Final answer:
To determine the frequency of a pendulum, we need more information, such as the period.
Step-by-step explanation:
The frequency of a pendulum can be calculated using the formula:
frequency = 1 / period
Where the period is the time it takes for the pendulum to complete one full swing. In this case, the question provides the length of the pendulum (5.00 cm) but does not provide the period. Therefore, we need more information to calculate the frequency.