SOLUTION: The​ half-life of the radioactive element unobtanium -47 is 10 seconds. If 32 grams of -47 are initially​ present, how many grams are present after 10 ​seconds? 20 ​secon

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Question 1187707: The​ half-life of the radioactive element unobtanium -47 is 10 seconds. If 32 grams of -47 are initially​ present, how many grams are present after 10 ​seconds? 20 ​seconds? 30 ​seconds? 40 ​seconds? 50 ​seconds?
Answer by Alan3354(69443) About Me  (Show Source):
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The​ half-life of the radioactive element unobtanium -47 is 10 seconds. If 32 grams of -47 are initially​ present,
how many grams are present after 10 ​seconds?
32*1/2
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20 ​seconds?
32*(1/2)^2
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30 ​seconds?
32*(1/2)^3
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40 ​seconds?
32*(1/2)^4
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50 ​seconds?
32*(1/2)^5
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Do you see a pattern?
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