An oxygen molecule consists of two oxygen nuclei, each of mass m = 2.7 × 10−26 kg, separated by a distance 1.2 × 10−10 m, and surrounded by a cloud of electrons, each of mass 9.1 × 10−31 kg. (a) ignoring the small mass of the electron, what is the moment of inertia for rotation of the nuclei around their center of mass? if this rotation has angular momentum equal to ~ , that is, planck’s constant divided by 2π, what is the corresponding energy of rotation? express your answer in units of electron volts (ev), where 1 ev = 1.6 × 10−19 j.