Mathematics

Mathematics, 25.10.2019 06:43, xxchloekai

The half-life of radioactive actinium (^227 ac) is 22 years. how much will remain after 15 years? find r first.

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Mathematics, 28.08.2019 20:10, meganwintergirl

The amount of a radioactive substance remaining after t years is given by the function , where m is the initial mass and h is the half-life in years. iron has a half-life of 2.7 years. which equation gives the mass of a 200 mg iron sample remaining after t years, and approximately how many milligrams remain after 12 years?

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Mathematics, 07.10.2019 19:00, Evixie84

The amount of a radioactive substance remaining after t years is given by the function (0) = m(0.5) where m is the initial mass and h is the half-life in years. cobalt-60 has a half-life of about 5.3 years. which equation gives the mass of a 50 mg cobalt-60 sample remaining after 10 years, and approximately how many milligrams remain? f(10) = 50(0.5) 19, 13.5 mg f(10) = 50(0.50)0.53; 34.6 mg f(10) = 5.3(0.5)5; 0.2 mg f(10) = 5.3(0.5)02; 4.6 mg

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Chemistry, 29.10.2019 21:31, Sadaalcala1

C-14 has a half life of 5,730 years. you begin with 600 gramsa. at the end of the first half-life, how much substance is still radioactive? b. after 4 half lives, how much would remain radioactive and how much would be stable?

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The half-life of radioactive actinium (^227 ac) is 22 years. how much will remain after 15 years? f...

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