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Bats find their prey (insects) by emitting high-frequency sounds and listening for the time it takes the reflections to return to them. Assume the speed of sound is 337 m/s. A certain bat produces these sounds at 21 000 Hz. Because the bat is moving, you hear a different frequency. How fast (in m/s) must the bat be flying for you to hear them? Assume that you can hear sounds up to 20 00OHZ and you are standing still. Hint: In which direction must the bat be flying for you to hear its sounds?

Bats find their prey (insects) by emitting high-frequency sounds and listening for the time it takes the reflections to return to them. Assume the speed of sound is 337 m/s. A certain bat produces these sounds at 21 000 Hz. Because the bat is moving, you hear a different frequency. How fast (in m/s) must the bat be flying for you to hear them? Assume that you can hear sounds up to 20 00OHZ and you are standing still. Hint: In which direction must the bat be flying for you to hear its sounds?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Bats find their prey (insects) by emitting high-frequency sounds and listening for the time it takes the reflections to return to them. Assume the speed of sound is 337 m/s. A certain bat produces these sounds at 21 000 Hz. Because the bat is moving, you hear a different frequency. How fast (in m/s) must the bat be flying for you to hear them? Assume that you can hear sounds up to 20 000HZ and you are standing still. Hint: In which direction must the bat be flying for you to hear its sounds?
Transcribed Image Text:Bats find their prey (insects) by emitting high-frequency sounds and listening for the time it takes the reflections to return to them. Assume the speed of sound is 337 m/s. A certain bat produces these sounds at 21 000 Hz. Because the bat is moving, you hear a different frequency. How fast (in m/s) must the bat be flying for you to hear them? Assume that you can hear sounds up to 20 000HZ and you are standing still. Hint: In which direction must the bat be flying for you to hear its sounds?
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