College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 17, Problem 56PE
The frequencies to which the ear responds vary by a factor of 103. Suppose the speedometer on your car measured speeds differing by the same factor of 103, and the greatest speed it reads is 90.0 mi/h. What would be the slowest nonzero speed it could read?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A bat uses echolocation to detect prey as small as about 1 wavelength of the sound of a bat call. Assume a bat produces a sound with a frequency of 60.9 kHz, and the speed of sound in air is 339 m/s. What is the length in mm of the smallest prey the bat can detect?
The human ear can respond to an extremely large range of intensities - the quietest sound the ear can hear is smaller than
10-20 times the threshold which causes damage after brief exposure.
If you could measure distances over the same range with a single instrument, and the smallest distance you could measure was 1 mm, what would the largest be, in kilometers?Numeric : A numeric value is expected and not an expression.L = __________________________________________
a bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the bat makes. if bats emit a chirp at a frequency of 20.2 kHz and the speed of sound in air is 323 m/s, what is the smallest insect a bat can detect? answer in units of mm
Chapter 17 Solutions
College Physics
Ch. 17 - How do sound vibrations of atoms differ from...Ch. 17 - When sound passes from one medium to another where...Ch. 17 - Six members at a synchronized swim team weal...Ch. 17 - A community is concerned about a plan to bring...Ch. 17 - Is the Doppler shift real or just a sensory...Ch. 17 - Due to eficiency considerations related to its bow...Ch. 17 - When you hear a sonic boom, you often cannot see...Ch. 17 - How does an unamplified guitar produce sounds so...Ch. 17 - You are given two wind instruments of identical...Ch. 17 - What is the difference between an overtone and a...
Ch. 17 - Why can a hearing test show that your threshold of...Ch. 17 - If audible sound follows a rule of thumb similar...Ch. 17 - Elephants and whales are known to use infrasound...Ch. 17 - It is more difficult to obtain a high—resolution...Ch. 17 - Suppose you read mat 210dB ultrasound is being...Ch. 17 - When poked by a spear, an operatic soprano lets...Ch. 17 - What frequency sound has a 0.10m wavelength when...Ch. 17 - Calculate the speed of sound on a day when a 1500...Ch. 17 - (a) What is the speed of sound in a medium where a...Ch. 17 - Show mat the speed of sound in 20.0°C air is 343...Ch. 17 - Air temperature in the Sahara Desert can reach...Ch. 17 - Dolphins make sounds in air and water. What is the...Ch. 17 - A sonar echo returns to a submarine 1.20 s after...Ch. 17 - (a) If a submarine’s sonar can measure echo times...Ch. 17 - A physicist a1 a fireworks display times the lag...Ch. 17 - Suppose a bat uses sound echoes to locate its...Ch. 17 - What is the intensity in watts per meter squared...Ch. 17 - The warning tag on a lawn mower states that it...Ch. 17 - A sound wave traveling in 20°C air has a pressure...Ch. 17 - What intensity level does the sound in the...Ch. 17 - What sound intensity level in dB is produced by...Ch. 17 - Show that an intensity of 1012 W/m2 is the same as...Ch. 17 - (a) What is the decibel level of a sound that is...Ch. 17 - (a) What is the intensity of a sound that has a...Ch. 17 - (a) How much more intense is a sound that has a...Ch. 17 - People with good hearing can perceive sounds as...Ch. 17 - If a large housefly 3.0 m away from you makes a...Ch. 17 - Ten cars in a circle at a boom box competition...Ch. 17 - The amplitude of a sound wave is measured in terms...Ch. 17 - If a sound intensity level of 0 dB at 1000 Hz...Ch. 17 - An 8hour exposure to a sound intensity level of...Ch. 17 - (a) Ear trumpets were never very common, but they...Ch. 17 - Sound is more effectively transmitted into a...Ch. 17 - Loudspeakers can produce intense sounds with...Ch. 17 - (a) What