Oscillator Type Question: A ship uses a horn to signal to other ships. The horn emits a soun intensity measuring 120 dB at 1 m using a point detector, with a frequency of 150 Hz. The horn is at approximately sea level at a temperature of 10°C. a. If the reference intensity of sound in air is 1 pW/m², what is the total power of the horn? b. If the ambient sound of the ocean is about 50 dB, at what distance will the horn be difficult to he How long will it take the sound of the horn to cover this distance if the air is mainly N2 with a molar mass of 28 g/mol and an adiabatic ratio of 7/5? C.

Oscillator Type Question: A ship uses a horn to signal to other ships. The horn emits a soun intensity measuring 120 dB at 1 m using a point detector, with a frequency of 150 Hz. The horn is at approximately sea level at a temperature of 10°C. a. If the reference intensity of sound in air is 1 pW/m², what is the total power of the horn? b. If the ambient sound of the ocean is about 50 dB, at what distance will the horn be difficult to he How long will it take the sound of the horn to cover this distance if the air is mainly N2 with a molar mass of 28 g/mol and an adiabatic ratio of 7/5? C.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: A single dog barks at a sound intensity level of β = 88 dB. a. Another dog runs up beside the first…

Q: A harpsichord string has a length of 0.5 m and a mass of 0.02 kg. a) What is the linear density of…

Q: An observer at the origin places 2 speakers. Speaker 1 - (50 W speaker at 5 m) and Speaker 2 -…

Q: A sound source that radiates equally in all directions has an intensity of 48 dB at a distance of 23…

A: (a) Let L1 denotes the intensity level at distance r1, I1 denotes the intensity, I0 denotes the…

Q: A tube, closed at one end and open at the other, vibrates at room temperature of 20 Celsius with a…

A: Given data The fundamental frequency of the tube is given as fn = 125 Hz. The room temperature is…

Q: What would be a suitable design sound level range for a Lunch Room in a factory according to…

A: Please see the next step for solution.

Q: ou have a tuning fork with a frequency of 257 Hertz. When you strike another tuning fork near it,…

A: frequency of first tuning fork (f) = 257 Hz frequency of second tuning fork = f' beat frequency = 4…

Q: A drum head has a diameter of 22.0 cm. The intensity of sound at the drum’s location due to a…

A: Solution - Power as the rate of doing work, it is the work done in unit time. Power is a scalar…

Q: Susan stands on the side of the road and observes a fire truck driving at 35 m/s. The truck turns on…

Q: Two side-by-side (virtually no separation) speakers are wired such that they emit a single-frequency…

Q: window with an area of 0.450 m2 receives 26.0 J of sound energy in 6.00 seconds. a. What is the…

Q: 6.00-m long rope is under a tension of 600 N. Waves travel along this rope at 40.0 m/s. What is the…

A: length of rope = L = 6 m tension = T = 600 N Speed = V = 40 m/s

Q: 4. While waiting to cross a set of railroad tracks you hear a distant train horn. The train's…

Q: Assume that the opening of the ear canal has a diameter of 7.0 mm. For this problem, you can ignore…

A: Given: Assume that the opening of the ear canal has a diameter of 7.0 mm. For this problem, you can…

Q: A 450 Hz sound wave in 20∘C air propagates into the water of a swimming pool. Assume that the wave's…

A: Frequency of wave doesnt depend on the medium it depend only on the source. wave's frequency in the…

Q: The Viking god of rock, Val Halen, has a guitar string with a linear mass density of 3.20x10-3 kg/m…

A: Linear mass density (m') = 0.0032 kgmLength (L) = 0.648 m n = 5 f5 = 725 Hz

Q: arks at a sound intensity level of β = 95 dB. a. Another dog runs up beside the first dog and…

Q: The D-string on a properly tuned guitar produces a tone with a fundamental frequency of 146.8 Hz.…

Q: The tension in a string is 2 20N and it's linear density is 0.9 kg/ m. A wave on the string travels…

A: Given Tension T=220 N Linear density u=0.9kg/m Amplitude A=4cm =0.04 m frequency f=15Hz

Q: A source placed at x = 0 produces the following wave: y = y sin 2л(8t - x), where t is in seconds…

A: The problem is about wave interference, specifically destructive interference. Destructive…

Q: As discussed in the chapter, many species of bats find flying insects by emitting pulses of…

A: Step 1 The bat is an animal that produces ultrasonic waves that reflect back from the wall. On the…

Q: In the afternoon, the decibel level of a busy freeway is 100 dB with 100 cars passing a given point…

Q: flutists are tuning their flutes with one playing a 560 Hz tone and the other playing a 548 Hz tone.…

A: In the given question, it's given that one flute is playing a frequency of 560 Hz and another…

Q: A 90 cm-long steel string with a linear density of 1.1 g/m is lder and vibrates at its fundamental…

Q: A hammer taps on the end of a 4.0 m long metal bar at room temp. A microphone on the other end of…

A: (a) Let v1 denotes the sound speed in air, v2 denotes the sound speed in the metal bar, d denotes…

Q: A train approaches a station and sounds its horn which has a natural frequency of 155 Hz. The train…

A: The answers are below

Q: 60. What is the length of an open end air column that would resonate in the first harmonic at 262 Hz…

Concept explainers

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.

