What is the translational kinetic energy of body of mass .5 kg moves with a
speed of 20 m/s

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

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.

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?