it is called keel
The propeller clearance of a ship, is the length a propeller extends below the hull (bottom) of a ship or boat.
About the same as the length of a piece of string..........
keel - the chief timber or steel element extending along the entire length of the bottom of a boat or ship and supporting the frame. It is also called the backbone of a ship.
The Volume of steel used should always be less than the volume of ship made out of it.The ratio could differ and hence there may be no specific ratio.The greater the (Ratio of Volume of ship:Ratio of Volume of steel used) say 3:1that means the ship can carry about 2 times the volume of the steel used.That means the water displaced would be 3 times volume of steel hence the water is applying the force on ship is 3 times weight of steel.***STUDY BUOYANCY
The clay boat (like a steel ship) displaces its own weight in the water. So, as long as the sides of the clay boat (or steel ship) is above the water level, it will float. A solid piece of clay will (like a stone) sink immediately.
The steel ship has a lot of air inside. The nail is solid steel.
The clay boat (like a steel ship) displaces its own weight in the water. So, as long as the sides of the clay boat (or steel ship) is above the water level, it will float. A solid piece of clay will (like a stone) sink immediately.
The shape of the ships hull causes the ship to displace a greater volume of water then a solid piece of steel with the same mass. A ship displaces a volume of water equal in weight to the submerged portion of the ship. Hope this helps!
The shape of the ships hull causes the ship to displace a greater volume of water then a solid piece of steel with the same mass. A ship displaces a volume of water equal in weight to the submerged portion of the ship. Hope this helps!
A steel ship floats because of the principle of buoyancy. The weight of the water displaced by the ship is equal to the weight of the ship itself, allowing it to stay afloat.
The density of the VOLUME of the ship is less than the density of the water it displaces (pushes out of the way). While the steel of a steel hulled ship is denser than water, the steel plus the air enclosed by the steel is less dense.
The ship has enough gas in it to keep it afloat.