anonymous
  • anonymous
Strontium-90 has a half-life of 29 years. In how many years will a 1 kg sample of strontium-90 decay and reduce to 0.25 kg of strontium-90? Answer 58 years 116 years 87 years 29 years
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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2bornot2b
  • 2bornot2b
Please try posting it in the physics group, I believe you will get better help there..

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