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It depends on the submarine type and hull design.
Older WWI and WWII Fleet submarines were specifically designed as surface ships with limited submergence capability - they primarily ran on the surface with their diesel engines, and submerged using their battery powered electric motors when attacking a surface vessel. This hull design made gave them a lower water resistance on the surface, but much higher underwater. Their speed underwater was almost half of what they could do on the surface.
With modern submarines, the opposite is true. Submarines today are specifically designed for lower water resistance (higher speeds) underwater than they are on the surface. Top speed for most boats on the surface might approach 20 knots, but underwater they can do over 30 knots. The old Russian ALFA class submarines were known to do 45 knots submerged.
What else can I help you with?
Does fluid friction move a submarine through water?
Fluid friction is defined as occurring between layers within a fluid that are moving relative to each other. It is a resistance so it does not move a submarine through water.
Is the marginal benefit of a glass of water large or small?
water is necessary for life, is the marginal benefit of water is large or small?
Is excess water reabsorbed from the small or large intestine?
The small intestine absorbs food and the large intestine absorbs water.
If a submarine is moving backwards what forse is being caused?
A submarine rotates its turbines in the opposite direction of normal rotation to cause water to be drawn towards the submarine. The force causing the mass to be moved toward the bow of the submarine is counteracted by the force drawing the submarine backwards.
How does water pressure affect a submarine?
When a submarine goes farther down in the water, the water pressure becomes greater. If the submarine goes to far, pipes can explode and let in water, or it can implode the submarine
Is water absorbs in the small or large intestine?
large
What happens to the magnitude of the fluid friction acting on a submarine as the submarine?
As a submarine moves through water, the magnitude of fluid friction, or drag, increases with speed due to the turbulent flow of water around its hull. At low speeds, the drag is primarily laminar and lower, but as the submarine accelerates, the flow becomes turbulent, leading to greater resistance. Additionally, factors such as the shape of the submarine and its surface roughness also influence the overall drag experienced. Thus, as the submarine increases its velocity, the fluid friction acting on it tends to increase significantly.
Can water exert pressure on a submarine?
Yes, water exerts pressure on the hull of the submarine.
How can resistance be decreased?
Aerate the water: pump lots of small air bubbles into it.
A sentence with submarine in it?
A submarine is only used under water.
How does water enter the submarine?
Water enters the submarine by letting water out not into its ballast tanks it enters from the flagura to the magura.
The buoyancy force on a submarine submerged in the ocean equals what?
The buoyancy force on a submerged submarine equals the weight of the water displaced by the submarine. This force acts in the opposite direction to the gravitational force, allowing the submarine to float or sink in the water.
