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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We observe two charges separated by a distance of 1.00 meters. If the distance between the two charges is changed to be half what it was, by what factor would the electric force of between them be changed. That is, what is the ratio of the new for
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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An air puck of mass 0.273 kg is tied to a string and allowed to revolve in a circle of radius 0.85 m on a horizontal, frictionless table. The other end of the string passes through a hole in the center of the table and a mass of 0.48 kg is tied to
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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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