Work Power And Energy

Potential energy stored in a stretched spring is given by: If stretching by gives energy , then: If stretched by 4 cm, the energy becomes:

A stationary wave is formed by the superposition of two identical waves moving in opposite directions.
Although energy is stored in the wave in the form of standing patterns of nodes and antinodes, there is no net transfer of energy from one point to another.
In contrast, progressive waves (longitudinal, transverse, or electromagnetic) do transport energy.