Homework 4 - Golshani (ag5873) Homework 04 Yao (57045) 1...

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Unformatted text preview: Golshani (ag5873) Homework 04 Yao (57045) 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points Two uncharged metal balls, X and Z , stand on insulating glass rods. A third ball, carrying a positive charge, is brought near the ball Z as shown in the figure. A conducting wire is then run between X and Z and then removed. Finally the third ball is removed. Z X + conducting wire When all this is finished 1. ball X is positive and ball Z is negative. 2. ball X is neutral and ball Z is negative. 3. balls X and Z are both positive. 4. balls X and Z are still uncharged. 5. ball X is neutral and ball Z is positive. 6. balls X and Z are both negative, but ball Z carries more charge than ball X . 7. ball X is negative and ball Z is neutral. 8. ball X is negative and ball Z is positive. 9. ball X is positive and ball Z is neutral. 10. balls X and Z are both negative, but ball X carries more charge than ball Z . 002 10.0 points A strong lightning bolt transfers about 23 C to Earth. How many electrons are transferred? The charge on an electron is 1 . 60218 10 19 C. 003 (part 1 of 2) 10.0 points Three point-charges (+ q , + q , and + q ) are placed at the vertices of an equilateral triangle (see figure below). a 60 + q + q + q The magnitude of the electric force on the charge at the bottom left-hand vertex of the triangle due to the other two charges is given by 1. bardbl vector F...
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Homework 4 - Golshani (ag5873) Homework 04 Yao (57045) 1...

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