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The density of pure water is approximately 1000 kg per cubic meter.
It isn't, strictly speaking, useful to compare the density of a boat to the density of water. A boat can be constructed of material considerably denser than water (consider a steel battleship or aircraft carrier) and still float. What's important is that the boat must be able to displace a volume of water equivalent to the weight of the boat, without allowing the water to enter the boat.
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The answer your teacher is looking for: "The density of the water is greater than the density of the boat.". This answer is not correct in all cases.
If the actual displacement of the boat (sans air) is used to determine density, all steel boats would be denser than water, and most motor boats would be denser than water. A boat which (sans air) is less dense than water cannot fully sink.
Now for the next phase of comprehension: the boat has a degree of buoyancy not just in the water, but also in the air. To measure the total bouyancy (which is 0 while floating), you must understand that the mass of the displaced air (above water level) and the mass of the displaced water (below water level) is the sum of the mass of the air (below water level) and the boat (without air). Were the air denser than the boat, the boat would lift (sans surface tension) from the water and float away in the air.
What else can I help you with?
If a boat is sinking because it has to much cargo How does density compare to the density of water?
If a boat with too much cargo is sinking, it means the combined density of the boat and cargo is greater than the density of water. Water has a density of 1 g/cm^3, so anything with a greater density will sink. To stay afloat, an object must have a density less than that of water.
Why will a hollow boat made of plasticine float?
A hollow boat made of plasticine will float because the overall density of the boat is lower than the density of water. The buoyant force acting on the boat is greater than its weight, allowing it to float on the water's surface.
If you know the width length and mass of a boat how can you calculate how deep it will sink in water?
Well, darling, to calculate how deep a boat will sink in water, you need to consider its volume and density. The volume can be calculated by multiplying the length, width, and depth of the boat. Then, you can divide the mass of the boat by its volume to find the density. Finally, you can use the density of water to determine how deep the boat will sink. Voila!
How do you calculate the buoyancy of a cardboard boat?
To calculate the buoyancy of a cardboard boat, you need to determine the weight of the water displaced by the boat. This can be calculated by multiplying the volume of the submerged part of the boat by the density of water. The buoyant force acting on the boat is equal to the weight of the water displaced.
Why does the water level go down when a boat sinks?
When a boat is floating on water it displaces water equal to its weight(Archimedes Principle). As the density of water is less than boat so water displaced is greater than volume of boat. When the boat sinks water displaced is equal to volume of boat. So less water is displaced in 2nd case and consequently water level goes down. Note - relation between volume(v) mass(m) and density(d) : d = m/v
Why do boats with water sink?
When the density of entire assembly (boat, peoples, products, equipments, water etc.) has a density greater then the water density the boat is sinking.
If a boat is sinking because it has to much cargo How does density compare to the density of water?
If a boat with too much cargo is sinking, it means the combined density of the boat and cargo is greater than the density of water. Water has a density of 1 g/cm^3, so anything with a greater density will sink. To stay afloat, an object must have a density less than that of water.
Why does water density affect boats floating?
The water density is higher than the boat's therefore it floats on the water.
How does a boat not sink?
the boat has equal or less density than the water. :P
What part of the boat makes it float?
The boat floats because the entire boat - including any air contained within - has a total density less than the density of the water.
Why will a hollow boat made of plasticine float?
A hollow boat made of plasticine will float because the overall density of the boat is lower than the density of water. The buoyant force acting on the boat is greater than its weight, allowing it to float on the water's surface.
Does the boat sinks faster in hot water or cold water?
A boat will sink at the same rate regardless of the water temperature. The sinking rate is primarily determined by the density of the water and the weight of the boat.
If you know the width length and mass of a boat how can you calculate how deep it will sink in water?
Well, darling, to calculate how deep a boat will sink in water, you need to consider its volume and density. The volume can be calculated by multiplying the length, width, and depth of the boat. Then, you can divide the mass of the boat by its volume to find the density. Finally, you can use the density of water to determine how deep the boat will sink. Voila!
How are density and the ability of a boat to float related?
According to Archimedes' Principle (which he described in his treatise On Floating Bodies) a body immersed in a fluid experiences a buoyant force equal to the weight of the fluid it displaces. In the case of a floating boat, if the average density of the boat and the air within its hull is less than the density of the water, the mass of the water displaced as it settles into the water will be equal to the to the total mass of the boat but it will displace a volume less than the volume of the boat, thus enough of the boat will remain above the water to allow it to float.
How do you calculate the buoyancy of a cardboard boat?
To calculate the buoyancy of a cardboard boat, you need to determine the weight of the water displaced by the boat. This can be calculated by multiplying the volume of the submerged part of the boat by the density of water. The buoyant force acting on the boat is equal to the weight of the water displaced.
Why does the water level go down when a boat sinks?
When a boat is floating on water it displaces water equal to its weight(Archimedes Principle). As the density of water is less than boat so water displaced is greater than volume of boat. When the boat sinks water displaced is equal to volume of boat. So less water is displaced in 2nd case and consequently water level goes down. Note - relation between volume(v) mass(m) and density(d) : d = m/v
A boat will float higher in the Atlantic Ocean than in the Potomac River because ocean water has -?
Greater density
