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The number of times the balance oscillates per second. The frequency is indicated in hertz (Hz). Modern movements running at 28,800 vibrations per hour have a frequency of 4Hz .

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Dragan Zivanovic

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Флојд Мејведер

Born Floyd Sinclair on February 24, 1977, an American professional boxer. He is a five-division world champion, where he won nine world titles in five ...