Question

Twin 3. (2 pts) The tension force in a wire is 160 N when it is stretched between two fixed points 0.8 meters apart. The mass per unit length of the wire is 2.5 x 10-4 kg/m. A standing wave pattern having 5 antinodes is observed. Find: (a) the wave speed on the string, (b) the wavelength of observed standing wave, and (c) the frequency of the oscillation. PON S m m = 25X104 .8*2.564 = 2006-LX9.8 = 1.96E-3N (a) v=_800 ml 1,=2(8)=1.6 V=JF/M/L) = 160%.5+104 =800. (b) = 1.6 (c)f= 500 Hz Xn=1 = 1.6 =.32 CV-800 - GOOH T2500 HZ 4. (2 pts) Sketch below shows the standing wave pattern of the displacement of air within a pipe L = 1.4 m long. Pipe is open at the left end and closed at the right end. The speed of sound in the pipe is 340 m/s. Looking at the sketch, determine the following parameters for the SW sound pattern shown: (a) Wavelength 2 = 5.6 (b) Frequency f= 60.7_, and (c) Harmonic number, n= V = 340 ms x = 4x1.4 = 5.6 340 m/s = (5.6) f f = 60.7

please answer both questions

Answer 1

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