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While it's easy to push on water, it's hard to pull on water. When you drink soda through a straw, you may feel like you're pulling on the water, but you're not. What you are actually doing is removing some air from the space inside the straw and above the water, so that the air pressure in that space drops below atmospheric pressure. The water column near the bottom of the straw then experiences a pressure imbalance: the usual atmospheric pressure below it and less-than-atmospheric pressure above it. That imbalance provides a modest upward force on the water column and pushes it up into your mouth. So far, so good. But if you make that straw longer, you'll need to suck harder. That's because as the column of water gets taller, it gets heavier. It needs a more severe pressure imbalance to push it upward and support it. By the time the straw and water column get to be about 40 feet tall, you'll need to suck every bit of air out from inside the straw because the pressure imbalance needed to support a 40-foot column of water is approximately one atmosphere of pressure. If the straw is taller than 40 feet, you're simply out of luck. Even if you remove all the air from within the straw, the atmospheric pressure of the water below the straw won't be able to push the water up the straw higher than about 40 feet. To get the water to rise higher in the straw, you'll need to install a pump at the bottom, or a submersible pump. The pump increases the water pressure there to more than 1 atmosphere, so that there is a bigger pressure imbalance available and therefore the possibility of supporting a taller column of water. The submersible pump can boost the water pressure well above atmospheric and thereby push the water to the surface despite the great height and weight of the water column. Multiple stage submersible pumps are arranged in series so that the discharge from the first stage becomes the intake for the next stage with each successive stage adding its pressure to the previous one. Surface suction pumps are really only practical for water that's a few feet below the surface; after that, deep pressure pumps are a much better idea.
What else can I help you with?
How do you get an object to neither sink or float?
To get an object to neither sink nor float, you need to adjust its density to match that of the surrounding fluid. This can be achieved by creating a neutral buoyancy state through careful balance of the object's weight and the displacement of the fluid it's in. This is often achieved in neutral buoyancy tanks used for training astronauts or in the design of submarines and submersibles.
What are the types of mechanical work?
The types of mechanical work include static work, dynamic work, and intensive work. Static work refers to work done without motion, dynamic work involves movement, and intensive work focuses on the internal energy changes within a system.
How does input work and out put work affect the efficiency of a simple machine?
Input work is the work done on a machine, while output work is the work done by the machine. Efficiency of a simple machine is calculated as the ratio of output work to input work. The efficiency of a simple machine is high when the output work is close to the input work, indicating that the machine is converting most of the input work into useful output work.
What formula relates work and power?
The formula that relates work and power is: Power = Work / Time. Power is the rate at which work is done, which is the amount of work done divided by the time it takes to do that work.
The work that the simple machine does is called the work?
the work a machine does is the work output what it takes to do the work is the work input
What are some things submersibles do?
Submersibles work on undersea oilwells, recover practice torpedoes, search for sunken ships or things that have fallen off ships and sunk.
Do submersibles have people in them?
YES, most true submersibles have a 'pilot' and a systems operator. The submersibles that do not carry people are usually called ROV's or AUV's
How many submersibles are there?
Well, around 300. Some are out of order, and only a few can still work.
Why are submersibles valuable deep sea research?
Deep sea submersibles help get research from the ocean floor.
How big is a submersibles cargo hold?
Very small, if it even exists. Most submersibles do not carry cargo
What are the names of the famous submersibles?
alvin
How does a semi-submersible work?
Semi-submersibles are preferred for drilling to drillships because of their stability. They are only lowered in the water during drilling. Their ability to float on water makes transportation of rigs easier. The two types of semi-submersibles are bottle-type semisubs and column-stabilized semisubs.
Can submersibles collect data about shoreline cliffs?
no
Who uses submersibles?
Submersibles are commonly used by researchers and security forces such as the navy and the coast guard. The coast guard can use them to inspect the underside of ships for any smuggled items.
What are the advantages of submersibles over scuba gear?
One of the major advantage of personal submersibles over scuba gear is you can't feel the changing pressure while ascending and descending.
What are facts about Submersibles?
Submersibles are watercraft designed to operate underwater for scientific research, ocean exploration, and military purposes. They can reach depths that are not easily accessible by humans and are equipped with specialized instruments to study marine life, geological features, and underwater environments. Submersibles come in various sizes and shapes, from small remotely operated vehicles (ROVs) to large manned submersibles capable of carrying crew members to extreme depths.
What has most made the true exploration of the ocean possible?
Bathyscapes and submersibles have.
