Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 5, Problem 3CQ
To determine
Whether the piano tuner should tighten or loosen the string if initially three beats per second are heard and then six beats per second are heard on tightening the string.
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Integrated Science
Ch. 5.1 - The time required for a vibrating object to...Ch. 5.1 - Prob. 2SCCh. 5.1 - Prob. 3SCCh. 5.2 - A longitudinal mechanical wave causes particles of...Ch. 5.2 - Prob. 5SCCh. 5.2 - Prob. 6SCCh. 5.2 - Prob. 7SCCh. 5.3 - Prob. 8SCCh. 5.4 - Prob. 9SCCh. 5.6 - Prob. 10SC
Ch. 5.6 - Prob. 11SCCh. 5.6 - Prob. 12SCCh. 5 - What is a wave?Ch. 5 - Prob. 2CQCh. 5 - Prob. 3CQCh. 5 - Why do astronauts on the moon have to communicate...Ch. 5 - Prob. 5CQCh. 5 - Prob. 6CQCh. 5 - Prob. 7CQCh. 5 - Prob. 8CQCh. 5 - Prob. 9CQCh. 5 - Prob. 10CQCh. 5 - Prob. 11CQCh. 5 - Prob. 12CQCh. 5 - Prob. 13CQCh. 5 - What are the significant similarities and...Ch. 5 - Sometimes it is easier to hear someone speaking in...Ch. 5 - Prob. 16CQCh. 5 - Prob. 17CQCh. 5 - Prob. 18CQCh. 5 - Prob. 19CQCh. 5 - Why is it not a good idea for a large band to...Ch. 5 - Prob. 1PEACh. 5 - Prob. 2PEACh. 5 - Prob. 3PEACh. 5 - Prob. 4PEACh. 5 - Prob. 5PEACh. 5 - Prob. 6PEACh. 5 - Prob. 7PEACh. 5 - Prob. 8PEACh. 5 - Prob. 1PEBCh. 5 - Prob. 2PEBCh. 5 - Prob. 3PEBCh. 5 - Prob. 4PEBCh. 5 - The following sound waves have what velocity? a....Ch. 5 - Prob. 6PEBCh. 5 - Prob. 7PEBCh. 5 - Prob. 8PEB
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- The 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 tuning fork is known to vibrate with frequency 262 Hz. When it is sounded along with a mandolin siring, four beats are heard every second. Next, a bit of tape is put onto each line of the tuning fork, and the tuning fork now produces five beats per second with the same mandolin siring. What is the frequency of the string? (a) 257 Hz (b) 258 Hz (c) 262 Hz (d) 266 Hz (e) 267 Hzarrow_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
- A steel wire with mass 25.0 g and length 1.35 m is strung on a bass so that the distance from the nut to the bridge is 1.10 m. (a) Compute the linear density of the string. (b) What velocity wave on the string will produce the desired fundamental frequency of the E1 string, 41.2 Hz? (c) Calculate the tension required to obtain the proper frequency. (d) Calculate the wavelength of the strings vibration. (e) What is the wave-length of the sound produced in air? (Assume the speed of sound in air is 343 m/s.)arrow_forwardA 512-Hz tuning fork is struck and placed next to a tube with a movable piston, creating a tube with a variable length. The piston is slid down the pipe and resonance is reached when the piston is 115.50 cm from the open end. The next resonance is reached when the piston is 82.50 cm from the open end. (a) What is the speed of sound in the tube? (b) How far from the open end will the piston cause the next mode of resonance?arrow_forwardWhen two tuning forks are sounded at the same time, a beat frequency of 5 Hz occurs. If one of the tuning forks has a frequency of 245 Hz, what is the frequency of the other tuning fork? (a) 240 Hz (b) 242.5 Hz (c) 247.5 Hz (d) 250 Hz (e) More than one answer could be correct.arrow_forward
- The most soaring vocal melody is in Johann Sebastian Bach's Mass in B Minor. In one section, the basses, tenors. altos, and sopranos carry the melody from a low D to a high A. In concert pitch, these notes are now assigned frequencies of l 46.8 Hz and 880.0 Hz. Find the wave lengths of (a) the initial note and (b) the final note. Assume the chorus sings the melody with a uniform sound level of 75.0 dB. Find the pressure amplitudes of (c) the initial note and (d) the final note. Find the displacement amplitudes of (e) the initial note and (f) the final note.arrow_forwardA person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 30.0 dB. The hearing aid picks up sound having a frequency of 250 Hz at an intensity of 3.0 1011 W/m2. What is the intensity delivered to the eardrum?arrow_forwardAn ambulance moving at 42 m/s sounds its siren whose frequency is 450 Hz. A car is moving in the same direction as the ambulance at 25 m/s. What frequency does a person in the car hear (a) as the ambulance approaches the car? (b) Alter the ambulance passes the car?arrow_forward
- Suppose all six equal-length strings of an acoustic guitar are played without fingering, that is, without being pressed down at any frets. What quantities are the same for all six strings? Choose all correct answers. (a) the fundamental frequency (b) the fundamental wavelength of the siring wave (c) the fundamental wavelength of the sound emitted (d) the speed of the string wave (e) the speed of the sound emittedarrow_forwardA siren mounted 011 the roof of a firehouse emits sound at a frequency of 900 Hz. A steady wind is blowing with a speed of 15.0 m/s. Taking the speed of sound in calm air to be 343 m/s. find the wavelength of the sound (a) upwind of the siren and (b) downwind of the siren. Firefighters are approaching the siren from various directions at 15.0 m/s. What frequency does a firefighter hear (c) if she is approaching from an upwind position so that site is moving in the direction in which the wind is blowing and (d) if she is approaching from a downwind position and moving against the wind?arrow_forward
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