ÌâÄ¿ÄÚÈÝ

[Ñ¡×öÌâ]±¾Ìâ°üÀ¨A¡¢B¡¢CÈýСÌ⣬ÇëÑ¡¶¨ÆäÖÐÁ½Ì⣬²¢ÔÚÏàÓ¦µÄ´ðÌâÇøÓòÄÚ×÷´ð£®ÈôÈýÌⶼ×ö£¬Ôò°´A¡¢BÁ½ÌâÆÀ·Ö£®
A£®£¨Ä£¿é3-3£©
£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ   
A£®µ±ÆøÌ屻ѹËõʱ£¬·Ö×Ó¼ä¾àÀë±äС£¬±íÏÖΪ³âÁ¦£¬ËùÒÔ±ØÐèÓÃÁ¦²ÅÄÜѹËõ
B£®Òº¾§²¢²»ÊǾ§Ì壬µ«¾ßÓо§ÌåÒ»ÑùµÄ¹âѧ¸÷ÏòÒìÐÔ
C£®Ñ¸ËÙѹËõÆøÌåʱ£¬ÆøÌåζÈÒ»¶¨Éý¸ß
D£®Ò»µÎÓÍËá¾Æ¾«ÈÜÒºÌå»ýΪV£¬ÔÚË®ÃæÉÏÐγɵĵ¥·Ö×ÓÓÍĤµÄÃæ»ýΪS£¬ÔòÓÍËá·Ö×ÓµÄÖ±¾¶
£¨2£©£¨4·Ö£©ÒÑÖªÌúµÄĦ¶ûÖÊÁ¿ÎªM£¬ÃܶÈΪ¦Ñ£¬°¢·ü¼ÓµÂÂÞ³£ÊýΪN£®ÊÔÇóÒ»¿é±ß³¤ÎªdµÄÕý·½ÐÎÌú¿éÖк¬ÓÐÌúÔ­×ӵĸöÊýΪ    £®
£¨3£©Èçͼ¼×Ëùʾ£¬Í²ÐξøÈÈÆø¸×ƽ·ÅÔÚˮƽÃæÉÏ£¬ÓþøÈȵĻîÈû·â±ÕÒ»²¿·ÖÆøÌ壮»îÈûµÄºá½ØÃæ»ýΪS£¬ÖÊÁ¿Îªm£¬Íâ½ç´óÆøѹǿºãΪP£®»îÈûÓëÆø¸×Ö®¼äÎÞĦ²ÁÇÒ²»Â©Æø£¬Æø¸×ÄÚÓÐÒ»¸öµç×èË¿¿ÉÒÔ¸øÆøÌå¼ÓÈÈ£®ÏÖ°ÑÆø¸×Á¢ÆðÀ´£¬ÈçͼÒÒËùʾ£¬·¢ÏÖ»îÈûϽµ¾àÀëΪh£¬ÔòÁ¢ÆðºóÆø¸×ÄÚÆøÌå·Ö×ÓÊÆÄÜ    £¨Ìî¡°±ä´ó¡±¡¢¡°±äС¡±»ò¡°²»±ä¡±£©£»µ±µç×è˿ͨµçºó²úÉúµÄÈÈÁ¿ÎªQʱ£¬»îÈû¸ÕºÃ»Øµ½Ô­À´µÄλÖô¦ÓÚƽºâ£¬ÔòÔڴ˹ý³ÌÖУ¬ÆøÌåÄÚÄÜÔö¼ÓÁË    £®£¨ÓÃÌâÖÐÒÑÖªÎïÀíÁ¿·ûºÅ±íʾ£©
B£®£¨Ä£¿é3-4£©
£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£º   
A£®È«Ï¢ÕÕÏàÀûÓÃÁ˹âµÄÆ«ÕñÔ­Àí
B£®ÁÁ¶ÈÏàͬµÄ×ϹâÓëºì¹â²»»á·¢Éú¸ÉÉæÏÖÏó
C£®XÉäÏߵıÈ×ÏÍâÏ߸üÈÝÒ×·¢Éú¸ÉÉæÏÖÏó
D£®µØÃæÉϵÄÈË·¢ÏÖ£¬×øÔÚ¸ßËÙÀ뿪µØÇòµÄ»ð¼ýÀïµÄÈËг´úл±äÂýÁË£¬¶ø»ð¼ýÀïµÄÈË·¢ÏÖµØÃæÉϵÄÈËг´úлҲ±äÂýÁË£®
£¨2£©£¨4·Ö£©ÓÐÒ»Êø¸´É«¹âÖк¬ÓÐÁ½ÖÖµ¥É«¹â£¬ÔÚÕæ¿ÕÖÐa¹âµÄ²¨³¤´óÓÚb¹âµÄ²¨³¤£®ÈôÈô˸´É«¹âͨ¹ý°ëÔ²Ðβ£Á§×©£¬¾­¹ýÔ²ÐÄOÉäÏò¿ÕÆø£¬ÔòÏÂÁÐËĸö¹â·ͼÖзûºÏʵ¼ÊÇé¿öµÄÓУº   

£¨3£©Ò»ÁÐÑØxÖáÕý·½Ïò´«²¥µÄ¼òгºá²¨£¬ÔÚt=0ʱ¿Ì²¨¸ÕºÃ´«²¥µ½x=6m´¦µÄÖʵãA£¬ÈçͼËùʾ£¬ÒÑÖª²¨µÄ´«²¥ËÙ¶ÈΪ48m/s£®Çë»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ù´Óͼʾʱ¿ÌÆðÔÙ¾­¹ý    s£¬ÖʵãBµÚÒ»´Î´¦ÓÚ²¨·å£»
¢Úд³ö´Óͼʾʱ¿ÌÆðÖʵãAµÄÕñ¶¯·½³Ì£º    £®

C£®£¨Ä£¿é3-5£©£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÓР  
A£®µ¥É«¹â´Ó¹âÃܽéÖʽøÈë¹âÊè½éÖÊ£¬¹â×ÓµÄÄÜÁ¿²»±ä
B£®±´¿ËÀÕ¶û·¢ÏÖÁËÓ˺ͺ¬ÓË¿óÎïµÄÌìÈ»·ÅÉäÏÖÏ󣬴Ӷø½Òʾ³öÔ­×Ӻ˾ßÓи´Ôӽṹ
C£®µ±ÇâÔ­×ÓºËÍâµç×Ó´ÓµÚ3Äܼ¶Ô¾Ç¨µ½µÚ4Äܼ¶Ê±£¬ÇâÔ­×ÓÒ»¶¨ÎüÊÕÄÜÁ¿£¬µç×ӵĶ¯ÄÜÔö´ó
D£®ÔÚ¹âµçЧӦʵÑéÖУ¬ÈëÉä¹âÇ¿¶ÈԽǿ£¬²úÉúµÄ¹âµç×Ó³õ¶¯ÄܾÍÔ½´ó
£¨2£©ÏÈÍê³ÉÏÂÁк˷´Ó¦·½³Ì£¬ÔٻشðÌ⣮1327Al+24He¡ú1430Si+1n+    £»
¸ÃºË·´Ó¦ËùÊôºË·´Ó¦ÀàÐÍÊÇ   
A£®Ë¥±ä            B£®È˹¤×ª±ä            C£®Áѱä
£¨3£©¹â»¬Ë®Æ½ÃæÉÏÒ»¸öÖÊÁ¿Îª0.2kgµÄСÇòA£¬ÒÔ3m/sµÄËÙ¶ÈÓëÁíÒ»¸öÖÊÁ¿Îª0.4kgµÄ¾²Ö¹Ð¡ÇòB·¢ÉúÕýÅö£¬ÅöºóСÇòAµÄËٶȴóС±äΪ1m/s£¬ÓëÔ­À´Ëٶȷ½ÏòÏà·´£¬ÔòÔÚÅöײ¹ý³ÌÖУ¬Ð¡ÇòAµÄ¶¯Á¿±ä»¯´óСΪ    kg?m/s£¬ÅöºóСÇòBµÄËٶȴóСΪ    m/s£®
¡¾´ð°¸¡¿·ÖÎö£ºA£®£¨Ä£¿é3-3£©
£¨1£©½â´ð±¾ÌâÐèÒªÕÆÎÕ£ºÆøÌå·Ö×ÓÖ®¼ä×÷ÓÃÁ¦Ìص㣻¾§ÌåÌصãÒÔ¼°Æø̬·½³ÌÓëÈÈÁ¦Ñ§¶¨ÂÉÓ¦Óã»ÓÍĤ·¨²â·Ö×ÓÖ±¾¶£®
£¨2£©½â´ð±¾ÌâµÄ¹Ø¼üÊÇÕÆÎÕÓйذ¢·üÙ¤µÂÂÞ³£ÊýµÄÔËË㣮
£¨3£©¸ù¾Ý·Ö×Ó×ö¹¦Çé¿öÅжϷÖ×ÓÊÆÄܵı仯£¬¸ù¾ÝÌå»ý±ä»¯ÅжÏÆøÌå×ö¹¦Çé¿ö£¬È»ºó¸ù¾ÝÈÈÁ¦Ñ§µÚÒ»¶¨ÂÉÇó½â£®
B£®£¨Ä£¿é3-4£©
£¨1£©ÕýÈ·½â´ð±¾ÌâÒªÕÆÎÕ¹âµÄ¸ÉÉæ¡¢ÑÜÉäÏÖÏó£¬Ïà¶ÔÂÛÔ­ÀíµÄ¼òµ¥Ó¦Óã®
