$$\text { The mean life (time constant) of rubidium-86 is } 26.8 \mathrm {~d} \text {. What is its half-life? }$$

question 126

Short Answer

$$\text { The mean life (time constant) of rubidium-86 is } 26.8 \mathrm {~d} \text {. What is its half-life? }$$

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Definitions:

Annually

Concerning an event that takes place annually.

Simple Interest

Interest calculated only on the principal amount, or on that portion of the principal amount that remains unpaid, not including interest on interest.

Rate of Interest

The percentage of principal charged by the lender for the use of its money.

Future Value

The value of an investment at a specific future date, based on its current value and anticipated growth rate.