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Unformatted text preview: Physics 141 (Spring 2009): Problem Set #2 (due 11 February 2009) Chapter 1 : Questions: 12, 13, (14), 16, 18, 19, 22, 23, (24). Problems: (35), 37, 53, 55, 57, (59), (68), (70), 73, 77, 80, (81), (83), 87, 97. Supplementary Problems : 1. Prove that two vectors must have equal magnitudes if their sum is perpendicular to their difference. 2. If vector a · vector b = vector a · vector c , does this imply that vector b = vector c ? If not, what can you conclude about vector b and vector c ? (3) Does vector a × ( vector b + vector c ) = vector a × vector b + vector a × vector c ? 4. A vector vector a lies parallel to the Earth’s rotation axis, pointing from south to north. A second vector vector b points vertically upwards at your location. What is the direction of vector a × vector b ? At what locations on the surface of the Earth is the magnitude of the vector vector a × vector b a maximum? A minimum?...
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This note was uploaded on 08/24/2010 for the course PHYS 141 taught by Professor Dienes during the Spring '08 term at Arizona.
 Spring '08
 Dienes
 Physics, mechanics

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