For a disc of mass M and radius R that is rolling without slipping, which is greater, its translational or its rotational kinetic energy?

Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells? (a)gamma rays (b)visible light (c)infrared light (d)microwaves

Gunpowder residue is most likely to show up where on a shooters hands

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.