In some of Rutherford's experiments (Fig. 27-19) the particles (mass = 6.64 10-27 kg) had

Question:

In some of Rutherford's experiments (Fig. 27-19) the α particles (mass = 6.64 × 10-27 kg) had a kinetic energy of 4.8 MeV. How close could they get to the surface of a gold nucleus (radius = 7.0 × 10-15 m, charge = + 79e)? Ignore the recoil motion of the nucleus.