Problem 9: Four point charges of equal magnitude Q = 55 nC are placed on the corners of a rectangle of sides D1 = 25 cm and D2 = 11 cm. The charges...

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Problem 9: Four point charges of equal magnitude Q = 55 nC are placed on the cornersof a rectangle of sides D1 = 25 cm and D2 = 11 cm. The charges on the left side of the rectangle are positive While the charges on the right side of the rectangle are negative. Use a coordinate system fixed to the bottom left hand charge, With positive directions asshown in the figure.