Physics/math question

Question

anonymous · Answer

A thunder cloud has an electric charge of 43.2 C near the top of the cloud and -38.7 C near the bottom of the cloud. The magnitude of the electric force between these two charges is $$3.95 \times 10^{6} N$$. What is the average seperation between these charges? ($$kc=8.99 \times 10^{9} N \times m ^{2} \div C^{2}$$)

anonymous · Answer

@agent0smith

anonymous · Answer

okay, i dont really understand what you just said, but I can wait

agent0smith · Answer

do you recognize either of those formulas...? if not give me some formulas that you think may be relevant.

agent0smith · Answer

This is the only formula you need$$\Large F = k \frac{ Q_1 Q_2 }{r^2 }$$

you're told the charges, Q1 and Q2, and you're told F (and is given too), all you need to do is plug in the numbers, and solve for r^2

agent0smith · Answer

So just plug in k, Q1 and Q2, and F, and rearrange to find r^2

agent0smith · Answer

@HelennnnnnC