A satellite of mass m is orbiting around the earth (mass M, radius R) in a circular orbital of radius 4R. It starts losing energy slowly at a constant −dEdt=ηdue to friction. Find the time (t) in which the satellite will spiral down to the surface of the earth. View Solution...
A satellite of massmis orbiting around the earth at a heighthabove the surface of the earth. Mass of the earth isMand its radius isR. The angular momentum of the satellite is independent of View Solution View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions...
5. A satellite orbiting Mars has taken the most detailed(detail) measurements yet of how these rare events trap water, which may help explain what happened to the water that used to be abundant on the Red Planet. 相关知识点: 试题来源: ...
题目A satellite is orbiting the Earth. What force keeps it in orbit? A. Frictional force B. Magnetic force C. Gravitational force D. Nuclear force 相关知识点: 试题来源: 解析 C。解析:卫星绕地球运行是因为地球对卫星的万有引力提供了向心力,使其能够在轨道上运行。A选项,太空中卫星几乎不受摩擦...
The stability of a satellite-orbiting object under the disturbing influence of the parent planet can be assessed by comparison with analogous three-body systems. The changes in the eccentricity and semimajor axis of a satellite-orbiting object (disturbed by the planet) and a planetary satellite (...
An orbiting satellite has a mass of 2500 kg. What was the weight of the satellite on earth? A) 23,900 N B) 24,500 N C) 25,000 N D) 26,000 N Gravity: Gravity is defined as the term which is related to the plan...
The force which acts between two mass bodies is called gravitational force. This force is always attractive in nature and always directed along the line joining two masses . This force follows principle of superposition.Answer and Explanation: A sate...
Today, whether a satellite orbiting Earth or a smartphone in your pocket, all of these devices boil down to changing light into numbers representing the brightness of the sky at each pixel (像素). Some stars in the sky slightly change their brightness over time. With digital technology, the ...
6 A spy satellite orbiting (沿轨道运行) 400 km above Earth is ___ capable of counting individual people in a crowd.相关知识点: 试题来源: 解析 highly 间谍卫星在距离地球400公里的轨道上运行,能够在人群中识别个体,这说明它拥有极高的分辨率。因此,填入形容词“highly”来描述卫星的这种能力,表示它“高...
On Friday, ESA controllers received the first signal from the Sentinel-5P satellite, which lifted off from the Plesetsk Cosmodrome inRussiaabout at around 5:30 a.m. EDT. The Sentinel-5P, otherwise known as Precursor, is a member of the European Union’s Copernicus program, which is the lar...