Two charges, q1 and q2, are held a fixed distance d apart. a. Find the strength of the electric force that acts on q1. Assume that q1=q2=21.3 micro COulombs and d=1.52 m. b. A third charge q3=21.3 micro COulombs is brought in and placed as shown. Find the stregnth of the electric force on q1 now.(adsbygoogle = window.adsbygoogle || []).push({});

My best attempt at showing the diagrams:

a.

q1----------q2

b.

q1----------q2

__-----------

___--------

____-----

_____q3

b is an equilateral triangle if you cant figure out by the diagram with all sides a distance d. edit: i see the my attemtp at diagrams isnt working too well buts the general idea

I got part a with Fe=1.77 N

I don't know what to do for part b other than its some application of Fe=kq1q2/r^2 . Thanks for the help

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# Homework Help: Coulombs law problem

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