Want this question answered?
A torpedo from a German U-boat (submarine)
submarine
the u boat is a submarine. it was made to hit and sink British ships
To change the buoyancy of the boat and allow it to rise and sink in the water.
You drag the word "submarine" itself onto the submarine. Then you wait for it to sink.
i suppose you mean the u-boat (unterseeboot) it's a submarine that the Germans used to sink the allies ships they even used them to sink the Lusitania which had American passengers on it and they all died.
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.
The Confederate submarine 'H L Hunley' was the first submarine to sink an enemy ship
Old boat got sink
Boats displace water (push it out of the way). The boat weighs less than the water it displaces, so it floats on top. If the boat weighed more than the water is displaces, it would sink- which is how a submarine goes under water.
ballast. the sub takes in and releases water to change the bouancy of the entire boat making it either sink or float respectively.