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These boats are heavy, but they're also huge, and not just a big, solid chunk of metal. There is plenty of "space" in a boat or ship. This space is filled with air, which we know is lighter than water.This leads to the discussion of two concepts; displacement and buoyancy.
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Displacement refers to the volume of water the ship displaces (moves out of the way) or the weight of the water displaced - depending on context.
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Buoyancy - as "discovered" by Archimedes is what actually makes the boat/ship float. This is the upward force applied by the water. (The water is trying to fill the void created when the ship displaces the water, so it's pusing against the hull.)
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The boat only displaces water equal to its weight. If you've taken a statics class this is easy to figure out. Forces have to be balanced or else the object moves until equilibrium is achieved. The weight of the vessel is equal to the weight of the water the hull is displacing. However the boat has reserve buoyancy - typically on a small boat that means that the vessel sits high enough in the water that adding extra weight (thereby lowering the boat in the water) does not cause the edges of the hull to sink dangerously close to the water level. In larger vessels there are water tight tanks, called ballast tanks, which can be filled with water or emptied to adjust the weight of the vessel. this maintains the displacement of the vessel even as it changes the weight of cargo it is carrying.
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Displacement.What is the quickest way to get by ship from the medditterrenean sea to the indian ocean?
Because the amount of buoyancy contained within them is greater than the weight of the materials used in their construction plus their cargo.What's the difference between a small nose and a large nose? is it suppose to be regal?
Because Yuri Gellar thinks about it very hard!Does anyone know a name for my boat?
Or maybe it's displacement, the reason anything floats
The size of them doesn't really matter . They displace more than their own weight of water.
Is there any reason a HIN (Hull Identification Number) would not match the claimed boat year?
Using a simplistic example, if you lay a flat tray on water it will float, if you hold it edge on and let go it will sink.All to do with weight and surface area ratio.
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it is simple buoyancy, it is the key for all material to float. did you know that in cape giradeau mo. they have annual event their and it is the cement canoe race on the Mississippi river. that is pretty amazing to get concrete to floatHow to repair a hole in a fiberglass boat when it continues to seep water?
The volume in terms of cubic capacity of water needs to exceed the weightWhere to find info on sailing yachts late 19th and early 20th century paticularly owners and crews ?
Simple. They weigh less than the water they displace.I need Someone to do timing on my 1967 mercury outboard.?
Archimedes principle states that a body will float if it displaces more than it's own weight of water...How much does a 100 foot house boat cost?
In other word, if an object weighs one pound, but it is very dense, and only dsiplaces half a pound of water, it will sink.
If it has a low density... for example, it is hollow - and displaces more than on pound of water, it will float... because the water exerts a pressure, known as "upthrust", proportional to the amount of displacement.
Ships are hollow, so they are, overall, lighter than water.. thus, they float.
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Try floating a teacup in the kitchen sink. Add some freight to it - an egg etc. As you add the egg or other load, notice it go down a little more into the water.fatmac - in WW2 they made floating harbours out of concrete - float them to where they are needed and then open a hole in the bottom andthey sink and become very stable. Mulberry harbours. I think they were called.
Their hulls have secret compartments which are filled with Helium.
Water is heavy. Big ships are measured in the amount of water they displace. For instance, a WWII aircraft carrier displaced 45,000 tons of water. A more modern carrier displaces more than 100,000 tons of water. Since the water that they displace weighs more than the ship it will float. Tankers have it easier since their cargo is lighter than water. Oil and gasoline only weighs 7 pounds per gallon while water weighs 8 pounds per gallon.
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Because, as Archimedes observed, no matter what the mass, or the material of the object, so long as upward forces = downward forces, then the body will float.Edelbrock carburetor question?
(Note: upward forces are increased by buoyancy. The most buoyant shape is one that has vertical sides and a flat bottom.)
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