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  2. Breathing - Wikipedia

    en.wikipedia.org/wiki/Breathing

    In dry air, the P O 2 at sea level is 21.0 kPa, compared to a P O 2 of 19.7 kPa in the tracheal air (21% of [100 – 6.3] = 19.7 kPa). At the summit of Mount Everest tracheal air has a total pressure of 33.7 kPa, of which 6.3 kPa is water vapor, reducing the P O 2 in the tracheal air to 5.8 kPa (21% of [33.76.3] = 5.8 kPa), beyond what is ...

  3. 6 breathing exercises to ease stress and anxiety - AOL

    www.aol.com/news/box-breathing-other-breathing...

    6 breathing exercises to ease stress and anxiety. A. Pawlowski. September 13, 2024 at 6:46 PM. 1 / 2. 4 breathing techniques to ease your anxiety in minutes. The Good Brigade. Welcome to Start TODAY.

  4. Divisibility rule - Wikipedia

    en.wikipedia.org/wiki/Divisibility_rule

    To test for divisibility by D, where D ends in 1, 3, 7, or 9, the following method can be used. [12] Find any multiple of D ending in 9. (If D ends respectively in 1, 3, 7, or 9, then multiply by 9, 3, 7, or 1.) Then add 1 and divide by 10, denoting the result as m. Then a number N = 10t + q is divisible by D if and only if mq + t is divisible ...

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  6. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    The air entering the lungs also has a total pressure of 33.7 kPa, of which 6.3 kPa is, unavoidably, water vapor (as it is at sea level). This reduces the partial pressure of oxygen entering the alveoli to 5.8 kPa (or 21% of [33.7 kPa – 6.3 kPa] = 5.8 kPa).

  7. Respiratory rate - Wikipedia

    en.wikipedia.org/wiki/Respiratory_rate

    A fibre-optic breath rate sensor can be used for monitoring patients during a magnetic resonance imaging scan. [1] Respiration rates may increase with fever, illness, or other medical conditions. [2] Inaccuracies in respiratory measurement have been reported in the literature. [3]

  8. Division (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Division_(mathematics)

    For example, 26 cannot be divided by 11 to give an integer. Such a case uses one of five approaches: Say that 26 cannot be divided by 11; division becomes a partial function. Give an approximate answer as a floating-point number. This is the approach usually taken in numerical computation.

  9. 24 (puzzle) - Wikipedia

    en.wikipedia.org/wiki/24_(puzzle)

    The original version of 24 is played with an ordinary deck of playing cards with all the face cards removed. The aces are taken to have the value 1 and the basic game proceeds by having 4 cards dealt and the first player that can achieve the number 24 exactly using only allowed operations (addition, subtraction, multiplication, division, and parentheses) wins the hand.