submarine
Submarine
A submarine.
a boat
a submarine
10.82 miles
25 miles.
89 ft
hm
25
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.