How does flow and ebb happen ?
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The concepts of ebb and flow has a lot of contexts. Strictly speaking, the incoming tide is called a flow and the outgoing is called the ebb.\n\nTides on earth are caused by gravitional attraction with primarily the moon and to a lesser degree the sun. Water attracted to the moon is raised above the mean tidal level much like a bulge and the earth spins underneath this bulge. High tide corresponds to the highest point of the this tidal bulge and low tide is roughly 12 hours opposite.
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max flow against min. head , and visa versa , exceeding the pressure it can give , then the flow will go to zero
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This weblink will explain the differance between the 2\nhttp://www.erg.abdn.ac.uk/users/gorry/eg2069/async.html
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Flow\nFloss\nFloral\nFloran\nFlorances
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Grab your textbook or go to wikipedia.\n\nSee:\n\n1. Random Molecular Motion\n2. Diffusion\n\nThe simple answer is that atoms and molecules move constantly because they have energy, the amount of energy something has can be measured, in your example through heat. The less energy something has, the slower it will move and conversely the more energy something has the faster it will move. This is random molecular motion.\n\nDiffusion is the motion of these molecules from areas of abundance to areas scarcity. Molecules will diffuse until they are evenly distributed throughout a solution. Too illustrate this try to think of the molecules as marbles in a box, in the beginning they are all bunched up in one corner, but if you start to shake the box they will begin to bump against one another, at first rapidly because they are all bunched up. As time goes on they will spread out until they fill the entire box and are bumping up against each other at a rate that keeps them as evenly spread out as the box allows. The amount of energy you apply to the shaking will cause them to move faster or slower, or in your example, cold water will make the food coloring distribute slower and hot water will make them distribute faster.
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Okay, I'll bite.\n\nNo, it doesn't all come out at once, and it's not a steady stream either.  It's more like spurts.  Some days are heavy, some days are not.  You usually have a heavier flow during the first few days of menstruation, then it kind of tapers off.
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If the graph of Volume vs Pressure is a diagonal line with a positive slope, you should be able to conclude that the graph of Pressure vs Volume is also a diagonal line with a positive slope!\n\nSince we know that the gas has expanded, the work done by the gas is positive. Hence, W= corresponding area under Pressure vs Volume graph. If you make a sketch of the graph and indicate the intial and final pressures and volumes of the gas, finding W should not be too much of a problem!
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In convection parcels of material move. In conduction it is the energy that migrates.\n\nConvection can only involve heat. Conduction can involve heat and electricity.\n\nConduction happens in solids. Convection occurs in gases or liquids only.\n\nI'll get back to to you....
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It's bernoulli's principle. Fluids have a lower pressure when moving than when still. Since the water is moving past the spoons (which act like the wing of a plane) they feel a pull from the pressure drop and come together. Try it with a peice of paper sometime. Roll a piec of paper up so when you place it on a flat surface it looks like a curved bridge. then blow under it and it will collapse instead of blow away. It's pretty neet.
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Ooh, I studied this last semester. It changes phase. In other words, it changes from liquid (water) to gas (clouds) to liquid or solid (rain, snow, or hail). Then it repeats.
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its all to do with weight displacement and the volume of water
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its basically how u see the question.\nin fluid dynamics, eq of continuity specifies that a*v = constant so with inc in area, velocity decreases,hence pressure increses\n\nwhile in solids, the case is not the same , pressure = force/area hence assuming force constant with inc in area, pressure must dec
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http://computer.howstuffworks.com/bytes.htm if u goto that. \nit will explain it all.
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When you put an object in water--or any other fluid that is minimally compressable, like milk or oil or alcohol--the object takes up space.  Especially for fluids that are very runny--like water, in contrast to, say, old crank-case oil--the fluid will fill every nook and cranny available.  Since the water, or other non-compressable fluid, has to move out of the way for the object put in it, the apparent rise in the total volume of water-plus-object is due to the volume of the object.\n\nOf course, if the object FLOATS in water, you're in a whole new situation: the object will displace (move aside) exactly the amount of water that weighs what the object does.  That's a whole different discussion!
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countercurrent exchange of any kind occurs when you have a liquid or a gas flowing one way and the same liquid or gas next to it flowing the opposit way.  Like an arterie and a vein running alongside each other but flowing in different directions.  The arteries, rich in oxygen because they just came from the lungs, have a much higher oxygen content than the veins.  Diffusion occurs between the two vessels because of the higher concentration before the vessel reaches the final destination in the body.\n\nA more common example of countercurrent exchange is that of countercurrent heat exchange in mammals that frequent the ocean in the polar region.  It allows them to keep body heat close to their vitals without wasting it on their extremeties.
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This exact question is answered in the reference. Apparently it's partly that smaller particles fit into spaces vacated by larger particles during the shaking per answer 1, and partly the result of a circulation pattern that the shaking establishes. The circulatory flow is downward at the sides of the can and upward in the center. The downward flow is only in a thin layer, and the larger particles cannot enter this layer whereas they can ride the center up-flowing column with ease, so they remain on top.
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SURFACE AREA INCREASES\n\nIT'S VICE VERSA