in the water
Pink dolphins are like submarines because they never go in the water, dolphins and submarines alike are have waterphobia and never go in the water. Pink dolphines also are lesbians like submarines
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.
As submarines go deeper they are surrounded by more and more pressure from the water arround them. There are not currently any submarines that can withstand that amount of water pressure.
Water resistance shapes refer to the design configurations of objects that minimize drag and turbulence when moving through water. Common shapes include streamlined forms, like teardrops or fish bodies, which allow for smoother flow and reduced resistance. These shapes are crucial in applications such as boat hulls, submarines, and aquatic vehicles, enhancing efficiency and speed. The principles of hydrodynamics guide the creation of these shapes to improve performance in water.
Most submarines have propellers that spin, pushing them forward. A few smaller research submarines use a water jet for propulsion.
Submarines are built with a special design that allows them to be faster underwater. Submarines can be used during a war as a way to sneak up to enemy lines in the water, but still stay hidden.
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.
To keep water from leaking in.
Sonar
No submarines do not explore the atmosphere. atmosphere means air. Sub means under, Marine means water.
Submarines have to be very strong because when they are deep under water, there is a great deal of pressure exerted on them by the water. A hollow container underwater is not like a fish underwater, since the fish's body is filled with fluids (blood or other bodily fluids) that are no more compressible than the surrounding water is. Air behaves differently, it is compressible, so the hull must be strong.