A certain radioactive substance has a half-life of 38 hours. The rate of change in the decay is proportional to the current amount, x. How long it takes for 90% of the radioactivity to be dissipated?

Q: A certain radioactive substance has a half-life of 38 hr. Find how long it takes for 80% of the…

A: Given that: Half life, t1/2=38 hr

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Q: A certain radioactive substance has a half-life of 38 hour. Find how long (in hours) it takes for…

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