Week4HW - MasteringPhysics: Assignment Print View

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Assignment 4 Due: 11:59pm on Sunday, November 21, 2010 Note: To understand how points are awarded, read your instructor's Grading Policy . [ Switch to Standard Assignment View] Placing Charges Conceptual Question Below are free-body diagrams for three electric charges that lie in the same plane. Their relative positions are unknown. Part A Along which of the lines (A to H) in the figure should charge 2 be placed so that the free-body diagrams of charge 1 and charge 2 are consistent? Hint A.1 How to approach the problem Newton’s 3rd law states that the forces exerted by a pair of objects on each other are always equal in magnitude and opposite in direction. Identifying the forces that correspond to 3rd-law pairs in the free-body diagrams will enable you to place the particles in their proper relative position. Hint A.2 Placing charge 2 Hint not displayed ANSWER: Correct Part B Along which of the lines (A to H) in the figure should charge 3 be placed so that the MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrintView. .. 1 of 10 11/20/10 8:13 PM
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free-body diagrams of charge 1, charge 2, and charge 3 are consistent? ANSWER: D Correct Part C Along which of the lines (A to H) in the figure should charge 2 be placed so that the free-body diagrams of charge 1 and charge 2 are consistent? ANSWER: H Correct Part D Along which lines (A to H) in the figure should charge 3 be placed so that the free-body diagrams of charge 1, charge 2, and charge 3 are consistent? MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrintView. .. 2 of 10 11/20/10 8:13 PM
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ANSWER: F Correct The Sign of the Charge Part A A glass marble is rubbed against a piece of silk. As a result the piece of fabric acquires extra electrons. What happens to the glass marble? Hint A.1 How to approach the problem Hint not displayed Hint A.2 Electrostatic interaction between charges Hint not displayed Check all that apply. ANSWER:
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This note was uploaded on 11/20/2010 for the course PHYS PHYS 320 taught by Professor Feiwang during the Fall '10 term at DeVry Chicago.

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Week4HW - MasteringPhysics: Assignment Print View

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