A cord has two sections with linear densities of 0.10 kg/mand 0.20 kg/m, the figure(Figure 1). An incident wave, givenby D = (0.050 m) sin(7.5z - 12.0t), where I is in metersand + in seconds, travels along the lighter cord.What is the wavelength on the lighter section of the cord?Express your answer using two significant figures.ΟΙ ΑΣΦSubmitRequest AnswerPart BWhat is the tension in the cord?Express your answer using two significant figures.FT=ΜΕ ΑΣΦSubmitRequest AnswerPart C??mNWhat is the wavelength when the wave travels on the heavier section?Express your answer using two significant figures. FigureP₁ = 0.10 kg/m<1 of 1>D= (0.050 m) sin(7.5 x - 12.0 t)H2 = 0.20 kg/m

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Answered: A cord has two sections with linear…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 61P: A copper wire has a density of =8920 kg/m3, a radius of 1.20 mm, and a length L. The wire is held...

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Consider two waves y1(x,t) and y2(x,t) that are identical except for a phase shift propagating in the same medium. (a)What is the phase shift, in radians, if the amplitude of the resulting wave is 1.75 times the amplitude of the individual waves? (b) What is the phase shift in degrees? (c) What is the phase shift as a percentage of the individual wavelength?
(a) If a submarine’s sonar can measure echo times with a precision of 0.0100 s, what is the smallest difference in distances it can detect? (Assume that the submarine is in the ocean, not in fresh water.) (b) Discuss the limits this time resolution imposes on the ability of the sonar system to detect the size and shape of the object creating the echo.
(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, geologists compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)
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A string on the violin has a length of 23.00 cm and a mass of 0.900 grams. The tension in the string 850.00 N. The temperature in the room is TC=24.00C . The string is plucked and oscillates in the n=9 mode. (a) What is the speed of the wave on the string? (b) What is the wavelength of the sounding wave produced? (c) What is the frequency of the oscillating string? (d) What is the frequency of the sound produced? (e) What is the wavelength of the sound produced?
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