Here's the question you clicked on:
JenniferSmart1
I'm having trouble cancelling out my units. \[(N \cdot \cancel{m^2}/\cancel{C^2)}\left[\frac{\cancel{C}}{\cancel{m}^2}+\frac{\cancel{C}}{\cancel{m}^2}\right]\] I've N left, but I should have N/C
\[N \cdot \cancel{m^2}/\cancel{C^2)}\left[\frac{\cancel{C}}{\cancel{m}^2}+\frac{\cancel{C}}{\cancel{m}^2}\right]\]
Just reposting the question :)
nevermind I think I see my mistake, C^2 doesn't cancel out C
Very nice. You solved your own problem by yourself.
But where is 2 in the numerator?
2 in the numerator?
\(\frac{C}{m^2}+\frac{C}{m^2}=\frac{2C}{m^2}\)
The m's are different, I can't add them. \[8.99\times10^9N\cdot m^2/C^2\left[\frac{(-5\times10^{-6}C)}{(0.11m)^2}+\frac{(5\times10^-6C)}{(0.09m)^2}\right]\]
I just needed to cancel my units out to make sure I'm doing the calculations correctly, because the answer is supposed to be in N/C
Ah, i understood, that is ok.