What beat frequency would be heard by a tuba player in a marching band, of a...

What beat frequency would be heard by a tuba player in a marching band, of a note with a frequency of 4.50E2 Hz and the notes echo off a stationary building; if he is walking towards the building at a speed of 1.56 m/s, on a hot day with a temperature of 34.3 degC?

Solutions

Expert Solution

If f and f0 be the Doppler shifted and normal frequency of sound, then we can write

where c is the velocity of sound

vr is the velocity of the receiver which is positive or negative depending on whether the receiver is moving towards or away from the source.

vs is the velocity of the source which is positive or negative depending on whether the source is moving away or towards the receiver.

Here, the sound is emitted by the band which gets reflected by the building. So the building is a virtual source and the band is the receiver.

The band is moving towards the building(source), hence vr is positive.

Velocity of sound at any temperature T is given by

Hence at 34.3 deg C

Using these values in the Doppler equation,

Beat frequency is

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

Below are two judges’ rankings of bands at a marching band competition. Calculate the Covariance, Coefficient...

Below are two judges’ rankings of bands at a marching band competition. Calculate the Covariance, Coefficient of Correlation, the Least Squares Equation and the Coefficient of Determination. Also, use your equation of calculate Judge 2’s rank of the bands if Judge 1 ranks them a 4. Judge 1 (x) Judge 2 (y) 1 6 3 4 4 5 7 1 5 3 6 2 2 7

A television signal is broadcasting over a suitable band. The initial frequency of the band is...

A television signal is broadcasting over a suitable band. The initial frequency of the band is 270(MHz) Sketch a neat spectrum of Television transmission as per NTSC and PAL system. Clearly mention the picture, sound and color position on it.

Describe the i band, h zone, and a band, what stucture would you expect of find...

Describe the i band, h zone, and a band, what stucture would you expect of find in each of theses zones or bands. describe the conducting system of skeletal muscles and the specific role of sarcolemma, sarcoplasmic reticulum reticulum, t tubules draw and label the conducting easy simple straight to the point answers

For a person with normal hearing, the faintest sound that can be heard at a frequency...

For a person with normal hearing, the faintest sound that can be heard at a frequency of 400 Hz has a pressure amplitude of about 6.0×10^−5 Pa. Part A) Calculate the intensity of this sound wave at 20 ∘C. Part B) Calculate the sound intensity level of this sound wave at 20 ∘C. Part C) Calculate the displacement amplitude of this sound wave at 20 ∘C.

In the band diagram of potassium, the valence band would be: a) completely filled b) partially...

In the band diagram of potassium, the valence band would be: a) completely filled b) partially filled c) completely empty d) nonexistent I know the answer is a), but could someone clearly explain to me why this is?

Two microwave signals of nearly equal wavelengths can generate a beat frequency if both are directed...

Two microwave signals of nearly equal wavelengths can generate a beat frequency if both are directed onto the same microwave detector. In an experiment, the beat frequency is 170MHz . One microwave generator is set to emit microwaves with a wavelength of 1.410cm. If the second generator emits the longer wavelength, what is that wavelength?

what does the term beat as in beat generation actually refer to? Describe how the author...

what does the term beat as in beat generation actually refer to? Describe how the author of the article: "This is the Beat Generation" in its various facets. How well do the two examples of Beat Generation writes the embody the author's characterizations of the Beat Generation?

A guitar player can change the frequency of a string by "bending" it-pushing it along a...

A guitar player can change the frequency of a string by "bending" it-pushing it along a fret that is perpendicular to its length. This stretches the string, increasing its tension and its frequency. The G string on a guitar is 64 cm long and has a tension of 74 N. The guitarist pushes this string down against a fret located at the center of the string, which gives it a frequency of 392 Hz. He then bends the string, pushing...

What does the presence of the monoclonal band IgG kappa band indicate?

Order the following compounds in descending order of frequency for the carbonyl band. 1) 2-propanone, methanal,...

Order the following compounds in descending order of frequency for the carbonyl band. 1) 2-propanone, methanal, ethanal 2) 2- pentonone, ethyl butanoate, pentanamide 3) cyclohexanone, 2-cyclohexenone, 3-cyclohexenone. c) Explain why primary amines and primary amides have two absorption bands d) Explain why the carbonyl band of a carboxylate salt are displaced at frequencies lower than 1710 cm

Subjects