ÌâÄ¿ÄÚÈÝ
6£®2016ÄêÊÇÖйúº½Ìì´´½¨60ÖÜÄ꣬ÎÒÃǵĺ½Ìì³É¹ûÈÃÈËÕñ·Ü£¬ÐÂÒ»´úÔËÔØ»ð¼ý³¤Õ÷ÎåºÅ¡¢ÆߺÅÊ׷ɳɹ¦£¬º£ÄÏÎIJý·¢É䳡ÕýʽͶÈëʹÓã¬Ì칬¶þºÅ¡¢ÉñÖÛʮһºÅÔØÈË·ÉÐÐÈÎÎñÔ²Âú³É¹¦¡£¬ÎÒ¹úÈ«ÄêÓ·¢Éä´ÎÊý³¬¹ýÁ˶íÂÞ˹µÄ17´Î£¬ÒÔ22´ÎµÄ³É¼¨ÓëÃÀ¹ú²¢ÁÐÊÀ½çµÚÒ»£®ÎÒ¹ú·¢ÉäÉñÖݺŷɴ¬Ê±£¬ÏȽ«·É´¬·¢Éäµ½Ò»¸öÍÖÔ²¹ìµÀÉÏ£¬Æä½üµØµãM¾àµØÃæ200km£¬Ô¶µØµãN¾àµØÃæ340km£®½øÈë¸Ã¹ìµÀÕý³£ÔËÐÐʱ£¬ÖÜÆÚΪT1£¬Í¨¹ýM¡¢NµãʱµÄËÙÂÊ·Ö±ðÊÇv1¡¢v2£¬µ±Ä³´Î·É´¬Í¨¹ýNµãʱ£¬µØÃæÖ¸»Ó²¿·¢³öÖ¸Áµãȼ·É´¬Éϵķ¢¶¯»ú£¬Ê¹·É´¬ÔÚ¶Ìʱ¼äÄÚ¼ÓËÙºó½øÈëÀëµØÃæ340kmµÄÔ²ÐιìµÀ£¬¿ªÊ¼È»µØÇò×öÔÈËÙÔ²ÖÜÔ˶¯£¬ÖÜÆÚΪT2£¬Õâʱ·É´¬µÄËÙÂÊΪv3£¬±È½Ï·É´¬ÔÚM¡¢N¡¢PÈýµãÕý³£ÔËÐÐʱ£¨²»°üÀ¨µã»ð¼ÓËٽ׶Σ©µÄËÙÂÊ´óСºÍÁ½¸ö¹ìµÀÉÏÔËÐеÄÖÜÆÚ£¬ÒÔ¼°ÔÚNµãµã»ðÇ°ºóµÄ¼ÓËÙ¶ÈaºÍa¡äµÄ´óС£¬Ôò£¨¡¡¡¡£©A£® | v1£¾v3£¾v2 | B£® | v1£¾v2£¾v3 | C£® | a¡ä£¾a | D£® | T2£¾T1 |
·ÖÎö ·É´¬ÔÚ½üµØµãµÄËٶȴóÓÚÔ¶µØµãµÄËٶȣ¬½áºÏ±ä¹ìµÄÔÀíºÍ×öÔ²ÖÜÔ˶¯ÏßËÙ¶ÈÓë¹ìµÀ°ë¾¶µÄ¹Øϵ±È½Ïv2ÈýÕßµÄËٶȴóС£®¸ù¾Ý¿ªÆÕÀÕµÚÈý¶¨ÂɱȽÏÖÜÆÚT1¡¢T2µÄ´óС£®¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂɱȽϼÓËٶȣ®
½â´ð ½â£ºA¡¢·É´¬ÔÚ½üµØµãµÄËٶȴóÓÚÔ¶µØµãµÄËٶȣ¬Ôòv1£¾v2£¬·É´¬´ÓNµã±ä¹ìµ½Ô²ÐιìµÀ£¬Ðèµã»ð¼ÓËÙ£¬Ôòv3£¾v2£¬¸ù¾Ý$v=\sqrt{\frac{GM}{r}}$Öª£¬×öÔ²ÖÜÔ˶¯µÄ¹ìµÀ°ë¾¶Ô½Ð¡£¬ÏßËÙ¶ÈÔ½´ó£¬Ôòv1£¾v3£¬¿ÉÖªv1£¾v3£¾v2£¬¹ÊAÕýÈ·£¬B´íÎó£®
C¡¢ÔÚNµãµã»ðÇ°ºó£¬·É´¬ËùÊܵÄÍòÓÐÒýÁ¦´óСÏàµÈ£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨Âɵã¬a=$\frac{F}{m}=\frac{GM}{{r}^{2}}$£¬Ôò¼ÓËÙ¶ÈÏàµÈ£¬¹ÊC´íÎó£®
D¡¢¸ù¾Ý¿ªÆÕÀÕµÚÈý¶¨ÂÉÖª£¬$\frac{{a}^{3}}{{T}^{2}}=k$£¬ÓÉÓÚÔ²¹ìµÀµÄ°ë¾¶´óÓÚÍÖÔ²¹ìµÀµÄ°ë³¤ÖᣬÔòT2£¾T1£¬¹ÊDÕýÈ·£®
