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[a] Other useful derived quantities can be specified in terms of the SI base and derived units that have no named units in the SI, such as acceleration, which has the SI unit m/s 2. [1]: 139 A combination of base and derived units may be used to express a derived unit.
Plot of Si(x) for 0 ≤ x ≤ 8π. Plot of the cosine integral function Ci(z) in the complex plane from −2 − 2i to 2 + 2i. The different sine integral definitions are = = .
The ICRU sphere is a theoretical 30 cm diameter "tissue equivalent" sphere consisting of a material with a density of 1 g·cm −3 and a mass composition of 76.2% oxygen, 11.1% carbon, 10.1% hydrogen and 2.6% nitrogen. This material is specified to most closely approximate human tissue in its absorption properties.
2 148 and 2/3 of a year: A superstitious unit of time used in astrology, each of them representing a star sign. terasecond: 10 12 s: About 31,709 years. megaannum: 10 6 yr: Also called "megayear". 1000 millennia (plural of millennium), or 1 million years (in geology, abbreviated as Ma). petasecond: 10 15 s: About 31 709 791 years. galactic year ...
The five people who were found deceased included two adults, a 42-year-old male, a 38-year-old female, an 11-year-old boy, a 9-year-old girl and a 2-year-old girl. Police noted that their ...
1 Bq = 1 s −1. A special name was introduced for the reciprocal second (s −1) to represent radioactivity to avoid potentially dangerous mistakes with prefixes.For example, 1 μs −1 would mean 10 6 disintegrations per second: (10 −6 s) −1 = 10 6 s −1, [4] whereas 1 μBq would mean 1 disintegration per 1 million seconds.
The couple have three kids, a 10-year-old boy and daughters ages 7 and 2. “He just loved us. He was such a great daddy. Such a great daddy. I just hate that my babies are not going to be able to ...
Crumble about 2/3 of the cookie dough into the pan and press into an even layer, like a crust. Use a tablespoon to dollop the jam on top, then spread it out evenly, leaving about 1/4 inch bare ...