A charge of q = +1.2 uC is placed in a uniform y-directed electric field of magnitude 2.8 X 103 N / C . How much work must be performed in order to move the charge a distance -3.5 cm in the y- direction? How much work must be performed in order to move the charge a distance +3.5 cm in the x- direction? What is the potential difference between the initial and final positions of the charge