The laws

Math record of law

Formulation of the law

1) Newton’s law

a = 0

Anybody, as long as it remains isolated, retains its state of rest or uniform rectilinear motion (the acceleration of the body a is zero).

2) Newton’s law

m a = F

The product of the mass of a body by the acceleration it received from the action of the force A of another body, equal to the force A

3) Newton’s law

F 12 = F 21

There is always an equal and opposite reaction to action

Stefan-Boltzmann law of thermal radiation of solids

q 12 = φ 12 ε 1 С s F 1 F 2 х [ ( Т 1 100 ) 4 ( Т 2 100 ) 4 ]

The density of the flux of thermal radiation q12 incident from body 1 to body 2 is directly proportional to the temperature difference of the bodies to the fourth degree.

Ohm’s law

I = U R

The current flowing in the conductor is directly proportional to the voltage applied to it and inversely proportional to the resistance of the conductor.

Planck’s Law

E 0 λ = c 1 λ 5 ( e c 2 / λ t 1 )

The density of the heat radiation flux in the blackbody is inversely proportional to the wavelength and directly proportional to the body temperature.

Wine Law

λ М T = 2879.8

The wavelength at which the blackbody radiation density reaches its maximum value is inversely proportional to body temperature.

Einstein’s law for

photoelectric effect

h υ = A e + m V 2 2

The energy of a photon descending to the cathode, followed by the emission of an electron by the cathode, is equal to the exit energy and the kinetic energy of the electron.

Bohr’s Postulates

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1) In a stationary state, the atom does not emit.

2) When an atom transfers from a state with a higher energy to a state with a lower energy, when an electron in an atom jumps from an orbit more remote from the nucleus, a quantum of electromagnetic, thermal radiation is emitted

3) In a stationary state, an electron moves in a certain orbit, a Coulomb force acts on an electron in an atom.