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Unformatted text preview: xu (xx638) Homework #4 nevils (77401) 1 This printout should have 25 questions. Multiplechoice questions may continue on the next column or page find all choices before answering. 001 10.0 points Consider the vector M = (+ a, + d ) = + a + d . b a c d d c a b b a c d d c a b F B A G C E D H x y Which vector is a valid representation of M ? 1. H and G , but no others. 2. G only. 3. H only. 4. B and E , but no others. 5. C and F , but no others. 6. D , E , B , and A , but no others. 7. A only. 8. D only. 9. H , C , F , and G , but no others. 10. D and A , but no others. 002 (part 1 of 2) 10.0 points Consider the two vectors vector M = ( a, b ) = a + b and vector N = ( c, d ) = c + d . What is the value of the scalar product vector M vector M ? 1. a b 2. 2 a b 3. a + b 4. radicalbig a 2 + b 2 5. 2 a b 6. a 2 + b 2 7. a 2 b 2 8. a 2 + 2 a b + b 2 9. a 2 2 a b + b 2 003 (part 2 of 2) 10.0 points What is the value of the scalar product vector M vector N ? 1. a 2 + b 2 + c 2 + d 2 2. a d + b c 3. a b + c d 4. a b c d 5. a b c d 6. a c + b d 7. a d b c 8. radicalbig a 2 + b 2 + radicalbig c 2 + d 2 9. a c b d 004 (part 1 of 2) 10.0 points Consider four vectors vector F 1 , vector F 2 , vector F 3 , and vector F 4 with magnitudes F 1 = 36 N, F 2 = 38 N, F 3 = 15 N, and F 4 = 68 N, 1 = 130 , 2 = 150 , 3 = 31 , and 4 = 65 , measured from the positive x axis with counterclockwise positive. xu (xx638) Homework #4 nevils (77401) 2 What is the magnitude of the resultant vec tor vector F = vector F 1 + vector F 2 + vector F 3 + vector F 4 ? Answer in units of N....
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This note was uploaded on 12/10/2010 for the course PHY 101L taught by Professor None during the Spring '08 term at University of Texas at Austin.
 Spring '08
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