A submarine has two main mechanisms that allow it to sink and return to the surface.
The submarine has dive tanks that can be filled with water to make the ship's weight the same as the water it displaces, or a little more. This causes the boat to sink. Air can be blown into those tanks to reduce the weight of the boat and it rises to the surface.
The second system uses the ship's propulsion and diving planes. These are fins (like wings) that can be tilted slightly up or down. When the ship is moving forward the diving planes are tilted to force the ship up or down. This is most effective when the dive tanks are perfectly balanced so that the weight of the boat exactly matches the weight of water outside.
A submarine
because the submarine has the water tank.when the tank is filled then submarine sink in the water.and when the tank is empty then submarine float in water.
put water in to let it sink... then put air into it to let it float...
both. they are able to control it
a submarine has a water tank. when the tank is filled then submarine sink in the water. and when the tank is empty then submarine float in water. use the formula density= mass / volume as mass increases(when the tank is full of water), the density of the submarine increases and it submerge into the water and vice versa.
The dnsity of a submerged submarine is the same as the density of the water if the density of the submarine was grater it will sink, if the density was less it would float.
A submarine is made from strong material so it can withstand the tremendous pressure at depths.
You drag the word "submarine" itself onto the submarine. Then you wait for it to sink.
This displacement of water creates an upward force called the buoyant force and acts opposite to gravity, which would pull the ship down. Unlike a ship, a submarine can control its buoyancy, thus allowing it to sink and surface at will.
it will float as long as it is not fully covered water.
does Arsenic float or sink
It takes on water to alter its density to greater than that of water, allowing it to sink, pumping the water out reverses the state, allowing it to rise.