Chapter 4, Problem 12T

To determine

(a)

To find:

The function $m\left(t\right)=m_0{2}^{-\raisebox{1ex}{$t$}\!\left/ \!\raisebox{-1ex}{$h$}\right.}$ that models the amount of $\text{K}\text{r}$ remains in the canister after t seconds.

To determine

(b)

To find:

The function $m\left(t\right)=m_0{e}^{-rt}$ that models the amount of $\text{K}\text{r}$ remains in the canister after t seconds.

To determine

(c)

To find:

The function $m\left(t\right)=m_0{e}^{-rt}$ that models the amount of $\text{K}\text{r}$ remains in the canister after 1 minutes.

To determine

(d)

To find:

The time required to reduce the amount of $\text{K}\text{r}$ to $1\mu \text{g}\left({10}^{-6}\text{g}\right)$.