ÈçͼËùʾ£¬UÐÎÏß¿òµÄabcd´¦ÓÚÔÈÇ¿´Å³¡Ö®ÖУ¬´Å³¡µÄ´Å¸ÐӦǿ¶ÈΪB£¬·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÀ³¤¶ÈΪLµÄÖ±µ¼ÏßMNÖм䴮ÓÐÒ»µçѹ±í£¬¿ç½ÓÔÚabÓëcdÉÏ£¬ÇÒÓëab´¹Ö±£¬ËüÃÇÖ®¼äµÄ½Ó´¥ÊÇÍêÈ«¹â»¬µÄ£®RΪµç×裬CΪµçÈÝÆ÷£®ÏÖÁîMNÒÔËÙ¶Èv0ÏòÓÒÔ˶¯£¬ÓÃU±íʾµçѹ±íµÄ¶ÁÊý£¬q±íʾµçÈÝÆ÷Ëù´øµçÁ¿£¬C±íʾµçÈÝÆ÷µÄµçÈÝ£¬F±íʾ¶ÔMNµÄÀ­Á¦£®Òòµçѹ±íµÄÌå»ýºÜС£¬ÆäÖÐÏßȦÇиî´Å¸ÐÏ߶ÔMN¼äµçѹµÄÓ°Ïì¿ÉºöÂÔ£¬Ôò

[¡¡¡¡]

A£®U£½BLv0£¬F£½
B£®U£½BLv0£¬F£½0
C£®U£½0£¬F£½0
D£®U£½£¬F£½
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬UÐÎÏß¿òabcd´¦ÓÚÔÈÇ¿´Å³¡ÖУ¬´Å³¡µÄ´Å¸ÐӦǿ¶ÈΪB£¬·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÀ³¤¶ÈΪLµÄÖ±µ¼ÏßMNÖм䴮ÓÐÒ»¸öµçѹ±í¿ç½ÓÔÚabÓëcdÉÏÇÒÓëab´¹Ö±£¬ËüÃÇÖ®¼äµÄ½Ó´¥ÊÇÍêÈ«¹â»¬µÄ£¬RΪµç×裬CΪµçÈÝÆ÷£®ÏÖÁîMNÒÔËÙ¶Èv0ÏòÓÒÔÈËÙÔ˶¯£¬ÓÃU±íʾµçѹ±íµÄ¶ÁÊý£¬Q±íʾµçÈÝÆ÷Ëù´øµçºÉÁ¿£¬C±íʾµçÈÝÆ÷µÄµçÈÝ£¬F±íʾ¶ÔMNµÄÀ­Á¦£¬Éèµçѹ±íµÄÌå»ýºÜС£¬ÆäÖÐÏßȦÇиî´Å¸ÐÏ߶ÔMN¼äµÄµçѹµÄÓ°Ïì¿ÉÒÔºöÂÔ²»¼Æ£¬Ôò£¨¡¡¡¡£©
A¡¢U=BLv0   F=
V0B2L2
R
B¡¢U=0  F=0
C¡¢Q=CU     F=0
D¡¢U=0  Q=0

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º×ßÏòÇ廪±±´óͬ²½µ¼¶Á¡¡¸ß¶þÎïÀí ÌâÐÍ£º013

ÈçͼËùʾ£¬UÐÎÏß¿òabcd´¦ÓÚÔÈÇ¿´Å³¡Ö®ÖУ¬´Å³¡µÄ´Å¸ÐӦǿ¶ÈΪB£¬·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÀ³¤¶ÈΪLµÄÖ±µ¼ÏßMNÖм䴮ÓÐÒ»µçѹ±í£¬¿ç½ÓÔÚabÓëcdÉÏ£¬ÇÒÓëab´¹Ö±£¬ËüÃÇÖ®¼äµç½Ó´¥Á¼ºÃÇÒÍêÈ«¹â»¬£®RΪµç×裬CΪµçÈÝÆ÷£®ÏÖÁîMNÒÔËÙ¶Èv0ÏòÓÒÔ˶¯£¬ÓÃU±íʾµçѹ±íµÄ¶ÁÊý£¬q±íʾµçÈÝÆ÷Ëù´øµÄµçºÉÁ¿£¬C±íʾµçÈÝÆ÷µÄµçÈÝ£¬F±íʾ¶ÔMNµÄÀ­Á¦£¬Òòµçѹ±íµÄÌå»ýºÜС£¬ÆäÖÐÏßȦÇиî´Å¸ÐÏ߶ÔMN¼äµçѹµÄÓ°Ïì¿ÉºöÂÔ£¬Ôò

