A. The centripetal force is provided by the gravitational force between the satellite and the Earth B. The centripetal force is provided by the engine of the satellite C. The centripetal force is zero because the satellite is in a state of equilibrium D. The centripetal force is provided by...
A satellite is in a circular orbit with a radius of 15,000,000 meters and a velocity of 5,153 m/s. What velocity will the satellite have if it is moved to a new orbit with a radius of 10,000,000 meters? Step 1:Determine ...
The orbit of a satellite around the Earth needs to be carefully calculated. A satellite in a ___ orbit will have a shorter period. A. lower B. higher C. closer D. far 相关知识点: 试题来源: 解析 A。这题考查词汇与轨道科学原理的关系以及比较级用法。在科学原理上,卫星的轨道越低,其周期...
A satellite is ___ object traveling in ___ orbit round another object in ___ space. A.the;/; the B.an; an; a C.the; an; a D.an; an;/ 相关知识点: 试题来源: 解析 D 本题考查冠词的用法,in space“在太空中”,space前不加冠词;object与orbit是指类别,故用an。反馈 收藏 ...
A. elliptical B. triangular C. rectangular D. circular 相关知识点: 试题来源: 解析 D。解析:circular表示圆形的,卫星一般被发射到绕地球的圆形轨道上。elliptical表示椭圆的;triangular表示三角形的;rectangular表示矩形的,都不符合卫星轨道的常规形状。反馈...
Low Earth Orbit Satellites. A low earth orbit (LEO) satellite is in an approximately circular orbit km abowe the surface of the Earth. If the ground station tracks the satellite when it is within a central angle above the tracking antenn a (directly overhead), how many kilometers does the...
试题来源: 解析 A。卫星能在地球轨道上运行是因为重力。重力提供向心力,使卫星保持在轨道上。选项 B“magnetism”磁力不是卫星在轨道上运行的主要原因。选项 C“electricity”电与卫星在轨道上运行无关。选项 D“friction”摩擦力在太空环境中很小,不是卫星在轨道上运行的主要原因。
The satellite is ___ orbit around the earth. A. in B. on C. at D. of 相关知识点: 试题来源: 解析 A。“in orbit”表示“在轨道上”,是固定搭配。“on”表示“在……上面”;“at”表示“在(小地点)”;“of”表示“……的”。反馈 收藏 ...
A meteorological satellite in a polar orbit passes over the poles of the Earth ___. A. once a day B. twice a day C. every other day D. once a week 相关知识点: 试题来源: 解析 B。解析:本题考查气象卫星在极轨道运行的特点。在极轨道运行的气象卫星每天会经过地球两极两次。once a day表示...
【题目】A satellite is __ object travelling in___ orbit round another object in_space(A.an; an;/B. an; an; theC. the; an; theD. an; the; 相关知识点: 试题来源: 解析 【解析】答案:A,考查冠词的用法,第一个空和第二个空表示类别, Objedt' 物体",orbit"轨道"都是可数名词,并都以...