a certain radioactive substance has a half-life
A certain radioactive substance has a half-life of 40 minutes. How much of an original 100 grams substance will remain after 2 hours? solution) m= m0/2t/Tm=100 gms..t=2 hours=2*60=120 min..T=40 minm=100/2120/40m=100/23m=100/8m=12.5 gms.
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a certain radioactive substance has a half-life of 40 minutes how much of an original 100 grams substance will remain after 2 hours solution m
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