Answer
a) $\frac{1}{440}$s
b) frequency is 440Hz
Work Step by Step
a) period is $\frac{2\pi}{k}$.
- $\frac{2\pi}{880\pi} = \frac{1}{440}$s
b) The frequency is the inverse of the period $p=\frac{1}{f}$, so the frequency in this example is $1\div\frac{1}{440}$ = 440Hz
