a) What is the acceleration of an electron in a circular Bohr orbit of radius
[4(pi)(epsilon_naught)(hbar^2)/(mass_electron)(e^2^)] in a hydrogen atom?
b) According to the classical electrodynamics, what is the rate at which the electron loses energy by radiation? Hint: the classical formula for energy lost by electromagnetic radiation is dE/dt=[(-e^2)(a^2)/(6)(pi)(epsilon_naught)(c^3)]
c) If the electron continues to radiate at this rate, how long does it take to reduce its enenergy from -13.6 eV to -2 x 13.6 eV?