Pressure is the result of a force distributed over a(an) _____? Can anyone please fill in the blank ...?
149710
AREA\n\nPressure (symbol: p) is the force per unit area acting on a surface in a direction perpendicular to that surface. Mathematically:    P=F/A\nwhere:\np is the pressure \nF is the normal force \nA is the area.
838516
Go to this page and look at the second picture.\nhttp://www.grc.nasa.gov/WWW/K-12/WindTunnel/Activities/Pascals_principle.html\n\nThe water in both tubes is the same amount. When the little box goes down, it forces up the big box. \n(Go here for a demonstration.) http://webphysics.davidson.edu/physlet_resources/bu_semester1/c23_pressure_pascal.html\n\nNow look at the letters on the picture. (W, A, D, F). Note which ones are ones and twos. (F1, F2, etc.) Now look at the formulas below. Don't be scared! Just compare the letters in the picture to the letters in the formula. Do you see which ones are equal? Think about what the letters mean in the formulas.\n\nNow, after you know how to describe the picture, try to read everything on the page.\nOnce you've done that, try the exercises below.\n\nYou have just looked at the hydraulic pump.\nFor another example, go here: http://www3.fhs.usyd.edu.au/bio/fluids/pascal/pp1.html\n\nThe reason why this all works is because the pressure is the same in all directions. (See here for a cool picture) http://www.ac.wwu.edu/~vawter/PhysicsNet/Topics/Pressure/HydroStatic.html\n\nHope this helps. Just look at the pictures, it helped me. Good luck on your quiz!
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Frictional force, f = uR\n\nwhere u - frictional constant\n(it is actually "miu", but I can't typr it out.)\n\nand R - the normal/reaction force (which is the reaction caused by the action of the object's weight.)
859502
What you are likely looking is W=F*D \n\nWork = A Force * A Distance\n\nCheck out wikipedia for additional help:\nhttp://en.wikipedia.org/wiki/Mechanical_work
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
768046
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
70735
The upthrust force equals the weight of the water displaced.\n\nIf d = density of the water,\nV = volume displaced,\ng = acceleration due to gravity,\n\nThe force of upthrust is,\nF = d*V*g
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I assume, since this is in "physics", that you are referring to the frictional force exerted on an object by a fluid through which it travels.\n\nIf, by "definition", you were wondering what it is, then the above paragraph should provide a simple answer. For more information, check out:\nhttp://en.wikipedia.org/wiki/Drag_%28physics%29\n\nIf, on the other hand, you were wondering about the mathematical definition of drag, the equation is\n\nFd = -1/2 * (rho) * v^2 * A * Cd\n\nwhere Fd is the force of the drag, rho is the density of the fluid through which the object in question travels, v is the velocity of the object in question in relation to the fluid, A is roughly the area of the object as viewed from the line of motion (e.g. a bullet's area would be a circle), and Cd is the drag coefficient, which is dependent on the surface material, texture, and shape of the object.\n\nFor more information about this formula, see:\nhttp://en.wikipedia.org/wiki/Drag_equation
380084
The answer is Pressure\n\n10 pts plz! im only level 1!
943484
I expect that you have the data on stretch as a result of tension. \na) The object is just at rest. Tension, T = W = m*g.\n\nb) T = W + m*a\n\nc) Tmax = W + m*a
238622
it is the normal force per area...\nyou can visit this site:\nhttp://en.wikipedia.org/wiki/Pressure
611013
Oh good grief.  If it's anything like what I've just done it'll include velocity, centrepetal forces, magnetic fields, friction, gravity, forces generally, working out the mass of something and the speed at which it will fall, balances with pivot points, static electricity, AC & DC electricity, transformers, vectors and so on and so on.  It's quite hard but it's maths based so if you like maths, you should be ok.  I wish you luck.
654890
The greater the pressure difference, the stronger the pressure gradient, hence the stronger the pressure gradient force.\n\nPressure gradient force is responsible for triggering the initial movement of air, which in turn leads to the development of wind. It is directed from higher to lower pressure at right angles to the equal pressure surfaces, isobars. The closely spaced isobars in a weather chart indicate steep pressure gradients, strong forces, and high winds, while widely spaced isobars indicate gentle pressure gradients, weak forces, and light winds.\n\nBernoulli's Principle............
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1. the object is pushed up by the weight of its equivalent volume of water, 4-3.2=0.8l\nSo the object's density is equal to its mass divided by its volume:\n4kg/0.8l=4kg/0.0008m3=40,000kg/8m3=5000kg/m3\n\n2. the force decreases with the square of distance, so it will be 3^2=9 times smaller, which is 6N.
1156730
force=mass*acceleration\nforce/area=pressure (usually measured in p.s.i. [pounds per square inch])
43019
force is the total amount of force exerted... pressure is the amount of force exerted over a specific area. the formula is P=F/A the units are expressed in Newtens per meters squared N/m^2
655647
Force is a vector and it can be -ve.\n\nThrow a ball up. If you take its displacement upwards to be +ve then the gravity pulling it down is in the opp. direction and hence -ve. Thus the force acting on it is -ve.\n\nIts all a question of taking references.