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Author Question: A certain radioactive isotope placed near a Geiger counter registers 160 counts per minute. Eight ... (Read 33 times)

rl

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on: Jul 29, 2018
A certain radioactive isotope placed near a Geiger counter registers 160 counts per minute. Eight hours later, the counter registers 10 counts per minute. What is the half-life of the isotope?
 
  A) 8 hours
  B) 6 hours
  C) 4 hours
  D) 2 hours
  E) none of the above

Question 2

An emf is induced in a wire by moving the wire near a magnet.
 
  Indicate whether the statement is true or false


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meow1234

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

Answer: D

Answer to Question 2

TRUE


rl

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Reply 2 on: Jul 29, 2018
Gracias!

Viet Thy

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Reply 3 on: Yesterday
:D TYSM

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