Keplers second law Keplers second law, Keplers second law, also known as the law of area: in equal time, the area of the sun and the moving planets are equal. This law actually reveals the conservation of angular momentum of planets orbiting the sun. Represented by a formula as Keplers...
- “Kepler's first law”表示开普勒第一定律。 - “Kepler's second law”表示开普勒第二定律。 - “Kepler's third law”表示开普勒第三定律。 例句: 1. In 1611, Kepler published his dioptrice. (1611 年,开普勒发表了他的著作《折光学》。) 2. The rate of sweeping out of area is a constant ...
Kepler's second law,law of areas,law of equal areas- a law concerning the speed at which planets travel; a line connecting a planet to the sun will sweep out equal areas in equal times; "Kepler's second law means that a planet's orbital speed changes with its distance from the sun"...
Kepler'sLaw:alsoknownas"thethreelawofKepler",also knownasthelawofplanetarymotion,referstotheplanetsin theuniversearoundthesunrevolutionfollowedbythelaw.The GermanastronomerKepleraccordingtotheDanishastronomer TychoBrahe'sobservationsandcatalogs,throughobservation ...
9.Kelvin's statement of the second law of thermodynamics热力学第二定律的开氏说法 10.The rate of sweeping out of area is a constant-this is one of three Kepler laws.单位时间扫过的面积为常量,这就是开普勒三定律之一。 11.Kepler writes of what he felt when, after many years' work, he at...
Area ASB=area CSD=area ESF. Kepler's third law : The square of the period of revolution of a plant around the sun is directly proportional to the cube of the mean distance of the planets from the Sun. Thus , if r is the average distance of the planet from the Sun and T is ...
of a planetary orbit is proportional to the area of the sector between the central body and that arc (the “area law”); and (3) there is an exact relationship between the squares of the planets’ periodic times and the cubes of their mean distances from the Sun (the “harmonic law”...
Related to Kepler's laws:Kepler's third law,Kepler's first law,Kepler's second law,Johannes Kepler Kepler's laws pl n (Astronomy) three laws of planetary motion published by Johannes Kepler between 1609 and 1619. The first states that the orbit of a planet describes an ellipse with the ...
The established law of equal area for the Earth was applied to analyze the angular velocity--or the reciprocal of the distance--for the Earth's orbit around the Sun, and can be defined as a periodic function by analyzing the available data, which helps explain the law of ellipses for the...
4. Deriving the Conservation of Angular Momentum: From the expression for area swept out, we can derive that: dAdt=L2m Since dA/dt is constant, it implies that L (angular momentum) must also be constant, as m (mass) is constant. 5. Conclusion: Therefore, Kepler's second law is fundam...