Homework Assignments for Physics 104

Last update: April 21, 2004

Due dates and deadlines: Students are automatically (without special request) granted a one-lecture extension from the due date to turn in the homework. This policy allows students to postpone turning in their homework in case of sickness, family calamity, religious holiday, official school event, tests in other classes, "dog ate my homework", etc., on the due date. The deadline is firm, and any [written-on-official-stationery] excuse for missing it would have to cover the entire period from the due date through the deadline.

Homework Solutions

Exercises and problems are worth 10 points each, while cases are worth 20 points each.

You are strongly encouraged to look, in addition, at other problems. Note that the solution to many are available online at the websites for previous offerings of Physics 104, and the solution to most odd-numbered problems are at the back of the book.

Assignment 1. Due Wednesday, Feb. 4, 2004 (deadline Feb. 6).

Do the following EXERCISES (p. 34) from the book: 1.6, 1.10, 1.14
(that is Chapter 1, exercise 6, etc.)

Do the following PROBLEMS (pp. 35-6) from the book: 1.6, 1.16
(that is Chapter 1, problem 6, etc.)

Do the following CASES from the book: 1.1, 1.2
(Chapter 1, CASES 1 and 2, all parts)

Assignment 2. Due Wednesday, Feb. 11, 2004 (deadline Feb. 13).

Do the following EXERCISES from the book: 1.28, 2.14, 2.24

Do the following PROBLEMS from the book: 2.6, 2.12

Do the following CASES from the book: 2.2, 2.4

Assignment 3. Due Wednesday, Feb. 18, 2004 (deadline Feb. 20).

Do the following EXERCISES from the book: 2.38, 3.12, 3.50

Do the following PROBLEMS from the book: 3.3, 3.5

Do the following CASES from the book: 3.4, 3.7

Assignment 4. Due Wednesday, Feb. 25, 2004 (deadline Feb. 27).

Do the following EXERCISES from the book: 4.4, 4.18, 4.22

Do the following PROBLEMS from the book: 4.4, 4.8, 4.9, 4.10

Do the following CASES from the book: 4.1, 4.4a&c (counts like Exercise or Problem)

Assignment 5. Due Wednesday, March 10, 2004 (deadline March 12).

Do the following EXERCISES from the book: 5.34, 5.47-4 8 (47 & 48 count as one), 6.6, 6.8, 6.24

Do the following CASES from the book: 5.6, 6.1, 6.3

Assignment 6. Due Wednesday, March 17, 2004 (deadline March 19).

Do the following EXERCISES from the book: 6.32, 6.36, 6.38, 6.48

Do the following PROBLEMS from the book: 6.5

Do the following CASES from the book: 6.7, 6.8

Assignment 7. Due Wednesday, March 31, 2004 (deadline April 2).

Note that we are a bit behind schedule, so will need to postpone the second midterm by a few lectures. More on this after Spring Break.

Do the following EXERCISES from the book: 8.4, 8.16, 8.22, 8.32, 8.34

Do the following CASES from the book: 8.4, 8.6

Assignment 8. Due Wednesday, April 7, 2004 (deadline April 9).

In addition to what is in the textbook, you should read and skim 9.5.

Do the following EXERCISES from the book: 9.6, 9.14, 9.19-9.20 (19 & 20 together are worth 10 pts)

Exercises on part 9.4:

1. a) If you push the north pole of a magnet toward a copper plate, current will flow counter-clockwise in that plate. Which way will the current in the plate flow if you push the south pole of the magnet toward the plate? b) You hold the north pole of the magnet against the plate and suddenly pull it away, which takes work by you. Which of the plate's induced magnetic poles points toward your magnetic north pole as you pull it away from the plate?

2. a) Removing electrons from a pure semiconductor allows it to conduct electricity. Why does removing electrons from an n-type semiconductor turn it from an electric conductor into an insulator? b) When you add electrons to the n-type semiconductor side of a p-n junction, why are they attracted to the junction?

Do the following PROBLEMS from the book: 9.5, 9.7

Do the following CASES from the book: 9.1

The midterm will cover what we did in chap. 5 (parts of 5.3: lift, rockets), chaps. 6 and 8, and of chap. 9 parts 9.1, 9.2, and 9.4; in other words, the material relevant to Homework Assignments 5-8. This midterm is now scheduled for Friday, April 16, in room 1410.

Assignment 9. Due Monday, April 19, 2004 (deadline April 21).

Do the following EXERCISES from the book: 9.32&9.33 (counts as one), 10.5, 10.18, 11.2

Do the following PROBLEMS from the book: 11.2

Do the following CASES from the book: 9.6, 11.2

Assignment 10. Due Monday, April 26, 2004 (deadline April 28).

Do the following EXERCISES from the book: 11.22, 11.25, 11.30, 12.2

Do the following PROBLEMS from the book: 12.4

Do the following CASES from the book: 11.4-parts a,b,d,e,f, 12.1

Assignment 11 (last*!). Due Monday, May 3, 2004 (deadline May 5).

Do the following EXERCISES from the book: 12.24, 12.30, 12.35, 13.6, 13.7, 13.14

Do the following PROBLEMS from the book: 13.3

Do the following CASES from the book: 13.2 (Note that part d is essentially the same as exercises 13.9, 13.10, and 13.11.)

*But students unfamiliar with binary notation will need to do some (ungraded) exercises to ensure their understanding, and everyone should look at Exercise 13.21!