ÌâÄ¿ÄÚÈÝ
9£®![](http://thumb.1010pic.com/pic3/quiz/images/201706/14/6f0eda48.png)
A£® | ÑعìµÀIÔ˶¯ÖÁPµãʱ£¬ÐèÏòºóÅçÆø²ÅÄܽøÈë¹ìµÀII | |
B£® | ÑعìµÀIIÔËÐеÄÖÜÆÚ´óÓÚÑعìµÀIÔËÐеÄÖÜÆÚ | |
C£® | ÔÚ¹ìµÀIÉÏPµãµÄ¼ÓËٶȴóÓÚÔÚ¹ìµÀIIÉÏPµãµÄ¼ÓËÙ¶È | |
D£® | ÑعìµÀIIÔËÐеĹý³ÌÖУ¬»úеÄÜÊغã |
·ÖÎö ÓÉÎÀÐÇÔ˶¯¹ý³ÌÖ»ÊÜÍòÓÐÒýÁ¦µÃµ½¼ÓËÙ¶ÈÏàµÈ£¬»úеÄÜÊغ㣻ÔÙÓÉÍòÓÐÒýÁ¦×öÏòÐÄÁ¦µÃµ½ÖÜÆÚ¼°Ëٶȣ®
½â´ð ½â£ºC¡¢ÎÀÐÇÔÚPµãÖ»ÊÜÍòÓÐÒýÁ¦£¬¹ÊÔÚ¹ìµÀIÉÏPµãµÄ¼ÓËٶȵÈÓÚÔÚ¹ìµÀIIÉÏPµãµÄ¼ÓËٶȣ¬¹ÊC´íÎó£»
A¡¢ÎÀÐÇÔÚPµãÖ»ÊÜÍòÓÐÒýÁ¦£¬ÔÚ¹ìµÀIÉÏÎÀÐÇ×öÔÈËÙÔ²ÖÜÔ˶¯£¬ÏòÐÄÁ¦µÈÓÚÍòÓÐÒýÁ¦£»ÔÚ¹ìµÀIIÉÏÎÀÐÇ×öÏòÐÄÔ˶¯£¬ÏòÐÄÁ¦Ð¡ÓÚÍòÓÐÒýÁ¦£¬ÓÉÍòÓÐÒýÁ¦¹«Ê½$F=\frac{m{v}^{2}}{r}$¿ÉÖªÔÚPµãÔÚ¹ìµÀIIÉÏÎÀÐÇËÙ¶ÈСÓÚÔÚ¹ìµÀ¢ñÉϵÄËٶȣ¬¹ÊÑعìµÀIÔ˶¯ÖÁPµãʱ£¬ÐèÏòÇ°ÅçÆø¼õËÙ²ÅÄܽøÈë¹ìµÀII£¬¹ÊA´íÎó£»
B¡¢ÓÉÍÖÔ²Ô˶¯ÖÜÆÚ¹æÂÉ¿ÉÖª£¬¹ìµÀ¢òµÄÖÜÆÚÔÚλÓÚPµãºÍQµã¸ß¶È×öÔÈËÙÔ²ÖÜÔ˶¯µÄÖÜÆÚÖ®¼ä£¬ÓÖÓÐÎÀÐÇ×öÔÈËÙÔ²ÖÜÔ˶¯£¬ÍòÓÐÒýÁ¦×öÏòÐÄÁ¦£¬$\frac{GMm}{{r}^{2}}=m\frac{4{¦Ð}^{2}}{{T}^{2}}r$£¬ËùÒÔ£¬°ë¾¶Ô½´ó£¬ÖÜÆÚÔ½´ó£¬¹ÊÑعìµÀIIÔËÐеÄÖÜÆÚСÓÚÑعìµÀIÔËÐеÄÖÜÆÚ£¬¹ÊB´íÎó£»
D¡¢ÑعìµÀIIÔËÐеĹý³ÌÖУ¬Ö»ÓÐÍòÓÐÒýÁ¦×ö¹¦£¬¹Ê»úеÄÜÊغ㣬¹ÊDÕýÈ·£»
¹ÊÑ¡£ºD£®
µãÆÀ ÔÚÌìÌåÔ˶¯ÖУ¬Ò»°ã¶¼ÊÇÓÉÍòÓÐÒýÁ¦×öÏòÐÄÁ¦£¬È»ºóÇóµÃËٶȡ¢ÖÜÆÚµÈÓë°ë¾¶µÄ¹Øϵʽ£®
![](http://thumb2018.1010pic.com/images/loading.gif)
![](http://thumb.1010pic.com/pic3/quiz/images/201705/72/2d744e02.png)
A£® | ¸Ë¶ÔAÇò×öµÄ¹¦´óÓڸ˶ÔBÇò×öµÄ¹¦ | |
