The radioactive isotope has a half-life of 260 y and has a, Physics

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The radioactive isotope has a half-life of 260 y and has a

The radioactive isotope has a half-life of 2.60 y and has a half-life of 87.0 days . They each emit positive β- particles or positrons. A sample of each is prepares on June 1 and when placed on the window of a Geiger counter the gives 5000 counts per second and the 20000 counts per second. when will the two samples have the same activity , and what will the count rate be at that time?

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Physics: The radioactive isotope has a half-life of 260 y and has a

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Physics: The radioactive isotope has a half-life of 260 y and has a

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