there is a moderate La Niña which began developing in mid-2007. NOAA confirmed that a moderate La Niña developed in their November El Niño/Southern Oscillation Diagnostic Discussion and that it will likely continue into 2008. According to NOAA "Expected La Ni&#...
What is the period of oscillation of a simple pendulum if its bob is made of ice? What exactly is daylight savings time? A person goes to bed at 10.00 pm sharp every day. Is it an example of periodic motion? What is the period? If no, why?
What is an example of a surface wave? What is a king tide? What is the Gulf Stream? What are cardiology Q waves? Which is a longitudinal wave that requires a medium to move? What is oceanography? What is momentum flux? What is a sawtooth wave?
Forced oscillations occur when a body is subjected to an external periodic force, causing it to vibrate at the frequency of that external force rather than its natural frequency. 2. Explanation of the Concept: In a forced oscillation scenario, the oscillating body does not oscillate freely. Inste...
Matter in the most fundamental definition is anything that takes up space. Any object you can see, touch, or move by applying a force is matter. Most people probably remember from school that matter is made up of millions of billions of tightly packed atoms. Water, for example, is the co...
Typically on the oscilloscope, one would observe some type of oscillation on the output voltage reading. An example is shown below. A simple sine wave oscillation indicates some type of instability, driven by an excited pole or repeatedly excited transient during switching. ...
The operating state of the oscillator or the component parameters of the oscillation circuit are controlled by the input control voltage. The frequency of the VCO has a linear relationship with the control voltage. It is an important part of PLL....
A crystal oscillator is an electronic oscillator that makes use of crystal as a frequency selective element to obtain an inverse piezoelectric effect. It makes use of the mechanical resonance of the vibrating crystal, which has piezoelectric properties, in order to obtain an electric signal with a...
Density is the mass of a substance per unit volume. It is an important physical property of a material and is often used to identify and classify substances. Density meters are used to measure the density of liquids, gases, and solids. By measuring the density of a substance, it is possib...
Example:If an alternating current is said to have a frequency of 3 Hz (see diagram below), that indicates its waveform repeats 3 times in 1 second. Frequency is typically used to describe electrical equipment operation. Below are some common frequency ranges: ...