Final answer:
The time it takes for the ship to complete a full cycle of pivoting is 20 seconds, as the period is the reciprocal of the frequency, which is 0.05 Hz.
Step-by-step explanation:
The frequency of the pivoting ship is 0.05 Hz. In order to calculate the time taken for one complete cycle of the ship, we can use the formula:
Time period = 1/frequency
Substituting the given frequency value into the formula:
Time period = 1/0.05 = 20 seconds.
Therefore, it takes 20 seconds for one complete cycle of the ship.