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Acoustics
A Ship floats on water send a sound when it was 900 m away from a mountain & hears a sound after 6 seconds if the velocity of the sound was 340 m/sec find the velocity of the ship .
Acoustics
The human ear can detect sounds with frequencies between 20 Hz and 16 kHz. Find the
greatest and the smallest wavelengths the ear can detect, assuming the sound travels.
greatest and the smallest wavelengths the ear can detect, assuming the sound travels.
Acoustics
A hiker shouts toward a vertical cliff 685 m away. The echo is heard 4.00 s later.
a. What is the speed of sound in air?
b. The wavelength of the sound is 0.750 m. What is its frequency?
c. What is the period of the wave?
a. What is the speed of sound in air?
b. The wavelength of the sound is 0.750 m. What is its frequency?
c. What is the period of the wave?
Acoustics
If the threshold of hearing is taken as 0 dB, then normal conversation has a decibel level of what?
Acoustics
In order for a sound to be a heard as twice as loud as 110 dB sound, the decibel level would need to be what?
Acoustics
On the front row of the concert the sound level reaches a value of 110 dB. In the back row thw sound intensity is reduced by a factor of 1000. What is the decibel level on the back row?
Acoustics
A train is at rest and you are driving toward it at 50 m/sec when it emits a pitch of 1500 Hz, with what frequency will you hear the pitch?
Acoustics
If a train is moving toward you and at a speed of 50 m/sec and emits a whistle sound of pitch 1500 Hz, what will be the frequency with which you hear the pitch?
Acoustics
The bones are dead cells and living cells. If dead why? If living why?
Acoustics
what does magnetic flux mean in terms of both magnetic field lines and magnetic field strength? where is it greatest on a magnet?
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#339914 on Dec 2023
#339914 on Dec 2023