Question

f. It is discovered that over this part of the track, the cars are experiencing friction
forces of 100 N. If the length of the drop is 40 m, what is the total work done on a
carriage weighing 200 kg?
Oscillator Type Question: A ship uses a horn to signal to other ships. The horn emits a sound
intensity measuring 120 dB at 1 m using a point detector, with a frequency of 150 Hz. The
horn is at approximately sea level at a temperature of 10°C.
a. If the reference intensity of sound in air is 1 pW/m², what is the total power of the
horn?
b. If the ambient sound of the ocean is about 50 dB, at what distance will the horn be
difficult to hea
How long will it take the sound of the horn to cover this distance if the air is mainly
N2 with a molar mass of 28 g/mol and an adiabatic ratio of 7/5?
C.
d. A window measuring 2x3 m is placed 1 m from the horn. The window can withstand
a maximum force of 100 N, will it be shattered by the sound if the reference
pressure for sound in air is 20μPa?
e.
The horn is heard by a plane moving towards the boat at 150 km/h. What frequency
will the pilot hear?
f.
The horn creates the sound using a large diaphragm which is made to vibrate with
compressed air. The diaphragm has a total mass of 0.5 kg. Assuming this system
works the same way as a simple harmonic oscillator, what must its spring constant
be?
g. The horn has a quality factor of 20 How long after the compressed air is turned off

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

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 plane is landing and reported having a decibel reading of 67 dB. 1. What is the intensity of the plane? 2. If the power of the noise at a distance of 9500 m above ground? 3. How much more intense is a drum set with 97 dß compared to the plane?
Two loudspeaker are separated by 2.5 m. A person stands at 3.0 m from one and at 3.5m from the other one. Assume a sound velocity of 343 m/s. A.what is the minimum frequency to present constructive interference at this point? B.calculate the other two frequencies that also produce constructive interference?
An alarm clock is ringing inside a jar. You are able to pump air out with a vacuum pump. What happens as more and more air is removed? a) The intensity of the sound from the bell does not change. b) The speed of the sound from the bell gradually increases. O c) The frequency of the sound from the bell gradually increases. d) The sound intensity from the bell gradually decreases. e) The frequency of the sound from the bell gradually decreases.
An electric guitar's amplifier is at a distance of 5.00 m. a) Find the intensity of its sound waves when its power output is 0.25 W, and what is the sound level at this distance? b) Find the intensity of the sound waves when the amplifier's power output is 0.50 W, and what is the corresponding sound level?
8. When you are 5.00 meters from a point source of sound waves you detect an intensity level, B, of 117 dB. The power output of the source is: a. What is the intensity level, ß, that you will detect if you moved to a location that is 10.0 meters from the source? Note your answer should be in dB. b. What is the power output of the source (in Watts)?
A loudspeaker on a pole at the same height as your ears is radiating 100 W of sound energy in all directions. You are walking directly toward the speaker at 0.60 m/s. Assume your ears are 20 m away from the loudspeaker itself and, although it is not realistic, ignore all reflections of sound from nearby objects such as the ground. What is the sound intensity level at the location of your ears? Express your answer with dB units. ► View Available Hint(s) B Submit Part B dß dt = Submit μÀ || Value What is the rate (dB/s) at which the sound intensity level is increasing? Hint: Use the chain rule and the relationship log₁0 x = ln x/ ln 10. Express your answer in decibels per second. ► View Available Hint(s) Units VE ΑΣΦ www ? ? dB/s
Q3: A 1.0 W point source emits sound waves isotopically. Assuming that the energy of the waves is conserved, find the intensity (a) 1.0 m from the source and (b) 2.5 m from the source. (Hint: the area of the sphere is 4ar')
A 4.50 m long rope is stretched between two supports with a tension that makes the speed of transverse waves 48.0 m/s . a)What is the wavelength of the fundamental tone? b)What is the frequency of the fundamental tone? c)What is the wavelength of the second overtone? d)What is the frequency of the second overtone? e)What is the wavelength of the fourth harmonic? f)What is the frequency of the fourth harmonic?
The softest sound a human ear can hear is at 0 dB (Io = 10-12 W/m2). Sounds above 130 dB cause pain. A particular student's eardrum has an area of A = 51 mm^2. a. What is the most power, in watts, the ear can receive before the listener feels pain? b. What is the smallest power, in watts, the ear can detect?
A train approaches a station and sounds it’s horn which has a natural frequency of 155 Hz. The train is traveling at 39 m/s and the speed of sound in air is 340 m/s. A. What frequency does a person standing at the station hear? B. What frequency does a person sitting on a train hear?
Urgent please! A firecracker produces a power of 2.5x10-3 mw.a. What is the intensity of a firecracker at a distance of 3.00 m from thefirecracker?b. How many firecrackers would be required to produce a sound level of 120db at a distance of 5.00 m from the firecrackers?
A guitar string 75.0cm in length is strung to play the note C at a frequency of 880Hz as it 3rd harmonic. a.) what is the length of the transverse wave on the guitar string? b) what is the speed of this transverse wave along the guitar string? c.) what is the length of the longitudinal sound wave that travels through the air?