Physics

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A point charge Q1=-2 microcoulomb is located at x=0, and a point charge Q2=+8 microcoulomb, is placed at x=-0.5 on the x axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,at various points along the x axis.

a)What is electric field (in N/C) for
-55.0 m ?

b)What is electric field (in N/C) at -0.22 m?
c)What is electric field (in N/C) at 92 m?
d)At what point (apart from x=infinite), is the electric field zero ? Express your answer in meters.

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