frequency is received by a person...Ch. 17 - (a) At an air show a jet flies directly toward the...Ch. 17 - What frequency is received by a mouse just before...Ch. 17 - A spectator at a parade receives an 888-Hz tone...Ch. 17 - A commuter train blows its 200Hz horn as it...Ch. 17 - Can you perceive the shift in frequency produced...Ch. 17 - Two eagles fly directly toward one another. The...Ch. 17 - What is the minimum speed at which a source must...Ch. 17 - A “showy" custom—built car has two brass horns...Ch. 17 - What beat frequencies will be present: (a) If the...Ch. 17 - What beat frequencies result if a piano hammer...Ch. 17 - A piano tuner hears a heat every 2.00 s when...Ch. 17 - (a) What is the fundamental frequency of a...Ch. 17 - If a wind instrument, such as a tuba, has a...Ch. 17 - What are the first three overtones of a bassoon...Ch. 17 - How long must a fiute be in order to have a...Ch. 17 - What length should an oboe have to produce a...Ch. 17 - What is the length of a tube that has a...Ch. 17 - (a) Find the length of an organ pipe closed at one...Ch. 17 - By what fraction will the frequencies produced by...Ch. 17 - The ear canal resonates like a tube closed at one...Ch. 17 - Calculate the first overtone in an ear canal,...Ch. 17 - A crude approximation at voice production is to...Ch. 17 - (a) Students in a physics lab are asked to find...Ch. 17 - What frequencies will a 1.80-m—long tube produce...Ch. 17 - The factor of 1012 in the range of intensities to...Ch. 17 - The frequencies to which the ear responds vary by...Ch. 17 - What are the closest frequencies to 500 Hz that an...Ch. 17 - Can the average person tell that a 2002-Hz sound...Ch. 17 - If your radio is producing an average sound...Ch. 17 - Can you tell that your roommate turned up the...Ch. 17 - Based on the graph in Figure 17.36, what is the...Ch. 17 - What sound intensity levels must sounds of...Ch. 17 - What is me approximate sound intensity level in...Ch. 17 - (a) What are the loudnesses in phons of sounds...Ch. 17 - Suppose a person has a 50—UB hearing loss at all...Ch. 17 - If a woman needs an amplification of 5.01012 times...Ch. 17 - (a) What is the intensity in watts per meter...Ch. 17 - (a) Find the intensity in watts per meter squared...Ch. 17 - A person has a hearing threshold 10 dB above...Ch. 17 - A child has a hearing loss of 60 dB near 5000 Hz,...Ch. 17 - What is the ratio of intensi?es of two sounds of...Ch. 17 - What is the sound intensity level in decibels of...Ch. 17 - Is 155—dB ultrasound in the range at intensities...Ch. 17 - Find the sound intensity level in decibels of...Ch. 17 - The time delay between transmission and the...Ch. 17 - In the clinical use of ultrasound, transducers are...Ch. 17 - (a) Calculate the minimum frequency of ultrasound...Ch. 17 - (a) Find the size of the smallest detail...Ch. 17 - (a) Echo times are measured by diagnostic...Ch. 17 - (a) How far apart are two layers of tissue that...Ch. 17 - (a) A bat uses ultrasound to find its way among...Ch. 17 - A dolphin is able to tell in the dark that the...Ch. 17 - A diagnostic ultrasound echo is re?ected from...Ch. 17 - Ultrasound reflected from an oncoming bloodstream...
Additional Science Textbook Solutions
Find more solutions based on key concepts
8. A 1000 kg car pushes a 2000 kg truck that has a dead battery. When the driver steps on the accelerator, the ...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Radio waves transmitted through empty space at the speed of light (v=c=3.00108m/s) by the Voyager spacecraft ha...
University Physics Volume 1
1. a. Can a vector have nonzero magnitude if a component is zero? If no, why not? If yes, give an example.
b. C...
College Physics: A Strategic Approach (3rd Edition)
11. If you put your hand into boiling water at 212°F, you will immediately get a serious bum. Yet you readily r...
College Physics (10th Edition)
Suppose that a rectangular toroid has 2000 windings and a self-inductance of 0.040 H. If h = 0.10 m, what is th...
