A positive charge of 0800 microc is located in a uniform

Question

Problem: A positive charge of 0.800 µC is located in a uniform field of 1.15 × 10⁵ N/C. A negative charge of -0.400 µC is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge due to the field.

Part A: How close are the two charges?

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