please answer

Similar situation to the previous question, but now the object s mass is 30.0 kg and you initially put the boxes of protons and electrons 77 m apart. Now you want to take the two boxes and move them farther apart, to a new distance of 138 m apart. How much work (that is, energy) would you have to expend to pull the boxes that much farther apart, fighting against the electrostatic attraction between them? 1.07E+26 J 2.14E+26 J 4.28E+26 J 5.35E+25 J