What is the variation of pressure in the sound wave
A microphone has an area of 6.6 cm2. It receives during a 2.80 s time period a sound energy of 3.6x10-11 J. What is the variation of pressure in the sound wave if the speed of sound is 343 m/s and the density of air is 1.2 kg/m3?
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What is the variation of pressure in the sound wave if the speed of sound is 343 m/s and the density of air is 1.2 kg/m3?
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sound waves to people sitting across the newsroom, 1.2 m from the newscaster. Take the speed of sound in air to be 345 m/s. What is the difference in time that the message is received?
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