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Author Question: Which of the following is a prime number? A) 13 B) 21 C) 49 D) ... (Read 12 times)

CQXA

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on: Jul 27, 2018
Which of the following is a prime number?
 
  A) 13
  B) 21
  C) 49
  D) 15

Question 2

Two violin strings, vibrating at 880. Hz and 876. Hz respectively, will cause a beat frequency of
 
  A) 4. Hz.
  B) 8. Hz.
  C) 16. Hz.
  D) 878. Hz.
  E) 1.76 kHz.


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amcvicar

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


CQXA

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Reply #2 on: Jul 27, 2018
Thank you!


amcvicar

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Reply #3 on: Jul 27, 2018
Always glad to help...


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