A). Two identical rubber halls are electrically charged and placed within an insulated frictionless glass bowl and come to rest as shown in the diagram. i. Determine the charge on the rubber balls. . ; m: 10 g "a. _'f " R: 20 cm ii. Determine the location where an identical charge must he placed so the the net electric field is zero at the centre of the top of the bowl. iii. Determine the work an external force must do to move the identical charge from the far reaches of space to the position determined in part ii. iv. Determine where the total electric potential equals zero in part