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Author Question: A bat, flying at 5.00 m/s, emits a chirp at 40.0 kHz. If this sound pulse is reflected by a wall, ... (Read 28 times)

cartlidgeashley

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on: Jul 28, 2018
A bat, flying at 5.00 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? (vsound = 340 m/s.)

Question 2

A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes 0.8 s for the wave to travel the 20 m to the opposite tower. If one meter of the rope has a mass of 0.35 kg, find the tension in the tightrope.


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Sarahjh

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Reply #1 on: Jul 28, 2018
Answer to Question 1

41.2 kHz

Answer to Question 2

219 N


cartlidgeashley

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Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

ebonylittles

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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