放物線 y=x²−4x 7 をx軸方向に3，y軸方向に−2だけ平行移動して得られる放物線の方程式を求めよ。の英語

a metal of relatively high density (specific gravity greater than about 5) or of high relative atomic weight (especially one that is poisonous like mercury or lead)

a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere

a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion

relatively weak attraction between neutral atoms and molecules arising from polarization induced in each particle by the presence of other particles

a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt

an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction

the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)

a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays)

law stating that the proportions in which two elements separately combine with a third element are also the proportions in which they combine together

the law that states any two bodies attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them

law obeyed by a systems of particles whose wave function changes when two particles are interchanged (the Pauli exclusion principle applies)

the law that if two bodies are in thermal equilibrium with a third body then the first two bodies are in thermal equilibrium with each other

suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device

the ratio of the electromotive force produced in a circuit by self-induction to the rate of change of current producing it, expressed in henries

formed by blending unlike elements especially by reducing one element to particles and dispersing them throughout another substance

a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond

the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field

a mixture of two partially miscible liquids A and B produces two conjugate solutions: one of A in B and another of B in A

French nuclear physicist who generalized the wave-particle duality by proposing that particles of matter exhibit wavelike properties (1892-1987)

a physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems

the action of producing a monochromatic beam of light by exciting electrons to a higher energy level and causing them to radiate energy, called a laser

a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by another such disturbance

the state in which a substance exhibits a characteristic readiness to flow with little or no tendency to disperse and relatively high incompressibility

a chemical reaction in which a completely new substance is created by altering the atomic makeup of the two or more substances used in the reaction

a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons)

a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen

any of a group of viruses that contain two single-strand linear RNA molecules per virion and reverse transcriptase (RNA to DNA)

When an object moves away from Earth, the light that it is giving off is seen in longer wavelengths. When an object moves toward Earth, the light that it is giving off is seen in shorter wavelengths.

law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will exhibit a simple multiple relation

a cgs unit of magnetic flux equal to the flux perpendicular to an area of 1 square centimeter in a magnetic field of 1 gauss