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Author Question: Two uses of ultrasound are navigation by bats and controlling insects. Indicate whether the ... (Read 97 times)

student77

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on: Jul 28, 2018
Two uses of ultrasound are navigation by bats and controlling insects.
  Indicate whether the statement is true or false

Question 2

In ultrasound the wavelength of the sound is much smaller than in normal sound.
  Indicate whether the statement is true or false


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Harbringer

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

T

Answer to Question 2

T


student77

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Reply 2 on: Jul 28, 2018
:D TYSM

mcarey591

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Reply 3 on: Yesterday
Excellent

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