Physics

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Take q1=23uC at (0,1), q2=16uC. at (2,0), and q3=? at (2,2). IF the force on q1 points in the -x direction, (a) what is q3 and (b) what is the magnitude of the force on q1?


I know a is 16uC

For part B I got .067 am I right

I am using Coloumbs law

k=9.0*10^9
q1=23*10^-6
q2=16*10-6
r=7

What am I doing wrong??

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