Answer:
frequency is 1/4 and wavelength 1280 m, whiche is 1.28 * [tex]10^{3}[/tex]
Explanation:
frequency is [tex]\frac{1}{t}[/tex] where t is the period, we can tell that the period happens once every 4 seconds. This means that the cycle repeats itself once every 4 seconds. Substituting into the formula we get 1/4.
Now the equation of the wavelength is [tex]\frac{v}{t}[/tex], where v is given as 320 and t we found as 1/4. This means that we times it by 4 to get the answer.
Hope this helps.
