Three point charges are arranged on the xy-plane. Charge Q3=4 µC is located on the x-axis at x=0.4 m. Charge Q2=2 µC is located on the y-axis at y=-0.3 m. Charge Q₁=2 µC is located on the y-axis at y=0.3 m. What is the net force (magnitude and direction) on Q₁?
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