please use 8.99x10^9 as K

Three charges in 2D Communicate your understanding of the concept by writing out a full solution on a piece of paper and uploading it below. Your response must address all aspects of the question and show all calculations. You work must be organized, have a logical flow and be easy to follow. Your image(s) must be clear and easy to read. Type in a statement that answers the question: Calculate the net electrostatic force on sphere C. Three spheres are positioned according to the diagram below. 4.00 x 10'2 m +1.80 uC -3.00 pC