In the image are three point charges, Q1=18.4 μC, Q2=−30.6 μC, and Q3=57.3 μC, arranged according to the figure. A fourth point charge is located at point A with a charge of QA=17.5 μC. The charges form a square with height, y, of 80.1 cm and width, x, 80.1 cm. Calculate the magnitude F of the net force on the charge at point A.

In the image are three point charges, Q1=18.4 μC, Q2=−30.6 μC, and Q3=57.3 μC, arranged according to the figure. A fourth point charge is located at point A with a charge of QA=17.5 μC. The charges form a square with height, y, of 80.1 cm and width, x, 80.1 cm. Calculate the magnitude F of the net force on the charge at point A.