Question

1) Ignoring gravity, how much work is necessary to assemble 92protons into a spherical volume of radius 10^-14 meters (ten raisedto the minus 14 power)? (Hint: Assume you bring in each proton, oneat a time, from an infinite distance away from the volume - anapproximate answer will do)

more info: Assume the sphericalvolume is at a point P in space and then assume you bring to thevolume, from a great distance, one charge one at a time. Initially,there are no charges within the volume so you do no work to move inthe first charge. The second charge you bring in interacts with thefirst charge, within the volume, and so you do work to bring in thesecond charge. Now each time a new charge is brought into thevolume more and more force is necessary since within the volume theamount of charge is growing...