Final answer:
The natural frequency is the frequency at which a system naturally oscillates without external forces or damping. Resonance occurs when a periodic force matches this frequency. To calculate it, however, specific details about the system are needed.
Step-by-step explanation:
The natural frequency of a system is defined as the frequency at which the system oscillates when it is not affected by any external driving forces or damping. This concept applies when the system is allowed to vibrate freely. For a pendulum or any harmonic oscillator, such as a spring-mass system, specifying the natural frequency is essential for understanding its motion and behavior under different conditions. In scenarios where a periodic force is applied to a system at its natural frequency, the phenomenon is known as resonance, which causes the amplitude of the oscillations to increase significantly. To calculate the natural frequency of the system given the parameter p3.29, more context or relevant mathematical relationships or system descriptions would be needed. Without additional information, it is not possible to provide an exact value for the natural frequenc