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.

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.