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Author Question: One nuclear reaction that occurs occasionally in the sun is the fusion of three alpha particles. ... (Read 65 times)

sammy

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on: Jul 29, 2018
One nuclear reaction that occurs occasionally in the sun is the fusion of three alpha particles. What isotope is produced by this reaction? NOTE: Atomic number 6 is carbon, number 7 is nitrogen, and number 8 is oxygen.
 
  A) 12O B) 14N C) 12N D) 12C E) 14C

Question 2

A boy on a bicycle approaches a brick wall as he sounds his horn at a frequency 400.00 Hz. The sound he hears reflected back from the wall is at a frequency 408.00 Hz.
 
  At what is the speed is the boy riding his bicycle toward the wall? Assume the speed of sound in air is 340 m/s. A) 3.68 m/s
  B) 333 m/s
  C) 6.67 m/s
  D) 6.80 m/s
  E) 3.37 m/s


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verrinzo

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Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

E


sammy

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Reply 2 on: Jul 29, 2018
Excellent

Viet Thy

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Reply 3 on: Yesterday
Wow, this really help

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