2. a. An uncomfortably loud sound has an intensity of 0.54 W/m². What is the equivalent value in decibels (dB)? Show the algebraic version of the formula you used in your calculation, and watch the sig figs in the answer. b. Find the amplitude (in m) of such a sound wave if its frequency is 800.0 Hz, the density of air is 1.29 kg/m³ and the speed of sound is 344 m/s. Again, show the algebraic version of the formula you used in your calculation. c. So what physiological changes can such a small amplitude (from part b) create, that result in possible hearing damage? To answer this question, find a non-Wikipedia non-Quora non-Reddit source that calculates or states the average spacing of air molecules at standard temperature and pressure (i.e., sea level on Earth). Please give a full citation of the source. Then compare that spacing to the amplitude you calculated in part b, and answer the question.
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
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