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air pressure
because if air is lighter than water and you are trying to get a tank full of water to sink you would need a whole lot of air so by compressing lots of air into the tank it makes the tank heavy so it sinks
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∙ 13y ago
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How are submarines used today?
Submarines todaee are used for underwater exploration,funn,new life underwater.
What are underwater vessels?
Submarines?
What is the antonym for submarine?
Seeing how submarines are designed to move underwater, the antonym that makes the most sense would be airplane.
Do people float in submarines?
No.
Does submarines float?
Yes, they does.
The reason submarines can detect other underwater objects is largely due to which?
Submarines have sonars.
What do you call a ship that goes underwater?
They are called submarines
Are ironclads and submarines the same thing in 1861?
Ironclads are not the same thing as submarines. Ironclads do not go underwater completely even though the majority of their body may be underwater.
How are dolphins used in war?
To detect underwater mines and submarines.
How far can submarines dive underwater?
Straight to the bottom of the ocean.
What was the name given to the invention that allowed submarines to be detected underwater?
Sonar
How can nuclear submarines travel underwater?
Just like diesel submarines travel underwater, but for much longer periods as the nuclear engine does not consume the oxygen in the air. The older diesel submarines were limited to running on batteries or using a schnorkel to get air for the engines when underwater, so usually they traveled on the surface like regular ships only submerging to prepare for an attack with torpedoes on passing enemy ships. The nuclear submarines can practically travel underwater forever, until they need to be resupplied with food for the crew.
