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A) Two charges, -3.0 μC and -4.0 μC, are located at (-0.50 m, 0) and (0.75...

A) Two charges, -3.0 μC and -4.0 μC, are located at (-0.50 m, 0) and (0.75 m, 0), respectively. (a) Is the location of a point on the x-axis between the two charges where the electric field is zero (1) nearer the -3.0 - μC charge, (2) at the origin, or (3) nearer the -4.0 - μC charge? Why? (b) Find the location of the point where the electric field is zero.

B)Three charges, +2.5 μC, -4.8 μC, and -6.3 μC, are located at (-0.20 m, 0.15 m), (0.50 m, -0.35 m), and (-0.42 m,-0.32 m), respectively. What is the electric field at the origin?

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