University Physics Volume 2
Q22.1 A rubber balloon has a single point charge in its interior. Does the electric flux through the balloon de...
University Physics with Modern Physics (14th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A student drops a water-filled balloon from the roof of the tallest building in town trying to hit her roommate on the ground (who is too quick). The first student ducks back but hears the water splash 4.021 s after dropping the balloon. If the speed of sound is 331 m/s, find the height of the building, neglecting air resistance.arrow_forwardIn Bosnia, the ultimate test of a young nuns courage used to be to jump off a 400-year-old bridge (destroyed in 1993; rebuilt in 2004) into the River Neretva, 23 m below the bridge. (a) How long did the jump last? (b) How fan was the jumper traveling upon impact with the river? (c) If the speed of sound in air is 340 m/s, how long after the jumper took off did a spectator on the bridge hear the splash?arrow_forwardOn December 26, 2004, a great earthquake occurredoff the coast of Sumatra and triggered immense waves (tsunami) thatkilled more than 200,000 people. Satellites observing these waves fromspace measured 800 km from one wave crest to the next and a periodbetween waves of 1.0 hour. What was the speed of these waves in m>sand in km/h? Does your answer help you understand why the wavescaused such devastation?arrow_forward
- A screwdriver is dropped from the top of an elevator shaft. Exactly 5.0 seconds later, the sound of the screwdriver hitting bottom is heard. How deep is the shaft? The shaft is approximately (Round to the nearest tenth.) feet deep. Hint: The distance that a dropped object falls in t seconds is represented by the formula s = 16t². The speed of sound is 1100 ft/sec.arrow_forwardYou are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. You use your fog horn to send out a blast of sound (assume the temperature of the air is 20 oC) and the time it takes for the sound to return to you is 20.0 s. How far away are the cliffs (in metric units)? Hint: Be careful and think about the physics of the problem. You may want to make a sketch of the situation to help you determine the answer. 1798 m 3444 m 3596 m 7192 marrow_forwardYou are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. You use your fog horn to send out a blast of sound (assume the temperature of the air is 20 oC) and the time it takes for the sound to return to you is 20.0 s. How far away are the cliffs (in metric units)? Hint: Be careful and think about the physics of the problem. You may want to make a sketch of the situation to help you determine the answer. Question 6 options: 1798 m 3444 m 3596 m 7192 marrow_forward
- 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…arrow_forwardThere was an accident and NASA engineers are trying to sort out where two of their Mars Rovers, Tango and Foxtrot, have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at it's landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at it's landing site, where has each rover landed?arrow_forwardThere was an accident and NASA engineers are trying to sort out where two of their Mars Rovers (named 'Tango' and 'Foxtrot') have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at its landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at its landing site, where has each rover landed? Tango landed at site A while Foxtrot landed at site B. Tango landed at site B while Foxtrot landed at site A. Both Tango and Foxtrot landed at site A. O Both Tango and Foxtrot landed at site B.arrow_forward
- MTNSA-Take Care Mz. l N21% 10:51 PM Let a =i b=l and c=1.The quantity be wrthen witanhca ))? -ez+abex) partigular con in,a 7orm values andz.whot is the volve wz? to 07 w 首 A Note OCR Share More ...arrow_forwardThe coldest and hottest temperatures ever recorded in Switzerland are -43.2°F (231 K) and 106.7°F (315 K), respectively. What is the speed of sound in air (in m/s) at each temperature? speed of sound at -43.2°F m/s speed of sound at 106.7°F m/sarrow_forwardA car that is about to enter a tunnel and is moving at a top speed of 50.0 [kph]. To signal that the car is coming, the car driver blows a horn, producing a sound of some frequency. At that time, the temperature of the air is about 20.0°C. What is the speed of sound in air at this temperature? If the sound is reflected back by a wall at the opening of the tunnel, what is the ratio of the incident frequency and the received frequency heard by the car driver?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
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