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aquifer well
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∙ 12y ago
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What has to have more density for an object to float on water the object or water?
Normally the water - to float and object has to displace a volume of water equal to its mass. If its density is greater than that of water, the maximum mass of water it can displace is its own volume which, as the water is less dense that it, will have less mass than the object and it will sink. However, for small light objects the surface tension of water comes into play - it is possible to float a steel sewing needle (with a density greater than water) on water by gently dropping a clean needle on its side onto the water surface so that it does not break the surface tension. With a needle floating, adding a few drops of washing up liquid to the surface reduces the surface tension and the needle will then sink.
What is the pressure 100 m below the surface of the sea water of denisty 1150kg m 3?
The pressure at 100 meters below the surface of sea water with a density of 1150kg is 145.96 psi.
The entire area of earth's surface is 510 million square kilometers. What is a good estimate of the area of earth's surface that is covered by water?
About 71%
How could it be possible that an object with a density greater than that of water could float in water?
There are two ways to make an object with a density greater than water float on it: 1) reduce its density, for example by hollowing it out or adding further structures with a density [much] less than that of water so that it can displace a volume of water equal to its own weight and still have some of its structure above the surface of the water; or 2) Use the surface tension of water so that the object floats - dropping a steel sewing needle on its side very gently onto water will prevent it breaking the surface tension of the water and it will float, until such time as the surface tension is broken, eg by adding a few drops of washing up liquid or agitating the surface, when the needle will sink. (The needle needs to be clean.)
Two thirds of the earth is coverd by?
Two thirds of the Earth's surface is covered by water.
What forms where the water table intersects with the ground surface?
well's occurs when the water underground meets the surface
When a perched water table intersects the surface on a hillside the result is?
a spring
What feature originates where the water table intersects the land surface?
A spring
Spring form where?
Springs form where the water table intersects the ground surface
What are you likely to find where the water table intersects the land surface?
You'll find a lake or a moor depending on the runoff properties.
How does the water forms?
Water table is formed by the rain water.i.e.,when rain falls ,the rain water drains into the earth surface and this water forms the water table.
When the water table is found at the surface it forms what?
its actually for the hydrosphere
What forms as a result of the water table meeting Earths surface?
a spring
How do springs form?
A spring is formed by water passing through permeable rocks until eventually it hits a spot near enough to the earth's core that heats the water makes it come out the top. It comes out because when hot, the water expands and, as we all know, hot substances rise, so it blows! :D This is why water from springs is hot.
What is the name of the top surface of the zone of saturation?
the zone of aeration
Where are the water tables located?
Water tables are the underground boundary between the water saturated rock and soil layer and the unsaturated or dry rock and soil layer. Where a water table intersects the surface a lake, pond, river, stream, spring, etc. forms on the surface at the same level as the water table. A well is made by digging a hole down to below the water table at that location and the bottom of that hole will fill with water to the same level as the water table.
What forms when the water table is exposed the surface?
When the water table is at the surface, we can see a spring form (or an oasis). A pond, lake, swamp or some form of standing water might appear. An estuary (brook, stream, river, etc.) could also form, depending on conditions, including the geology and geography of the area.To read a bit more about the water table, use the link.
