Consider the diatomic molecule oxygen O2 which is rotating in the xy plane about the z axis passing through its center(Physics Question)?

Consider the diatomic molecule oxygen O2which is rotating in the xy plane about the z
axis passing through its center, perpendicularto its length. The mass of each oxygen atom
is 2.66 × 10−26 kg, and at room temperature,the average separation distance between the two oxygen atoms is 2.12 × 10−10 m (treat the atoms as point masses). If the angular speed of the molecule about the z axis is 3.94 × 1012 rad/s, what is its rotational kinetic energy?Answer in units of J.