The sound intensity at a gasoline station next to a turnpike averages 10-3 W/m2. The owner decides to collect this energy and convert it to thermal energy for heating his building. If his conversion is 100 percent efficient, what is the length of the side of a square sound collector that is needed to provide thermal energy at a rate of 500 W? Is this practical? Explain.

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.