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Removing water from a boat
No it's not the Hull is the outside of the boat that contacts the water I believe the floor is called the sole.
a bucket.
Yes the U-Boat can stay under water.
Buoyancy affects a boat by keeping it "on" the water, not "under" the water.
No because the firt tendancy of the boat going in reverse is to dig the back end of the boat under water, witch causes the boat to go under water and sink.
Example 1 A boat is stuck under a railway bridge. It cannot move forward or backward. The only way to remove the boat from under the bridge is to sink it. This can be done by drilling holes on the sides of the boat. When water enters the boat and occupies the air space, it become denser and sink.
a under water boat hmm... titanic (kidding) submarine
U = Unter (in German) = under so is a boat that goes under (the water) namely a submarine
the name of a boat that goes underwater is called a SUBMARINE.
Submarine
A submarine.