1. The problem statement, all variables and given/known data 5. An alpha particle ( 2 protons and 2 neutrons) is placed between two stationary, charged objects. It is 0.0030 m to the right of the object carrying a +1.0 X 10-12 C charge, and 0.0020 m to the left of the object carrying a -2.0 X 10-12 C charge. Draw a picture and determine: a) the magnitude and direction of the electrical force acting on the alpha particle. b) the rate and direction of the acceleration of the alpha particle. 2. Relevant equations F=kq1q2/r^2 3. The attempt at a solution I just don't understand I have the charge of the objects on both ends but I don't have the charge of the particle in the middle so how am I going to solve it?