Review of Short Phrases and Links|
This Review contains major "Constant"- related terms, short phrases and links grouped together in the form of Encyclopedia article.
- A constant is use as reference, being the speed of light in a vacuum which is 186 x 10-3.
- A constant is his friendship with another wannabe comedy writer, a 60 year old teacher named David, prone to long walks and advice filled talks.
- Constant is Surrealist in politics.
- Constant was born in Lausanne, Switzerland, to descendants of Huguenots.
- This constant is equal to two times a, where a is the semi-major axis of the hyperbola.
- Also, if all the derivatives of an analytic function at a point are zero, the function is constant on the corresponding connected component.
- If f is a real-valued function of a real variable, defined on some interval, then f is constant if and only if the derivative of f is everywhere zero.
- The divergence of the curl of any vector field (in three dimensions) is constant and equal to zero.
- The set of points of a Euclidean space that are situated at a constant distance (the radius of the sphere) from a point (the centre of the sphere), i.e.
- The curvature of a circle of radius R is constant, i.e.
- Where G is the gravitational constant, M is the mass of the sphere, and r is the radius of the sphere.
- If n 3, then the scalar curvature, s, is a constant on an Einstein manifold.
- Another is the Yamabe problem, which seeks extremal metrics in a given conformal class for which the scalar curvature is constant.
- The case where the scalar curvature is constant is completely solved locally.
- To make sure a carburetor has a good, constant supply of fuel to be sucked through the fuel jets, it has a float chamber or float bowl.
- The electromagnets use feedback control to maintain a train at a constant distance from a track.
- An almost constant head was therefore maintained in the float chamber by feedback control, and the large float in the reservoir descended at constant speed.
- The cosmological constant is a form of dark energy that causes the expansion of the universe to accelerate.
- Dark energy seems to be uniformly distributed throughout space, with density that is also constant in time.
- Such form of energy - a generalization of the notion of a cosmological constant - is known as dark energy.
- However, when the universe was much younger, the expansion rate, and thus the Hubble "constant", was larger than it is today.
- The Friedmann equations suggest that baryonic mass, dark matter or a cosmological constant (vacuum energy) can influence the expansion rate of our universe.
- The possible existence of a cosmological constant may be changing the expansion rate of the Universe.
- In laminar flow, sometimes called streamline flow, the velocity, pressure, and other flow properties at each point in the fluid remain constant.
- If the absolute pressure of a fluid stays constant, the gauge pressure of the same fluid will vary as atmospheric pressure changes.
- Newtonian Fluid A fluid is Newtonian if viscosity is constant applied to shear force.
- Special Cases: Incompressible fluid - In fluid dynamics, an incompressible fluid is a fluid whose density is constant.
- For a non-viscous, incompressible fluid in steady flow, the sum of pressure, potential and kinetic energies per unit volume is constant at any point.
- Constant of Proportionality - A number that relates the units of two quantities in a mathematical relationship.
- Conservation of baryon number implies that the number of quarks minus the number of antiquarks is a constant.
- Although total fixed costs are constant, the fixed cost per unit changes with the number of units.
- There is a physical constant called the classical electron radius, with a value of 2.8179 × 10 −15 m.
- Contrast this with an atemporal logic, which can only handle statements whose truth value is constant in time.
- Assuming the mass of a vehicle is constant, it will create a certain quantity of kinetic energy while in motion at speed.
- Boltzmann constant; k (L. Boltzmann) A constant which describes the relationship between temperature and kinetic energy for molecules in an ideal gas.
- A constant which describes the relationship between temperature and kinetic energy for molecules in an ideal gas.
- The heat capacity at constant pressure is the change of the enthalpy of the sample with respect to temperature.
- The constant of proportionality is called the coefficient of dynamic viscosity.
- Here, the constant μ is known as the coefficient of viscosity, viscosity, or dynamic viscosity.
- Please remember that a constant is a plain number and a coefficient is a number that is in front of the variable.
- Each of these has an energy E g the value of which is a product of a constant, h, called Planck's constant, and the frequency of the photon, n.
- A linear equation is an equation in which each term is either a constant or the product of a constant times the first power of a variable.
- At any point the product of two principal radii of curvature is constant.
- But as a mean solar time, GMT is defined by the rotation of the Earth, which is not constant in rate.
