Inverse second
In today's world, Inverse second has become a topic of great relevance and interest to a wide audience. Since its emergence, Inverse second has captured the attention of experts and fans alike, generating passionate debates and conflicting opinions. Its impact has extended to various areas, from politics and society to popular culture and entertainment. In this article, we will explore different aspects related to Inverse second, analyzing its evolution over time, its implications in the current world and future prospects. Inverse second continues to be a topic in constant evolution, and its influence never ceases to surprise those who delve into its complexity.
| inverse second | |
|---|---|
| Unit system | SI |
| Unit of | frequency |
| Symbol | s−1 |
| Conversions | |
| 1 s−1 in ... | ... is equal to ... |
| SI units | 1 Hz |
The inverse second or reciprocal second (s−1), also called per second, is a unit defined as the multiplicative inverse of the second (a unit of time). It is applicable for physical quantities of dimension reciprocal time, such as frequency and strain rate.
It is dimensionally equivalent to:
- hertz (Hz), historically known as cycles per second – the SI unit for frequency and rotational frequency
- becquerel (Bq) – the SI unit for the rate of occurrence of aperiodic or stochastic radionuclide events
- baud (Bd) – the unit for symbol rate over a communication link
- bit per second (bit/s) – the unit of bit rate
However, the special names and symbols above for s−1 are recommend for clarity.[a][b]
Reciprocal second should not be confused with radian per second (rad⋅s−1), the SI unit for angular frequency and angular velocity. As the radian is a dimensionless unit, radian per second is dimensionally consistent with reciprocal second. However, they are used for different kinds of quantity, frequency and angular frequency, whose numerical value differs by 2π.
The inverse minute or reciprocal minute (min−1), also called per minute, is 60−1 s−1, as 1 min = 60 s; it is used in quantities of type "counts per minute", such as:
Inverse square second (s−2) is involved in the units of linear acceleration, angular acceleration, and rotational acceleration.
See also
Notes
- ^ "The SI unit of frequency is given as the hertz, implying the unit cycles per second; the SI unit of angular velocity is given as the radian per second; and the SI unit of activity is designated the becquerel, implying the unit counts per second. Although it would be formally correct to write all three of these units as the reciprocal second, the use of the different names emphasises the different nature of the quantities concerned."[1]
- ^ "(d) The hertz is used only for periodic phenomena, and the becquerel (Bq) is used only for stochastic processes in activity referred to a radionuclide."[2]
References
- ^ "Units with special names and symbols; units that incorporate special names and symbols".
- ^ "BIPM – Table 3". BIPM. Retrieved 2012-10-24.