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BIO The Vocal Tract. Many opera singers (and some pop singers) have a range of about
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- A harmonic transverse wave function is given by y(x, t) = (0.850 m) sin (15.3x + 10.4t) where all values are in the appropriate SI units. a. What are the propagation speed and direction of the waves travel? b. What are the waves period and wavelength? c. What is the amplitude? d. If the amplitude is doubled, what happens to the speed of the wave?arrow_forwardThe windpipe of a typical whooping crane is about 4.1 ft long. What is the lowest resonant frequency of this pipe, assuming that it is closed at one end? Assume a temperature of 40°C. Hz Need Help? Read Itarrow_forwardViolin's A-string is tuned to 440 Hz and its linear density is 7.2 x 10·4 kg/m. ff the length of the string in vibration (measured from the upper end of the fingerboard to the bridge, both ends are fixed.) is 33 cm, A.What is the tension in the A-string? B.What must the linear density of D-string (297 Hz) be so that the tension is the same as A-string? C.The sound level at ad istance of 3 .00 m from a source is 120 dB. At what distance is the sound level 80 dB?arrow_forward
- The windpipe of a typical whooping crane is about 4.6 ft long. What is the lowest resonant frequency of this pipe, assuming that it is closed at one end? Assume a temperature of 34°C. ?Hzarrow_forwardOne end of a horizontal string is attached to a small-amplitude mechanical 60.0-Hz oscillator. The string's mass per unit length is 3.9 × 10 4kg/m. The string passes over a pulley, a distance l = 1.50 m away, and weights are hung from this end. Assume the string at the oscillator is a node, which is nearly true. (Figure 1) Figure Oscillator -1.50 m- m 1 of 1 What mass m must be hung from this end of the string to produce one loop of a standing wave? Express your answer to two significant figures and include the appropriate units. m1 = Submit Part B m₂ = Submit Part C ☐ m5 = μÅ What mass m must be hung from this end of the string to produce two loops of a standing wave? Express your answer to two significant figures and include the appropriate units. µÅ Submit Value Request Answer Value Request Answer µÅ Units What mass m must be hung from this end of the string to produce five loops of a standing wave? Express your answer to two significant figures and include the appropriate units.…arrow_forwardThe overall length of a piccolo is 32.0 cm. The resonating air column vibrates as in a pipe that is open at both ends. Assume the speed of sound is 343 m/s. d. Opening holes in the side effectively shortens the length of the resonant column. If the highest note a piccolo can sound is 4 000 Hz, find the distance between adjacent antinodes for this mode of vibration. Hint: The ends of the piccolo are antinodes in air movement.arrow_forward
- a. A person who has just inhaled helium gas speaks with a high pitched voice. Discuss why this happens given that your larynx and other parts of your repiratory passages act rather like a resonance tube, with your vocal chords producing the necessary energy to vibrate the air.arrow_forwardA 16-kg object hangs in equilibrium from a string of total length L = 5.0 m and linear mass density = 0.0028 kg/m. The string is wrapped around two light, frictionless pulleys that are separated by the distance d = 2.0 m (Fig. a). (a) Determine the tension in the string. N (b) (b) At what frequency must the string between the pulleys vibrate in order to form the standing-wave pattern shown in Figure (b)? Hzarrow_forwardA tube with both ends open to the air has a variable length. The air temperature is 22 degrees c. In the same room, there's a string that is tight between an oscillator at one end and a fixed end at the other. The string has a length of 1.5 m, a linear mass density of 0.008 kg/m and a tension of 120 N. The frequency is such that the string is oscillating with the third harmonic. If we want the air in the tube to oscillate with the third harmonic as well and have the same frequency as the string oscillator, what should the length of the tube be?arrow_forward
- One end of a horizontal string is attached to a small- amplitude mechanical 60.0-Hz oscillator. The string's mass per unit length is 3.2 x10-4kg/m. The string passes over a pulley, a distance l = 1.50 m away, and weights are hung from this end. Assume the string at the oscillator is a node, which is nearly true. (Figure 1) Figure Oscillator -1.50 m 1 of 1 m What mass m must be hung from this end of the string to produce one loop of a standing wave? Express your answer to two significant figures and include the appropriate units. m1 = Submit Part B m2 = μA Value O Request Answer What mass m must be hung from this end of the string to produce two loops of a standing wave? Express your answer to two significant figures and include the appropriate units. μA Units Value ? Units ?arrow_forwardWorld-renowned bluegrass musician, Frog Newton, has invited you to join his band. It is apparent that he is only looking for eye-candy on the stage, because you are only asked to play one note, the C at a frequency of 525 Hz. You make your own instrument using a string that is 0.5 meters long and has a mass of 2 grams. Now you need to calculate the necessary tension on the string, And you will be ready to jam! What is the wavelength of the first harmonic (also called the fundamental frequency) of standing wave created by the vibrating string m Submit Answer Tries 0/2 At what speed would a wave propagate on this string? m/s Submit Answer Tries 0/2 What is the linear density of the string? kg/m Submit Answer Tries 0/2 What is the tension needed to produce the C note?arrow_forward13 = 342 237. € X Your response differs from the correct answer by more than 10%. Double check your calculations. m (c) Suppose the wire is carbon steel with a density of 7.89 x 10³ kg/m³, a cross-sectional area A = 2.68 x 10-7 m², and an elastic limit of 2.50 x 108 Pa. Find the fundamental frequency if the wire is tightened to the elastic limit. Neglect any stretching of the wire (which would slightly reduce the mass per unit length). Hz EXERCISE HINTS: GETTING STARTED I I'M STUCK! (a) Find the fundamental frequency and second harmonic if the tension in the wire is increased to 118 N. (Assume the wire doesn't stretch or break.) ffundamental = Hz f2nd harmonic= Hz (b) Using a sound speed of 342 m/s, find the wavelengths of the sound waves produced. λ (larger) = 2.00 X Follow the example. Once you have computed the correct fundamental frequency, you should be able to determine the wavelengths of the sound waves. m > (smaller) = 1.00 X Follow the example. Once you have computed the…arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning