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Velocity and Waves Practice Test
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Q1
At a local concert, a speaker is set up to produce low-pitched base sounds with a frequency range of 20Hz to 200Hz, which can be modeled as sine waves. In a simplified model, the sound waves the speaker produces can be modeled as a cylindrical pipe with one end closed that travel through the air at a velocity of 
, where T is the temperature in °C.
How long would it take for a 30Hz beat to reach an audience member 100m away when the ambient temperature is 21ºC?
At a local concert, a speaker is set up to produce low-pitched base sounds with a frequency range of 20Hz to 200Hz, which can be modeled as sine waves. In a simplified model, the sound waves the speaker produces can be modeled as a cylindrical pipe with one end closed that travel through the air at a velocity of
How long would it take for a 30Hz beat to reach an audience member 100m away when the ambient temperature is 21ºC?
. If the tension on the string is increased by a factor of four, at what speed does the wave travel?