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The half -life of cobalt-60 is 5.25 year...

The half -life of cobalt-60 is 5.25 years. How long after a new sample is delivered, will the activity have decreased to about one third `(1//3)` of its original value-

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The half-life of cobalt - 60 is 5.26 years. Calculate the % activity remaining after 4 years.

The half-life of cobalt - 60 is 5.26 years. Calculate the % activity remaining after 4 years.

The half-life of cobalt - 60 is 5.26 years. Calculate the % activity remaining after 4 years.

The half-life of cobalt - 60 is 5.26 years. Calculate the % activity remaining after 4 years.

The half-life of cobalt-60 is 5.26 years. Calculate the percentage activity remaining after 4 years.

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The half-life of cobalt 60 is 5.25 yrs. After how long does its acitvity reduce to about one eight of its original value?

The half-life of cobalt 60 is 5.25 yrs. After how long does its acitvity reduce to about one eight of its original value?

The half-life of cobalt 60 is 5.25 yrs. After how long does its acitvity reduce to about one eight of its original value?