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Unformatted text preview: homework 01 FAUSAK, TAYLOR Due: Jan 21 2008, 4:00 am 1 Question 1, chap 22, sect 1. part 1 of 1 10 points You have 3 . 2 kg of water. One mole of water has a mass of 18 g / mol and each molecule of water contains 10 electrons since water is H 2 O. What is the total electron charge contained in this volume of water? Answer in units of C. Question 2, chap 22, sect 1. part 1 of 1 10 points What happens to the mass of an object when it acquires a positive net charge by the transfer of electrons? 1. Increases 2. Decreases 3. Doesnt change 4. Cannot be determined Question 3, chap 22, sect 2. part 1 of 1 10 points A particle of mass 85 g and charge 26 C is released from rest when it is 44 cm from a second particle of charge 10 C. Determine the magnitude of the initial ac- celeration of the 85 g particle. Answer in units of m / s 2 . Question 4, chap 22, sect 2. part 1 of 2 10 points What can we conclude from the attrac- tive nature of the force between a positively charged rod and an object? + + + F F ? 1. The object is an insulator. 2. Cannot be determined 3. The object is a conductor. Question 5, chap 22, sect 2. part 2 of 2 10 points What can we conclude from the attrac- tive nature of the force between a positively charged rod and an object? 1. The object does not have an appreciable negative charge. 2. The object has an appreciable negative charge. 3. The object has an appreciable positive charge. 4. The object does not have an appreciable positive charge. 5. Cannot be determined. 6. The object has no net charge. Question 6, chap 22, sect 2. part 1 of 2 10 points Two charged particles of equal magnitude (+ Q and Q ) are fixed at opposite corners of a square that lies in a plane (see figure below). A test charge q is placed at a third corner. + Q q Q What is the direction of the force on the test charge due to the two other charges?...
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This note was uploaded on 03/30/2010 for the course CH 369 taught by Professor Kbrowning during the Spring '07 term at University of Texas.
- Spring '07