您所在的当前位置：高中物理试题 >

近地卫星和同步卫星

> 如图所示，a、b是在圆轨道上运行的两颗人造地球卫星，下列关于这两颗卫星相关物理量的判断中正确的是（） A．b的线速度比较大 B．a的角速度比较大 C．a的周期比较大 D．a受到的向心力比较大

问题：

发布时间：2024-09-10

如图所示，a、b是在圆轨道上运行的两颗人造地球卫星，下列关于这两颗卫星相关物理量的判断中正确的是（）

A．b的线速度比较大

B．a的角速度比较大

C．a的周期比较大

D．a受到的向心力比较大

参考答案：

提问用户：dJ***PeH

可能感兴趣的题目：

1 为使全村一起走向致富之路，绿荫村打算实施“一帮一”方案，为此统计了全村各户的人均年收入（单位：元）： 1200 1423 1321 1780 3240 6865 4536 2314 5621 2431 863 6783 6578 9210 1105 1342 653 365 1243 3452 3452 1876 3562 3425 543 451 342 2341 盚Ỵ盛㧀盙膉癖帉癔Ѐ똈౨崿梏ﱦ౨ᓧ梏똈౨嗥梔廄梏펨౨ﱲ౨崿梏ﱦ౨ᓧ梏ﱲ౨ꛜ梐ﱦ౨챰梕
2 物体在恒定合外力作用下运动，则（　　） A．物体一定作直线运动 B．物体的动量变化率一定恒定 C．物体的动量增量与时间成正比 D．单位时间内物体动量的增量与物体的质量成正比
3 下列用电器中，没有使用到电磁铁的是 A.电饭锅 B.电磁起重机 C.电磁继电器 D.电铃
4 检验氯化氢气体中是否混有少量氯气（肉眼不易观察出），可采用的方法是 A．用干燥的蓝色石蕊试纸 B．将气体通入NaOH溶液 C．将气体通入硝酸银溶液 D．用湿润的淀粉碘化钾试纸
5 完形填空。 On my last day in Nairobi, I decided to visit the game reserve (野生动物保护区). 1 my hotel, I bought a map and hired a 2 . On the way I stopped to take photos of many interesting 3 . A little later, I was very pleased when I saw notices 4 "Be careful: Lions. Stay in your car." I didn"t mean to 5 and drove across a shallow stream. I was halfway 6 when my wheels began to 7 round and round without 8 a bit; the car had stuck in the mud. Full of 9 , I looked round carefully. There was not a lion in the distance. I was soon in the stream and my clothes got into a terrible state, but there was 10 I could do. The car wouldn"t move though I pushed it hard. 11 there was a forest quite near, I didn"t dare go there. When I got back into the car, I felt very 12 . I wondered how long it would be 13 , I was discovered by wild beasts. The lions would quite 14 a tasty meal of 15 human being! I was wild with 16 when, several hours later, a keeper drove up in a jeep and 17 my car on to dry land. It took me some time to 18 what had happened to me when I returned to the 19 , but I do not think that anyone really 20 me! ( )1. A. Leaving ( )2. A. bike ( )3. A. children ( )4. A. written ( )5. A. eat ( )6. A. across ( )7. A. turn ( )8. A. stopping ( )9. A. fear ( )10. A. one choice ( )11. A. If ( )12. A. anxious ( )13. A. before ( )14. A. hate ( )15. A. dead ( )16. A. anger ( )17. A. pulled ( )18. A. write ( )19. A. car ( )20. A. liked B. Reaching B. car B. animals B. read B. go back B. inside B. run B. driving B. anger B. one way B. Where B. surprised B. when B. appreciate B. rotten B. tears B. pushed B. explain B. country B. asked C. Getting to C. horse C. games C. put on C. get out C. back C. go C. moving C. surprise C. something C. Although C. Chappy C. after C. thank C. fresh C. sadness C. sent C. say C. hotel C. believed D. Seeing D. boat D. things D. saying D. give up D. ahead D. return D. leading D. pleasure D. nothing D. Even D. brave D. whether D. refuse D. good D. joy D. carried D. announce D. city D. heard
6 —What did he want to know,Anne? —_______I could finish writing the report. A．When it was that B．It was when that C．It was when D．When was it that
7 After the Yushu earthquake, to make sure that rescue work could be carried out as smoothly as possible, Premier Wen Jiabao his visit to Brunei. A．put away B．put off C．put up D．put down
8 向空中发射一物体，不计空气阻力，当此物体的速度恰好沿水平方向时，物体炸裂成a、b两块，若质量较大的a块的速度方向仍沿原来的方向，则：（） A．b的速度方向一定与原来速度方向相同 B．在炸裂过程中，a、b受到的爆炸力的冲量一定相同 C．从炸裂到落地这段时间里，a飞行的水平距离一定比b的大 D．a、b一定同时到达水平地面
9 已知函数f（x）=5sinxcosx-5 3 cos 2x+ 5 2 3 （其中x∈R），求：（1）函数f（x）的最小正周期；（2）函数f（x）的单调区间；（3）函数f（x）图象的对称轴和对称中心．
10 The teacher told the class to ____ their books. A.put away B.put by C.put on D.put up

如图所示，a、b是在圆轨道上运行的两颗人造地球卫星，下列关于这两颗卫星相关物理量的判断中正确的是（ ） A．b的线速度比较大 B．a的角速度比较大 C．a的周期比较大 D．a受到的向心力比较大

可能感兴趣的题目：

如图所示，a、b是在圆轨道上运行的两颗人造地球卫星，下列关于这两颗卫星相关物理量的判断中正确的是（）

A．b的线速度比较大

B．a的角速度比较大

C．a的周期比较大

D．a受到的向心力比较大