Physics, 04.07.2019 20:00 jefarmjefarm9659

Asound wave has a frequency of 1930 hertz. all sound waves in air travel at 323 m/s. find the wavelength of the sound wave

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Answer from: kayli2582

0.167 m

Explanation:

By the definition of the velocity if a wave ,

The velocity of light, v, is the product of its wavelength, λ , and its frequency, f.

V= fλ

frequency - number of occurances in a unit time

Wavelength - distance between corresponding points of two consecutive waves

(check the graph for wavelength)

$velocity=frequency*wave.length\\wave.length=\frac{velocity}{frequency}\\ =\frac{323}{1930}\\ =0.167m$

Asound wave has a frequency of 1930 hertz. all sound waves in air travel at 323 m/s. find the wavele

Answer from: Quest

work: w = fd (given)

work done by chet =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

Answer from: Quest

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Asound wave has a frequency of 1930 hertz. all sound waves in air travel at 323 m/s. find the wavele...