The mass of an atom oscillating at a frequency of 8.6 x 1011Hz in its lattice is 1.2 x 10-26 kg. If the amplitude of its oscillations is 0.045nm, find (a) its total energy in joules and eV, (b) its maximum speed, (c) its maximum acceleration, and (d) its equivalent spring constant. Note: 1eV = 1.6 x 10-19J.