1-7 Energy and power of a traveling wave on a string
Average power transmitted by a sinusoidal wave on a string
Since the amount of energy transmitted varies
with time, we will consider, instead, the average power transmitted by the
wave, which is defined as the amount of energy transmitted in one period per
At any point, there is a flow of kinetic and
potential energies from left to right.
Consider a wave traveling to the right on a