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PhyCalc quantity frequency info

### Engineering friendly unit aware unicode compatible online calculator

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The SI unit for frequency is: Hz (hertz)

The dimension of frequency is T^{-1}.

Frequency is the 2nd derivative of time with respect to time.

Frequency is dimensionally equal to activity referred to a radionuclide.

A common formula symbol for frequency is: *f*

Frequency is the reciprocal of time.