Question

As a bat flies toward a wall at a speed of 5.20 m/sm/s , the bat...

As a bat flies toward a wall at a speed of 5.20 m/sm/s , the bat emits an ultrasonic sound wave with frequency 28.5 kHzkHz .

What frequency does the bat hear in the reflected wave?

Homework Answers

Answer #1

Here I upload solution, by two method, you can use anyone as you like. Thanks.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Problem 4: A bat flies towards a wall and emits a 5000 Hz sound wave. The...
Problem 4: A bat flies towards a wall and emits a 5000 Hz sound wave. The speed of sound in the air is 343 m/s.               A: If the sound pulse takes 7 miliseconds to reflect off the wall and come back, how far from the wall is the bat?               B: If the frequency observed by the bat of the reflected wave is 165 Hz higher, how fast is the bat approaching the wall?
A bat flies toward a wall, emitting a steady sound of frequency 2030 Hz . The...
A bat flies toward a wall, emitting a steady sound of frequency 2030 Hz . The bat hears its own sound, plus the sound reflected by the wall. Part A How fast should the bat fly in order to hear a beat frequency of 20.0 Hz ?
A bat is flitting about in a cave, navigating via ultrasonic bleeps. Assume that the sound...
A bat is flitting about in a cave, navigating via ultrasonic bleeps. Assume that the sound emission frequency of the bat is 39,113 Hz. During one fast swoop directly toward a flat wall surface, the bat is moving at 12 m/s, what frequency does the bat hear reflected off the wall? The speed of sound is 340 m/s.
A bat flying toward a wall emits a 39000-Hz sonar pulse. The pulse is reflected back...
A bat flying toward a wall emits a 39000-Hz sonar pulse. The pulse is reflected back from the wall and the bat hears the reflected pulse at a frequency of (39000 + 720) Hz. Take the speed of sound to be 343 m/s. Find the speed of the bat, in meters per second.
A bat flying at 5.25 m/s is chasing an insect flying at 3.49 m/s in the...
A bat flying at 5.25 m/s is chasing an insect flying at 3.49 m/s in the same direction. The bat emits a steady chirp of frequency 2000 Hz. a. What frequency, f0, does the insect hear? b. The insect becomes a moving source at frequency f0. What frequency does the bat hear reflected from the insect? c. The bat hears its own sound, plus the sound reflected by the insect. What beat frequency does the bat hear?
A bat, flying at 5.9 m/s, pursues an insect that is flying at 1.9 m/s in...
A bat, flying at 5.9 m/s, pursues an insect that is flying at 1.9 m/s in the same direction. The bat emits a 47000-Hz sonar pulse. Take the speed of sound to be 343 m/s. At what frequency, in hertz, does the bat hear the pulse reflected back from the insect?
3. 1323 A bat flies towards a moth at 7.3 m/s while the moth is flying...
3. 1323 A bat flies towards a moth at 7.3 m/s while the moth is flying towards the bat at 5.1 m/s. The bat emits a sound wave of 50.4 kHz.        Part Description Answer Save Status A. What is the frequency of the wave detected by the bat after the wave reflects off the moth? (include units with answer) Format Check 10 pts.110% 2% try penalty Hints: 1,0 # tries: 0 B. After enjoying a tasty meal of the...
1) A car is approaching a reflecting wall. A stationary observer behind the car hears a...
1) A car is approaching a reflecting wall. A stationary observer behind the car hears a sound of frequency 790 Hz from the car horn and a sound of frequency 873 Hz from the wall. (a) How fast is the car traveling? .......... km/h (b) What is the frequency of the car horn? ........... Hz (c) What frequency does the car driver hear reflected from the wall? ............ Hz ------------------------------------------------------------------------------------------------ 2) A bat flying toward an obstacle at 10 m/s...
A bat flying at 8 m/s emits a chirp at 400 Hz, which is reflected by...
A bat flying at 8 m/s emits a chirp at 400 Hz, which is reflected by a wall. (7.5 points) What is the frequency of the echo received by the bat? (Hint: the walls reflects the same frequency signal as it receives it)
A sound source A with a speed of 29.9 m/s and a reflecting surface B with...
A sound source A with a speed of 29.9 m/s and a reflecting surface B with a speed of 65.8 m/s moves directly towards each other. The source emits a wave frequency of 1.20 x 103 Hz, take the speed of sound in air to be 329 m/s. What is (a) the frequency as perceived by the reflector as the two sources moves towards each other; (b) The frequency as perceived by source A, when the sound wave reflected back...