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The half-life of radium-226 is 1590 years. if a sample contains 400 mg, how many mg will remain after 2000 years?
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What could explain what happened when the time was equal to 120 minutes
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The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?
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Mathematics, 21.06.2019 19:30
John checked his watch and said that it is thursday, 7 am. what will the day and time be 2006 hours plzzz i will give you 100 points
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The half-life of radium-226 is 1590 years. if a sample contains 400 mg, how many mg will remain afte...
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