QUESTION

ANSWER

An alternating$-$current $($ AC $)$ source supplies a sinusoidally varying voltage that can be

$2(60Hz)$

described with the function $v(t)=$Vcos$(t),$ where $V$ is the maximum voltage, $$ is the angular frequency, and $t$ is the time. If the frequency of this source is $60$ Hz $,$ what is $$ equal to$?$

$\frac{2}{60(Hz)}$

$cos[2(60Hz)t]$

$cos[\frac{2}{60(Hz)}t]$

I DON'T KNOWYET