Student Name: AP Physics 1 Semester Exam-Part II (Free Response) 20 points Directions: Two charges, +Q and +20, are positioned along the y axis of an x-y coordinate system as shown. Charge 1 is at the point (0, a) and Charge 2 is at the point (0, -2a]- Answer the following questions and then scan this response in to be attached to this exam. Be sure to show all your work for maximum points on this question! Charge 1 +9 9 (0, a) +2q (0, -2a) Charge 2 a) Find the electric force (magnitude and direction) felt by Charge 1 due to Charge 2.AP Physics 1 Semester Exam-Part II (Free Response) b) Find the electric field (magnitude and direction) at the origin created by both charges. c) If a small negative charge, -q, of mass m were placed at the origin, what is its initial acceleration