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Homework Statement
Calculate the magnitude of the field strength at point P as shown. The distance between the centers of the 1.5E-6 C and the 9.2E-6 C charges is 5.6 cm..
Homework Equations
E = kq/r^2
E = F/Q
E = V/d
The Attempt at a Solution
Used tan and sin of 50 to find all distances
E = kq/r^2
E = (9E9)(1.5E-6C) / (7.31E-2 m)^2
E = 2.526E6 N/C
E = kq/r^2
E = (9E9)(9.2E-6C) / (4.69E-2 m)^2
E = 2.526E6 N/C
then used those numbers to find c^2 using cosine law.
I'm not getting a correct answer (obvoiusly).
Thanks,