a metalic surface of area L*L=10^-8 is charged with a possitive charge Q culomb.

Question

a metalic surface of area L*L=10^-8 is charged with a possitive charge Q culomb. the metalic plate is located in the [x,y,z=0] plane. a possitive charge q=10^-9 culomb is released from the coordinate [x=0,y=0,z=10^-6] with an almost zero velocity Vz%u22480 in the z direction.as a result of the metalic surface the possitive charge is detected at the possition [x=0,y=0,z=10^-5]. at this point the possitive charge ha reached a kinetic energy of 0.01 electronVolt=0.01*1.6*10^-19 joule.

using this infometion can you find the charge of the plate? (you can ignore the initial kinetic energy)

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