- #1

prokaryote

## Homework Statement

https://imgur.com/a/wpir4

[/B]

a. What is the strength of the electric field at the position indicated by the dot in the figure? Use the following values: q1 = 1.09 nC, q2=0.93 nC, d1=2.49 cm, d2=6.9 cm, d3 = 4.27 cm.

b. What is the direction of the electric field at the position indicated by the dot in the figure? Specify the direction as an angle with respect to the horizontal.

## Homework Equations

E = (k*q)/r

^{2}

k = 9*10

^{9}N*m

^{2}/C

^{2}

## The Attempt at a Solution

I've tried to simply sum the electric fields, using the distance of the two hypotenuses calculated with the Pythagorean theorem:

(k*(1.09*10

^{-9}C))/(.0494297 m)

^{2}+ (k*(0.93*10

^{-9})/(.0811436 m)

^{2}

= 4.015*10

^{3}C

I also tried calculating the x and y components separately, then summing the vectors, but it took an entire page and the answer was wrong. I tried doing it two other ways, but I don't even know what I did. I'm so lost. SOS