Physics Questions
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What is the length of the shortest pipe closed on one end that will have a fundamental frequency of 60 Hz on a day when the velocity of sound is 340 m/s?
Consider two pipes of the same length: one is open and the other is closed on one end. If the fundamental frequency of the open pipe is 300 Hz, what is the fundamental frequency of the closed pipe?
A sound source approaches a stationary 1000 Hz sound source at one-half the speed of sound. The observer hears a frequency of
A closed organ pipe of length 0.75 m is played when the speed of sound in air is 340 m/s. What is the fundamental frequency?
The wavelength in air of a sound wave of frequency 500 Hz is
The frequency of the third harmonic of an open pipe is 900 Hz. What is the length of the pipe?
A sound has a frequency of 1000 Hz. If a listener moves with a speed of 30 m/s away from the source, what is the frequency heard by the observer?
The intensity level is 65 dB at a distance 5.00 m from a barking dog. What would be the intensity level if two identical dogs very close to each other are barking?
A barking dog delivers about 1 mW of power, which is assumed to be uniformly distributed in all directions. What is the intensity level at a distance 5.00 m from the dog?
On a day when the speed of sound in air is 340 m/s, a bat emits a shriek whose echo reaches it 0.0250 s later. How far away was the object that reflected back the sound?
The fundamental frequency in a pipe closed at one end is 330 Hz. What is the frequency of the third harmonic?
An organ pipe open at both ends has a length of 0.80 m. If the velocity of sound in air is 340 m/s, what is the frequency of the second harmonic?
You move slowly toward a speaker emitting a pure tone. What characteristics of the sound increases?
The sound intensity level 5.0 m from a point source is 95 dB. At what distance will it be 75 dB?
A sound source departs from a stationary observer. The frequency heard by the observer is
A 3.00 m long pipe is in a room where the temperature is 20 degrees Celsius. What is the fundamental frequency if the pipe is closed at one end?
You shout at a cliff and hear the echo in 4.00 s. The temperature is 0 degrees Celsius. How far away is the cliff?
On a 30 degree Celsius day, there is an explosion. The sound is heard 3.4 s after seeing the flash. How far away was the explosion?
Sound traveling in air at 23 degrees Celsius enters a cold front where the air temperature is 2 degrees Celsius. If the sound frequency is 1500 Hz, determine the wavelength in the warmer air and in the colder air.
The lowest tone to resonate in an open pipe of length L is 200 Hz. Which one of the following frequencies will not resonate in the same pipe?