an object floats w/ half its volume beneath the surface of the water. the wieght of the displaced water is...?
829185
2000N is the weight of the object...\nOr is that too obvious?
985162
This is a problem in open channel flow in Fluid Mechanics, not a pre-calc problem.  A proper solution needs calculus and a better description of the harbor bottom.\n\nAn intuitive set-up based on the information you've given would be \nh = (e^-kt)[(10 - 9) - 9sin(2πt/15)]\nwhere h is in feet, t is in minutes, and k is a damping constant, probably on the order of 1/15.
648278
a tab floats and stops the water
537774
The archimedes principle is any object wholly or partly immersed in fluid will be buoyed up by a force equal to the weight of the fluid displaced by the object.
433818
Water provides more force than air because it is\ndenser and thus has more mass:\n\nF = ma \n\nd = m / volume
63147
Archimedes' principle states that the buoyant force experienced by a submerged object is equal to the weight of the liquid displaced by the object. Experimentally this appears in the fact that the submerged object apparently weighs less by an amount equal to the weight of the liquid displaced. The buoyant force can be expressed as:\n\nFb = W(air) - W(liquid) = dgv \n\nwhere d is the density of the liquid, g is the acceleration of gravity and v is the volume of the immersed object (or the immersed part of the body if it floats).
367774
Water is denser than air (or sunlight).
872931
It's not based on the object weight (or mass) ... it's based on the object volume.\n\nI'm going to assume your cylinder is heavier than water and will be completely submerged.\n\nVolume = (pi)*(radius)*(radius)*(height)\n= 3.14159 * 19 * 19 * 33\n= 37425 in3 = 21.658 ft3\n\nVolume of water (at 25 C = 77 F) = (ft3) * (7.47)\n= 21.658 * 7.47\n= 161.788 gallons\n\nYour cylinder will displace approximately 162 gallons.
64876
Buoyancy is simple.  If the weight of the liquid moved by insertion of an object into the liquid is greater than the weight of the object, it will float.  That is why the size of ships are measured in displacement.  The "Displacement" refers to the weight of water that is "moved out of the way".\n\nThink of it this way - take two identical spheres with the exact same outer material and thinkness.  One is hallow, and one is filled with lead.  Of course, we know that the one filled with lead will sink?  Why?  Because it weighs more than the water that is being moved out of the way.  How do you make it neutrally bouyant?  Simply fill it with enough lead that equals the weight of the water displaced by the sphere.\n\nThis is called Archimedes Law of Bouyancy.  Google/Yahoo search it and you should find some illustrations to help explain.
60322
Archimedes principle on bouyancy states that a body submerged in a fluis is subjected by an unbalance force called bouyant force equal to the weight of the displaced fluid. By formula, Fb = Vd\n;Fb = bouyant force\nV = volume of te dispaced fluid\nd = density of the fluid\n\nDimensional Analysis,\nFb must had a unit of force; Kg, N, lb\nV is volume; cu.m, cu.ft\nd is density; kg/cu.m. and so on.\n\nFb(Kg) = V(cu.m.)*d(Kg/cu.m.)\n\nu'll get Kg.
319097
water will get deeper
1043479
...because their density is less than water density (1000 Kg/m^3).\n\nIf the density of an object is less than the density of the water, it floats on the surface of the water. If the density of the object is equal to the density of the water, the object floats anywhere inside the water. If the density of the object is more than the density of the water, the object sinks to the bottom.
156716
in reality, it is the surface tension (adherance of molecules to one another) and density of the fluid\nbecause the question does not state that the object is suspened in the fluid\n\notherwise the force acting to keep an object buoyant would need to equate and thus counteract the objects weight (which is the force of gravity pulling said object down)\n\nmass X volume = density which is a factor in determining a force acting upon the object; a force working to cause the object to disperse within the less dense fluid or conversely the fluid to compress and colapse the object\n\nSo the author of the question given is expecting the answer: weight
740680
D. spillting of water\n\n100%
705113
On what? Water? Clarify--you're too vague by trying to be creative. \n\nOil floats on water.
1122613
You must already understand the displacement description so here's an attempt to physically understand the process.\n\nGravity pulls everything with mass  towards the center of the Earth.  This includes water and even air.  This is what creates air pressure and water pressure within a column of the fluid.  The force towards the center of the Earth is called the Weight.  Weight is simply the mass of an object multiplied by the acceleration of gravity (32.2 feet per second).\n\nMolecules in fluids can move around very easily.  They are constantly being pulled downward by gravity.  Generally, they are blocked by other fluid molecules already below them but they pile up and apply a pressure to the poor suckers below them.  The molecules at the bottom of the stack are under tremendous pressure in very deep portions of the ocean because they have to support the weight of the molecules above them.  (This also creates a sea level air pressure of 14.7 pounds per square inch)\n\nShips weigh less than the water they displace.  Gravity is pulling that ship down, trying to get it to the center of the Earth.  Once the weight of the water equals the weight of the ship, the water pushes back with enough force to keep it afloat.  Water molecules can flow easily.  When they begin to weigh more than the effective weight of the ship, they will flow beneath it and push the ship upward.
976396
1 G, I dont see how it can be zero otherwise it would float off!\n\nOK call me an idiot...I have just read the other answers lol