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How do submarines control buoyancy?

Scarlett Brown | 2023-06-06 05:02:00 | page views：1652
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Julian Martinez

Works at the International Finance Corporation, Lives in Washington, D.C., USA.
To control its buoyancy, the submarine has ballast tanks and auxiliary, or trim tanks, that can be alternately filled with water or air (see animation below). When the submarine is on the surface, the ballast tanks are filled with air and the submarine's overall density is less than that of the surrounding water.
2023-06-14 05:02:00
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Carter Davis

QuesHub.com delivers expert answers and knowledge to you.
To control its buoyancy, the submarine has ballast tanks and auxiliary, or trim tanks, that can be alternately filled with water or air (see animation below). When the submarine is on the surface, the ballast tanks are filled with air and the submarine's overall density is less than that of the surrounding water.
Diving and Surfacing - How Submarines Work | HowStuffWorks
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