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5 days ago · Earthquake magnitude is a measure of the energy released during the earthquake and defines the size of the seismic event. Accepted measure of magnitude is the Richter scale and relationship between energy released, E, and Richter magnitude, M, is. log10 E=11.4 + 1.5M. Where E is in ergs.
4 days ago · Seismic energy of a magnitude 11 earthquake on Earth (M 11) 1.5×10 22 J: Total energy from the Sun that strikes the face of the Earth each day: 1.94×10 22 J Impact event that formed the Siljan Ring, the largest impact structure in Europe: 2.4×10 22 J: Estimated energy contained in the world's coal reserves as of 2010: 2.9×10 22 J
1 day ago · Why is the Sun's corona so much hotter than the Sun's surface? (more unsolved problems in astronomy) The temperature of the photosphere is approximately 6,000 K, whereas the temperature of the corona reaches 1,000,000–2,000,000 K. The high temperature of the corona shows that it is heated by something other than direct heat conduction from the photosphere. It is thought that the energy ...
2 days ago · Alpha Centauri ( α Centauri, α Cen, or Alpha Cen) is a triple star system in the southern constellation of Centaurus. It consists of three stars: Rigil Kentaurus ( α Centauri A ), Toliman ( α Centauri B ), and Proxima Centauri ( α Centauri C ). [14] Proxima Centauri is the closest star to the Sun at 4.2465 light-years (1.3020 pc ).
5 days ago · That magnitude-6.9 event resulted in the deaths of 1,500 people. A magnitude-8.0 earthquake in 1934, however, killed approximately 10,600 people. Initial reports of casualties following the early-morning earthquake put the death toll in the hundreds, but, as the day wore on, reports had the total number of fatalities surpassing 1,000 and ...
5 days ago · That means it's defined by both magnitude and direction. Scalars, like mass or energy, are defined only by magnitude. So, if you apply two forces to an object, you can't add them like scalars. You need to take the direction into account and find the net force – the forces' vector sum.
3 days ago · This scale, invented in 1934 by California scientist Charles Richter, measures the magnitude of an earthquake, and the result is a number from 0 to 10, as measured on a machine called a seismograph. The scale is not a normal number scale, however; rather, it is a logarithmic scale. This means that an earthquake that measures 2 on the Richter ...
