8. (a) T=2; (b) T; (c) T=2; (d) T=4 (a) 5 V; (b) 150 J (a) 1; (b) 2 (a) C, B, A; (b) 1 A, 2 B, 3 S, 4 C; (c) A (a) increases; (b) decreases (a) 1, l
   
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  f5ch34

  LSU PHYS 2101
  

  924 CHAPTER 34 ELECTROMAGNETIC WAVES CHAPTER 34 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) (Use Fig. 34-5.) On the right side of rectangle, E is in the negative y direction; on the left side, E + dE is greater and in the same direction; (b) E is
   
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  f5ch35

  LSU PHYS 2101
  

  956 CHAPTER 35 GEOMETRICAL OPTICS CHAPTER 35 Answer to Checkpoint Questions 1. 2. 3. 4. answer to kaleidoscope question: two mirrors that form a V with an angle of 60 0:2d, 1:8d, 2:2d (a) real; (b) inverted; (c) same (a) e; (b) virtual, same virtual, same
   
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  f5ch36

  LSU PHYS 2101
  

  CHAPTER 36 INTERFERENCE 983 CHAPTER 36 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) top; (b) bright intermediate illumination (phase dierence is 2:1 wavelengths (a) 3, 3; (b) 2:5, 2:5 a and d tie (amplitude of resultant wave is 4E0 ), then b and c ti
   
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  f5ch37

  LSU PHYS 2101
  

  1010 CHAPTER 37 DIFFRACTION CHAPTER 37 Answer to Checkpoint Questions 1. 2. 3. 4. 5. 6. (a) expand; (b) expand (a) second side maximum; (b) 2:5 (a) red; (b) violet diminish (a) increase; (b) same (a) left; (b) less Answer to Questions 1. 2. 3. 4. 5. 6. 7.
   
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  f5ch38

  LSU PHYS 2101
  

  CHAPTER 38 RELATIVITY 1035 CHAPTER 38 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) same (speed of light postulate); (b) no (the start and end of the ight are spatially separated); (c) no (again, because of the spatial separation) (a) Sally\'s; (b) Sal
   
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  f5ch39

  LSU PHYS 2101
  

  CHAPTER 39 PHOTONS AND MATTER WAVES 1059 CHAPTER 39 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (b), (a), (d), (c) (a) lithium, sodium, potassium, cesium; (b) all tie (a) same; (b) cfw_ (d) x rays (a) proton; (b) same; (c) proton same Answer to Question
   
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  f5ch40

  LSU PHYS 2101
  

  CHAPTER 40 MORE ABOUT MATTER WAVES 1091 CHAPTER 40 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (b), (a), (c) (a) all tie; (b) a, b, c (a), (b), (c), (d) (a) n = 1; (b) n = 3, n = 2, n = 1 (a) 5; (b) 7 Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 1
   
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  f5ch41

  LSU PHYS 2101
  

  1110 CHAPTER 41 ALL ABOUT ATOMS CHAPTER 41 Answer to Checkpoint Questions 1. 2. 3. 4. 7 (a) decrease; (b) cfw_ (c) same less A, C, B Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 0, 2, and 3 same number (10) 6p 2, 1, 0, and 1 (a) 2, 8; (b
   
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  f5ch42

  LSU PHYS 2101
  

  CHAPTER 42 CONDUCTION OF ELECTRICITY IN SOLIDS 1129 CHAPTER 42 Answer to Checkpoint Questions 1. 2. 3. 4. 5. (a) larger; (b) same Cleveland: metal; Troy: none; Seattle: semiconductor (a), (b), and (c) (b) (b) Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9.
   
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  f5ch43

  LSU PHYS 2101
  

  CHAPTER 43 NUCLEAR PHYSICS 1147 CHAPTER 43 Answer to Checkpoint Questions 1. 2. 3. 90 As and 158 Nd a little more than 75 Bq (elapsed time is a little less than three half-lives) 206 Pb Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15
   
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  f5ch44

  LSU PHYS 2101
  

  CHAPTER 44 ENERGY FROM THE NUCLEUS 1173 CHAPTER 44 Answer to Checkpoint Questions 1. 2. 3. (c) and (d) (a) no; (b) yes; (c) no (e) Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. (a) (a) (b) (b), (e), (a), (c), (d) (a) 93 Sr; (b) 140 I; (c) 155
   
