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Author Question: Gamma rays can penetrate A) air only. B) a piece of paper. C) several millimeters ... (Read 25 times)

JGIBBSON

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on: Jul 29, 2018
Gamma rays can penetrate
 
  A)
 
  air only.
  B)
 
  a piece of paper.
  C)
 
  several millimeters of aluminum.
  D)
 
  several centimeters of lead.
  E)
 
  several meters of iron.

Question 2

In hydrogen any transition ending in the ground state emits a photon that
 
  A)
 
  may be in the ultraviolet.
  B)
 
  is in neither the ultraviolet nor the infrared.
  C)
 
  may be in the infrared.
  D)
 
  is in the infrared.
  E)
 
  is in the ultraviolet.


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cloud

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

D

Answer to Question 2

E


JGIBBSON

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Reply 2 on: Jul 29, 2018
Excellent

frankwu0507

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Reply 3 on: Yesterday
:D TYSM

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