Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 23, Problem 55SP
What is the amplitude of vibration in a 8000 Hz sound beam if its intensity level is 62 dB? Assume that the air is at 15 °C and its density is
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Chapter 23 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 23 - 22. Three seconds after a gun is fired, the person...Ch. 23 - 23. What is the speed of sound in air when the air...Ch. 23 - 24. A longitudinal wave with a frequency of 100 Hz...Ch. 23 - 25. If the speed of sound in air is found to be...Ch. 23 - 26. An autofocusing camera sends out a pulse of...Ch. 23 - 27. It’s often claimed that for every second of...Ch. 23 - 28. A shell fired at a target 800 m away was heard...Ch. 23 - 29. In an experiment to determine the speed of...Ch. 23 - 23.30 [II] A disk has 40 holes around its...Ch. 23 - 23.31 [I] The bulk modulus of seawater is 2.1 GPa....
Ch. 23 - 32. Use Eq. (23.2) to determine the approximate...Ch. 23 - 33. Compute the speed of sound in helium gas at...Ch. 23 - 23.34 [II] Determine the speed of sound in carbon...Ch. 23 - 23.35 [II] Compute the molecular mass M of a gas...Ch. 23 - 23.36 [II] At S.T.P., the speed of sound in air is...Ch. 23 - Prob. 37SPCh. 23 - 23.38 [II] A bar of dimensions and mass 2.00 kg...Ch. 23 - 39. Find the speed of compression waves in a metal...Ch. 23 - Prob. 40SPCh. 23 - 23.41 [I] The level of normal speech exchanged...Ch. 23 - 42. The threshold of human hearing is an intensity...Ch. 23 - 23.43 [II] A machine produces a sound level of 80...Ch. 23 - 44. Suppose the intensity of sound increases by a...Ch. 23 - 45. If the intensity level of sound is to be...Ch. 23 - 46. Suppose we add ±3.0 dB to the intensity level...Ch. 23 - 23.47 [I] If the intensity of sound changes, the...Ch. 23 - 23.48 [I] Redo Problem 23.45 using Eq. (23.9).
Ch. 23 - 49. A sound has an intensity of 5.0 × 10−7 W/m2....Ch. 23 - 50. A person riding a power mower may be subjected...Ch. 23 - 23.51 [II] A rock band might easily produce a...Ch. 23 - 23.52 [II] A whisper has an intensity level of...Ch. 23 - 23.53 [II] What sound intensity is 3.0 dB louder...Ch. 23 - 23.54 [II] Calculate the intensity of a sound wave...Ch. 23 - 23.55 [II] What is the amplitude of vibration in a...Ch. 23 - 23.56 [II] One sound has an intensity level of...Ch. 23 - 23.57 [II] An organ pipe is tuned to emit a...Ch. 23 - 23.58 [I] A locomotive moving at 30.0 m/s...Ch. 23 - 23.59 [II] Two cars are heading straight at each...Ch. 23 - 23.60 [II] To determine the speed of a harmonic...Ch. 23 - 23.62 [II] The two sources shown in Fig. 23-4 emit...
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- A pipe is observed to have a fundamental frequency of 345 Hz. Assume the pipe is filled with air (v = 343 m/s). What is the length of the pipe if the pipe is a. closed at one end and b. open at both ends?arrow_forwardA sound wave traveling in air has a pressure amplitude of 0.5 Pa. What is the intensity of the wave?arrow_forwardAt t = 0, a transverse pulse in a wire is described by the function y=6.00x2+3.00 where xand y are in meters. If the pulse is traveling in the positive x direction with a speed of 4.50 m/s, write the function y(x, t) that describes this pulse.arrow_forward
- Some studies suggest that the upper frequency limit of hearing is determined by the diameter of the eardrum. The wavelength of the sound wave and the diameter of the eardrum are approximately equal at this upper limit. If the relationship holds exactly, what is the diameter of the eardrum of a person capable of hearing 20 000 Hz? (Assume a body temperature of 37.0C.)arrow_forwardThe bulk modulus of water is 2.2 109 Pa (Table 15.2). The density of water is 103 kg/m3 (Table 15.1). Find the speed of sound in water and compare your answer with the value given in Table 17.1.arrow_forwardTwo sinusoidal waves are moving through a medium in the same direction, both having amplitudes of 3.00 cm, a wavelength of 5.20 m, and a period of 6.52 s, but one has a phase shift of an angle . What is the phase shift if the resultant wave has an amplitude of 5.00 cm? [Hint: Use the trig identity sinu+sinv=2sin(u+v2)cos(uv2)arrow_forward
- Ultrasound of intensity 1.50102W/m2 is produced by the rectangular head of a medical imaging device measuring 3.00 cm by 5.00 cm. What is its power output?arrow_forwardThe area of a typical eardrum is about 5.00 X 10-5 m2. (a) (Calculate the average sound power incident on an eardrum at the threshold of pain, which corresponds to an intensity of 1.00 W/m2. (b) How much energy is transferred to the eardrum exposed to this sound lor 1.00 mill?arrow_forwardA flute has a length of 58.0 cm. If the speed of sound in air is 343 m/s, what is the fundamental frequency of the flute, assuming it is a tube closed at one end and open at the other? (a) 148 Hz (b) 296 Hz (c) 444 Hz (d) 591 Hz (e) none of those answersarrow_forward
- A transverse wave on a string has a wavelength of 5.0 m, a period of 0.02 s, and an amplitude of 1.5 cm. The average power transferred by the wave is 5.00 W. What is the tension in the string?arrow_forwardTwo sinusoidal waves are moving through a medium in the positive x-direction, both having amplitudes of 7.00 cm, a wave number of k=3.00 m-1, an angular frequency of =2.50 s-1, and a period of 6.00 s, but one has a phase shift of an angle =12 rad. What is the height of the resultant wave at a time t=2.00 s and a position x=0.53 m?arrow_forwardWrite an expression that describes the pressure variation as a function of position and time for a sinusoidal sound wave in air. Assume the speed of sound is 343 m/s, = 0.100 m, and Pmax = 0.200 Pa.arrow_forward
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What Are Sound Wave Properties? | Physics in Motion; Author: GPB Education;https://www.youtube.com/watch?v=GW6_U553sK8;License: Standard YouTube License, CC-BY