Two point charges are lying on the y-axis as in the figure: q1 = −3.40 μC and q2 = +3.40 μC. They are equidistant from the point P, which lies on the x-axis. (a) What is the magnitude of net electric field at P? (b) A small object of charge 90 = 8.40 μC and mass m = 1.25 g is placed at P. When it is released, what is the magnitude of its acceleration? (a) Number Units (b) Number Units