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Author Question: Of the various types of electromagnetic radiation, the shortest wavelengths are the most penetrating ... (Read 50 times)

nramada

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on: Jul 28, 2018
Of the various types of electromagnetic radiation, the shortest wavelengths are the most penetrating through all forms of matter. Which of the following is it?
 a. ultraviolet
  c. infrared
  b. gamma
  d. visible light

Question 2

A bat, flying at 3.00 m/s toward a wall, emits a chirp at 50.0 kHz. If the wall reflects this sound pulse, what is the frequency of the echo received by the bat? (vsound = 340 m/s)
 a. 51.5 kHz
  c. 40.8 kHz
  b. 51.2 kHz
  d. 50.9 kHz


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ecox1012

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

B

Answer to Question 2

D


nramada

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Reply #2 on: Jul 28, 2018
Thank you!


ecox1012

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Reply #3 on: Jul 28, 2018
Always glad to help...


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