- The speed of rotation, or angular velocity, remains constant in uniform circular motion.
- The period of rotation (length-of-day) of the earth, however, was assumed to be constant until well into this century, apart from a secular change.
- Neither the speed nor the angular speed of the planet in the orbit is constant, but the area speed is constant.
- This is a "change" in the angular speed so the derivative of it is a constant(if it's not a function).
- This says that the specific angular momentum is a constant of motion, even if both the distance and the angular speed vary.
- In contrast, on a compact Riemann surface X every holomorphic function with value in C is constant due to the maximum principle.
- Newton's equation of motion F = m a (if mass is constant) equates two vectors, and hence is invariant under parity.
- Every convergent sequence in such a space is eventually constant, hence every set is sequentially open.
- Standardized effects are reported in standard deviation units, and are hence remain constant when the unit of measurement changes.
- The City's boundaries have remained almost constant since the Middle Ages, and hence it is now only a tiny part of the much larger London metropolis.
- CLV (constant linear velocity) is accessed by time and CAV (constant angular velocity) is accessed by frame number.
- If the planet is moving at constant angular velocity, ie = 0, then the only acceleration that the earth experiences is the centripetal acceleration.
- Assuming you mean "Constant angular velocity", let's break it down.
- The constant c depends on the acceleration of gravity and the molar mass of the air.
- This acceleration is, in turn, produced by a centripetal force which is also constant in magnitude and directed towards the axis of rotation.
- Here, the acceleration of gravity is a constant, g, because in the equations above, r 21 would be a constant vector, pointing straight down.
- The total energy is the sum of the kinetic and potential energies, and according to the conservation law it remains constant in time for an isolated system.
- By the very interaction the spherical symmetry of the subsystems is broken, but the angular momentum of the total system remains a constant of motion.
- The angular momentum of an isolated system remains constant in both magnitude and direction.
- It states that the total momentum of all bodies in a closed system is constant and unaffected by processes occurring within the system.
- The total mass of all substances is however conserved: the law of conservation of mass The total mass of a closed system always remains constant.
- There appears to be a numerical quantity for measuring rotational motion such that the total amount of that quantity remains constant in a closed system.
- The most important fact about entire functions is Liouville's theorem: an entire function which is bounded must be constant.
- The elliptic modular function is used classically to prove Picard's Little Theorem: An entire function that omits two values is constant.
- If f is an entire function so that there exist two complex numbers a and b such that for every complex number, and, then f is a constant function.
- In this case not only the distance, but also the speed, angular speed, potential and kinetic energy are constant.
- In the case where the non-uniformity is zero, we have constant angular velocity with an intuitively expected circular orbit.
- In the case where the velocity u is constant, the equation (1) can be solved analytically and there is no need for a numerical method of solution.
- Fluid is considered as incompressible, so density (rho) and temperature (T) are constant through tube.
- When the flow is incompressible, ρ is constant and does not change with respect to space.
- In the case of incompressible flow (constant density), the variables to be solved for are the velocity components and the pressure.
- That is, a vehicle following the spiral at constant speed will have a constant rate of angular acceleration.
- Over the reals, the only functions whose derivative is zero are the constant functions.
- In Common Lisp, constant functions are created by constantly: (constantly 6) evaluates to a thunk that, when called, always yields the value 6.
- Do the same for the case that x(t) and z(t) are constant functions and then for the case that x(t) and y(t) are constant functions.
- Momentum, by definition, involves a body in motion, and can be defined as the tendency of a body in motion to continue moving at a constant velocity.
- The CM is initially in motion at a constant velocity and maintains the same velocity after the collision.
- In this geometry, two free particles may begin at the same point on the sphere, travelling with the same constant velocity in different directions.
- In the absence of forces, an object ("body") at rest stays at rest, and an object moving in a straight line with constant velocity persists in doing so.
- This gives them the constant velocity needed to stay fixed over a certain point on the Earth's surface.
- Consider a point object with a mass m, a non-zero, constant velocity and a centripetal force acting on it toward a central body as shown below.
- Mass can be anything from zero to large, but spin is quantized in units of ½h-bar, where h-bar is a constant of Nature known as Planck's constant.
- The reason is that a photon has energy in proportion to its wavelength, and the constant of proportionality is the Planck constant.
