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It was a World War II Pillbox (gun housing) that fell into the sea a long time ago.
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∙ 12y ago
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How is the volume o f the water displaced by the granite block compare to the volume of the granite block?
The amount of water displaced by the block is the volume of the block. so (volume of water with block in it)-(original volume of water)= volume of block
A block of wood is floating in water The weight of the part of the block above water is one-third of the block What is the weight of the water displace by the block of wood?
The weight of water displaced by the floating block of wood is exactly equal to the weight of the ENTIRE block of wood, regardless of how much of the wood is above the water level.
Is 0 degrees celsius too cold to pour concrete?
0 oC is freezing point of water. So while you can pour at this temperature you need to take some precautions.
What force is needed to keep a wooden block of density 720 kg and volume 1.0 m3 under water?
Using the rough rule-of-thumb: 1 liter of water = 1 kg.-- The block sinks until it has displaced 720 liters of water. At that point,the mass of the displaced water has the same weight as the mass of theblock has, and the block sinks no further.-- The block still has 280 liters of its volume above water. If that were submerged,another 280 kg of water would be displaced.-- The additional 280 kg of water would weigh (280 x 9.8) = 2,744 newtons (617.3 pounds).That much additional buoyant force would fight the effort to submerge the block.It takes an additional 2,744 newtons (617.3 pounds) to keep the block under water.
How do you convert 1m3 of concrete to kilogram?
To do this you would need to know the density of unmixed concrete (i.e what is the weight of concrete per unit of volume), and the ratio of concrete to water required. (I assume you mean 1m^3 of mixed concrete (with water) to kg, rather than the unmixed concrete powder). With these bits of information the conversion is relatively simple, however I don't know where to find this information from. Alternatively, just the density of mixed concrete would suffice.
What is definition of water absorption of concrete block?
Water absorption of concrete block is a measure of the amount of water that can be absorbed by the block when it is immersed in water or subjected to moisture. It is an important property as excessive water absorption can lead to durability issues such as freeze-thaw damage and reduced strength. The water absorption of concrete block is typically expressed as a percentage of its weight.
Is concrete building block a solution?
yes it is because there are more than mixtures in concrete example there is water in concrete so yes the there are more than 2 substances thatis mixed so a concrete block is a solution.
What are the ingredients for concrete solid block?
Concrete block is made from Portland Cement, water, sand and aggregate. The aggregate may be in the form of flyash or cinder from burnt coal.
Would a block with holes in it sink in water?
It depends on the density of the block and the water. If the block's overall density is greater than the water, it will sink. However, if the block is less dense than water, it will float, regardless of the holes.
Why does a concrete canoe float but a concrete block sink?
The block isn't aerodynamic, so it sinks. The boat, no matter what it's constructed with, will be able to float if it's in a shape that will be aerodynamic in water.
Is a concrete block a pure substance or mixture?
Concrete is defined as a mixture of cement, sand, and gravel.
What is the boiling point of concrete?
Concrete is a mixture of materials like cement, water, and aggregates, so it does not have a specific boiling point. However, if concrete is exposed to high temperatures, the water within the concrete will start to evaporate around 212°F (100°C) and the concrete can begin to break down at higher temperatures depending on its composition.
Is a concrete block made out of solute and solvent?
A concrete block is made from a mixture of water, cement, and aggregates such as sand or gravel. In this case, water acts as the solvent and cement serves as the solute which, when mixed together, forms a solid structure that hardens over time.
Can a concrete boat float?
Yes- because they are not a solid block of concrete- they are hollow with a large air space. The weight of the water displaced is greater than the weight of the hollow concrete hull, and it will float.
What is the weight of a standard concrete masonry block?
The dry weight of a medium density concrete block (215 x 450 x 100mm thick) is approximately 7.5Kg --- There are many different sizes, shapes and mixes used to make concrete block. Additionally the weight varies if the unit is wet or not since they absorb water. I see varying weights of 35 to 55 pounds for 8x8x16 block.
Can cement bricks and concrete bricks be used together in the same wall construction?
I think that they can, if they are both used correctly, the cement and concrete bricks can be put together in the same wall construction. :) <><><> I think you need to define some words. Concrete is made by mixing portland cement, water, and sand/crushed stone. There ARE no "cement bricks" Traditional bricks are made by mixing clay, shale, and water, and baking them in a kiln (oven) at high temperatures. And yes, regular clay brick and concrete brick/ block are frequently both used in a wall. Together.
Is the weight of a block of concrete submerged under water and hung by a scale heavier or same as on land?
It is lighter by 64 pounds per cubic ft. of its volume
