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A sample of radioactive actinium-288 has an initial activity of 363 disintegrations per minute and its activity is measured in a laboratory every six hours. The table below shows the recorded data. In A Disintegrations per minute (min¯¹) (A) Time (hours) (t) 0 363 184 93.2 47.3 24.0 6 12 18 24 a) Complete the column labeled In A to 2 decimal places in the table above.
Sagot :
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