INS Physics, Spring 2003
Homework 1
Due by 3:30 on Wednesday of Week 2 (April 9, 2003)
Textbook Problems
Chap. 1, Conceptual Questions (p. 20): 14, 18
Chap. 1, Problems (p. 23): 35, 44
Chap. 18, Problems (p. 552): 2, 5, 8, 13, 14, 15

Reminders (for all homework assignments this quarter):
A. Please include the homework number on your assignment.
B. Each problem should include the following headings: Given, Wanted, Solution
Brief Answers (Full Solutions on Open Reserve in Library)
Chap. 1, Conceptual Questions
14. Yes, they can add to zero. The final vector should end at the origin.
18. Yes, the components also double.
Chap. 1, Problems
35. 222m at an angle of 55.8 degrees below the x-axis
44. 2.7 km at an angle of 60 degrees
Chap. 18, Problems
2. 3.1x1013 electrons
5. (a) +1.5q  (b) +4q  (c) +4q
8. 26 N
13. 6.8 N
14. (a) 14400 N, attractive  (b) 3240 N, repulsive
15. (a) 4.56x10-8 C (b) 3.25x10-6 kg