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力;...
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: ...
B) It is altering the way of shopping.C) It can improve shopping efficiency.D) It appeals more to younger people.Questions 12 to 15 are based on the conversation you have just heard.12.A) He wanted the furniture store to give him a refund.B) He had a problem with the furniture ...
(extreme)challenging.Becausethemoon’sbodyblocksdirectradiocommunicationwithaprobe,Chinafirsthadtoputasatelliteinorbitabovethemooninaspot3itcouldsendsignalstothespacecraftandtoEarth.Thefarsideofthemoonisofparticular4(interesting)toscientistsbecauseithasalotofdeepcraters(环形山),moreso5thefamiliarnearside.Chinese...
The correct Answer is:A Show More | ShareSave Answer Step by step video & image solution for Consider a satellite orbiting the earth as shown in the figure below. Let L_(a) and L_(p) represent the angular momentum of the satellite about the earth when at aphelion and perihelion respect...
13. (4.0分) A spy satellite orbiting 400 km above Earth is___ capable of counting individual people in a crowd.(2.0)A suddenlyB spectacularlyC supposedlyD surprisingly 相关知识点: 试题来源: 解析 C supposedly 该题考察副词的用法,句意为“一颗在地球上空400公里轨道运行的间谍卫星,据说能够在人群中...
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...
4.According to the professor,what is the significance of having a satellite in orbit about 36,000 kilometers above Earth's surface? A. This is the physical limit of the length that a carbon nanotube cable could reach. B. A satellite orbiting at this height can remain directly above on ...
The embolised device freely floated within the pseudoaneurysm, uniquely akin to a satellite orbiting in space (Video 1). The secondary device was removed and initial breach was satisfactorily closed with a 15-mm-sized Amplatzer atrial septal defect occluder (third device). This was confirmed to ...
A satellite is an object in space that orbits or circles around a bigger object. There are two kinds of satellites: natural (such as the moon orbiting the Earth) or artificial (such as the International Space Station orbiting the Earth). There are dozens upon dozens of natural satellites in...