A device used in radiation therapy for cancer contains
A device used in radiation therapy for cancer contains 3.10×10-1 g of cobalt 2760Co (59.9333819 u). The half-life of 2760Co is 3.36 yr. Determine the activity of the radioactive material. (In Bequerel or Curie)
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a device used in radiation therapy for cancer contains 310times10-1 g of cobalt 2760co 599333819 u the half-life of
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