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Calculate the magnitude of the electric field at a point P on the Cartesian plane with...

Calculate the magnitude of the electric field at a point P on the Cartesian plane with coordinates (1,8) m produced by an electric dipole formed by charges + 5nC and -5nC, located at points (-4.0) m and (+4.0 ) m respectively. Consider k = 9e9 Nm ^ 2 / C ^ 2. Express your result in N / C.
Hint: Remember that the position vector that goes from a point (x1, y1) to a point (x2, y2) is given by r12 = (x2-x1) i + (y2-y1) j.

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