13-10-2022
Physics

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This table shows how the count rate from a radioactive source changes with time: Use the data in the table to calculate the count rate after 200 seconds.

I don't understand how the cr at 200s is half of the cr at 120 seconds correlates

This table shows how the count rate from a radioactive source changes with time Use the data in the table to calculate the count rate after 200 seconds I dont u class=

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