When a body is falling freely or throwing vertically upwards, the acceleration acting on the body is equal to the acceleration due to gravity. It always acts in vertically downwards direction and it's value is 9.81 m/s^2.
<span> Light energy is verified by many scientists to be made of particles called photons. The amount of energy in each photon is related to its wavelength using the Planck-Einstein equation. </span><span>Nuclear energy the binding energy of atomic nuclei which holds the subatomic particles within the nucleus.</span>
