1. A bat emits a sound at a frequency of 12 kHz as it approaches a...
1. A bat emits a sound at a frequency of 12 kHz as it approaches a wall. The bat detects beats such that the frequency of the echo is 860 Hz higher than the frequency the bat is emitting. The speed of sound in air is 340 m/s. The speed of the bat is closest to
2. A supersonic plane passes overhead at a speed of 823 m/s. If you hear the sonic boom (shock wave) 4 s after the plane is directly overhead, at what altitude is the plane flying? Assume the speed of sound in air is 340 m/s.
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1. A bat emits a sound at a frequency of 12 kHz as it approaches
a...
A bat, flying at 20.0 m/s, emits a chirp at 40.0 kHz. If this sound pulse...
A bat, flying at 20.0 m/s, emits a chirp at 40.0 kHz. If this sound pulse is reflected by a wall, what is the frequency of the echo received by the bat? (V sound = 340 m/s. unit in kHz)
3. A bat flying toward a wall at 6.0m/s emits a sound at a frequency of...
3. A bat flying toward a wall at 6.0m/s emits a sound at a frequency of 35kHz. What is the frequency of the echo (sound reflected by the wall back to the bat) that the bat hear? Assume the speed of sound to be 343m/s.
A bat, flying at 4.70 m/s toward a wall, emits a chirp at 50.0 kHz. If...
A bat, flying at 4.70 m/s toward a wall, emits a chirp at 50.0 kHz. If the wall reflects this sound pulse, what is the frequency, in kHz, of the echo received by the bat? (vsound = 340 m/s)
A bat flying at 4.10 m/s is chasing an insect flying in the same direction. If...
A bat flying at 4.10 m/s is chasing an insect flying in the same direction. If the bat emits a 40.0-kHz chirp and receives back an echo at 40.4 kHz, what is the speed of the insect? (Take the speed of sound in air to be 340 m/s.) _______m/s
A bat searching for prey emits sound at 90 kHz. The bat flies at 9.0 m/s....
A bat searching for prey emits sound at 90 kHz. The bat flies at 9.0 m/s. The sound emitted by the bat reaches a moth at rest. What frequency is the sound once it reaches the moth? Take the speed of sound in air to be 343 m/s. The moth now flies away at 2 m/s. What is the difference between the frequency that originally reached the still moth and the frequency reaching the moving moth? answer to second part...
when a figher jet travels faster than sound it generates a sonic boom shock wave in...
when a figher jet travels faster than sound it generates a sonic boom shock wave in the shape of a cone. if the plane is flying at a constant altitude, this cone intersects the ground in the shape of one branch of a hyperbola. suppose a jet is flying north at level altitude and at a speed of 500 m/s ( which is a supersonic speed). in this model let the position of the jet be the origin. the vertix...
An airplane traveling at half the speed of sound emits a sound of frequency 4.43 kHz....
An airplane traveling at half the speed of sound emits a sound of frequency 4.43 kHz. (a) At what frequency does a stationary listener hear the sound as the plane approaches? (b) At what frequency does a stationary listener hear the sound after the plane passes?
A bat flying at 3.00 m/s is chasing an insect flying away from it at a...
A bat flying at 3.00 m/s is chasing an insect flying away from it at a speed of 5.00 m/s. The bat emits a 40.0 kHz chirp which is detected by the insect. What is the frequency of sound detected by the insect, assuming that the insect can actually “hear” the chirp emitted by the bat? (The speed of sound in air is 343 m/s.)
An airplane traveling at half the speed of sound emits a sound of frequency 5.97 kHz....
An airplane traveling at half the speed of sound emits a sound of frequency 5.97 kHz. (a) At what frequency does a stationary listener hear the sound as the plane approaches? 11.94 kHz (b) At what frequency does a stationary listener hear the sound after the plane passes? 2.99 Your response differs from the correct answer by more than 10%. Double check your calculations. kHz
A bat moving with a speed of 3.15 m/s and emitting sound of 39.0 kHz approaches...
A bat moving with a speed of 3.15 m/s and emitting sound of 39.0 kHz approaches a moth at rest on a tree trunk. Part A What frequency is heard by the moth?
An airplane traveling at half the speed of sound emits a sound of frequency 5.97 kHz. (a) At what frequency does a stationary listener hear the sound as the plane approaches? 11.94 kHz (b) At what frequency does a stationary listener hear the sound after the plane passes? 2.99 Your response differs from the correct answer by more than 10%. Double check your calculations. kHz
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