This assignment is due before 9 AM, Friday, September 29^th, 2000.

• Puzzle solutions are due by 9:00 AM on Friday of each week.
• Puzzles are worth 5 points of extra credit each.
• Answers must be accompanied by valid reasoning. Just like the tests, the answer alone isn't enough!
• Each week, the first student to submit a correct answer will recieve the stylish 251 T-shirt.
• Previous winners get a "virtual t-shirt." No shirt, but a chance to win a prize with actual value at the end of the semester (often a book, or maybe software).
• Please enter your solution in the text area at the bottom of this page. DON'T FORGET TO GIVE YOUR NAME!

Consider the figure above. The blue ball at (-1,1,0) carries a charge Q, and the green ball at (1,-1,0) carries a charge -Q. I wish to move a small positive test charge, q, from (0,-3,0) to (0,3,0) by one of two routes:

Route 1: straight along the y-axis
Route 2: a path with two diagonal elements passing through the point (-2,0,0)

Which of the following statements is true?

1. I do more work using Route 1 than Route 2.
2. I do more work using Route 2 than Route 1.
3. I do zero work in either case.
4. I do an equal, positive amount of work in either case.
5. I do an equal, negative amount of work in either case.
6. There is not enough given information to decide.

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