£¨2£©¸ù¾Ý¹âµÄ²¨³¤¡¢ÕÛÉäÂÊÖ®¼ä¹ØϵÒÔ¼°¹â·´Éä¡¢ÕÛÉ䡢ȫ·´ÉäÔ­Àí¿ÎÕýÈ·½â´ð£®
£¨3£©Óɲ¨ÐÎͼ¿ÉÖª²¨³¤¦Ë=8m£¬¸ù¾Ý²¨ËٺͲ¨³¤¿ÉÒÔÇó³öÖÜÆÚ´óС£¬²¨¸Õ´«µ½BʱÏòÏÂÕñ¶¯£¬ÔÙ¾­¹ýËÄ·ÖÖ®ÈýÖÜÆÚ£¬µ½´ï²¨·å£¬¾Ý´Ë¿ÉÇó³ö½á¹û£»¸ù¾ÝÖÜÆÚºÍÕñ·ù¿Éд³öÕñ¶¯·½³Ì£®
C£®£¨Ä£¿é3-5£©
£¨1£©½â´ð±¾ÌâÓ¦ÕÆÎÕ£ºÖªµÀ¹â×ÓµÄÄÜÁ¿ÓÉƵÂʾö¶¨ºÍ½éÖÊÎ޹أ»ÕýÈ·Àí½â·ÅÉäÏÖÏó£»µç×Ó¶¯Äܺ͹ìµÀ°ë¾¶Ö®¼ä¹Øϵ£»¹â×Ó×î´ó³õ¶¯ÄÜÓë¹âÕÕÇ¿¶ÈÎ޹غÍƵÂÊÓйأ®
£¨2£©Á˽âÔ­×Ӻ˵ÄÈ˹¤×ª»¯£¬¸ù¾ÝÖÊÁ¿ÊýºÍµçºÉÊýÊغãÕýÈ·ÊéдºË·´Ó¦·½³Ì£®
£¨3£©Åöײ¹ý³Ì¶¯Á¿Êغã¸ù¾Ý¶¯Á¿ÊغãÁз½³Ì¿ÉÕýÈ·Çó½â£®
½â´ð£º½â£ºA£®£¨Ä£¿é3-3£©
£¨1£©A¡¢ÆøÌå·Ö×ÓÖ®¼ä¾àÀëºÜ´ó£¬Òò´ËÆøÌå·Ö×ÓÖ®¼äµÄ×÷ÓÃÁ¦Ò»¶¨ÎªÒýÁ¦£¬ÆøÌåÄÑÒÔ±»Ñ¹Ëõ£¬Ô­ÒòÊDZ»·â±ÕÆøÌåѹǿ¶ñÔ­Òò£¬¹ÊA´íÎó¡®
B¡¢Òº¾§ÊǽéÓÚÒºÌåºÍ¹ÌÌåÖ®¼äµÄÒ»ÖÖ״̬£¬ºÍ¾§ÌåÒ»Ñù¾ßÓи÷ÏòÒìÐÔ£¬¹ÊBÕýÈ·£»
C¡¢Ñ¸ËÙѹËõÆøÌ壬ÆøÌ廹ûÓÐÀ´µÃ¼°Îü·ÅÈÈ£¬¸ù¾ÝÈÈÁ¦Ñ§µÚÒ»¶¨ÂÉ¿ÉÖª£¬Íâ½ç¶ÔÆøÌå×ö¹¦£¬ÆøÌåÄÚÄÜÔö¼Ó£¬Òò´ËζÈÒ»¶¨Éý¸ß£¬¹ÊCÕýÈ·£»
D¡¢ÌâÄ¿Öиø²»ÊÇÓÍËáÌå»ý£¬ÌâÄ¿Öиø³öµÄÌå»ý°üº¬Á˾ƾ«Ìå»ý£¬¹ÊD´íÎó£®
¹ÊÑ¡BC£®
£¨2£©Ìú¿éµÄÖÊÁ¿Îª£ºm=¦Ñd3
Ìú¿éµÄÎïÖʵÄÁ¿Îª£º
º¬ÓеÄÌúÔ­×Ó¸öÊýΪ£º   
¹Ê´ð°¸Îª£º£®
£¨3£©ÆøÌå·Ö×ÓÖ®¼äµÄ¾àÀë´óÓÚr£¬µ±ÆøÌå·Ö×Ó¾àÀë¼õСʱ£¬·Ö×ÓÁ¦×öÕý¹¦£¬·Ö×ÓÊÆÄܼõС£»
»îÈû¸ÕºÃ»Øµ½Ô­À´µÄλÖÃʱ£¬ÆøÌå¶ÔÍâ×ö¹¦´óСΪ£ºW=£¨PS+mg£©h
¸ù¾ÝÈÈÁ¦Ñ§µÚÒ»¶¨ÂÉÓУº¡÷U=W+Q
ËùÒÔÇóµÃ£º£®
¹Ê´ð°¸Îª£º±äС£¬£®
B£®£¨Ä£¿é3-4£©
£¨1£©A¡¢È«Ï¢ÕÕÏàÒ»ÖÖÀûÓò¨µÄ¸ÉÉæ¼Ç¼±»ÉãÎïÌå·´É䣨»ò͸É䣩¹â²¨ÖÐÐÅÏ¢£¨Õñ·ù¡¢Ïà룩µÄÕÕÏ༼Êõ£¬¹ÊA´íÎó£»
B¡¢ÆµÂÊÏàͬµÄ¹âÏàÓö²ÅÄÜ·¢Éú¸ÉÉæÏÖÏ󣬹ÊBÕýÈ·£»
C¡¢ÊÇ·ñÈÝÒ×·¢Éú¸ÉÉæÏÖÏóÓë¹âµÄ²¨³¤¡¢ÆµÂÊÎ޹أ¬¹ÊC´íÎó£»
D¡¢¸ù¾ÝÏà¶ÔÂÛÔ­Àí¿ÉÖªDÕýÈ·£®
¹ÊÑ¡BD£®
£¨2£©ÓÉa¹âµÄ²¨³¤´óÓÚb¹âµÄ²¨³¤¿ÉÖª£¬aµÄÕÛÉäÂʱÈbµÄÕÛÉäÂÊС£¬¸ù¾ÝÕÛÉ䶨ÂÉ¿ÉÖª£¬´Ó²£Á§ÉäÏò¿ÕÆøʱ£¬bµÄÕÛÉä½Ç´ó£¬¹ÊAÕýÈ·£¬B´íÎó£»
aµÄÕÛÉäÂÊ´ó£¬Òò´Ëa¸üÈÝÒ×·¢ÉúÈ«·´É䣬¹ÊCÕýÈ·£¬D´íÎó£®
¹ÊÑ¡AC£®
£¨3£©¢Ù¸ù¾ÝÌâÒâÓУº
²¨´ÓA´«µ½BµÄʱ¼äΪ£º
²¨´«µ½Bºó£¬ÔÚ¾­¹ýʱ¼ä£º
ËùÒÔBµÚÒ»´Î´¦ÓÚ²¨·åʱ¼äΪ£ºt=t1+t2=0.5s
¹Ê´ð°¸Îª£º0.5s£®
¢ÚÓÉͼ¿ÉÖªÕñ·ùΪA=2cm£¬£¬¦Ø=¦Ð
ËùÒÔAµÄÕñ¶¯·½³ÌΪ£ºy=-2sin12¦Ðt£¨cm£©
¹Ê´ð°¸Îª£ºy=-2sin12¦Ðt£¨cm£©£®
C£®£¨Ä£¿é3-5£©
£¨1£©A¡¢¹â×ÓÄÜÁ¿ÓÉƵÂʾö¶¨£¬Óë½éÖÊÎ޹أ¬¹ÊAÕýÈ·£»
B¡¢ÈËÃÇÈÏʶµ½Ô­×ÓºËÓи´Ôӽṹ£¬ÊÇ´ÓÌìÈ»·ÅÉäÏÖÏó¿ªÊ¼µÄ£¬¹ÊBÕýÈ·£»
C¡¢ÇâÔ­×ÓԾǨµ½¸ßÄܼ¶£¬°ë¾¶Ôö´ó£¬¶¯ÄܼõС£¬¹ÊC´íÎó£»
D¡¢¹âµç×ӵijõ¶¯ÄÜÓëÈëÉä¹âƵÂÊÓйØÓë¹âÕÕÇ¿¶ÈÎ޹أ¬¹ÊD´íÎó£»
¹ÊÑ¡AB£®
£¨2£©¸ÃºË·´Ó¦·½³ÌΪʵÏÖÔ­×ÓºËÈ˹¤×ª±äµÄ·½³Ì£¬¸ù¾ÝµçºÉÊýºÍÖÊÁ¿ÊýÊغã¿ÉÖªÁíÒ»²úÎïΪ£º1e
¹Ê´ð°¸Îª£º1e£¬B£®
£¨2£©¸ù¾ÝÌâÒâÓУº¡÷p=mv2-mv1=-0.8kg?m/s£¬
Á½ÇòÅöײ¹ý³Ì¶¯Á¿Êغ㣬ÓУºmAv1=-mAv2+mBvB
´øÈëÊý¾ÝµÃ£ºvB=2m/s£®
¹Ê´ð°¸Îª£º0.8£¬2£®
µãÆÀ£º±¾ÌâÈ«ÃæµÄ¿¼²éÁËÑ¡¿¼ÏµÁÐÄÚÈÝ£¬ÒªÇóѧÉúϵͳÕÆÎÕ֪ʶ²¢ÕýÈ·Ó¦Óã¬Òò´Ë¶ÔѧÉúÌá³ö½Ï¸ßÒªÇó£¬Òª¼ÓÇ¿Àí½âºÍÓ¦Óã®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
¾«Ó¢¼Ò½ÌÍø[Ñ¡×öÌâ]±¾Ìâ°üÀ¨A¡¢B¡¢CÈýСÌ⣬ÇëÑ¡¶¨ÆäÖÐÁ½Ì⣬²¢ÔÚÏàÓ¦µÄ´ðÌâÇøÓòÄÚ×÷´ð£®ÈôÈýÌⶼ×ö£¬Ôò°´A¡¢BÁ½ÌâÆÀ·Ö£®
A£®£¨Ä£¿é3-3£©
£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
 

A£®µ±ÆøÌ屻ѹËõʱ£¬·Ö×Ó¼ä¾àÀë±äС£¬±íÏÖΪ³âÁ¦£¬ËùÒÔ±ØÐèÓÃÁ¦²ÅÄÜѹËõ
B£®Òº¾§²¢²»ÊǾ§Ì壬µ«¾ßÓо§ÌåÒ»ÑùµÄ¹âѧ¸÷ÏòÒìÐÔ
C£®Ñ¸ËÙѹËõÆøÌåʱ£¬ÆøÌåζÈÒ»¶¨Éý¸ß
D£®Ò»µÎÓÍËá¾Æ¾«ÈÜÒºÌå»ýΪV£¬ÔÚË®ÃæÉÏÐγɵĵ¥·Ö×ÓÓÍĤµÄÃæ»ýΪS£¬ÔòÓÍËá·Ö×ÓµÄÖ±¾¶d=
VS

£¨2£©£¨4·Ö£©ÒÑÖªÌúµÄĦ¶ûÖÊÁ¿ÎªM£¬ÃܶÈΪ¦Ñ£¬°¢·ü¼ÓµÂÂÞ³£ÊýΪN0£®ÊÔÇóÒ»¿é±ß³¤ÎªdµÄÕý·½ÐÎÌú¿éÖк¬ÓÐÌúÔ­×ӵĸöÊýΪ
 
£®
£¨3£©Èçͼ¼×Ëùʾ£¬Í²ÐξøÈÈÆø¸×ƽ·ÅÔÚˮƽÃæÉÏ£¬ÓþøÈȵĻîÈû·â±ÕÒ»²¿·ÖÆøÌ壮»îÈûµÄºá½ØÃæ»ýΪS£¬ÖÊÁ¿Îªm£¬Íâ½ç´óÆøѹǿºãΪP0£®»îÈûÓëÆø¸×Ö®¼äÎÞĦ²ÁÇÒ²»Â©Æø£¬Æø¸×ÄÚÓÐÒ»¸öµç×èË¿¿ÉÒÔ¸øÆøÌå¼ÓÈÈ£®ÏÖ°ÑÆø¸×Á¢ÆðÀ´£¬ÈçͼÒÒËùʾ£¬·¢ÏÖ»îÈûϽµ¾àÀëΪh£¬ÔòÁ¢ÆðºóÆø¸×ÄÚÆøÌå·Ö×ÓÊÆÄÜ
 
£¨Ìî¡°±ä´ó¡±¡¢¡°±äС¡±»ò¡°²»±ä¡±£©£»µ±µç×è˿ͨµçºó²úÉúµÄÈÈÁ¿ÎªQʱ£¬»îÈû¸ÕºÃ»Øµ½Ô­À´µÄλÖô¦ÓÚƽºâ£¬ÔòÔڴ˹ý³ÌÖУ¬ÆøÌåÄÚÄÜÔö¼ÓÁË
 
£®£¨ÓÃÌâÖÐÒÑÖªÎïÀíÁ¿·ûºÅ±íʾ£©
B£®£¨Ä£¿é3-4£©
£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£º
 

A£®È«Ï¢ÕÕÏàÀûÓÃÁ˹âµÄÆ«ÕñÔ­Àí
B£®ÁÁ¶ÈÏàͬµÄ×ϹâÓëºì¹â²»»á·¢Éú¸ÉÉæÏÖÏó
C£®XÉäÏߵıÈ×ÏÍâÏ߸üÈÝÒ×·¢Éú¸ÉÉæÏÖÏó
D£®µØÃæÉϵÄÈË·¢ÏÖ£¬×øÔÚ¸ßËÙÀ뿪µØÇòµÄ»ð¼ýÀïµÄÈËг´úл±äÂýÁË£¬¶ø»ð¼ýÀïµÄÈË·¢ÏÖµØÃæÉϵÄÈËг´úлҲ±äÂýÁË£®
£¨2£©£¨4·Ö£©ÓÐÒ»Êø¸´É«¹âÖк¬ÓÐÁ½ÖÖµ¥É«¹â£¬ÔÚÕæ¿ÕÖÐa¹âµÄ²¨³¤´óÓÚb¹âµÄ²¨³¤£®ÈôÈô˸´É«¹âͨ¹ý°ëÔ²Ðβ£Á§×©£¬¾­¹ýÔ²ÐÄOÉäÏò¿ÕÆø£¬ÔòÏÂÁÐËĸö¹â·ͼÖзûºÏʵ¼ÊÇé¿öµÄÓУº
 

¾«Ó¢¼Ò½ÌÍø
£¨3£©Ò»ÁÐÑØxÖáÕý·½Ïò´«²¥µÄ¼òгºá²¨£¬ÔÚt=0ʱ¿Ì²¨¸ÕºÃ´«²¥µ½x=6m´¦µÄÖʵãA£¬ÈçͼËùʾ£¬ÒÑÖª²¨µÄ´«²¥ËÙ¶ÈΪ48m/s£®Çë»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ù´Óͼʾʱ¿ÌÆðÔÙ¾­¹ý
 
s£¬ÖʵãBµÚÒ»´Î´¦ÓÚ²¨·å£»
¢Úд³ö´Óͼʾʱ¿ÌÆðÖʵãAµÄÕñ¶¯·½³Ì£º
 
£®
¾«Ó¢¼Ò½ÌÍø
C£®£¨Ä£¿é3-5£©£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÓÐ
 

A£®µ¥É«¹â´Ó¹âÃܽéÖʽøÈë¹âÊè½éÖÊ£¬¹â×ÓµÄÄÜÁ¿²»±ä
B£®±´¿ËÀÕ¶û·¢ÏÖÁËÓ˺ͺ¬ÓË¿óÎïµÄÌìÈ»·ÅÉäÏÖÏ󣬴Ӷø½Òʾ³öÔ­×Ӻ˾ßÓи´Ôӽṹ
C£®µ±ÇâÔ­×ÓºËÍâµç×Ó´ÓµÚ3Äܼ¶Ô¾Ç¨µ½µÚ4Äܼ¶Ê±£¬ÇâÔ­×ÓÒ»¶¨ÎüÊÕÄÜÁ¿£¬µç×ӵĶ¯ÄÜÔö´ó
D£®ÔÚ¹âµçЧӦʵÑéÖУ¬ÈëÉä¹âÇ¿¶ÈԽǿ£¬²úÉúµÄ¹âµç×Ó³õ¶¯ÄܾÍÔ½´ó
£¨2£©ÏÈÍê³ÉÏÂÁк˷´Ó¦·½³Ì£¬ÔٻشðÌ⣮1327Al+24He¡ú1430Si+01n+
 
£»
¸ÃºË·´Ó¦ËùÊôºË·´Ó¦ÀàÐÍÊÇ
 

A£®Ë¥±ä            B£®È˹¤×ª±ä            C£®Áѱä
£¨3£©¹â»¬Ë®Æ½ÃæÉÏÒ»¸öÖÊÁ¿Îª0.2kgµÄСÇòA£¬ÒÔ3m/sµÄËÙ¶ÈÓëÁíÒ»¸öÖÊÁ¿Îª0.4kgµÄ¾²Ö¹Ð¡ÇòB·¢ÉúÕýÅö£¬ÅöºóСÇòAµÄËٶȴóС±äΪ1m/s£¬ÓëÔ­À´Ëٶȷ½ÏòÏà·´£¬ÔòÔÚÅöײ¹ý³ÌÖУ¬Ð¡ÇòAµÄ¶¯Á¿±ä»¯´óСΪ
 
kg?m/s£¬ÅöºóСÇòBµÄËٶȴóСΪ
 
m/s£®
£¨2011?½­ËÕÄ£Ä⣩[Ñ¡×öÌâ]±¾Ìâ°üÀ¨A¡¢B¡¢CÈýСÌ⣬ÇëÑ¡¶¨ÆäÖÐÁ½Ì⣬²¢ÔÚÏàÓ¦µÄ´ðÌâÇøÓòÄÚ×÷´ð£®ÈôÈýÌⶼ×ö£¬Ôò°´A¡¢BÁ½ÌâÆÀ·Ö£®
A£®£¨Ñ¡ÐÞÄ£¿é3-3£©
£¨1£©ÓÉÒÔÏÂÊý¾ÝÄܹÀËã³öË®·Ö×ÓÖ±¾¶µÄÊÇ
D
D

A£®Ë®µÄÖÊÁ¿¡¢Ë®µÄÌå»ýºÍ°¢·ü¼ÓµÂÂÞ³£Êý
B£®Ë®µÄÖÊÁ¿¡¢Ë®µÄÃܶȺͰ¢·ü¼ÓµÂÂÞ³£Êý
C£®Ë®µÄĦ¶ûÖÊÁ¿ºÍ°¢·ü¼ÓµÂÂÞ³£Êý
D£®Ë®µÄĦ¶ûÌå»ýºÍ°¢·ü¼ÓµÂÂÞ³£Êý
£¨2£©ÈçͼÒÒËùʾ£¬ÓÃÒ»¸ùÓë¾øÈÈ»îÈûÏàÁ¬µÄϸÏß½«¾øÈÈÆø¸×Ðü¹ÒÔÚijһ¸ß¶È¾²Ö¹²»¶¯£¬Æø¸×¿ª¿ÚÏòÉÏ£¬ÄÚ·â±ÕÒ»¶¨ÖÊÁ¿µÄÆøÌ壨·Ö×Ó¼äµÄÏ໥×÷ÓÃÁ¦ºöÂÔ²»¼Æ£©£¬¸×ÄÚ»îÈû¿ÉÒÔÎÞĦ²ÁÒƶ¯ÇÒ²»Â©Æø£¬ÏÖ½«Ï¸Ïß¼ô¶Ï£¬ÈÃÆø¸××ÔÓÉÏÂÂ䣬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
BD
BD

A£®ÆøÌåѹǿ¼õС£¬ÆøÌå¶ÔÍâ½ç×ö¹¦
B£®ÆøÌåѹǿÔö´ó£¬Íâ½ç¶ÔÆøÌå×ö¹¦
C£®ÆøÌåÌå»ýÔö´ó£¬ÆøÌåÄÚÄܼõС
D£®ÆøÌåÌå»ý¼õС£¬ÆøÌåÄÚÄÜÔö´ó
£¨3£©Èçͼ¼×Ëùʾ£¬Ò»Ô²ÖùÐξøÈÈÆø¸×ÊúÖ±·ÅÖã¬Í¨¹ý¾øÈÈ»îÈû·â±Õ×ÅÒ»¶¨ÖÊÁ¿µÄÀíÏëÆøÌ壮»îÈûµÄÖÊÁ¿Îªm£¬ºá½ØÃæ»ýΪS£¬´Ëʱ»îÈû´¦ÓÚƽºâ״̬£¬ÆøÌåµÄζÈΪT1£®ÏÖͨ¹ýµçÈÈË¿»ºÂý¼ÓÈÈÆøÌ壬ÔÚÆøÌåÎüÊÕÈÈÁ¿ÎªQµÄ¹ý³ÌÖУ¬ÆøÌå¶Ô»îÈû×ö¹¦µÄ´óСΪW£®ÒÑÖª´óÆøѹǿΪp0£¬ÖØÁ¦¼ÓËÙ¶ÈΪg£¬²»¼Æ»îÈûÓëÆø¸×µÄĦ²Á£®Çó£º
¢ÙÆøÌåµÄѹǿ£»
¢Ú¼ÓÈȹý³ÌÖÐÆøÌåµÄÄÚÄÜÔö¼ÓÁ¿£»
B£®£¨Ñ¡ÐÞÄ£¿é3-4£©
£¨1£©ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ
AC
AC
£®
A£®¼¤¹â±ÈÆÕͨ¹âÔ´µÄÏà¸ÉÐÔºÃ
B£®×ÏÍâÏßÔÚË®ÖеĴ«²¥ËٶȴóÓÚºìÍâÏßÔÚË®ÖеĴ«²¥ËÙ¶È
C£®ÔÚ¹âµÄÑÜÉäʵÑéÖУ¬³öÏÖÃ÷ÌõÎƵĵط½¹â×Óµ½´ïµÄ¸ÅÂʽϴó
D£®½ÓÊÕµç´Å²¨Ê±Ê×ÏÈÒª½øÐе÷Ƶ
£¨2£©Ò»ÁÐÑØxÖáÕý·½Ïò´«²¥µÄ¼òгºá²¨£¬t=0ʱ¿ÌµÄ²¨ÐÎÈçͼÖÐʵÏßËùʾ£¬t=0.2sʱ¿ÌµÄ²¨ÐÎÈçͼ±ûÖÐÐéÏßËùʾ£¬Ôò£º
A£®ÖʵãPµÄÔ˶¯·½ÏòÏòÓÒ
B£®²¨µÄÖÜÆÚ¿ÉÄÜΪ0.27s
C£®²¨µÄ´«²¥ËٶȿÉÄÜΪ630m/s
D£®²¨µÄƵÂÊ¿ÉÄÜΪ1.25Hz
£¨3£©Èçͼ¶¡Ëùʾ£¬ABCΪ²£Á§ÈýÀâ¾µµÄºá½ØÃ棬¡ÏA=30¡ã£¬¡ÏB=60¡ã£¬BC=3cm£¬Ò»ÌõƽÐÐÓÚAC±ßµÄ¹âÏß´ÓOµã´¹Ö±ÉäÏòÀâ¾µ£¬OC=2cm£¬ÒÑÖªÀâ¾µ¶Ô¹âµÄÕÛÉäÂÊΪn=1.5£¬ÊÔÇó¹âÏßÔÚÀâ¾µÄÚ´«²¥µÄ×î¶Ìʱ¼äÊǶàÉÙ£¿
C£® £¨Ñ¡ÐÞÄ£¿é3-5£©
£¨1£©Õýµç×Ó£¨PET£©·¢Éä¼ÆËã»ú¶Ï²ãÏÔÏñµÄ»ù±¾Ô­ÀíÊÇ£º½«·ÅÉäÐÔͬλËØ
 
