With this information it becomes fairly easy to calculate the velocity of the waves as they travel through each layer by using the equation for the root mean square velocity starting with the top layer and working downward.
2.
From average velocity ( different from root mean square velocity ) of c _ A = \ sqrt \ frac { 8 k _ B T } { \ pi m _ A }, where \ scriptstyle k _ B is Boltzmann constant and \ scriptstyle m _ A is the mass of the molecule.
मोबाइल