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Author Question: Wave frequency is inversely proportional to a. amplitude. b. period. c. wave velocity. d. all of ... (Read 179 times)

abarnes

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on: Jul 28, 2018
Wave frequency is inversely proportional to
 a. amplitude.
  b. period.
  c. wave velocity.
  d. all of these.

Question 2

A pure sample of 226Ra contains 2.0  1014 atoms of the isotope. If the half-life of 226Ra = 1.6  103 years, what is the decay rate of this sample? (1 Ci = 3.7  1010 decays/s)


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jackie

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Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

7.4  108 Ci


abarnes

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

bulacsom

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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