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Statics in economics focuses on analyzing economic variables at a specific point in time, while dynamics looks at how these variables change over time. Static analysis typically examines equilibrium conditions, while dynamic analysis considers how variables evolve over different time periods.
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What are the branches of fluid mechanics - 1?
The branches of fluid mechanics include fluid statics (study of fluids at rest), fluid dynamics (study of fluids in motion), and aerodynamics (study of gases in motion and their interactions with solid objects).
What are the two divisions of mechanics?
The two divisions of mechanics are classical mechanics and quantum mechanics. Classical mechanics deals with macroscopic objects moving at speeds much slower than the speed of light, while quantum mechanics deals with the behavior of very small particles at the atomic and subatomic level.
What is meant by fluid mechanics?
Fluid mechanics is the study of how fluids (liquids and gases) behave when in motion or at rest. It involves understanding the properties and behavior of fluids such as velocity, pressure, and density, and how they are affected by forces such as gravity or viscosity. Applications of fluid mechanics can be found in various fields such as engineering, meteorology, and oceanography.
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.)
What has the author Alfredo Medio written?
Alfredo Medio has written: 'Harrod' -- subject(s): Economics, Statics and dynamics (Social sciences)
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
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.
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 is the difference between comparative statics and dynamics?
Comparative statics examines how a system changes when its parameters change, focusing on the analysis of equilibrium states. Dynamics, on the other hand, studies how a system evolves over time, incorporating the element of time in the analysis and considering the path to equilibrium. Dynamic analysis allows for the exploration of stability and the behavior of the system over different time periods.
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'
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 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 Marcel G Dagenais written?
Marcel G. Dagenais has written: 'An algorithm for choosing a subset of homogeneous elements under constraints' -- subject(s): Computer algorithms, Data processing, Estimation theory 'Specification and estimation of a dynamic disequilibrium model' -- subject(s): Economics, Equilibrium (Economics), Mathematical models, Statics and dynamics (Social sciences)
What has the author V Semenov-Tian-Shanskii written?
V. Semenov-Tian-Shanskii has written: 'Statics and dynamics of the ship'
