the overall density goes up.
The density will rise and submerge the submarine.
The density will rise and submerge the submarine.
Increases
A submarine pumps water out of its flotation tanks to decrease its overall density, allowing it to become buoyant and rise to the surface. By removing water, the submarine reduces its weight relative to the volume of water it displaces, which is governed by Archimedes' principle. As the submarine's density becomes less than that of the surrounding water, it ascends. This process is crucial for maneuvering between underwater and surface positions.
Submarines have variable density. When a submarine is in port, its overall density is less than that of water so some of it is above the surface of the water. They're made out of steel, which is more dense than water, but they're hollow; most of the volume of a submarine is air. To make a submarine able to dive, they pump water into tanks. By adjusting the amount of water, they can make the density equal to water's density, which allows the boat to stay at a certain depth without expending energy to hold it up.
When the tanks are full of water they force O2 out of the tanks. Once the tanks empty out the water they will fill with gasses that in the water such as O2 or Co2. These gasses are palpably less dense than water so the submarine rises. I hope that helps.
What is the question. -That is just a convoluted ststement
To rise again, the submarine's weight must be decreased. Air is pumped into the ballast tanks to force the water out. The buoyant force acting on the submarine now exceeds the submarine's weight. With positive buoyancy, the submarine rises. The less weight an object has the more its density decreases. Hope that kinda helps?
Filling the ballast tanks with water increases the submarine's density. This will cause it to sink into the water. Blowing out the water with air reduces it and the sub will return to the surface.
The cost of a naval submarine can vary significantly depending on its type and capabilities. For example, a modern attack submarine like the Virginia-class can cost around $2.7 billion, while ballistic missile submarines, such as the Ohio-class, can exceed $2 billion each. Additionally, the price may increase with advanced technology, systems, and customization. Overall, submarines represent a substantial investment for naval forces.
It is not the matter of density. When inflation tank is filled with water then the weight of submarine is more than the weight of the displaced water. So submarine is in the sinking condition. As water is pumped out then weight of displaced water which is known as Buoyant force would be more than the weight of the submarine. So it would float.
The duration a submarine can stay underwater varies based on its type and resources. Nuclear-powered submarines can stay submerged for several months, limited primarily by the crew's food supply and psychological factors. In contrast, diesel-electric submarines typically have a few days of underwater endurance before they need to surface or use a snorkel to recharge their batteries. Overall, the specific duration depends on the submarine's design and mission requirements.