Four charges of equal magnitude 7.65 C are arranged at the corners of a square of...

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Four charges of equal magnitude 7.65 C are arranged at the corners of a square of side 9.12 cm as shown in the Figure. Notice that some charges have "-" sign. Find the magnitude and direction of the force exerted on the charge in the lower left corner by the other charges. (Your result must be in multiples of 1012 Newtons. That means if you get a result of g.22 x 10" just type 9.22 in the answer box. Include 2 digits after the decimal point and maximum of 5% of error is accepted in your answer. Take k=9x10°.) +4 +9 Four charges of equal magnitude 7.65 C are arranged at the corners of a square of side 9.12 cm as shown in the Figure. Notice that some charges have "-" sign. Find the magnitude and direction of the force exerted on the charge in the lower left corner by the other charges. (Your result must be in multiples of 1012 Newtons. That means if you get a result of g.22 x 10" just type 9.22 in the answer box. Include 2 digits after the decimal point and maximum of 5% of error is accepted in your answer. Take k=9x10°.) +4 +9