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Two charges are placed on the y axis. One charge of +3.5 micro-coulombs is placed at...

Two charges are placed on the y axis. One charge of +3.5 micro-coulombs is placed at y +3.9 m, and another charge of +10.7 micro-coulombs is placed at y = -4.8 m. If a third charge of -6 micro-coulombs is placed between them, where on the y axis (i.e. y = ______) is the total for electric force on this charge equal to zero? Answer in meters.

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