Serway_PSE_quick_ch11

Serway_PSE_quick_ch11 - Physics for Scientists and...

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Physics for Scientists and Engineers, 6e Chapter 11 - Angular Momentum
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Which of the following is equivalent to the following scalar product: ( A × B ) · ( B × A )? 1 2 3 4 25% 25% 25% 25% 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. A · B + B · A 2. ( A × A ) · ( B × B ) 3. ( A × B ) · ( A × B ) 4. -( A × B ) · ( A × B )
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This result can be obtained by replacing B × A with - ( A × B ), according to Equation 11.4.
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Which of the following statements is true about the relationship between the magnitude of the cross product of two vectors and the product of the magnitudes of the vectors? 1 2 3 4 25% 25% 25% 25% 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. | A × B | is larger than AB 2. | A × B | is smaller than AB 3. | A × B | could be larger or smaller than AB , depending on the angle between the vectors 4. | A × B | could be equal to AB
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Because of the sin θ function, | A × B | is either equal to or smaller than AB , depending on the angle θ .
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Serway_PSE_quick_ch11 - Physics for Scientists and...

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