Answers edited by Md H S Shohrawardy
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How much work does it take to raise a
3 kg
3
k
g
weight
81 m
81
m
?
A charge of
-2 C
−
2
C
is at
(3, -7 )
(
3
,
−
7
)
and a charge of
1 C
1
C
is at
(-3 , 4 )
(
−
3
,
4
)
. If both coordinates are in meters, what is the force between the charges?