Which statement is true about voice?A.Voice uses a wider range of pitch and volume as compared to speaking.B. The greater the tenslon on the vocal chords, the lower the pitch.C. Women can produce a lower range of pitches as compared to men.D.African singers sit on the floor while singing

Voice is the sound produced by a human or animal.

Answered: Which statement is true about voice? A.…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1. Which of the following statement is the least accurate? a. Ultrasonic scalers convert sound waves into mechanical vibration. b. Rotary scalers convert air pressure into mechanical vibration. c.Sonic scalers convert air pressure into mechanical vibration. 2.All of the following statements are accurate except: a. a disadvantage is a transient loss of sensation to, and function of, the area being blocked. b. a disadvantage is the possibility of postoperative self-inflicted injury to soft tissues as a sequel to anesthesia c. an advantage is the ability to block entire quadrants. d. no special equipment is required. 3. Which of the following terms describes widespread inflammation of the oral mucosa? a. Pharyngitis b.Gingivitis c. Stomatitis d.Glossitis
4. During a typical workday (eight hours), the average sound intensity arriving at Larry's ear is 1.8 x 10- Wm. If the area of Larry's ear through which the sound passes is 2.1 x 10- m, what is the total energy entering each of Larry's ears during the workday? dy OLJ f5 64 f4 93 %
5. An organ pipe is 118 cm long. What is the third audible harmonic if the pipe is open at both ends? The speed of sound in air is 345 m/s. Hz 6 ccm cci16 c
3. A friend of yours is loudly singing a single note at 400 Hz while driving toward you at 25.0 m/s on a day when the speed of sound in air is 340 m/s. What frequency do hear? а. you b. What frequency does your friend hear if you suddenly start singing at 400 Hz?
Name 12. A radio speaker produces a loud sound that is heard by two people: a person sitting on a bench near the speaker, and a driver in a truck, The driver perceives the sound at a lower pitch than the person sitting on the bench. Which of the following best explains why the driver perceives the pitch of the sound to be lower? A. The driver is not close to the speaker. B. The driver is not moving fast enough. C. The driver is moving away from the speaker. D. The driver has the windows of the truck closed. 13, The table below shows characteristics of four sound waves. Characteristics of Four Sound Waves Frequency (Hz) Wavelength Intensity (m) Speed (m/s) Sound Wave (dB) W 160 2.13 80 341 264 1.29 120 341 Y 396 0.86 100 341 898 0.38 60 341 Based on the information in the table, which wave has the longest period? A. wave W B. wave X C. wave Y D. wave Z
You try to form standing waves in an air column by using a tuning fork. How would you know that you hit a resonance at a certain length? Select all the correct answers. Select one or more: a. The sound frequency would decrease b. The sound would get quieter c. The sound would get louder d. The sound frequency would increase
2. Suppose the intensity of sound of a jet during takeoff is 100 watts/m². What is the corresponding sound intensity in decibels? How much more intense is this sound than the least audible sound a human can hear? 3. A 1-liter solution contains 10-8 moles of hydrogen ions. Determine whether the solution is acidic, neutral, or basic.
If a 70 cm long guitar string produces a fundamental frequency of 250 Hz. What is the frequency of fourth harmonics? а. 250 Hz b. 350 Hz C. 1000 Hz d. 750 Hz
If you are playing a non-harmonic or percussion instrument and you change the number of overtones of a note, you will: A. Make the pitch sound higher. B. It is hard to say because most percussion instruments don’t have a strong sense of pitch in the first place. C. Change the pitch of the note. D. Lose all sense of pitch.
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10. The sound intensity 5 meters from a point source is 0.5 mW/cm². The power output of the source is: A. 0.125 kW B. 0.39 kW C. 0.79 kW D. 1.6 kW E. 2.6 kW
What are the three audible frequency ranges?Select the correct response:a.Subsonic, sonic, and supersonicb. Infrasonic, sonic and ultrasonicc. Infrasonic, subsonic and ultrasonicd. Infrasonic, subsonic and supersonic

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Which statement is true about voice? A. Voice uses a wider range of pitch and volume as compared to speaking. B. The greater the tenslon on the vocal chords, the lower the pitch. C. Women can produce a lower range of pitches as compared to men. D. African singers sit on the floor while singing