The nucleus of a 125Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q =+54e.
part A : What is the electric force on a proton 1.8fm from the surface of the nucleus? Hint: Treat the spherical nucleus as a point charge.
part B: What is the proton's acceleration?