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Serway_PSE_test_ch03 - If two collinear vectors A and B are...

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If two collinear vectors A and B are added, the resultant has a magnitude equal to 1.0. If B is subtracted from A , the resultant has a magnitude equal to 9.3. What is the magnitude of B ? (Assume | A | > | B |.) Select the correct answer. 1 2 3 4 5 20% 20% 20% 20% 20% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 4.2 2. 5.2 3. 8.3 4. 2.8 5. 4.7
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Starting from one oasis, a camel walks 27 km in a direction 14° south of west and then walks 40 km toward the north to a second oasis. What distance separates the two oases? Select the correct answer. 1 2 3 4 5 20% 20% 20% 20% 20% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 43 km 2. 15 km 3. 53 km 4. 67 km 5. 28 km
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A vector, B , when added to the vector C = 9 i + 8 j yields a resultant vector which is in the positive y direction and has a magnitude equal to that of C. What is the magnitude of B ? Select the correct answer.
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