ÌâÄ¿ÄÚÈÝ
2012Äê9ÔÂ25ÈÕÉÏÎ磬ÖйúÊ×ËÒº½¿Õĸ½¢¡°ÁÉÄþ¡±ºÅÕýʽ½»½Ó·þÒÛ£¬´Ó´ËÖйú°ÚÍÑÁËûÓк½Ä¸µÄÀúÊ·£®º½Ä¸ÉÏ°²×°ÓÐÎÀÐÇͨѶÌìÏß¡¢ÓÐÔ´Ïà¿ØÕóÀ×´ïµÈÉ豸£¬Å䱸½ü·ÀÎäÆ÷ϵͳºÍ¸÷Ðͽ¢ÔØ»ú£¬ÓйزÎÊýϱíËùʾ£®ÐÂÐ͹̶¨Òí½¢ÔØ»úÔÚ¡°ÁÉÄþ¡±ºÅº½Ä¸ÑµÁ·Æ½Ì¨ÉϵÄ×ÅÂä¡¢Æð·ÉÊÔÑéÒÑÈ¡µÃ³É¹¦£®
ÁÉÄþºÅº½¿Õĸ½¢²ÎÊý | |||
ÂúÔØÅÅË®Á¿/t | 67500 | ×ܹ¦ÂÊ/kW | 1.5¡Á105 |
¶¯Á¦Ìṩ£¨È¼ÁÏ£© | ÖØÓÍ | ×î¸ßº½ËÙkm/h | 54 |
×î´ó½¢³¤/m | 304 | ×î´ó½¢¿í/m | 70.5 |
·¢¶¯»úµÄЧÂÊ/% | 25 | ×î´ó½¢ÔØ»úÊýÁ¿/¼Ü | 30 |
£¨1£©ÏÂÁÐÓйغ½Ä¸¡¢½¢ÔØ·É»úµÄ˵·¨²»ÕýÈ·µÄÊÇ______
A£®·É»ú¾²Ö¹ÔÚº½Ä¸¼×°åʱ£¬·É»úÊܵ½µÄÖØÁ¦ÓëÖ§³ÖÁ¦ÊÇÒ»¶ÔƽºâÁ¦
B£®·É»úÆð·Éʱ£¬»ñµÃÍÆÁ¦µÄÊ©Á¦ÎïÌåÊÇ·¢¶¯»ú
C£®·É»úÆð·Éʱ£¬ÊÇÀûÓÃÁ¦µÄ×÷ÓÃÊÇÏ໥µÄÀ´»ñµÃÍÆÁ¦µÄ
D£®·É»ú½µÂäʱ£¬ÒÔ·É»úΪ²ÎÕÕÎÔòº½Ä¸ÊÇÔ˶¯µÄ
£¨2£©º½Ä¸ÉϵÄÀ×´ï·¢Ïֵз½µÄ¾üÊÂÄ¿±ê£¬ÊÇÀûÓÃÁË______£¨Ñ¡Ìî¡°µç´Å²¨¡±»ò¡°³¬Éù²¨¡±£©£®
£¨3£©¸Ãº½Ä¸ÂúÔØÐÐÊ»Êܵ½µÄ¸¡Á¦______N£®ÔÚij´ÎѵÁ·ÖУ¬Ö¸»ÓÔ±Ïò¼ß-15·ÉÐÐԱϴïÆð·ÉÖ¸Áîºó£¬¹Òµ¯ºóÖÊÁ¿´ï22tµÄ½¢ÔØ»ú´ÓÅܵÀÉÏÆð·Éºó£¬½¢µ×ËùÊܺ£Ë®µÄѹǿ½«______£¨Ìî±ä»¯Çé¿ö£©£¬º½Ä¸ÅÅ¿ªº£Ë®µÄÌå»ý½«¼õС______m3£¨¦Ñº£Ë®=1.1¡Á103kg/m3£¬gÈ¡10N/kg£©£®
£¨4£©Èç¹ûº½Ä¸×ܹ¦ÂÊÈ«²¿ÓÃÀ´ÌṩËüÏòÇ°µÄÇ£ÒýÁ¦£¬µ±º½Ä¸ÒÔ×î¸ßº½ËÙ54km/hº½ÐÐʱ£¬Ëü²úÉúµÄÇ£ÒýÁ¦ÊÇ______N£¬ÈôÔÚÕâÖÖ״̬ÏÂÔÈËÙº½ÐÐ1000km£¬º½Ä¸·¢¶¯»úµÄЧÂÊΪ25%£¬ÖÁÉÙÐèҪȼÉÕ______tµÄÖØÓÍ£®£¨ÖØÓ͵ÄÈÈֵΪ4.0¡Á107J/kg£©
£¨5£©Èôº½Ä¸´¢´æȼÓ͵ÄÖÊÁ¿Ò»¶¨£¬ËüÔÚË®Öк½ÐÐʱÊܵ½µÄ×èÁ¦Ó뺽ËÙµÄƽ·½³ÉÕý±È£¬º½Ä¸______£¨Ñ¡Ìî¡°µÍËÙ¡±»ò¡°¸ßËÙ¡±£©ÔÈËÙÐÐʻʱÐøº½Àï³Ì£¨Á¬Ðøº½ÐеÄ×î´ó¾àÀ룩´ó£¬ÒòΪ______£®
B¡¢·É»úÆð·Éʱ£¬»ñµÃÍÆÁ¦µÄÊ©Á¦ÎïÌåÊÇ¿ÕÆø£¬¸ÃÑ¡Ïî˵·¨²»ÕýÈ·£¬·ûºÏÌâÒ⣻
C¡¢·É»úÆð·Éʱ£¬ÂÝÐý½°×ª¶¯¶Ô¿ÕÆøÊ©¼ÓÏòºóµÄÍÆÁ¦£¬ÓÉÓÚÎïÌå¼äÁ¦µÄ×÷ÓÃÊÇÏ໥µÄ£¬Òò´Ë¿ÕÆøͬʱ¶Ô·É»úÊ©¼ÓÏòÇ°µÄÍÆÁ¦£¬·É»ú¾ÍÆð·ÉÁË£¬¸ÃÑ¡Ïî˵·¨ÕýÈ·£¬²»·ûºÏÌâÒ⣻
D¡¢·É»ú½µÂäʱ£¬ÒÔ·É»úΪ²ÎÕÕÎº½Ä¸µÄλÖò»¶Ï·¢Éú±ä»¯£¬Òò´Ëº½Ä¸ÊÇÔ˶¯µÄ£¬¸ÃÑ¡Ïî˵·¨ÕýÈ·£¬²»·ûºÏÌâÒ⣻
£¨2£©º½Ä¸ÉϵÄÀ×´ï·¢Ïֵз½µÄ¾üÊÂÄ¿±ê£¬ÊÇÀûÓÃÁ˵ç´Å²¨´«µÝÐÅÏ¢µÄ£»
£¨3£©¢Ùº½Ä¸ÂúÔØÅÅË®Á¿ÊÇ67500t£¬Òò´ËÊܵ½µÄ¸¡Á¦F¸¡=GÅÅ=mÅÅg=67500¡Á103kg¡Á10N/kg=6.75¡Á108N£»
¢Ú½¢ÔØ»ú´ÓÅܵÀÉÏÆð·Éºó£¬º½Ä¸½«»áÉϸ¡Ò»Ð©£¬½¢µ×ËùