ÌâÄ¿ÄÚÈÝ
12£®P1¡¢P2ΪÏà¾àÒ£Ô¶µÄÁ½¿ÅÐÐÐÇ£¬¾à¸÷×Ô±íÃæÏàͬ¸ß¶È´¦¸÷ÓÐÒ»¿ÅÎÀÐÇS1¡¢S2×öÔÈËÙÔ²ÖÜÔ˶¯£®Í¼ÖÐ×Ý×ø±ê±íʾÐÐÐǶÔÖÜΧ¿Õ¼ä¸÷´¦ÎïÌåµÄÒýÁ¦²úÉúµÄ¼ÓËÙ¶Èa£¬ºá×ø±ê±íʾÎïÌåµ½ÐÐÐÇÖÐÐĵľàÀërµÄƽ·½£¬Á½ÌõÇúÏß·Ö±ð±íʾP1¡¢P2ÖÜΧµÄaÓër2µÄ·´±È¹Øϵ£¬ËüÃÇ×ó¶Ëµãºá×ø±êÏàͬ£¬Ôò£¨¡¡¡¡£©A£® | P1µÄƽ¾ùÃܶȱÈP2µÄС | B£® | P1µÄµÚÒ»ÓîÖæËٶȱÈP2µÄ´ó | ||
C£® | S1µÄÏòÐļÓËٶȱÈS2µÄС | D£® | S1µÄ¹«×ªÖÜÆÚ±ÈS2µÄС |
·ÖÎö ¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂɵóöÐÐÐǶÔÖÜΧ¿Õ¼ä¸÷´¦ÎïÌåµÄÒýÁ¦²úÉúµÄ¼ÓËÙ¶ÈaµÄ±í´ïʽ£¬½áºÏaÓër2µÄ·´±È¹Øϵº¯ÊýͼÏóµÃ³öP1¡¢P2µÄÖÊÁ¿ºÍ°ë¾¶¹Øϵ£¬¸ù¾ÝÃܶȺ͵ÚÒ»ÓîÖæËٶȵıí´ïʽ·ÖÎöÇó½â£»¸ù¾Ý¸ù¾ÝÍòÓÐÒýÁ¦ÌṩÏòÐÄÁ¦µÃ³öÖÜÆÚ±í´ïʽÇó½â£®
½â´ð ½â£ºA¡¢¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂÉ£¬ÐÐÐǶÔÖÜΧ¿Õ¼ä¸÷´¦ÎïÌåµÄÒýÁ¦²úÉúµÄ¼ÓËÙ¶ÈΪ£ºa=$\frac{GM}{{r}_{\;}^{2}}$£¬Á½ÇúÏß×ó¶Ëµãºá×ø±êÏàͬ£¬ËùÒÔP1¡¢P2µÄ°ë¾¶ÏàµÈ£¬½áºÏaÓër2µÄ·´±È¹Øϵº¯ÊýͼÏóµÃ³öP1µÄÖÊÁ¿´óÓÚP2µÄÖÊÁ¿£¬¸ù¾Ý¦Ñ=$\frac{M}{\frac{4¦Ð{R}_{\;}^{3}}{3}}$£¬ËùÒÔP1µÄƽ¾ùÃܶȱÈP2µÄ´ó£¬¹ÊA´íÎó£»
B¡¢ÓÉAÖªP1µÄÖÊÁ¿´óÓÚP2µÄÖÊÁ¿£¬P1¡¢P2µÄ°ë¾¶ÏàµÈ£¬µÚÒ»ÓîÖæËÙ¶Èv=$\sqrt{\frac{GM}{R}}$£¬ËùÒÔP1µÄ¡°µÚÒ»ÓîÖæËٶȡ±±ÈP2µÄ´ó£¬¹ÊBÕýÈ·£»
C¡¢s1¡¢s2µÄ¹ìµÀ°ë¾¶ÏàµÈ£¬¸ù¾Ýa=$\frac{GM}{{r}_{\;}^{2}}$£¬ËùÒÔs1µÄÏòÐļÓËٶȱÈs2µÄ´ó£¬¹ÊC´íÎó£»
D¡¢¸ù¾Ý¸ù¾ÝÍòÓÐÒýÁ¦ÌṩÏòÐÄÁ¦µÃ³öÖÜÆÚ±í´ïʽT=2¦Ð$\sqrt{\frac{{r}_{\;}^{3}}{GM}}$£¬ËùÒÔs1µÄ¹«×ªÖÜÆÚ±Ès2µÄС£¬¹ÊDÕýÈ·£»
¹ÊÑ¡£ºBD
µãÆÀ ½â¾ö±¾ÌâµÄ¹Ø¼üÕÆÎÕÍòÓÐÒýÁ¦ÌṩÏòÐÄÁ¦ÕâÒ»ÀíÂÛ£¬ÖªµÀÏßËٶȡ¢½ÇËٶȡ¢ÖÜÆÚ¡¢¼ÓËÙ¶ÈÓë¹ìµÀ°ë¾¶µÄ¹Øϵ£¬²¢»áÓÃÕâЩ¹Øϵʽ½øÐÐÕýÈ·µÄ·ÖÎöºÍ¼ÆË㣮¸ÃÌ⻹ҪÇóÒªÓÐÒ»¶¨µÄ¶ÁͼÄÜÁ¦ºÍÊýѧ·ÖÎöÄÜÁ¦£¬»á´ÓͼÖжÁ³öһЩÐÅÏ¢£®¾ÍÏñ¸ÃÌ⣬ÄÜÖªµÀÁ½¸öÐÐÐǵİ뾶ÊÇÏàµÈµÄ£®
A£® | Á½½Ç¶È´óС¼ä¹ØϵΪ£º2¦Á=¦Â | |
B£® | ÉþOO¡äµÄÕÅÁ¦µÄ´óСҲÔÚÒ»¶¨·¶Î§Äڱ仯 | |
C£® | Îï¿ébËùÊܵ½µÄÖ§³ÖÁ¦µÄ´óСҲÔÚÒ»¶¨·¶Î§Äڱ仯 | |
D£® | Îï¿ébÓë×ÀÃæ¼äµÄĦ²ÁÁ¦µÄ´óСҲÔÚÒ»¶¨·¶Î§Äڱ仯 |
A£® | ͬһζÈÏÂͬÖÊÁ¿µÄË®£¬Æø̬ʱµÄÄÚÄܺÍҺ̬ʱµÄÏàͬ | |
B£® | ÆøÌå¶ÔÍâ×ö¹¦£¬ÆäÄÚÄÜ¿ÉÄÜÔö¼Ó | |
C£® | ÈÈÁ¿¿ÉÒÔ´ÓµÍÎÂÎïÌå´«µÝµ½¸ßÎÂÎïÌå | |
D£® | Ò»¶¨ÖÊÁ¿µÄÀíÏëÆøÌåζÈÉý¸ßʱ£¬Ã¿¸öÆøÌå·Ö×ÓµÄËÙÂʶ¼Ôö´ó | |
E£® | ·Ö×ÓÊÆÄÜ¿ÉÄÜËæ·Ö×Ó¼ä¾àÀëµÄÔö¼Ó¶øÔö¼Ó |
A£® | a´øÕýµç£¬b´ø¸ºµç£® | B£® | a¡¢b¾ù´ø¸ºµç | ||
C£® | a¡¢b¾ù´øÕýµç | D£® | a´ø¸ºµç£¬b´øÕýµç |
A£® | СÇòµÄËÙ¶ÈÏàͬ | B£® | СÇòµÄ¼ÓËÙ¶ÈÏàͬ | ||
C£® | СÇòµÄ»úеÄÜÏàͬ | D£® | Á½¹ìµÀËùÊÜѹÁ¦Ïàͬ |
A£® | ·ÅÉäÐÔÔªËصİëË¥ÆÚÓëÔ×ÓËù´¦µÄ»¯Ñ§×´Ì¬ºÍÍⲿÌõ¼þÎÞ¹Ø | |
B£® | ¹âµçЧӦºÍ¿µÆÕ¶ÙЧӦÉîÈë½ÒʾÁ˹âµÄÁ£×ÓÐÔ£¬Ç°Õß±íÃ÷¹â×Ó¾ßÓÐÄÜÁ¿£¬ºóÕß±íÃ÷¹â×Ó³ýÁ˾ßÓÐÄÜÁ¿Í⻹¾ßÓж¯Á¿ | |
C£® | ÔÚ${\;}_{7}^{14}N$+${{\;}_{2}^{4}H}_{E}$¡ú${\;}_{8}^{17}O$+XºË·´Ó¦ÖУ¬XÊÇÖÊ×Ó£¬Õâ¸ö·´Ó¦¹ý³Ì½ÐË¥±ä | |
D£® | ¸÷ÖÖÆøÌåÔ×ÓµÄÄܼ¶²»Í¬£¬Ô¾Ç¨Ê±·¢Éä¹â×ÓµÄÄÜÁ¿£¨ÆµÂÊ£©²»Í¬£¬Òò´ËÀûÓò»Í¬µÄÆøÌå¿ÉÒÔÖƳÉÎåÑÕÁùÉ«µÄÄÞºçµÆ | |
E£® | ¸ù¾Ý²¨¶ûÀíÂÛ£¬ÇâÔ×ӵĺËÍâµç×ÓÓɽϸßÄܼ¶Ô¾Ç¨µ½½ÏµÍÄܼ¶Ê±£¬ÒªÊÍ·ÅÒ»¶¨ÆµÂʵĹâ×Ó£¬Í¬Ê±µç×ӵĶ¯ÄܼõС£¬µçÊÆÄÜÔö´ó£® |
A£® | ÎïÌåÉÏÖ»ÓÐÖØÐÄ´¦²ÅÊܵ½ÖØÁ¦×÷Óà | |
B£® | ÎïÌåµÄÖØÐÄÒ»¶¨ÔÚÎïÌåÉÏ | |
C£® | ÔÚ¹ãÖݵÄÎïÌåÓëÔÚ±±¾©µÄÎïÌ壬Êܵ½µÄÖØÁ¦·½ÏòÏàͬ | |
D£® | ²»¹ÜÎïÌåÊÇ·ñÔ˶¯£¬ÆäÊܵ½µÄÖØÁ¦´óС¶¼Ïàͬ |
A£® | Á½¼ìÑéµçºÉÊܵ糡Á¦Ïàͬ | |
B£® | Á½¼ìÑéµçºÉÊܵ糡Á¦²»Í¬ | |
C£® | ½«a´¦¼ìÑéµçºÉÑØad°áÔËÖÁd£¬µç³¡Á¦×öÕý¹¦ | |
D£® | ½«b´¦¼ìÑéµçºÉÑØbc°áÔËÖÁc£¬µç³¡Á¦×ö¸º¹¦ |