Compute all parts of following question:
Question: A charge of -3.25nC is placed at the origin of a xy-coordinate system, and a charge of 2.40nC is placed on the y axis at y = 3.50cm.
Part A: If a third charge, of 5.00 nC, is now placed at the point x = 2.55cm, y = 3.50cm find the x and y components of the total force exerted on this charge by the other two charges.
Part B: Find the magnitude of this force.
Part C: Find the direction of this force.
Any help I can get on this problem is greatly appreciated! I'm not too familiar with this question.