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ID: 3308195 • Letter: D
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de View Favenites Tools Help For this ass gment, you ent rswersbyquesbon parts. The nunter of submssons "onarng breach qm1on ssignment Scoring Your last submission is used for your seore t only changes you sernt or charge ge anser the original waves differ Two waves traveling on a string in the same direction both have a frequency of 125 H, a wavelength of 2 cm, and an amplitude of 0.09 m. What is the amplitude of the resultant wave i by each of the following values? (a) m/o b) a/a The amgltude of the resultant wave can be determined by adding the two sinusoidal maves and applying the approprlate trigonomatric identity. The amplitude c consists of all the factors which do not vary with tim 1.11/560 A transverse wave of frequency 62 HE propagates down a string Two points 9 am apart are out of phase by m/b. (a) what is the wavelength of the wave? (b) At a given point, what is the phase erence bet"een two displacements for tines 5 ms apart? ) What is the wave velocity? mys termn of the separation of "e two poants and -aveth ofthe wave.v can nnd the pha. aference by ,mating the mne between dylacemeti to the-ted ore. se the relationshp between the speed, frequency, and wavelength of awave to nd its veloityExplanation / Answer
1. f= 125 Hz
lambda = 2cm = 0.02 m
A = 0.09 m
resultant amplitude, A = sqrt[ A^2 + A^2 + 2 A A cos(phi)]
A' = A sqrt[ 2 + 2 cos(theta)]
(A) theta = pi/6
A' = 0.174 m
(B) theta = pi/3
A' = 0.156 m
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