Question

In: Physics

1. A vibrating string is cut in half. The fundamental frequency of the string will be......

1. A vibrating string is cut in half. The fundamental frequency of the string will be...

a. doubled

b. unchanged

c. reduced by half

2.On a pipe organ, for a closed pipe, if you double the length of the pipe, what happens to the fundamental frequency?

a. It does not change.

b. It doubles.

c. It is reduced by half.

d. It is reduced by 1/4.

e. It is increased 4x.

3. When you blow gently across the top of a particular soda bottle, it emits a tone. The column of air in the bottle is vibrating up and down in its fundamental mode. If you replace the air in the bottle with something heavier than air (like carbon dioxide) and then blow gently across the top of the bottle, it will emit

a) a higher pitched tone. b) a tone at the same pitch as before.

c) no sound at all. d) a lower pitched tone.

9. If you blow across the top of a half full bottle of soda you can produce a clear tone. If you take a drink of soda to reduce the amount of liquid in the bottle and try this again the pitch (frequency) of the sound produced will

a) increase. b) stay the same.

c) exactly double. d) decrease.

Expert Solution

multiple questions allowed to solve 1 question only.

3. When you blow gently across the top of a particular soda bottle, it emits a tone. The column of air in the bottle is vibrating up and down in its fundamental mode. If you replace the air in the bottle with something heavier than air (like carbon dioxide) and then blow gently across the top of the bottle, it will emit

a) a higher pitched tone. b) a tone at the same pitch as before.

c) no sound at all. d) a lower pitched tone.

answer) is part d) a lower pitched tone. =======================answer)

9. If you blow across the top of a half full bottle of soda you can produce a clear tone. If you take a drink of soda to reduce the amount of liquid in the bottle and try this again the pitch (frequency) of the sound produced will

a) increase. b) stay the same.

c) exactly double. d) decrease.

answer) is d) decrease. ===================>>>>>>>>>>answer)

genius_generous answered 1 year ago

The G string on a guitar is 69 cm long and has a fundamental frequency of...

The G string on a guitar is 69 cm long and has a fundamental frequency of 196 Hz. A guitarist can play different notes by pushing the string against various frets, which changes the string's length. The third fret from the neck gives B♭ (233.08 Hz); the fourth fret gives B (246.94 Hz). How far apart are the third and fourth frets? Express your answer to two significant figures and include the appropriate units.

. If a string fixed at both ends resonates in its fundamental mode with a frequency...

. If a string fixed at both ends resonates in its fundamental mode with a frequency of 150 Hz, at which of the following frequencies will it not resonate?

A cellist tunes the C-string of her instrument to a fundamental frequency of 65.4 Hz. The...

A cellist tunes the C-string of her instrument to a fundamental frequency of 65.4 Hz. The vibrating portion of the string is 0.600 m long and has a mass of 14.5 gA.) With what tension must she stretch that portion of the string?B.) What percentage increase in tension is needed to increase the frequency from 65.4 Hz to 73.4 Hz, corresponding to a rise in pitch from C to D?

a It was observed that natural frequency of a torsional pendulum when vibrating in vacuum is...

a It was observed that natural frequency of a torsional pendulum when vibrating in vacuum is 280Hz. But, the damping frequency is 220Hz when the same pendulum is dipped in an oil of specific gravity 0.9. Find the value of damping factor of the oil. (Hint: There is no damping in case of vacuum) b A vibratory system weighing 1.5tonnes has the the following successive amplitudes: 5.00, 3.15, 2.00, 0.75, 0.50, 0.30, 0.20, 0.10 mm respectively. The time gap between...

A tuning fork on a movable cart is vibrating at a frequency of 1500 Hz. As...

A tuning fork on a movable cart is vibrating at a frequency of 1500 Hz. As you are walking past the cart at 2 m/sec, the cart begins accelerating uniformly in the direction you’re walking. When it is 20 m in front of you, the sound of the tuning fork is heard to be at a frequency of 1380 Hz. Knowing that the air temperature at your location is 23.6°C, determine the acceleration of the cart.

A police siren of frequency is attached to a vibrating platform. The platform and siren oscillate...

A police siren of frequency is attached to a vibrating platform. The platform and siren oscillate up and down in simple harmonic motion with amplitude and frequency . (a) Find the maximum and minimum sound frequencies that you would hear at a position directly above the siren. (b) At what point in the motion of the platform is the maximum frequency heard? The minimum frequency? Explain. Can you explain part B in details?thank you

When tuning his guitar, a music student notices that the string is not vibrating at the...

When tuning his guitar, a music student notices that the string is not vibrating at the desired frequency of 185 Hz, so he tightens the string by 18.0% to get this frequency. At what frequency was the string vibrating when he first started the tuning process?

Sort a string array by frequency given an array of string write a function that will...

Sort a string array by frequency given an array of string write a function that will return an array that is sorted by frequency example {"hello","hola","hello","hello","ciao","hola","hola","hola"} returned array should be {"hola","hello","ciao"}

A violinist places her finger so that the vibrating section of a 1.00 g/m string has a...

A violinist places her finger so that the vibrating section of a 1.00 g/m string has a length of 40.0 cm, then she draws her bow across it. A listener nearby in a 20 degrees Celcius room hears a note with a wavelength of 60.0 cm. What is the tension in the string?

for Electroglottography how do you determine the fundamental frequency?