hertz??
That depends on what kind of a system the local oscillator is part of. In a simple AM receiver, it's typically 455 KHz above the frequency of the incoming signal of interest. In a consumer FM radio, that figure is 10.7 MHz above. In a 'legacy' analog microwave receiver, it's almost always spaced 70 MHz from the received carrier, and since the ubiquitous advent of split-mount digital microwave equipment, with the RF system clamped to the antenna, there's no telling any more ... you always have to look in the book (if that information is even included in the book).
The amplitude is the maximum displacement. The frequency is the number of peaks (or troughs) that occur in unit time (usually a second).
Vibrations are oscillations that occur about an equilibrium point. The "period" is the time it takes for one full vibration of a particle in a medium.
The period of a wave is the time it takes for one complete cycle to occur, while the frequency is the number of cycles that occur in one second. The relationship between period and frequency is inverse, meaning that as the period increases, the frequency decreases, and vice versa. This can be mathematically demonstrated by the equation: frequency = 1/period.
frequency
It is called the frequency. The SI unit is the Hertz. One Hertz is one cycle per second.
frequency
frequency
It is the frequency.
That's the (frequency of the vibrations) multiplied by the (number of seconds in the time interval)
sciesmic waves ;]
Earthquakes
after shocks
When vibrations from someone or something occur the ear captures the vibrations if it is close enough.
frequency
The chance that a given event will occur, usually expressed between the number 0 (will not occur) and 1 (will occur) is called probability.
Vibrations produced by breaking of rocks are called vibrations, earthquakes are produced by these, earthquakes occur when the plates under the earths crust are built with stress and then collapse, causing them to move inward towards each other and cause large virations, producing earthquakes. 8th grade question.