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Author Question: To estimate the distance in kilometers of a flash of lightning, count the number of seconds between ... (Read 99 times)

Shelles

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To estimate the distance in kilometers of a flash of lightning, count the number of seconds between seeing the flash and hearing the accompanying thunder, then divide by
 
  A) 2.
  B) 3.
  C) 4.
  D) 5.
  E) none of the above

Question 2

The speed of a sound wave in air depends on
 
  A) its frequency.
  B) its wavelength.
  C) air temperature.
  D) all of the above
  E) none of the above



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cascooper22

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Answer to Question 1

Answer: B

Answer to Question 2

Answer: C





 

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