The class is about heat, waves, and light. The website wants exactly the perfect answer and in the same metric system units that are stated on the calculators that are on the picture for the question, if not, it'll mark it wrong.

Four charges of magnitude 4; are arranged in a square array of side length a'. No of the charges, located at opposite corners of the square, are positive; the other two are negative. Find the magnitude IFl of the force on one of the charges. Express your answer using the symbols 1;. d. and It, where k is the proportionality constant in Coulomb's law. IFincl the x and y- components of the forces on one of the charges (say. the upper left) due to each of the other three charges in turn. IAdd up the three force vectors componentwise to nd the resultant vector; then nd the magnitude of the resultant