ÌâÄ¿ÄÚÈÝ
ijЩ½¨Öþ²ÄÁϿɲúÉú·ÅÉäÐÔÆøÌåë±£¬ë±¿ÉÒÔ·¢Éú¦Á»ò¦ÂË¥±ä£¬Èç¹ûÈ˳¤ÆÚÉú»îÔÚë±Å¨¶È¹ý¸ßµÄ»·¾³ÖУ¬ÄÇô£¬ë±¾¹ýÈ˵ĺôÎüµÀ³Á»ýÔڷβ¿£¬²¢´óÁ¿·Å³öÉäÏߣ¬´Ó¶øΣº¦ÈËÌ彡¿µ¡£ÔÀ´¾²Ö¹µÄÖÊÁ¿ÎªMµÄ뱺ˣ¨22286Rn£©·¢ÉúÒ»´Î¦ÁË¥±äÉú³ÉкËîÇ£¨Po£©¡£ÒÑ֪˥±äºóµÄ¦ÁÁ£×ÓµÄÖÊÁ¿Îªm¡¢µçºÉÁ¿Îªq¡¢ËÙ¶ÈΪv£¬²¢¼ÙÉèË¥±ä¹ý³ÌÖÐÊͷŵĺËÄÜÈ«²¿×ª»¯Îª¦ÁÁ£×ÓºÍк˵Ķ¯ÄÜ¡££¨×¢£ºÉæ¼°¶¯Á¿ÎÊÌâʱ£¬¿÷ËðµÄÖÊÁ¿¿ÉºöÂÔ²»¼Æ£©
£¨1£©Ð´³öË¥±ä·½³Ì£»
£¨2£©Çó³öË¥±ä¹ý³ÌÖеÄÖÊÁ¿¿÷Ëð¡£
£¨1£©Ð´³öË¥±ä·½³Ì£»
£¨2£©Çó³öË¥±ä¹ý³ÌÖеÄÖÊÁ¿¿÷Ëð¡£
½â£º£¨1£©
£¨2£©ÉèкËîǵÄËÙ¶ÈΪv'
Óɶ¯Á¿Êغ㶨ÂÉmv=£¨M-m£©v'£¬µÃ
Ë¥±ä¹ý³ÌÖÐÊͷŵĺËÄÜΪ
ÓÉ°®Òò˹̹ÖÊÄÜ·½³Ì£¬µÃ£º¡÷E=¡÷m¡¤c2
½âµÃ

£¨2£©ÉèкËîǵÄËÙ¶ÈΪv'
Óɶ¯Á¿Êغ㶨ÂÉmv=£¨M-m£©v'£¬µÃ

Ë¥±ä¹ý³ÌÖÐÊͷŵĺËÄÜΪ

ÓÉ°®Òò˹̹ÖÊÄÜ·½³Ì£¬µÃ£º¡÷E=¡÷m¡¤c2
½âµÃ


Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