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Author Question: Nimbus means a. poorly formed.. b. rain forming cloud.. c. heap.. d. none of ... (Read 15 times)

Pineappleeh

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on: Jul 28, 2018
Nimbus means
 a. poorly formed..
  b. rain forming cloud..
  c. heap..
  d. none of these.

Question 2

The half-life of 20F is 11 s. What fraction of a sample of 20F will remain after 99 s have elapsed?
 a. 1/10
  b. 1/9
  c. 1/400
  d. 1/512
  e. None of these


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Jadwiga9

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

b

Answer to Question 2

d


Pineappleeh

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Reply #2 on: Jul 28, 2018
TY


Jadwiga9

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Reply #3 on: Jul 28, 2018
You're welcome


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