Physics, 28.11.2019 04:31 helpmeplease95

At high altitudes, pilots and mountain climbers must breathe an enriched mixture containing more oxygen than the standard 21.0% found in ordinary air at sea level. at an altitude of 10500 m, atmospheric pressure is 0.237 atm. what oxygen concentration is required at this altitude if, with each breath, the same number of oxygen molecules is to enter the lungs as for ordinary air at sea level?

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 08:50, dijonmckenzie3

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Answers: 2

continue

Physics, 22.06.2019 12:30, promcafee8788

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j

Answers: 1

continue

Physics, 22.06.2019 22:50, bigbrogamer

Which of the following statements correctly describes a transformer?

Answers: 3

continue

Physics, 22.06.2019 23:30, 719729

Using a caesar cypher with an offset of three characters (a -> d, b -> e, z -> c), what would be the correct cypher text for the plain text "attack at dawn"?

Answers: 1

continue

You know the right answer?

At high altitudes, pilots and mountain climbers must breathe an enriched mixture containing more oxy...