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Sagot :
The oxygen supply will last for approximately 11.5 hours.
To solve this problem quickly, multiply the pounds of liquid oxygen by 344. This is the same as a litre of gas. Then, divide the litre flow by the total number of oxygen litres to determine how long the contents will last:
344 × 4 = 1376 L/2 = 688 minutes
To change to hours, divide by 60:
688/60 = 11.5 hours
What is a Respiratory system?
The respiratory system is made up of the organs and other parts of your body that are involved in breathing and exchanging oxygen and carbon dioxide.
When you inhale air through your nose or mouth, you begin to breathe. It passes down your throat and into your windpipe, which is divided into air passages known as bronchial tubes.
These airways must be open for your lungs to function properly. They should be free of inflammation, swelling, and excessive mucus.
The bronchial tubes divide into smaller air passages called bronchioles as they pass through your lungs. The bronchioles terminate in tiny balloon-like air sacs known as alveoli. There are approximately 600 million alveoli in your body.
To learn more on Respiratory system from the link:
https://brainly.com/question/24653210
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