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A very long uniform line of charge has charge per unit length -4.80 nC/m and lies...

A very long uniform line of charge has charge per unit length -4.80 nC/m and lies along the y-axis. A second uniform line of charge has charge per unit length -2.40 nC/m and is parallel to the y-axis at x= 0.600 m. What is the net electric field (magnitude and direction) at the point on the x-axis at x= 0.400 m

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