A concert loudspeaker suspended high off the ground emits 29.0 W of sound power. A small microphone with a 1.00 cm² area is 53.0 m from the speaker. What is the sound intensity at the position of the microphone? Express your answer with the appropriate units. ► View Available Hint(s) Value Submit Part B Units ? Units input for part A How much sound energy impinges on the microphone each second? Express your answer with the appropriate units. ► View Available Hint(s)
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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