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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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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.
