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Buoyancy is extremely important in submarines. To sink or dive, they must achieve a very delicate 'negative' buoyancy. It could be very dangerous to sink too fast. Water is pumped into the submarines ballast tanks to make them sink, then later is blown out by compressed air to give them 'positive' buoyancy and make them rise. - While cruising underneath the surface it's very important to achieve a state of 'neutral' buoyancy allowing the sub to rise or fall according to the movements of it's 'planes' ( a wing-like device similar to aircraft 'elevators') . The 'planesman 'on any submarine has a very important job of keeping it at assigned depth.
To complicate this, the sea is not all the same - under the surface there are currents flowing almost like rivers, and 'saline' layers of different densities of water. All of these can change the depth of a neutrally balanced boat.
What else can I help you with?
What kind of buoyancy do submarines have when they are resting on the surfce of the ocean?
Positive Buoyancy. When submarine submerges, it initially uses negative buoyancy to submerge, and then levels out to neutral buoyancy.
What is a submarines buoyancy?
A submarine has a variable buoyancy due to it's ballast tanks. When a submarine submerges, it fills it's ballast tanks with water which causes negative buoyancy. When a submarine surfaces, it pumps the water out of the ballast tanks thus giving it positive buoyancy.
What do Archimedes principal help to explain?
Archimedes principal explains buoyancy. The principle makes its use in ships and submarines.
How or where is buoyancy used in real life?
Buoyancy is used for many life examples, submarines, swimmers would like to know about it, and the army would use it. Those are some life examples that of real life that buoyancy would be used! Hope this helps!
Why does a submarines density decrease when it pumps air out?
It doesn't pump air out; it forces water out of its ballast tanks to increase its buoyancy.
What kind of science fair invention can you make by using recyclables?
When science fair invention you can do is to make submarines out of empty plastic soda bottles. This project will explain buoyancy and how it plays an effect in the movement of submarines.
How is buoyancy useful?
Buoyancy is useful for objects or substances that are floating or submerged in a fluid. It allows boats and submarines to float or stay afloat in water, and also helps hot air balloons and blimps to rise and stay airborne. Understanding buoyancy is important for designing structures that need to float or be submerged in fluids.
Ships float submarines sink?
Submarines can go downward because they flood their buoyancy tanks with water. This reduces the buoyancy of the sub, allowing it to go down. To rise again, the water is pumped out of these tanks.
How do submarines stay afloat?
Submarines stay afloat by using a combination of buoyancy and ballast control. When they want to surface, they use compressed air to force water out of ballast tanks, making the submarine lighter and allowing it to float. To dive, submarines take in water into these tanks, increasing their weight and causing them to sink. By adjusting the amount of water in the ballast tanks, submarines can maintain their desired depth in the water.
Why is liver the main organ for sharks buoyancy if it only gives off oil in not so large quantities while stomach can hold and compress air and use them like submarines?
Liver is much larger in sharks as compared to stomach.Liver not only helps in buoyancy but also keeps shark upright. there are other factors which are also involved in buoyancy.
How do you use buoyancy?
Buoyancy is used by objects to float or rise in a fluid, such as water or air, due to a force acting in the opposite direction of gravity. To utilize buoyancy effectively, objects can be designed with specific shapes or materials to displace enough fluid to stay afloat. It is a fundamental principle in designing boats, submarines, and hot air balloons, among other applications.
Do fish have air bags?
Only when they drive really fast submarines...Actually, fish have what is called a swim bladder; this is what helps them with buoyancy, and to stay upright in water. When there is a problem with their swim bladder (or they are constipated!) they will have buoyancy problems, and in many cases, get stuck swimming upside-down.
