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Author Question: A radioactive isotope of atomic number Z emits an alpha particle, and the daughter nucleus then ... (Read 107 times)

809779

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on: Jul 29, 2018
A radioactive isotope of atomic number Z emits an alpha particle, and the daughter nucleus then emits a beta-minus particle. What is the atomic number of the resulting nucleus?
 
  A) Z -1
  B) Z + 1
  C) Z - 2
  D) Z - 3

Question 2

How much current will be flowing through a 40.0 m length of cylindrical metal wire with radius 0.0 mm if it is connected to a source supplying 16.0 V?
 
  The resistivity of this metal is 1.68  10-8   m.
  A) 68 nA B) 9.5  108 A C) 710 A D) 1200 A


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Heffejeff

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

A

Answer to Question 2

D


809779

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Reply 2 on: Jul 29, 2018
Gracias!

31809pancho

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Reply 3 on: Yesterday
Excellent

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