what is submarine ? how can it be made to dive in water and come to the surface of water ?
Answers
Explanation:
It is providgd with water tanks. When submarine is to dive, water is filled in water tanks and it is made heavier and average density of submarine becomes greater than the density of sea water and it sinks. To make the submarine rise to the surface of water, water tanks are emptied and average density.
WHAT IS SUBMARINE ?
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability.Submarines are also used in tourism and undersea archaeology.
How can it be made to dive in water and come to the surface of water ?
When submarine is to dive, water is filled in water tanks and it is made heavier and average density of submarine becomes greater than the density of seawater and it sinks. To make the submarine rise to the surface of water, water tanks are emptied and average density.