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Author Question: The nuclei of radioactive isotopes can sometimes give off A) visible radiation B) UV rays C) ... (Read 309 times)

lbcchick

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The nuclei of radioactive isotopes can sometimes give off
 
  A) visible radiation
  B) UV rays
  C) gamma rays
  D) X-rays

Question 2

Neglecting the effect of air friction, at what angle should a cannon be raised to achieve the greatest RANGE (horizontal distance)?
 
  What will be an ideal response?



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mk6555

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Answer to Question 1

C

Answer to Question 2

45.





 

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