The simplest way to put it:
If an object is denser than the liquid it is put in, it sinks. (An iron nail is very much denser than water). If it is less dense than the liquid its put in (a boat has a lot of air in it and is spread across a lot of water, if you calculate its density its less than water. Which is also why dry sponges float because they have a lot of air in them, but if it gets wet enough, it will have a lot of water plus the actual sponge so at least for some sponges it will eventually sink if you keep soaking it with water.)
I think it gets more complex as you do have to factor in gravity and other variables, but this is still true.
I think you have the question the wrong way round. Big ships made of iron or steel do not sink because they are hollow. A piece of iron sinks because it is denser than water. Clearly, people wouldn't build big ships if they were going to sink straight away.
The ship has a streamlined shape which causes it to displace more water than it's own weight. The iron nail does not have a streamlined shape so it floats
Sure ships sink. Titanic for example and hundreds of less famous boats every year. They can also disappear....it is a big ocean out there. Not all ships that go missing are found.
Different things. For example, the Titanic sank because it hit an iceberg. Other ships sink because the weight on it is too heavy. It also depends on how sturdy the ship or boat is. If it is a handmade small boat, jump on it- and it will sink. if it is medium or big, someting like a rock or an iceberg can sink it.
it shows that there is space between the model and iron is big and it attracts
Yes. Combat aircrafts with torpedoes, bombs and really powerful missiles can sink aircraft carriers faster because they can do much harder damages and pack a big wholes into bigger ships.
How big is the kitchen sink
Big Iron was created in 1959.
ships can get over one million centimeters
Ships can be over one million cm
It really depends on how big the sink is.Well how big is your sink ?
This depends on your own piece of cheese.
No. The relationship between mass and displacement does. Think about ships and boats. If had a big block of steel with the same mass a cargo ship and put it in the water, then it would sink. The ship is shaped so that it displaces enough water to keep itself afloat. If you cut a hole in the bottom of the ship, and then weld that material the side of it, then you haven't changed the mass of it, but it will sink.
You buy the water bombs in Kakariko Village then you go to Zora's Domain and don your iron boots while in the water and sink to the bottom and place a water bomb beside the big rock and it blows up.