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  f5ch45

  LSU PHYS 2101
  

  1190 CHAPTER 45 QUARKS, LEPTONS, AND THE BIG BANG CHAPTER 45 Answer to Checkpoint Questions 1. 2. 3. (a) the muon family; (b) a particle; (c) L (b) and (e) (c) Answer to Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. (d) into the + pion, whose track
   
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  hour+examination+2

  LSU PHYS 2101
  

   
   
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  Phys+2101+hour+exam+1

  LSU PHYS 2101
  

   
   
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  lecture1

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez 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 regu
   
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  lecture2

  LSU PHYS 2101
  

  8/26/10 Phys 2101 Gabriela Gonzlez two, three Position is a vector, function of time: r ( t ) = x ( t ) i + y ( t ) + z( t ) k j Velocity: dr ( t ) v (t) = dt r (t) = t v (t ) dt 0 Acceleration: dv ( t ) d 2 r ( t ) a( t ) = = dt dt 2 v (t ) = t a(t)
   
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  lecture3

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez Physics having predictive value! Newtons laws: two qualitative, one quantitative: 1. If no net force, no acceleration (either at rest, or moving with constant velocity) 2. F =ma 3. Action and reaction forces are equal and opposi
   
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  lecture4

  LSU PHYS 2101
  

  Review:exam1 h-p:/www.phys.lsu.edu/faculty/gonzalez/ Teaching/Phys2101/Phys2101OldTests/ Phys2101 GabrielaGonzlez
   
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  lecture5

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez Work-energy theorem: The change in kinetic energy of a particle is equal to the net work done on the particle by all external forces. 1 21 2 W = F dx = KE = mv a mv b 2 2 a b Consider a constant 1-D force producing constant acce
   
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  lecture6

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez There is potential energy associated with the work of conservative forces (gravity: U=mgh; springs: U= kx2): U = Uf Ui = -W If the only forces doing work are conservative the sum of kinetic and potential energy is conserved: U
   
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  lecture7

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez There is potential energy associated with the work of conservative forces (gravity: U=mgh; springs: U= kx2): U = Uf Ui = -W If the only forces doing work are conservative the sum of kinetic and potential energy is conserved: U
   
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  lecture8

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez p = mv Single particle: Several particles: dp = Fnet = ma dt P = p1 + p2 + p3 + . dP = Ma = F com ext dt If Fnet =0, momentum is conserved Ricardo, mass 95 kg, and Carmelita, who is lighter, are enjoying Lake Merced at dusk i
   
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  lecture9

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez 2 Pure rotation of a reference line in a solid body around an axis is described with an angle as a function of time. =s/r ccw: positive cw: negative radians rad/sec rad/sec2 3 = 0 + t v = v0 + at x = x0 + v0t + at 1 2 2 = 0 +
   
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  lecture10

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez F = ma F r = mar F t = mat F cos T = m 2 r F sin = m r = Fr sin = m r 2 = m r2 =I 2 1 We know all of that already! 3 The figure shows the massive shield door at a neutron test facility at Lawrence Livermore Laboratory; this
   
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  lecture11

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez Our definition for torque produced by a given force F about a point P as = F r sin allows us to add up torques only when the forces are all in the same plane. We now define torque as a vector, so we can add up the torques produ
   
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  lecture12

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez dP Fnet = dt dL net = dt total linear momentum total angular momentum No forces, no linear momentum: conservation of linear momentum. No torques, no angular momentum: conservation of angular momentum. 2 1 dP d ( Mv com ) dv com
   
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  lecture13

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez dP dL F= ; = dt dt Not a new concept! Bodies in equilibrium dont move, so they dont have linear momentum or angular momentum. Therefore, the net force and the net torque (about any point, in all directions!) must be zero. Pengu
   
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  lecture14

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez Ch 2,4 - Kinematics: motion in 1,2 and 3D: x(t), v(t), a(t) Ch 5,6 - Dynamics: F = ma Ch 7,8 - Energy: potential, kinetic, Work-Energy theorem Ch 9 Center of mass, linear momentum : collisions. Ch 10, 11 - Rotation: =I, rot
   
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  lecture15

  LSU PHYS 2101
  

  Phys 2101 Gabriela Gonzlez Newtons law: F = Gm1m2/r2 Explains why apples fall, why the planets move around the Sun, sciencebulletins.amnh.org And in YouTube! Explains just as well as Newtons why things fall and planetary motion Einsteins messengers, Natio