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  2. Radian - Wikipedia

    en.wikipedia.org/wiki/Radian

    Definition. One radian is defined as the angle subtended from the center of a circle which intercepts an arc equal in length to the radius of the circle. [6] More generally, the magnitude in radians of a subtended angle is equal to the ratio of the arc length to the radius of the circle; that is, , where θ is the magnitude of the subtended ...

  3. Rotational frequency - Wikipedia

    en.wikipedia.org/wiki/Rotational_frequency

    Rotational frequency, also known as rotational speed or rate of rotation (symbols ν, lowercase Greek nu, and also n), is the frequency of rotation of an object around an axis. Its SI unit is the reciprocal seconds (s −1 ); other common units of measurement include the hertz (Hz), cycles per second (cps), and revolutions per minute (rpm).

  4. Radiant flux - Wikipedia

    en.wikipedia.org/wiki/Radiant_flux

    A flow chart describing the relationship of various physical quantities, including radiant flux and exitance. In radiometry, radiant flux or radiant power is the radiant energy emitted, reflected, transmitted, or received per unit time, and spectral flux or spectral power is the radiant flux per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency ...

  5. Radian Introduces Version of Mortgage Insurance Rate ... - AOL

    www.aol.com/2013/01/16/radian-introduces-version...

    Radian Introduces Version of Mortgage Insurance Rate App for AndroidTM Mobile Version of 'Radian Rates' Available for Android, iPhone® and iPad® PHILADELPHIA--(BUSINESS WIRE)-- Radian Guaranty ...

  6. Normalized frequency (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Normalized_frequency...

    Normalized frequency (signal processing) In digital signal processing (DSP), a normalized frequency is a ratio of a variable frequency ( ) and a constant frequency associated with a system (such as a sampling rate, ). Some software applications require normalized inputs and produce normalized outputs, which can be re-scaled to physical units ...

  7. Angular frequency - Wikipedia

    en.wikipedia.org/wiki/Angular_frequency

    Angular frequency (or angular speed) is the magnitude of the pseudovector quantity angular velocity. [1] Angular frequency can be obtained multiplying rotational frequency, ν (or ordinary frequency, f) by a full turn (2 π radians): ω = 2π rad⋅ν. It can also be formulated as ω = dθ/dt, the instantaneous rate of change of the angular ...

  8. Radian per second - Wikipedia

    en.wikipedia.org/wiki/Radian_per_second

    The radian per second (symbol: rad⋅s−1 or rad/s) is the unit of angular velocity in the International System of Units (SI). The radian per second is also the SI unit of angular frequency (symbol ω, omega). The radian per second is defined as the angular frequency that results in the angular displacement increasing by one radian every second.

  9. Coriolis frequency - Wikipedia

    en.wikipedia.org/wiki/Coriolis_frequency

    The Coriolis frequency ƒ, also called the Coriolis parameter or Coriolis coefficient, [1] is equal to twice the rotation rate Ω of the Earth multiplied by the sine of the latitude . The rotation rate of the Earth (Ω = 7.2921 × 10 −5 rad/s) can be calculated as 2 π / T radians per second, where T is the rotation period of the Earth which ...