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Because submarines need air.

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What happens to the buoyant force of a submerged submarine when water is taken into its tanks and it dives?

When water is taken into the tanks of a submerged submarine, its total volume increases, displacing more water and increasing its buoyant force. This increases the upward force acting on the submarine, causing it to rise in the water or maintain a shallower depth.


How does change in buoyancy affect the function of a submarine?

A change in buoyancy affects a submarine's ability to rise and sink in the water. By adjusting the amount of water in its ballast tanks, the submarine can control its buoyancy and depth in the water. This is essential for navigating through different depths and maintaining stability.


Why does a submarine can sink and float in water?

A submarine can sink and float in water because it has ballast tanks that can be filled with water to make it sink and with air to make it float. By adjusting the amount of water and air in the ballast tanks, the submarine can control its buoyancy and stay submerged at a desired depth or rise back to the surface.


What happens to density if an objects mass remains constant but its volume is increased?

If an object's mass remains constant but its volume is increased, then the density of the object decreases. This is because density is calculated by dividing an object's mass by its volume, so increasing the volume while keeping the mass constant leads to a lower density value.


What happen to the density if the mass is increased?

If the mass of an object is increased while its volume remains constant, the density of the object will also increase. Density is defined as mass divided by volume, so an increase in mass with constant volume leads to a higher density.

Related Questions

When water fills a submarine's flotation tanks the overall density of the submarine will...?

The density will rise and submerge the submarine.


When water fills a submarines flotations tanks the overall density of the submarine?

The density will rise and submerge the submarine.


What does a submarine alter to rise and fall in water?

A submarine alters its buoyancy to rise and fall in water by adjusting the amount of water in its ballast tanks. When the tanks are filled with water, the submarine becomes heavier and sinks; when air is pumped into the tanks, the submarine becomes lighter and rises. This process allows the submarine to control its depth in the water column effectively.


How much is the volume of the hull of a kilo-class submarine?

The volume of the hull of a Kilo-class submarine is approximately 1,300 to 1,500 cubic meters. This volume can vary slightly depending on the specific variant of the Kilo-class submarine. The Kilo-class is designed for anti-submarine and anti-surface warfare, and its hull shape is optimized for underwater operations.


If the number of particles of gas is increased in a container does the gas pressure rise?

Volume = Mass/Density. In a larger container the mass of the gas remains unchanged, the density decreases so the volume increases.


When a submarine pumps water out of its floatation tanks its density decreases and it floats?

Yes, when a submarine boat pumps water out of its flotation (not floatation) tanks, the submarine should rise.


When a submarine pumps water out of its floatation tank its density decreases and it floats. Why does its density decrease?

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?


How do fluids help ballast chambers on a submarine?

A submarine actually controls its weight by allowing water to enter or exit hollow chambers in its hull. These chambers are called ballast tanks. Ballast is anything carried in a ship to give stability. When water is allowed to flood into a submarine's ballast tanks, the weight of the submarine increases. When this increased weight exceeds the submarine's buoyancy, the submarine will sink. To allow the submarine to rise, air is pumped into the ballast tanks. The air forces out the water, reducing the weight of the submarine. The submarine then becomes lighter, buoyancy increases, and it floats to the surface. A submarine can also be made to "float" underwater at any depth by adjusting the amount of water weight in its ballast tanks.


Why does a submarine pumps water out of its flotations tanks and density decrease?

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.


When a submarine is underwater does the buoyant force depend on the weight of the submarine?

Yes, the buoyant force acting on a submerged submarine depends on the volume of water displaced by the submarine, not directly on its weight. According to Archimedes' principle, the buoyant force is equal to the weight of the water displaced, which is determined by the submarine's submerged volume. However, for the submarine to be neutrally buoyant and maintain a certain depth, its weight must equal the buoyant force.


What happens to the buoyant force of a submerged submarine when water is taken into its tanks and it dives?

When water is taken into the tanks of a submerged submarine, its total volume increases, displacing more water and increasing its buoyant force. This increases the upward force acting on the submarine, causing it to rise in the water or maintain a shallower depth.


A balloon has a volume of 456 mL at a pressure of 1.1 ATM It is taken under water in a submarine to a depth where the air pressure in the submarine is 3.3 ATM what is the volume of the balloon in mi?

I think the voulume is required in ml , So the answer will be 152ml...