<span>The value of the constant needed to complete in joules to three significant figures is 2.18 x 10^-18 J.</span>
I believe it is Acoustics, the real name for it would be like Reverberation. But go with Acoustics. :)
The Law of Conservation of Energy states that, in an isolated system, energy remains constant and can not be created or destroyed, only transferred from one form to another. This law was created by Julius Robert Mayer.
