In a thundercloud there may be an electric

charge of 18 C near the top of the cloud and
−18 C near the bottom of the cloud.
If these charges are separated by about
7 km, what is the magnitude of the elec-
tric force between these two sets of charges?
The electric force constant is 8.98755 ×
109 N · m2/C2.
Answer in units of N.

1 answer

F=kqq/s^2

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