29:011 Summer 2013 Problem Assignments

The assignments will not be collected and graded, however doing the assignments is essential to learning the course material. Physics is learned through application of the principles by problem solving. This requires that you attempt to work the problems. The solutions to the assignments will also be posted on this page a few days after the assignment is made. It is important to know that reading the solutions is not a substitute for trying to first do the problems on you own. Some of the exam questions may be similar to those that are assigned.

A note on significant figures. I am not so concerned with significant figures and this will not be an issue on exam problems. The correct answers will be clear and you will not have to choose answers based on significant figures. The answers that are given for the homework problems may have been rounded, so your answer may not be exactly the same as the posted one. The method of solution is more important that the number of significant digits in the final answer.

• The answers to the odd numbered problems are given in the back of the book, the answers to the even numbered problems will be given here.
• The full solutions to the problems will be posted on ICON a few days after the assignment is posted.

Chapter 1:    2, 5, 6, 11, 15, 17, 24, 29, 37, 40, 49, 50, 64, 66    Solutions on ICON

even # answers:  2. (a) 54.7 km/h, (b) 15.2 m/s; 6. 1/[T]³; 24. 200 N or 600 N;
40. (a) 200 N, (b) 41°;  50. 13 m, 52°;  64. (a) 370 N, (b) +230 N;  66. 18.7 N, 76°

Chapter 2:     2, 8, 9, 17, 18, 19, 24, 25, 29, 33, 37, 44, 49, 55, 61, 68    Solutions on ICON

even # answers:  2. (a) +4 m/s, (b) -4 m/s, (c) +10 m/s; 8. 64 s; 18. (a) 2.8 m/s, (b) 2.8 m/s;
24. (a) 4.5 m; 44. (a) 35 m/s, (b) 14 m/s; 68. (a) -20 km/h, (b) 10 km/h, (c) 40 km/h

Chapter 3:    12, 14, 19, 27, 29, 35, 37, 41, 45, 71     Solutions on ICON

even # answers: 12. (a) 6490 m/s, (b) 7070 m/s; 14. 2.40 m

Chapter 4:    3, 5, 7, 15, 21, 25, 27, 35, 39, 45, 49,

                    53, 57, 61, 65, 77, 79, 83, 89, 99            Solutions on ICON

Chapter 5:     7, 11, 15, 22, 23, 29, 33, 35, 39, 53, 59    Solutions on ICON

even # answers:    22. (a) 0.91, (b) 38 m/s

Chapter 6:    3, 11, 15, 25, 31, 39, 41, 43, 47, 51, 59, 77, 85    Solutions on ICON

Chapter 7:    1, 5, 9, 11, 23, 28, 31, 33, 35, 38, 45, 53    Solutions on ICON

even # answers: 28- 3.5 m/s; 38- (a) 4.85 m/s, (b) -0.97 m/s

Chapter 8:    1, 3, 7, 9, 13, 21, 23, 29, 37, 40, 47, 65, 67, 69    Solutions on ICON

even # answers: 40- (a) 466 m/s, (b) 71°

Chapter 9:    1, 3, 7, 9, 15, 18, 21, 25, 69, 72    Solutions on ICON

even # answers:18- 189 N, 27.7N; 72- 0.7 m

Chapter 10:    1, 2, 3, 4, 7, 11, 12, 17, 21, 27, 30, 33, 43, 45     Solutions on ICON

even # answers:    2- (a) 30 N/m, (b) 9 N; 4- 0.1 m; 12- 0.79; 30- 6.5 m/s

Chapter 11:    5, 7, 13, 22, 27, 19, 33, 36, 41, 45, 49, 85, 97     Solutions on ICON

even # answers:   22-(a) 9.95e+4 Pa, (b) 1.00e+5 Pa; 36-3100 N

Chapter 12:    1, 3, 5, 11, 17, 21, 43, 45, 49, 53, 57, 61, 71     Solutions on ICON

Chapter 13:    3, 5, 9, 13, 15, 20, 21, 24, 35    Solutions on ICON

even # answers:   20- 0.37; 24- 1.19

Chapter 14:    1, 3, 7, 11, 13, 19, 24, 33, 35, 37, 41, 53, 57    Solutions on ICON

even # answers: 24- (a) 8.17e-4 m³ , (b) 2.3 g

Chapter 15:    1, 3, 4, 5, 11, 15, 44, 46, 47, 51, 53, 57, 83, 85    Solutions on ICON

even # answers: 4- +2.8x10⁴ J; 6- 436 K; 44- (a) 8594 J, (b) 3094 J; 46- 3808 J

Chapter 16:    1, 3, 5, 7, 13, 14, 31, 35, 42, 53, 56,

                        63, 67, 69, 93, 98, 101    Solutions on ICON

even # answers:  14- 339 m/s; 42- 283 K; 56- 2.39x10^-5 W/m²; 98- 3.88x10^-3 m