ch28-p079 - 79. (a) We use Eq. 28-2 and Eq. 3-30: ( v B v B...

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79. (a) We use Eq. 28-2 and Eq. 3-30: () ( ) ) ( ( )( )( ) ( ( ) ( ) ) 19 21 22 ˆˆ ˆ ijk ˆ 1.60 10 4 0.008 6 0.004 i+ 6 0.002 2 0.008 j 2 0.004 4 0.002 k 1.28 10 i 6.41 10 j yz zy zx xz xy yx Fq vB e vB v B v B v B v B vB −− = + + + + GG G with SI units understood. (b) By definition of the cross product, G G vF . This is easily verified by taking the dot (scalar) product of G v with the result of part (a), yielding zero, provided care is taken not to introduce any round-off error. (c) There are several ways to proceed. It may be worthwhile to note, first, that if
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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