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Author Question: The proper abbreviation for seconds' is sec.' Indicate whether the statement is true or ... (Read 75 times)

TVarnum

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on: Jul 28, 2018
The proper abbreviation for seconds' is sec.'
  Indicate whether the statement is true or false

Question 2

A sonic boom occurs:
 a. exactly when an object breaks the sound barrier.
  b. just before an object breaks the sound barrier.
  c. immediately after an object breaks the sound barrier.
  d. when an object slows down to less than the speed of sound.
  e. when the edge of the shock wave reaches a listening ear.


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taylorsonier

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

F

Answer to Question 2

e


TVarnum

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Reply 2 on: Jul 28, 2018
Wow, this really help

sultana.d

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Reply 3 on: Yesterday
Gracias!

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