The unit of frequency, also known as cycles per second.
The term Hertz is the preferred designation for cycles per second (CPS) and is used to describe frequency. Appliances in the US use 60 Hz, elsewhere it is 50 Hz.
Unit of measuring frequency that is equal to the number of cycles that occur in one second; written as Hz
The ratio of charge stored per increase in potential difference.
Electrical device used to store charge and energy in the electrical field.
The temperature at which a gas or vapor changes back to liquid.
The product of force and time for which force acts, also equal to the change in momentum.
Water vapor in the air, the weight of water vapor in the volume of the air.
S.I. Unit of electric current, one ampere is the flow of one coulomb of charge per second.
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American rock band formed in 1998 in New York City, including Julian Casablancas, Nick Valensi, Albert Hammond, Jr., Nikolai Fraiture and Fabrizio ...
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南斯拉夫
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