Electric Forces and Fields

Question

lowkey · Answer

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lowkey · Answer

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lowkey · Answer

@Vocaloid I'm so sorry to bother you.

lowkey · Answer

I know now to use E=kQ/r^2 because we are trying to find the magnitude of one charge.

lowkey · Answer

How would I do number three?

Vocaloid · Answer

it's been a while since I've done this but you would have to find the electric field of each charge at the point x, decompose into horizontal and vertical components, and find the magnitude/direction using the x and y components

lowkey · Answer

Decompose into horizontal and vertical components?

Vocaloid · Answer

like, if you have a vector that isn't pointing horizontally or vertically you have to find the angle with respect to the horizontal and calculate Ecos(theta) and Esin(theta)

Vocaloid · Answer

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lowkey · Answer

I used the equation E=kQ/r^2 formula to attempt to solve a). 
However, I don't understand why r is not 20.

Vocaloid · Answer

r is the distance from the point to the charge, idk what your diagram looks like

lowkey · Answer

Ohh, that makes sense lmao

lowkey · Answer

$\color{#0cbb34}{\text{Originally Posted by}}$ @lowkey

$\color{#0cbb34}{\text{End of Quote}}$

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