A point charge Q of -9.86 C and a large flat plate with surface charge density 2.15 C/m2 together create an electric field at point P. Charge Q and point P are each a distance a = 5.03 m from the plate. Point P is a distanceb = 9.25 m from charge Q. Find the magnitude of the force exerted by the electric field on a particle with charge 4.54 nC placed at point P in the figure. Answer in units of N. plate (side view)

A point charge Q of -9.86 C and a large flat plate with surface charge density 2.15 C/m2 together create an electric field at point P. Charge Q and point P are each a distance a = 5.03 m from the plate. Point P is a distanceb = 9.25 m from charge Q. Find the magnitude of the force exerted by the electric field on a particle with charge 4.54 nC placed at point P in the figure. Answer in units of N. plate (side view)

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