[¡¡¡¡]

A£®U£½v0BL£¬F£½¡¡¡¡¡¡B£®U£½v0BL£¬F£½0

C£®U£½0£¬F£½0¡¡¡¡¡¡¡¡¡¡¡¡D£®U£½q£¯C£¬F£½

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º038

ÈçͼËùʾ£¬UÐÎÏß¿òabcd´¦ÓÚÔÈÇ¿´Å³¡ÖУ¬´Å³¡µÄ´Å¸ÐӦǿ¶ÈΪB£¬·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÀ³¤¶ÈΪLµÄÖ±µ¼ÏßMNÖм䴮ÓÐÒ»¸öµçѹ±í¿ç½ÓÔÚabÓëcdÉÏÇÒÓëab´¹Ö±£¬ËüÃÇÖ®¼äµÄ½Ó´¥ÊÇÍêÈ«¹â»¬µÄ£¬RΪµç×裬CΪµçÈÝÆ÷£®ÏÖÁîMNÒÔËÙ¶Èv0ÏòÓÒÔÈËÙÔ˶¯£¬ÓÃU±íʾµçѹ±íµÄ¶ÁÊý£¬q±íʾµçÈÝÆ÷Ëù´øµçºÉÁ¿£¬C±íʾµçÈÝÆ÷µçÈÝ£¬F±íʾ¶ÔMNµÄÀ­Á¦£¬Éèµçѹ±íÌå»ýºÜС£¬ÆäÖÐÏßȦÇиî´Å¸ÐÏ߶ÔMN¼äµçѹµÄÓ°Ïì¿ÉÒÔºöÂÔ²»¼Æ£¬Ôò[¡¡]

 

A£®U£½BLv0¡¡¡¡F£½

B£®U£½BLv0¡¡¡¡F£½0

C£®U£½¡¡¡¡¡¡F£½

D£®U£½0¡¡¡¡¡¡F£½0

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£ºÎïÀí½ÌÑÐÊÒ ÌâÐÍ£º038

ÈçͼËùʾ£¬UÐÎÏß¿òabcd´¦ÓÚÔÈÇ¿´Å³¡ÖУ¬´Å³¡µÄ´Å¸ÐӦǿ¶ÈΪB£¬·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÀ³¤¶ÈΪLµÄÖ±µ¼ÏßMNÖм䴮ÓÐÒ»¸öµçѹ±í¿ç½ÓÔÚabÓëcdÉÏÇÒÓëab´¹Ö±£¬ËüÃÇÖ®¼äµÄ½Ó´¥ÊÇÍêÈ«¹â»¬µÄ£¬RΪµç×裬CΪµçÈÝÆ÷£®ÏÖÁîMNÒÔËÙ¶Èv0ÏòÓÒÔÈËÙÔ˶¯£¬ÓÃU±íʾµçѹ±íµÄ¶ÁÊý£¬q±íʾµçÈÝÆ÷Ëù´øµçºÉÁ¿£¬C±íʾµçÈÝÆ÷µçÈÝ£¬F±íʾ¶ÔMNµÄÀ­Á¦£¬Éèµçѹ±íÌå»ýºÜС£¬ÆäÖÐÏßȦÇиî´Å¸ÐÏ߶ÔMN¼äµçѹµÄÓ°Ïì¿ÉÒÔºöÂÔ²»¼Æ£¬Ôò[¡¡]

 

A£®U£½BLv0¡¡¡¡F£½

B£®U£½BLv0¡¡¡¡F£½0

C£®U£½¡¡¡¡¡¡F£½

D£®U£½0¡¡¡¡¡¡F£½0

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