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Consider three point charges at the corners of a triangle, as shown in the figure, where q, = 5.50 x 10 C, q, = -1.60 x 10-° C, and q3 = 5.50 x 10-° C. Suppose a fourth charge, 94 = -9,, is placed so that the net force on q, is zero. What
is the distance (in m) between q, and 94?
F93
36.9° F1s sin (36.99
4.00 m
92
F13 cos (36.9°)
93
3.00 m
5.00 m
91

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