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Author Question: The proton is believed to consist of what quark combination? (up, down, strange, charm, top, bottom) ... (Read 87 times)

madam-professor

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on: Jul 27, 2018
The proton is believed to consist of what quark combination? (up, down, strange, charm, top, bottom)
 
  A) uud
  B) ddu
  C) uds
  D) ttb
  E) bbt

Question 2

A gray (Gy) is
 
  A) 3.70  1010 decays/s in radium.
  B) the SI unit of absorbed dose = 1 J/kg = 100 rad.
  C) a dosage of 2.58  10-4 C/kg.
  D) the SI unit of radioactivity (= 1 decay/s).
  E) 10-2 J/kg.


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cascooper22

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

A

Answer to Question 2

B


madam-professor

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Reply 2 on: Jul 27, 2018
Excellent

Joy Chen

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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