Four equal positive point charges, each of charge 3.0 μC, are at the corners of a square of side 3.1 cm D Part A What ch

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Four equal positive point charges, each of charge 3.0 μC, are at the corners of a square of side 3.1 cm D Part A What charge should be placed at the center of the square so that all charges are at equilibrium? Express your answer using two significant figures. ΨΕ ΑΣΦ ? #C Bequest Answer Part B Is this a stable or unstable equilibrium (see Section 9-4 in the textbook) in the plane? stable unstable Request Answer Provide Feedback Submit Submit < Return to Assignment