- The Planck constant is an immutable fundamental physical constant in the Universe.
- Each wave front will be quantized at the lowest level that radiant energy can affect matter the Planck constant.
- The total energy E of the comet, which is a constant of motion, will determine whether the orbit is an ellipse, a parabola, or a hyperbola.
- So, energy of electron (and direction) is not constant and its velocity and orbit do change speedy.
- Unfortunately, the orbit of the Earth around the Sun is not entirely fixed, so the length of the Besselian year according to this definition is not constant.
- In the absence of external forces, the angular momentum remains constant and no change of configuration can alter the total angular momentum of the system.
- Conservation of Angular Momentum It states that if the external torque acting on the system of particles is zero, then its angular momentum remains constant.
- In the absence of external forces, the angular momentum remains constant, with the result that any rotating body tends to maintain the same axis of rotation.
- If the orbit is elliptical, the radius will vary; and since the mass is constant, the velocity must change.
- By gravity a force F = mg is exerted on the mass (assuming g constant during the motion).
- The coulomb is a fundamental property of matter, like the mass of an electron, the gravitational constant, and the speed of light.
- The electronic energy is proportional to the square of the fine structure constant and the mass me of the electron.
- Physicists have been wondering whether the fine structure constant is really a constant, i.e.
- Its value is very near or equal to fine structure constant in electron length scale.
- Because space is a vacuum and there is no appreciable drag or friction, the speed of the earth is constant and the orbit of earth is, therefore, constant.
- In a circular orbit, the speed or rotation is constant however in elliptical orbits the speed depends on the height the satellite is above the earth.
- Circular Orbit A satellite orbit in which the distance between the centres of mass of the satellite and of the primary body (the earth) is constant.
- The solar constant is equal to approximately 1,370 watts per square meter of area at a distance of one AU from the Sun (that is, on or near Earth).
- The term "solar constant" is a misnomer because it is not a constant.
- For computing the value of the solar constant, the astronomical unit, or average earth-sun distance, is used.
- Decay Constant, l A constant of proportionality.
- Decay constant: the fraction of a number of atoms of a radionuclide that disintegrates in a unit of time.
- The half life is thus inversely proportional to decay constant and directly proportional to mean life.
- Simple flow meters measure volume flow rate, which is proportional to mass flow rate only when the density of the fluid is constant.
- At a constant pressure the volume of a mass of gas is proportional to the absolute temperature.
- Boyle's law states that if the temperature remains constant, the volume of a fixed mass of a gas is inversely proportional to the pressure.
- First, a "penalized" t-statistic (also called a "moderated" or "regulated" t-statistic) can be used, where a constant value is added to the denominator.
- Temperatures are almost constant at about 28 °C (82 °F), moderated by constant trade winds from the Atlantic Ocean.
- Temperature varies little from 28 °C (82.4 °F), moderated by constant trade winds from the Atlantic Ocean.
- The acid dissociation constant (pK a) values of all alkanes are above 60, hence they are practically inert to acids and bases (see: carbon acids).
- The acid dissociation constant K a is an indicator of the acid strength: stronger acids have a higher K a value (and a lower p K a value).
- Due to the many orders of magnitude spanned by K a values, a logarithmic measure of the acid dissociation constant is more commonly used in practice.
- In those circumstances the quotient of activity coefficients is effectively constant and the equilibrium constant is taken to be a concentration quotient.
- The equilibrium constant for this dissociation reaction is known as a dissociation constant.
- In the above equation, the effect of temperature on Gibbs energy (and thus on the equilibrium constant) is ascribed entirely to heat capacity.
- Technology > Energy > Heat > Temperature
- Encyclopedia of Keywords > Information > Change
- Encyclopedia of Finance. > Technology > Energy
- Information > Science > Physics > Volume
- Encyclopedia of Keywords > Thought > Value
* Constant Change
* Constant Curvature
* Constant Function
* Constant Motion
* Constant Rate
* Constant Speed
* Constant Temperature
* Constant Value
* Constant Volume
* Cosmological Constant
* Coupling Constant
* Energy Density
* Gravitational Constant
* Hubble Constant
* Hubble Parameter
* Mean Curvature
* Numerical Value
* Proportionality Constant
* Rate Constant
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