1.

:  I-131 has a half-life of 8.07 days. Calculate the rate constant for the decay of I-131.​

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Answer:

Explanation:

SEWING MACHINE oil REDUCES wear on all of the moving parts of the machine in question, while also PREVENTING rust and unnecessary friction. you'll want to do your best to oil your sewing machine semi-regularly, so the machine KEEPS working safely and effectively

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