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It is very important that you understand the homework problems. Discussing with other students is encouraged as long as you really comprehend what you are doing. Copies from others or from the manual will not be accepted.

 

How the homework will be graded: Only 1 to 3 problems will be checked in detail by the instructor. The grade will be based on these problems’s work and answer, and also on the completeness of all the problems. It is very important that you SHOW YOUR WORK. Explain clearly and briefly the steps you follow and why. If only the answer is given you will have no points.

 

The homework assignments will be announced in the webpage and in the lecture.

 

How the homework has to be presented:

Use this model as a guide:

               

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Hw 1                                                                                               Name: Your Name               

                                                                                                        Section: 1 or 2

Ch. 18: 1,2,,3,7,10,13,16

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18.1

 

Data: Qtot=+2.4 microC                               Unknowns: # of electrons removed

 

Solution: I have to remove (Qtot / e)  electrons:

 

Qtot / e = 2.4 x 10-6 C / 1.6 x 10-19 C =    1.5 x 1013 electrons

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18.2….

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Assignments:

 

  • Homework 1:  CH 18, Problems 1,2,3,7,10,13,16                                                             Solution

 

  • Homework 2: CH 18, Problems 29,32,33,38,54; CH 19, Problems 5,13,19  Solution

 

  • Homework 3: click here                                                                                                      Solution

 

  • Homework 4:  click here                                                                                                     Solution                

 

  • Homework 5: CH 21: Prob. 14,21,33,41,54,60; CH 22: Prob. 4,16,23,32       Answer to even problems: Ch. 21. 14:  4.3 x 102 m,  7.8 x 105 m; 54: 1.5 x 10-4 N; 60: zero; Ch. 22.4: 7800 V; 16: 7.7 x 10-3 Wb; 32: upward

 

  • Homework 6: (due Tuesday October 10th)  CH 22: Prob. 44, 51, 59; CH 23: 6, 10, 13, 25         Answer to even problems: Ch. 22. 44: 9.3 X 10-3 H.  Ch 23. 6:  6.4 x 10-6 F,  9 x 10-4 C; 10: 0.075 A

 

  • Homework 7: (due Friday October 13th)  CH 23: 33, 44. CH 24: 3,12,17     Answer to even problems: Ch 23. 44: 3;  Ch. 24. 12: 4.5 x 107 Hz

 

  • Homework 8: (due Friday October 20th)  CH 24: 30, 32, 40; CH 25: 2, 10, 13, 22, 24, 36           Answer to even problems: Ch. 24. 30:  2.7 x 10-5 N,  3.3 x 10-9 N; 32:  640 Hz,   the wave that returns to the police car  has the greater frequency. 40: 68 N/C;  Ch.25. 2: 0.91 m , 0.85 m ; 10: 7.5 cm, 1 cm; 22: 180 cm, 60 cm; 24: -17 cm; 36: 70.6o , 62.1 o.

 

  • Homework 9: (due Friday October 27th)  CH 26: 8, 16, 29, 36, 41, 64, 73, 79, 85, 91   Answer to even problems: 8: 4.3 cm; 16: 2.1 cm; 36: 60.1o,  1.74; 64: 160 cm.

 

  • Homework 10: (due Friday November 3rd )  CH 27: 5, 6, 11, 16, 21, 24, 31 Answer to even problems: 6: 4.3 mm; 16: 100 nm, 210 nm; 24: 8.

 

  • Homework 11: (due Friday November 10th )  CH 28: 5, 6, 12, 17, 22, 32      Answer to even problems: 6: 0.44 ms; 12: 3400 m x 1500 m; 22: 1.7 x 10-13 J; 32: 0.92c.

 

  • Homework 12: (due Friday November 17th )  CH 29: 8,10,15,18,23,28,36   Answer to even problems: 8: 190 nm; 10: 9.56 x 10-12 m; 18: 0.1819 nm, 1.092 x 10-15 J; 28: 6.01 x 10-11 m; 36: 3.6 x 104 m/s.

 

  • Homework 13: (due Monday November 27th )  CH 30: 3, 6, 7, 17, 23, 25   Answer to even problems: 6: 7.3 x 10 -14 m

 

  • LAST! Homework 14 : (due Monday December 4th )  CH 31: 15,17,20,24,35,43     Answer to even problems: 20: 0.313 MeV; 24: 4.2 MeV