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Number of Results: 95 Search : law

Newton's first law of motion naxostin qânun-e Newtoni-ye jonbeš (#) Fr.: première loi newtonienne de mouvement A body continues in its state of constant velocity (which may be zero) unless it is acted upon by an external force. |

Newton's law of cooling qânun-e sardeš-e Newton Fr.: loi de refroidissement de Newton An approximate empirical relation between the rate of
→ T is the temperature of
the object, T is that of its surroundings, _{s}t is time,
and k is a constant, different for different bodies. |

Newton's law of gravitation qânun-e gerâneš-e Newton Fr.: loi newtonienne de la gravitation The universal law which states that the force of attraction between any
two bodies is proportional to the product of their masses and inversely proportional
to the square of the distance between them:
G
is the → gravitational constant.→ |

Newton's laws of motion qânunhâ-ye jonbeš-e Newton Fr.: lois de mouvement de Newton The three fundamental laws which are the basis of
→ |

Newton's second law of motion dovomin qânun-e Newtoni-ye jonbeš (#) Fr.: seconde loi newtonienne de mouvement For an unbalanced force acting on a body, the acceleration produced is proportional to the force impressed; the constant of proportionality is the inertial mass of the body. |

Newton's third law of motion sevomin qânun-e Newtoni-ye jonbeš (#) Fr.: troisième loi newtonienne de mouvement In a system where no external forces are present, every action force is always opposed by an equal and opposite reaction. |

Ohm's law qânun-e Ohm (#) Fr.: loi d'Ohm 1) For a → current density, , is proportional to the
electric field J: E = σJ, where σ
is the → Econductivity, i.e. the reciprocal of
→ resistivity, ρ = 1/σ. 2) Ohm's law for a moving conductor is expressed by: = σ(J + E x v),
where B is the velocity and
v
the → Bmagnetic induction. |

Pascal's law qânun-e pâskâl (#) Fr.: loi de Pascal A change in the pressure of an enclosed incompressible fluid is conveyed undiminished to every part of the fluid and to the surfaces of its container. Named after Blaise Pascal (1623-1662), French mathematician, physicist, and religious philosopher for his contribution in the study of hydrodynamics and hydrostatics, in particular establishing the principle of the barometer. |

physical law qânun-e fiziki (#) Fr.: loi physique A theoretical principle which is deduced from particular observational
facts regarding the behavior of matter. Physical laws are expressed by a
general statement that a particular → |

Planck's radiation law qânun-e tâbeš-e Planck Fr.: loi du rayonnement de Planck An equation that expresses the energy radiated per unit area per unit time per unit wavelength
range by a blackbody as a function of temperature. It is expressed by
→ |

Poiseuille's law qânun-e Poiseuille Fr.: loi de Poiseuille In fluid dynamics, the law that the rate of flow of a liquid through a horizontal tube of uniform radius is directly proportional to the pressure of the liquid and the fourth power of the radius of the tube and is inversely proportional to the viscosity of the liquid and the length of the tube. Named after Jean-Louis-Marie Poiseuille (1797-1869), a French
physiologist and physician who found the law in 1844;
→ |

power law qânun-e tavâni (#) Fr.: loi de puissance A mathematical relationship between two quantities expressed by a
→ |

power-law distribution vâbâžeš bâ qânun-e tavâni Fr.: distribution en loi de puissance For a → → |

power-law elliptical galaxy kahkešân-e beyzigun bâ qânun-e tavâni Fr.: galaxie elliptique en loi de puissance An → |

Prevost's law of exchanges qânun-e gahuleš-e Prévost Fr.: loi des échanges de Prévost A statement concerned with thermodynamic heat exchange, according to which
bodies in → Named after Pierre Prévost (1751-1839), a Swiss philosopher
and physicist, who, in 1791, put forward the statement; → |

Raoult's law qânun-e Raoult (#) Fr.: loi de Raoult The → After François-Marie Raoult (1830-1901), the French chemist who studied
the physical properties of chemical solutions; → |

Rayleigh-Jeans law qânun-e Rayleigh-Jeans(#) Fr.: loi de Rayleigh-Jeans A classical law approximately describing the intensity of radiation
emitted by a → |

Schmidt law qânun-e Schmidt Fr.: loi de Schmidt A power-law relation between → Named after Maarten Schmidt (1929-), a dutch-born American astronomer, who also discovered
the first → |

second law of black-hole mechanics qânun-e dovom-e mekânik-e siyah-câl Fr.: deuxième loi de la mécanique des trous noirs The surface area of a black hole's horizon can never decrease. → |

second law of thermodynamics qânun-e dovom-e garmâtavânik Fr.: deuxième loi de la thermodynamique 1) Heat cannot be transferred from a colder to a hotter body without some other effect, i.e.
without → → |