Author: Microsoft Corporation. The VBX file extension is used to refer to custom control files created in the Visual Basic programming code. VBX custom control files are written with internal interpretive language code that can run immediately after they are written.uthor: Microsoft Corporation. The VBX file extension is used to refer to custom control files created in the Visual Basic programming code. VBX custom control files are written with internal interpretive language code that can run immediately after they are written.
Natural phenomenon. A natural phenomenon is not an engineered event manufactured by humans, although it may affect them. Common examples of natural phenomena include sunrise, the weather, decomposition, free fall and erosion.atural phenomenon. A natural phenomenon is not an engineered event manufactured by humans, although it may affect them. Common examples of natural phenomena include sunrise, the weather, decomposition, free fall and erosion.
Definition of Natural Frequency. The natural frequency is the rate at which an object vibrates when it is not disturbed by an outside force. Each degree of freedom of an object has its own natural frequency, expressed as Ï n (omega subscript n). Frequency (omega) is equal to the speed of vibration divided by the wavelength (lambda), . Other equations to calculate the natural frequency depend upon the vibration system. Natural frequency can be either undamped or damped, depending on whether the system has significant damping.