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10 5: 1.67 × 10 5 W tech: power consumption of UNIVAC 1 computer 2.5–8 × 10 5 W tech: approximate range of power output of 'supercars' (300 to 1000 hp) 4.5 × 10 5 W tech: approximate maximum power output of a large 18-wheeler truck engine (600 hp) 10 6: mega-(MW) 1.3 × 10 6 W tech: power output of P-51 Mustang fighter aircraft 1.9 × 10 6 W
The GW approximation (GWA) is an approximation made in order to calculate the self-energy of a many-body system of electrons. [ 1 ] [ 2 ] [ 3 ] The approximation is that the expansion of the self-energy Σ in terms of the single particle Green's function G and the screened Coulomb interaction W (in units of ℏ = 1 {\displaystyle \hbar =1} )
In two dimensions, 2x 1 + 2x 2 is the perimeter of a rectangle with sides of length x 1 and x 2. Similarly, 4 √ x 1 x 2 is the perimeter of a square with the same area, x 1 x 2, as that rectangle. Thus for n = 2 the AM–GM inequality states that a rectangle of a given area has the smallest perimeter if that rectangle is also a square.
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The GW invariants also furnish deformations of the product structure in the cohomology ring of a symplectic or projective manifold; they can be organized to construct the quantum cohomology ring of the manifold X, which is a deformation of the ordinary cohomology. The associativity of the deformed product is essentially a consequence of the ...
The kilowatt-hour is a composite unit of energy equal to one kilowatt (kW) sustained for (multiplied by) one hour. The International System of Units (SI) unit of energy meanwhile is the joule (symbol J). Because a watt is by definition one joule per second, and because there are 3,600 seconds in an hour, one kWh equals 3,600 kilojoules or 3.6 ...
The just or Pythagorean perfect fifth is 3/2, and the difference between the equal tempered perfect fifth and the just is a grad, the twelfth root of the Pythagorean comma (/). The equal tempered Bohlen–Pierce scale uses the interval of the thirteenth root of three ( 3 13 {\textstyle {\sqrt[{13}]{3}}} ).
What was clear for the first 1 1/2 hours against Djokovic is that Nadal was diminished, nowhere near the skilled and ever-hustling version of himself that won a record 14 French Open trophies on ...