Physics, 18.12.2019 19:31 kuehlthau03
One brand of dog whistles claims a frequency of 25 khz for its product. what is the wavelength of this sound? (the speed of sound in air is 343 m/s)
0.01372 m
0.02181 m
0.01748 m
0.011654 m
Answers: 3
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Can someone explain to me how to do this problem ?
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What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body
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The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.
Answers: 2
One brand of dog whistles claims a frequency of 25 khz for its product. what is the wavelength of th...
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