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What is the difference between statics and dynamics in economics?
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What are the two divisions of mechanics?
The two main divisions of mechanics are Statics and Dynamics.
What is meant by fluid mechanics?
Fluid mechanics is the study of fluids and the forces on them. (Fluids include liquids, gases, and plasmas.)A longer answerFluid mechanics is a branch of physics which deals in the study of Properties of Fluid(that is gases or liquids). Fluid mechanics broadly classified in to two types:1. Fluid statics2. Fluid dynamicsFluid statics deals with the properties of fluid at rest and fluid dynamics deals with the properties of fluids in motion. Fluid dynamics is further divided in to two branches a:1. Hydro dynamics2. Aero dynamicsHydro dynamics deals with the properties of liquids in motion , where as Aero dynamics delas with the properties of gases in motion.Computational fluid mechanics is another branch of fluid mechanics where it uses numerical methods and algorithms to solve the problems related to fluid flows.
How do you know a force acts on a falling object?
Before you let it go, the weight you feel in your hand is the force. After falling a long way, the increasing resistance due to the air finally balances the force. So there are now 2 forces, gravity + air resistance, with a total of zero. So there are forces, but they add up to nothing, and hence constant speed. When you hold it in your hand, the speed is also constant, zero, the force provided by you balances gravity. Acceleration is a sign of unbalanced force. Constant velocity is a sign of balanced force. This led to the idea by Monsieur d'Alembert, that in any situation involving forces and accelerations, in your Force Vector Diagram you can add a further component equal to the negative of (Mass x Acceleration) and then solve the problem as a problem of statics ("d'Alembert's Principle). Thus for a falling object in a vacuum (no air resistance) you have weight force F downwards, and mass times acceleration g UPwards, so as a "statics" problem, F=mg.
Where does the gravity of the moon become stronger than that of the earth so that an object in space between the two is drawn towards the moon instead of earth?
First, this isn't a simple "statics" problem. For example, the Moon is orbiting Earth. Also the Earth-Moon distance varies (elliptical orbit). (The distances mentioned below are, strictly speaking, distances from the centres of the Earth and Moon.) However, a simple answer is: at about a tenth of the Earth-Moon distance from the Moon. Here's why: The Moon's mass is about 1/81 of the Earth's mass. Gravitational force is directly proportional to the mass of an object. Gravitational force is inversely proportion to the square of the distance between objects. When the ratio of the distance to Moon to the distance to the Earth is 1/9 gives the "neutral gravity point". That's because 1/9 x 1/9 = 1/81. So, the place where the Moon's gravity takes over is one tenth of the Earth-Moon distance from Moon. The Moon's average distance from Earth is about 238,000 miles. That means the answer is: at about 23,800 miles from the Moon. (Remember there are other ways of looking at this problem. There is more than one "correct" answer, depending on your approach.)
Can static electricity be generated in a vacuum?
I have never read of anyone trying to "generate" static electricity in a vacuum. However, there are letters from Nikola Tesla to J J Thompson in the "electrical experimenter" magazine available online. Tesla talks about discharges in a vacuum like those you see in plasma balls etc.... He mentions using a wimshurst machine which is simply a static generator to create plasma in a vacuum tube.... he places the standard spark gap of the wimshurst "inside" a vacuum chamber to observe the effects. Static electricity can not necesarrily "stay" static within a vacuum. The big thing about the chamber is that its atmosphere is much less than that of normal air... so what would result as static build up in ambient pressures would result as a "plasma" type discharge in a vacuum... the big thing is that there is much less resistance inside a vacuum. But, if you have ever played with a plasma ball you know that there is a static build up on the outisde of the ball due to the smell of ozone (creation of negative ions)... also foil and other conductors can draw arcs off one another while near the surface of the plasma ball... the electricity acts like static electricity but it doesnt "go away" like standard statics... this is due to a capacitive reaction in the air around the plasma ball and the fact that the thing is being continuosly powered... you can collect static charge from a television screen in a similar way but a large discharge to a ground will sometimes make the screen go blank.... I guess the main point would be since magnetism and electromagnetism are essentially the same things at their core. The big question becomes, "would whats on the inside effect things on the outside" and vice versa... the answer would have to be yes... saying no to that would be essentially the same thing as saying if i put a piece of glass in between a piece of metal and a strong magnet it wont be attracted because the glass would block it... This is where it gets into the un researched realm..... there are.... well, WERE, many interesting scientists that did research on the electrical effects inside a vacuum chamber... the one thing nobody has ever done is re-create teslas experiment where he took his most powerful high frequency coil and powered a single light bulb with it... he describes it in his own words and it did NOT burn out blow up or fail in any way.... it apparently ended up becoming his basis for his wardenclyffe tower... you will notice in the old photos of wardenclyffe that the top of the tower is covered with "bulbs" and im pretty sure he wasnt just making "light" with those bulbs...
What is the difference between comparative statics and dynamics?
Means comparative static equilibrium
What is difference between dynamics and mechanics?
Mechanics is the study of the interactions between matter and the forces acting on it. Mechanics is divided into three, namely, statics, dynamics and kinematics. Dynamics is the branch of mechanics concerned with the motion of the bodies under the action of forces. statics - no change of momentum dynamics - change of momentum kinematics - force is not concerned
What has the author Eric D Bovet written?
Eric D Bovet has written: 'The dynamics of business motivation' -- subject(s): Economics, Statics and dynamics (Social sciences), Business
What has the author Alfredo Medio written?
Alfredo Medio has written: 'Harrod' -- subject(s): Economics, Statics and dynamics (Social sciences)
Difference between statics and comparative static analysis in mathematical economics?
Statics is a branch of mathematics concerned with the analysis of loads or physical systems in equilibrium. Comparative static analysis is a branch of economics that compares two different economic outcomes, before and after a change of some kind in an outside parameter.
What is the difference between social statics and social dynamics?
Social statics refers to the study of social structure, order, and stability within a society, focusing on its components and how they are organized. Social dynamics, on the other hand, examines the processes of social change, development, and transformation over time, exploring the forces that shape societies and lead to progress or decline. In essence, social statics deals with social stability, while social dynamics deals with social change.
Why statics is before dynamics?
Statics is typically introduced before dynamics in engineering courses because it provides a foundation for understanding the balance of forces in stationary objects before progressing to the study of how forces affect objects in motion. By mastering statics first, students can develop a solid understanding of force analysis and equilibrium, which are fundamental concepts that are critical to understanding dynamics.
What has the author E Agliardi written?
E. Agliardi has written: 'Positive feedback economies' -- subject(s): Uncertainty, Statics and dynamics (Social sciences), Externalities (Economics) 'Self-reinforcing mechanisms and market information'
What are the two divisions of mechanics?
The two main divisions of mechanics are Statics and Dynamics.
What has the author A P ROBERTS written?
A. P. ROBERTS has written: 'STATICS AND DYNAMICS WITH BACKGROUND MATHEMATICS'
What has the author Erich Schneider written?
Erich Schneider has written: 'Pricing and equilibrium: an introduction to static and dynamic analysis' -- subject(s): Mathematical Economics, Prices, Statics and dynamics (Social sciences) 'Wirtschaftlichkeitsrechnung' -- subject(s): Accounting, Investments, Mathematical Economics 'Money, income and employment' -- subject(s): Banks and banking, Money, National income
What has the author V Semenov-Tian-Shanskii written?
V. Semenov-Tian-Shanskii has written: 'Statics and dynamics of the ship'
