Q. Imagine that you are a Haitian taptap driverand want a more comfortable ride. You decide to replace the springswith new springs that can handle the typical heavy load on yourvehicle. What spring constant do you want your new spring system to have?
Q. Four different arrangements of point charges. In each case the charges are the same distance from the origin.
Rank the four arrangements in order of decreasing electric potential at the origin, taking the potential at infinity to be zero.