1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution i dont understand what happens at the end, when the pail becomes negative charged!. my assumption is that since the positive charged nylon rod is making the electrons to closed together in one side of the pail by attraction, when the man takes off the nylon rod, the electrons in the pail will be distributed evenly on the surface of the can, but i am not sure!! help i been thinking about these for 3 days!!