A baseball park is filled with 4400 home-team fans. In the bottom of the ninth inning, the home team's leading batter hits a game winning home run and all 4400 fans stand and cheer. Assume that each individual fan produces a sound intensity of 10-5 W/m² , as heard from the pitching mound. Part A What is the total sound intensity heard at the pitching mound? Express your answer in watts per meter squared. ? W/m? Submit Request Answer Part B What is the total sound intensity level at the pitching mound? Express your answer in decibels. dB Submit Request Answer
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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