Homework Answers
F=KQ/r2
In question Kc/m2
Q=c. ,r2=m2
(a) K=9×10^9
C=1.628×10^-23
r=2
F=3.663×10^-14
Then r=20
F=KQ/r2
From this Q=1628×10^-24C
(b). Work=F×D
Then F=KQ/r2
r2=D
W=KQD/r2
Then W=KQ
9×10^9×162.8×10^-23=1465.2×10^-14
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