15
8
O
×¢ÈëÈËÌ壬²ÎÓëÈËÌåµÄ´úл¹ý³Ì£®
 
15
8
O
ÔÚÈËÌåÄÚË¥±ä·Å³öÕýµç×Ó£¬ÓëÈËÌåÄÚ¸ºµç×ÓÏàÓö¶øäÎÃðת»¯ÎªÒ»¶Ô¹â×Ó£¬±»Ì½²âÆ÷̽²âµ½£¬¾­¼ÆËã»ú´¦Àíºó²úÉúÇåÎúµÄͼÏ󣮸ù¾ÝPETÔ­Àí£¬»Ø´ðÏÂÁÐÎÊÌ⣺
¢Ùд³ö
 
15
8
O
µÄË¥±äµÄ·½³Ìʽ
 
15
8
O¡ú
 
15
7
N+
 
0
1
e
 
15
8
O¡ú
 
15
7
N+
 
0
1
e
£®
¢Ú½«·ÅÉäÐÔͬλËØ
 
15
8
O
×¢ÈëÈËÌ壬
 
15
8
O
µÄÖ÷ÒªÓÃ;
B
B

A£®ÀûÓÃËüµÄÉäÏß       B£®×÷Ϊʾ×ÙÔ­×Ó
C£®²ÎÓëÈËÌåµÄ´úл¹ý³Ì  D£®ÓÐÑõºôÎü
¢ÛPETÖÐËùÑ¡µÄ·ÅÉäÐÔͬλËصİëË¥ÆÚÓ¦
¶Ì
¶Ì
£®£¨Ìî¡°³¤¡±»ò¡°¶Ì¡±»ò¡°³¤¶Ì¾ù¿É¡±£©
£¨2£©Ò»Á¾Ð¡³µÔڹ⻬ˮƽÃæÉÏÒÔv1=1m/sµÄËÙ¶ÈÏòÓÒÔ˶¯£¬Ð¡³µµÄÖÊÁ¿ÎªM=100kg£¬Ò»ÖÊÁ¿Îªm=50kgµÄÈË´ÓС³µµÄÓÒ¶ËÓ­ÃæÌøÉÏС³µ£¬½Ó´¥Ð¡³µÇ°µÄ˲¼äÈ˵ÄˮƽËٶȴóСΪv2=5.6m/s£®ÇóÈËÌøÉÏС³µºó£¬È˺ÍС³µµÄ¹²Í¬ËٶȺÍÈËÌøÉÏС³µµÄ¹ý³ÌÖÐÈ˶ÔС³µ×öµÄ¹¦£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø