This preview shows page 1. Sign up to view the full content.
79. (a) We use Eq. 282 and Eq. 330:
()
( )
)
(
( )( )( )
(
( )
(
)
)
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 roundoff error.
(c) There are several ways to proceed. It may be worthwhile to note, first, that if
This is the end of the preview. Sign up
to
access the rest of the document.
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.
 Spring '08
 Any
 Physics

Click to edit the document details