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Author Question: A distinctive feature of quarks is that they A) are always observed singly, since they do not ... (Read 31 times)

mydiamond

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on: Jul 27, 2018
A distinctive feature of quarks is that they
 
  A) are always observed singly, since they do not readily interact with other particles.
  B) have zero charge.
  C) have zero rest mass.
  D) have fractional electric charge.

Question 2

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


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fdliggud

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

D

Answer to Question 2

B


mydiamond

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Reply 2 on: Jul 27, 2018
Excellent

sultana.d

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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