47. Using Eq. 2529, with
σ
=
q
/
A
, we have
G
E
q
A
==
×
κε
0
3
200 10 N C
which yields
q
= 3.3
×
10
–7
C. Eq. 2521 and Eq. 2527 therefore lead to
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 Spring '08
 Any
 Physics

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