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1 dzień temu · Introduction. When a body is free to rotate around an axis, torque must be applied to change its angular momentum.The amount of torque needed to cause any given angular acceleration (the rate of change in angular velocity) is proportional to the moment of inertia of the body.Moments of inertia may be expressed in units of kilogram metre squared (kg·m 2) in SI units and pound-foot-second ...
1 dzień temu · The exponential function is defined on the entire domain of the complex numbers.The definition of sine and cosine can be extended to all complex numbers via = = + These can be reversed to give Euler's formula = + = When plotted on the complex plane, the function for real values of traces out the unit circle in the complex plane.. When is a real number, sine and cosine ...
3 godz. temu · The Sun's idealized orbit around the Galactic Center in an artist's top-down depiction of the current layout of the Milky Way. ... could be used to trigonometrically determine the distances between Earth, Venus, and the Sun. ... The center is a sun pattern with twelve points around which four birds fly in the same counterclockwise direction.
1 dzień temu · Enrico Fermi (1901–1954) The Fermi paradox is a conflict between the argument that scale and probability seem to favor intelligent life being common in the universe, and the total lack of evidence of intelligent life having ever arisen anywhere other than on Earth. The first aspect of the Fermi paradox is a function of the scale or the large ...
3 godz. temu · General George C. Marshall, the 50th U.S. Secretary of State. The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred $13.3 billion (equivalent to $173 billion in 2023) in economic recovery programs to Western European ...
1 dzień temu · It's one of the most iconic and popular music festivals in the world, and it's notoriously hard to get a ticket. Glastonbury has rolled around once again and roughly 210,000 people have flocked to ...
1 dzień temu · Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia.It is the largest country in the world by area, extending across eleven time zones and sharing land borders with fourteen countries. It is the world's ninth-most populous country and Europe's most populous country.Russia is a highly urbanized country including 16 population centres with over a million ...
