Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Chapter 6, Problem 32Q
To determine
To explain:
The three categories which are used to describe our mental perception of a sound wave.
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NOTE: for this question, give all answers with 4 significant figures.
A motion detector measures distance to the nearest object by using a speaker and a microphone. The
speaker clicks 30 times a second. The microphone detects the sound bouncing back from the nearest object
in front of it. The computer calculates the time delay between the making of the sound and receiving the
echo. It knows the speed of sound (about 343 m/s at room temperature) and from that, it can calculate the
distance to the object from the time delay.
A. If the nearest object in front of the detector is too far away, the echo will not get back before a second click is emitted. Once that
happens, the computer has no way of knowing that the echo isn't an echo from the second click and the detector doesn't give correct
results anymore. Once the speaker emits a click, how much time does the echo have to return to the microphone before the next click
is emitted?
0.03333
What's the furthest away the object can be so…
The highest frequency that we can hear is about 20 kHz (2x 10^4Hz). a) Calculate the wavelength (m) associated with this frequency for sound that travels at 345 m/s. b) How long is this in feet? (Roundanswers to the nearest tenth.
Show the complete solution to the following
problem.
At one atmospheric pressure and at a temperature
of 0°C, the speed of sound in air is 33, 145 cm/s.
This speed increases by 60 cm/s for each degree
centigrade rise in temperature. Determine the speed
of sound in air in Sl units at an altitude of 12.5 miles
above sea level where the temperature is -62 °F.
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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