Solve the all parts of given problem:
Problem: A charge 5.04nC is placed at the origin of an xy-coordinate system, and a charge -2.04nC is placed on the positive x-axis at x = 3.99cm. A third particle, of charge 5.99nC is now placed at the point x = 3.99cm, y = 2.97cm.
Part A: Find the x-component of the total force exerted on the third charge by the other two.
Part B: Find the y-component of the total force exerted on the third charge by the other two.
Part C: Find the magnitude of the total force acting on the third charge.
Part D: Find the direction of the total force acting on the third charge.
I know the correct answer for above problem but explain how to get this answer! Thanks.