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A scuba diver stays underwater for 30 minutes. How is this possible when the air tank is so small?​
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A scuba diver stays underwater for 30 minutes. How is this possible when the air tank is so small?​

User FlyingCat
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Answer:

Here's the answer:

Step-by-step explanation:

An average open-water certified diver using a standard aluminium 80-cubic-foot tank on a 40-foot dive will be able to stay down for about 45 to 60 minutes before surfacing with a safe reserve of air still in the tank.

Three Factors That Determine How Long a Diver's Air Will Last:

1. Tank Volume

2. Depth

3. Air Consumption Rate

User Adam Liss
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