B£® | AÇò¿Ë·þµ¯»Éµ¯Á¦×öµÄ¹¦ÊǸ˶ÔAÇò×ö¹¦µÄ$\frac{3}{2}$±¶ | |
C£® | µ¯»ÉºÍ¸Ë¶ÔAÇò×ö¹¦µÄ×ܺ͵ÈÓÚAÇò»úеÄܵÄÔöÁ¿ | |
D£® | AÇòµ½×îµÍµãʱ¸Ë¶ÔBÇòµÄ×÷ÓÃÁ¦´óÓÚ4mg |
![](http://thumb.1010pic.com/pic3/quiz/images/201705/193/bce3d644.png)
A£® | Èý¸öÁ£×Ó¶¼´øÕýµç | |
B£® | Èý¸öÁ£×ÓÔڴų¡ÖеÄÔ˶¯Ê±¼äÖ®±ÈÒ»¶¨Îª2£º2£º1 | |
C£® | ÈôÈý¸öÁ£×ӵıȺÉÏàµÈ£¬ÔòÈý¸öÁ£×ÓµÄËÙÂÊÖ®±ÈΪ1£º2£º4 | |
D£® | ÈôÈý¸öÁ£×ÓÉäÈëʱ¶¯Á¿ÏàµÈ£¬ÔòÈý¸öÁ£×ӵĴøµçÁ¿Ö®±ÈΪ1£º2£º4 |
A£® | 16N | B£® | 10N | C£® | 6N | D£® | 2N |
![](http://thumb.1010pic.com/pic3/quiz/images/201310/138/0c6a3d8c.png)
A£® | ÎïÌåBÀ뿪ǽ֮ǰ£¬ÎïÌåA¡¢BϵͳµÄ¶¯Á¿Êغã | |
B£® | ÎïÌåBÀ뿪ǽºó£¬ÎïÌåA¡¢B¶¯Á¿Êغã | |
C£® | ÎïÌåBÀ뿪ǽʱ£¬ÎïÌåAµÄ¶¯ÄܵÈÓÚ$\frac{E}{2}$ | |
D£® | µ±µ¯»ÉÐαäÁ¿ÔÙ´Î×î´óʱ£¬µ¯»ÉµÄµ¯ÐÔÊÆÄÜΪ$\frac{E}{2}$ |
![](http://thumb.1010pic.com/pic3/quiz/images/201706/135/6500031e.png)
A£® | Èý½ÇÐÎľ¿é¾²Ö¹²»¶¯ | |
B£® | Èý½ÇÐÎľ¿é½«ÏòÓÒ¼ÓËÙÔ˶¯ | |
C£® | Èý½ÇÐÎľ¿é¶ÔµØÃæµÄѹÁ¦Îª£¨M+m£©g | |
D£® | Èý½ÇÐÎľ¿é¶ÔµØÃæµÄѹÁ¦ÎªMg+mg£¨cos¦Á sin¦Á+cos¦Â sin¦Â£© |
A£® | m/s | B£® | m/s2 | C£® | km/h | D£® | kg/N |
A£® | ÔÚѧУÇï¼¾Ô˶¯»áÉÏ£¬ÎÒ°àÍõ¶«Í¬Ñ§100Ã×¾öÈüµÚÒ»Ãû£¬ÅܵÃÕæ¡°¿ì¡±ÊÇָ˲ʱËٶȴó | |
B£® | רҵÈü³µ±ÈÒ»°ãµÄС½Î³µÆð²½Òª¡°¿ì¡±ÊÇÖ¸¼ÓËٶȴó | |
C£® | ÔÚÔÓ¼¼¡°·É³µ±íÑÝ¡±ÖУ¬Ä¦Íгµ×öÔ²ÖÜÔ˶¯·Ç³£¡°¿ì¡±ÊÇָƽ¾ùËٶȴó | |
D£® | ¸ßËÙ¹«Â·ÉÏÆû³µµÄËÙ¶È×î¡°¿ì¡±ÏÞËÙ120km/hÖУ¬¡°¿ì¡±ÊÇָƽ¾ùËÙÂÊ´ó |