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Acoustics
The frequency of the highest note on the piano is 4,186 Hz.
a.) How many harmonics of that note can be heard.
b.) How many harmonics of that note one octave below can be heard?
a.) How many harmonics of that note can be heard.
b.) How many harmonics of that note one octave below can be heard?
Acoustics
A home near the beach emits a 4.4 kHz soundwave. A)What is the wavelength of sound in air?The speed in air is 343 m/s .B)What is the wavelength of sound in seawater if the speed of sound in seawater is 1520? C)How long it reach the sound from home to the beach?
Acoustics
An organ pipe is closed at one end has fundamental frequency 1500 Hz. What is the maximum number of fundamental overtones generated by the pipe which a normal can hear?
Acoustics
what characteristics of a wave is determined by the properties of only the source of the wave?
Acoustics
A sonar generator on a ship produces periodic ultrasonic waves at a frequency of 2.2 MHz. The wavelength of the waves in seawater is 5.310-4 m. When the generator is directed downward, an echo is received 15.2 s later. How deep is the ocean in m?
Acoustics
find the ratio of length of a closed organ pipe to that of a open pipe in order that the 2nd overtone of the former is in unison with 4th overtone of the latter
Acoustics
A stretched string of mass 20 g vibrates with a frequency of 30 Hz in its fundamental
mode and the supports are 40 cm apart. The amplitude of vibrations at the antinode is
4 cm. Calculate the velocity of propagation of the wave in the string as well as the tension
in it.
mode and the supports are 40 cm apart. The amplitude of vibrations at the antinode is
4 cm. Calculate the velocity of propagation of the wave in the string as well as the tension
in it.
Acoustics
A bat flying in a cave emits a sound and
receives its echo 0.2 s later.
How far away is the cave wall? Assume the
speed of sound to be 340 m/s.
Answer in units of m
receives its echo 0.2 s later.
How far away is the cave wall? Assume the
speed of sound to be 340 m/s.
Answer in units of m
Acoustics
when the outdoor emergency warning siren at Cheryl's school was tested, the sound from the siren took 7,0 seconds to reach her house located 2400 miles from tohe school. What is the speed of sound in air?
Acoustics
Bats chirp at high frequencies humans cannot hear. They use the echos to detect small objects, such as insects, as small as one wavelength. If a bat emits a chirp at a frequency of 60.0 kHz and the speed of of sound waves in the air is 340 m/s, what is the size in millimeters of the smallest insect the bat can detect.
