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?

Q: Submarine A is moving at 9.20 m/s toward submarine B which is at rest. Submarine A emits a 3.50 MHz…

A: Speed of sound in water (V) = 1482 m/s Frequency emitted by first submarine (fs) = 3.5 MHz Speed of…

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

A:

Q: A string on the violin has a length of 18 cm and a mass of 0.86 g. The fundamental frequency of the…

A: Given: Fundamental frequency, f1=1 kHz=1000 Hz Length of the string, L=18 cm=0.18 m Mass, m=0.86…

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

A:

Q: What is the expected critical frequency for a 120 mm thick brick wall? Assume a longitudinal wave…

A:

Q: A train station bell gives off a fundamental tone of 500 Hz as the train approaches the station at a…

A:

Q: A police car’s siren emits a sinusoidal wave with frequency fs= 300 Hz. The speed of sound is 340…

A:

Q: You are in a room where there are two machines. One creates a sound level of 80 dB; and the other 90…

A: We have:The sound level created by the machine 1 is The sound level created by the machine 2 is 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: A string with a mass density of 8.0 g/m is under 40 N of tension. A. Write an expression for a…

A: A. The general expression for a transverse wave traveling along the positive y-axis is: The formula…

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

A:

Q: You blow into a flute and make a perfect “middle C” note at 261.626Hz. The speed of sound at that…

A:

Q: A guitar string is 80cm long and the tension is increase until the speed of a wave on the string is…

A: Given that:Length of the string, L=80 cm=0.80 mVelocity of the wave, v=819.2 m/sAir temperature,…

Q: You are traveling north on a highway moving at 23 m/sec. A police car is traveling toward you going…

A: It is given that

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

A:

Q: An opera singer in a convertible sings a note at 700 Hz while cruising down the highway at 80 km/h.…

A: Original frequency is Speed of source is Speed of sound is Note:Find:(a) Frequency heard by the…

Q: The frequency of the highest note on a certain musical instrument is 2000 Hz. a. How many harmonics…

A: From the question, the value of the fundamental frequency is: Thus, the frequency of the succeeding…

Q: A skydiver carries a buzzer emitting a steady tone at 800 Hz. A friend on the ground at the landing…

A:

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

A:

Q: The distance between consecutive peaks of a transverse wave is 1.45m. Eight peaks pass by you in…

A: f=nT=813.7 s=0.58 Hz   Speed of wave v=0.58 Hz1.45 m=0.84 m/s

Q: A sound source emits an audible frequency of 512 Hz. Which would cause a greater Doppler shift in…

A:

Q: A string on a guitar-like instrument 0.68 m long has a tension of 20 N and a mass per unit length of…

A:

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

A:

Q: а. What the new wavelength of the wave (in m) after the source halved the frequency? b. What the new…

A: a) The wave’s new wavelength can be given as, Here, f, v, and ? represent the wave’s frequency,…

Q: A 2.25-mm-long pipe has one end open. Among its possible standing-wave frequencies is 345 HzHz; the…

A: The units are repeated twice. We will solve the problem with  length 2.25 m and the frequencies 345…

Q: When human vocal cords are used to sing "falsetto", the result is a very pure sound, consisting of…

A: Given : f = 4063 Hz fbeat = 4.5 Hz

Q: . he sound intensity level at a certain location is 32 dB (like during a quiet test time). What is…

A:

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: a. A banjo D string is 0.69 m long and has a fundamental frequency of 293.6 Hz. Determine the speed…

A: a) Calculate the speed of the wave on the string. f=v2L293.6 Hz=v2(0.69 m)v=405.168 m/sv≈405.17 m/s

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…

A:

Q: A police car with its siren on approaches a stationary observer at a speed of 33 m/s. The frequency…

A:

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.