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Sound waves, Wave characteristics, image, (If you have a better one...) -…
Sound waves
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Sound
the speed of a sound depend of the elements where it is : 340m/s in air ,1500m/s in water and 5000m/s in solid
amplitude refers to the distance of the maximum vertical displacement of the wave from iys mean position and it corresponf to the loudness.
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Sound level: Ammount of energy passing per second through each square meter of the area (measured in decibels (dB)
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the intensity (I) is the power per unit area carried by a wave, its unit is W/m² and its formula is P/A where P is the power (W) through an area (2πR²)
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