Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Chapter 6, Problem 21Q
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To explain:
A boat is producing a bow wave as it moves over the water.
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In our model of sound we found (in a homework assignment) that the
maximum molecular displacement sm, for sound in air, is much smaller than the
distance between neighboring air molecules. From this fact we learn .. (circle the
best answer)
(a) ... that the validity of the model has broken down.
(b) ... that sm describes the average position of very many molecules and is mean-
ingful even when this is smaller than the microscopic scale of the material.
(c) ... that apparently what matters is the tiny fraction of molecules that happen to
be very close to others.
(d) ... that some of what gets taught in 2214 is a gross oversimplification and falls
apart under more careful scrutiny.
A sound wave in the air has a frequency of 405 Hz. What is the wave length? Calculate for a sound wave with a frequency of 485 Hz.
I am really struggling putting together the formulas. :(
In the upper atmosphere at altitudes where commercial airlines travel, we find extremely cold tempera-tures. What is the speed of sound (in metric units) for a temperature of -55 ◦ C? Calculate to one decimal.
Chapter 6 Solutions
Inquiry into Physics
Ch. 6 - An astronomer measures the speed of recession of a...Ch. 6 - Prob. 2AACh. 6 - Prob. 1MACh. 6 - Prob. 1PIPCh. 6 - Prob. 2PIPCh. 6 - Prob. 1MIOCh. 6 - Prob. 1QCh. 6 - (Indicates a review question, which means it...Ch. 6 - (Indicates a review question, which means it...Ch. 6 - (Indicates a review question, which means it...
Ch. 6 - Prob. 5QCh. 6 - Prob. 6QCh. 6 - (Indicates a review question, which means it...Ch. 6 - Prob. 8QCh. 6 - Prob. 9QCh. 6 - Prob. 10QCh. 6 - Prob. 11QCh. 6 - Prob. 12QCh. 6 - (Indicates a review question, which means it...Ch. 6 - Prob. 14QCh. 6 - (Indicates a review question, which means it...Ch. 6 - (Indicates a review question, which means it...Ch. 6 - Prob. 17QCh. 6 - (Indicates a review question, which means it...Ch. 6 - Prob. 19QCh. 6 - Prob. 20QCh. 6 - Prob. 21QCh. 6 - (Indicates a review question, which means it...Ch. 6 - Prob. 23QCh. 6 - Prob. 24QCh. 6 - Prob. 25QCh. 6 - Prob. 26QCh. 6 - Prob. 27QCh. 6 - Prob. 28QCh. 6 - Prob. 29QCh. 6 - (Indicates a review question, which means it...Ch. 6 - Prob. 31QCh. 6 - Prob. 32QCh. 6 - Prob. 33QCh. 6 - Prob. 34QCh. 6 - Prob. 35QCh. 6 - Prob. 36QCh. 6 - (Indicates a review question, which means it...Ch. 6 - Prob. 38QCh. 6 - Prob. 39QCh. 6 - Two children stretch a jump rope between them and...Ch. 6 - The force stretching the D string on a certain...Ch. 6 - What is the speed of sound in air at the normal...Ch. 6 - The coldest and hottest temperatures ever recorded...Ch. 6 - A 4-Hz continuous wave travels on a S1ink. If the...Ch. 6 - A 500-Hz sound trave1s through pure oxygen. The...Ch. 6 - Prob. 7PCh. 6 - What frequency of sound traveling in air at 20°C...Ch. 6 - Prob. 9PCh. 6 - . What is the wavelength of 3.5 million Hz...Ch. 6 - . The frequency of middle C on the piano is 261.6...Ch. 6 - . A cable with total length 30 m and mass 100 kg...Ch. 6 - . In a student laboratory exercise, the wavelength...Ch. 6 - . A 1,720-Hz pure tone is played on a stereo in an...Ch. 6 - . A person stands directly in front of Iwo...Ch. 6 - . Ultrasound probes can resolve structural details...Ch. 6 - . A sonic depth gauge is placed 5 m above the...Ch. 6 - . The huge volcanic eruption on the island of...Ch. 6 - . A baseball fan sitting in the cheap seals” is...Ch. 6 - . A geologist is camped 8,000 m (5 miles) from a...Ch. 6 - . A person stands at a point 300 m in front of the...Ch. 6 - . A sound pulse emitted underwater reflects off a...Ch. 6 - . The sound level measured in a room by a person...Ch. 6 - . Approximately how many times louder is a 100-dB...Ch. 6 - Prob. 25PCh. 6 - . The frequency of the highest note on the piano...Ch. 6 - Prob. 1CCh. 6 - Prob. 2CCh. 6 - Jack and Jill go for a walk along an abandoned...Ch. 6 - Prob. 4CCh. 6 - An entrepreneur decides to invent and market a...Ch. 6 - Prob. 6CCh. 6 - Prob. 7CCh. 6 - The frequency of the lowest note played on a flute...Ch. 6 - Prob. 9C
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- For a bathroom that is 6 m long x 3 m wide x 2.5 m high, calculate the frequency of Room Mode 1 0 0 Answer in numbers only, no units. Use 3 significant digits. (Keep track of calculations that will be reused to make this quiz easier.). Need typed solution plz.arrow_forwardtransversc obscrued be moving along wave is to lengthy rope with wove length ond 0.06 Hz OF 2.4 m Frequenay bc described by The transuersC OF ropes particles ais ploce men+ the can the equati on y (x,t) = A cos Lwt - Kx) and SOm observed that the mexi mum transuerst dis plocement IF about 1.Sm. a.) complete the equotion op by determining the Frequenay, and the wOue amplitude Wove speed ongular wave number the wave. b.) displacement oF the porticle at Find the trans verse 0.5 m at 2.0 s. c.) Find uclo city oF the partice at x=0.5 m the at te 2.0s. d.) Find the accelera tion OF the porticle at 1 • 0.5 at t= 2,05arrow_forwardWhat is the wavelength of the sound emitted by an airplane flying at an elevation of 12192 meters (or 40,000 feet) where the temperature is -55.3°C? The frequency of the noise from the engines is 106.4 Hz. Express answer to two decimal places.arrow_forward
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