¹ÊÑ¡£ºAD£®
µãÆÀ ½â¾ö±¾ÌâµÄ¹Ø¼üÖªµÀ±ä¹ìµÄÔÀí£¬ÖªµÀÏßËٶȡ¢¼ÓËٶȡ¢ÖÜÆÚÓë¹ìµÀ°ë¾¶µÄ¹Øϵ£¬ÒÔ¼°ÕÆÎÕ¿ªÆÕÀÕµÚÈý¶¨ÂÉ£¬²¢ÄÜÁé»îÔËÓã®
A£® | ÀÁ¦F×öµÄ¹¦Îª16.75J | |
B£® | ÖØÁ¦G×öµÄ¹¦Îª10J | |
C£® | Ô²»¡Ãæ¶ÔÎïÌåµÄÖ§³ÖÁ¦FN×öµÄ¹¦ÎªÁã | |
D£® | ÎïÌå¿Ë·þÔ²»¡ÃæµÄĦ²ÁÁ¦Ff×ö¹¦6.75J |
A£® | ÔÚ0¡«t0ʱ¼äÄڻطµçÁ÷·½ÏòÊÇabdca | |
B£® | ÔÚt0ʱ¿Ì»Ø·ÖвúÉúµÄ¸ÐÓ¦µç¶¯ÊÆE=$\frac{{B}_{0}{L}_{1}}{{t}_{0}}$ | |
C£® | ÔÚ0¡«t0ʱ¼äÄÚµ¼Ìå°ôÖеçÁ÷Ϊ$\frac{{B}_{0}{L}_{1}{L}_{2}}{2R{t}_{0}}$ | |
D£® | ÔÚ$\frac{{t}_{0}}{2}$ʱ¿Ì¾øԵ˿ÏßËùÊÜÀÁ¦Îª$\frac{{{B}_{0}}^{2}{{L}_{1}}^{2}{L}_{2}}{4R{t}_{0}}$ |
A£® | ¹âÊøIÈÔΪ¸´É«¹â£¬¹âÊøII¡¢IIIΪµ¥É«¹â | |
B£® | ²£Á§¶Ô¹âÊøIIIµÄÕÛÉäÂÊСÓÚ¶Ô¹âÊøIIµÄÕÛÉäÂÊ | |
C£® | ¸Ä±ä¦Á½Ç£¬¹âÊøI¡¢II¡¢IIIÈÔ±£³ÖƽÐÐ | |
D£® | ͨ¹ýÏàͬµÄË«·ì¸ÉÉæ×°Ö㬹âÊøII²úÉúµÄÌõÎÆ¿í¶ÈÒª´óÓÚ¹âÊøIIIµÄ | |
E£® | ¹âÊøIIÓë¹âÊøIIIÔÚ²£Á§Öд«²¥µÄʱ¼äÒ»¶¨ÏàµÈ |
A£® | ´ËÈ˵ÄÖØÁ¦Îª750N | B£® | bµãÊÇ´ËÈË϶×ÖÁ×îµÍµãµÄλÖà | ||
C£® | ´ËÈËÔÚfµãµÄ¼ÓËٶȵÈÓÚÁã | D£® | ´ËÈËÔÚdµãµÄ¼ÓËٶȵÈÓÚ20m/s2 |
A£® | СÇòa³¬ÖØ£¬Ð¡ÇòbʧÖØ | |
B£® | ÏàÓöʱÁ½ÇòËٶȴóСÏàµÈ | |
C£® | ´Ó¿ªÊ¼Ô˶¯µ½ÏàÓö£¬Çòa¶¯ÄܵļõÉÙÁ¿µÈÓÚÇòb¶¯ÄܵÄÔö¼ÓÁ¿ | |
D£® | ÏàÓöºóµÄÈÎÒâʱ¿Ì£¬ÖØÁ¦¶ÔÇòa×ö¹¦¹¦ÂÊСÓÚÖØÁ¦¶ÔÇòb×ö¹¦¹¦ÂÊ |
A£® | ×Óµ¯É䴩ľ¿éµÄ¹ý³ÌÖУ¬×Óµ¯Óëľ¿é×é³ÉµÄϵͳ»úеÄܲ»Êغã | |
B£® | ×Óµ¯É䴩ľ¿éºó£¬Ä¾¿éÔÚÔ˶¯¹ý³ÌÖлúеÄÜÊغã | |
C£® | ľ¿éÔÚÏòÓÒ°Ú¶¯¹ý³ÌÖУ¬Ä¾¿éµÄ¶¯ÄÜÓ뵯»ÉµÄµ¯ÐÔÊÆÄÜÖ®ºÍÔÚ±äС | |
D£® | ľ¿éÔÚÏòÓÒ°Ú¶¯¹ý³ÌÖÐÖØÁ¦µÄ¹¦ÂÊÔÚ±äС |