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[20] [21] It has an atomic mass of 15.003 0656 (5), and a half-life of 122.266(43) s. It is produced through deuteron bombardment of nitrogen-14 using a cyclotron. [22] 14 N + 2 H → 15 O + n. Oxygen-15 and nitrogen-13 are produced in air when gamma rays (for example from lightning) knock neutrons out of 16 O and 14 N: [23] 16 O + γ → 15 O ...
The aliquot sum of 16 is 15, within an aliquot sequence of four composite members (16, 15, 9, 4, 3, 1, 0) that belong to the prime 3-aliquot tree. Sixteen is the largest known integer n, for which + is prime. It is the first Erdős–Woods number. [2] There are 16 partially ordered sets with four unlabeled elements. [3]
Nitrogen-13 and oxygen-15 are produced in the atmosphere when gamma rays (for example from lightning) knock neutrons out of nitrogen-14 and oxygen-16: 14 N + γ → 13 N + n 16 O + γ → 15 O + n. The nitrogen-13 produced as a result decays with a half-life of 9.965(4) min to carbon-13, emitting a positron.
Here are 15 jobs for 13-year-olds. ... $15-$16 per hour. A 13-year-old can paint structures like fences and sheds or even interior or exterior walls. ... Taste of spring invades US to close out ...
There are 2 out of 15 chances in favour of blue, 13 out of 15 against blue. In probability theory and statistics , where the variable p is the probability in favor of a binary event, and the probability against the event is therefore 1- p , "the odds" of the event are the quotient of the two, or p 1 − p {\displaystyle {\frac {p}{1-p}}} .
In all Germanic languages, 13 is the first compound number; the numbers 11 and 12 have their own names.; The Romance languages use different systems: In Italian, 11 is the first compound number (undici), as in Romanian (unsprezece), while in Spanish and Portuguese, the numbers up to and including 15 (Spanish quince, Portuguese quinze), and in French and Italian up to and including 16 (French ...
Named after the number of tiles in the frame, the 15 puzzle may also be called a "16 puzzle", alluding to its total tile capacity. Similar names are used for different sized variants of the 15 puzzle, such as the 8 puzzle, which has 8 tiles in a 3×3 frame. The n puzzle is a classical problem for modeling algorithms involving heuristics.
13: 24 November Claim of Thrones: The Bush Brewery Adam Martin 22.13% 55.93% Adam Ola 5: Joel Ola — 14: 25 November Claim of Thrones: Gates to Hell Adam Wayne 41.17% 28.02% Adam Wayne 6: Lisa Scarlett — 15: 26 November Panic Pipeline Wayne — 16: 27 November Pick 'n' Critz Adam Martin 20.12% 27.61% 17: 28 November Hot Sc-Air Ballooning ...