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F is the sixth letter of the Latin alphabet. F may also refer to: ==Science== *Fahrenheit *Farad, a unit for electric capacitance *Faraday constant *Fluorine (symbol), a chemical element *Focal length of a lens * *f-number (sometimes called f-ratio, f-stop, or written f/), the focal length divided by the aperture diameter *Force *Form (botany) *Frequency *Bioavailability, which is expressed as the letter "F" in medical chemistry equations *F band, the range of radio frequencies from 3 to 4 GHz *f-block, a group of elements on the periodic table elements *F region, part of the ionosphere *Haplogroup F (Y-DNA), a patrilineal haplogroup *Haplogroup F (mtDNA), a matrilineal haplogroup *Phenylalanine, abbreviated as Phe or F *Helmholtz Free Energy, also abbreviated as A *The electromagnetic field tensor in electromagnetism * * This is often generalize to include the field tensors of other interactions, as in i.e. the gluon field strength tensor. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「F (disambiguation)」の詳細全文を読む スポンサード リンク
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