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A radioactive substance decays according to

A radioactive substance decays according to
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5 votes
A radioactive substance decays according to

A radioactive substance decays according to-example-1
User Engineer Passion
by
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1 Answer

1 vote

Answer:554.64 s

Step-by-step explanation:78/250= e^(-0.0021t)

0.312=e^(-0.0021t)

ln0.312= -0.0021t

t= 554.64 s

User Everyday
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