P22_038.PDF

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38. Letting
kq
2
/r
2
=
mg,
we get
r
=
q
k
= 1.60
×
10
−19
C
mg
8.99
×
10
9 N·m
C
2
(1.67
×
10
−27
kg) (9.8 m/s
2
)
2
= 0.119 m
.
Zgłoś jeśli naruszono regulamin