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An infinitely wide, horizontal metal plate lies above a horizontal infinite sheet of charge with surface charge density 550 nC/m2. The bottom surface of the plate has surface charge density −100 nC/m2. What is the surface charge density on the top surface of the plate? Express your answer with the appropriate units.

An infinitely wide, horizontal metal plate lies above a horizontal infinite sheet of charge with surface charge density 550 nC/m2. The bottom surface of the plate has surface charge density −100 nC/m2. What is the surface charge density on the top surface of the plate? Express your answer with the appropriate units.

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An infinitely wide, horizontal metal plate lies above a horizontal infinite sheet of charge with surface charge density 550 nC/m2. The bottom surface of the plate has surface charge density −100 nC/m2. What is the surface charge density on the top surface of the plate? Express your answer with the appropriate units.

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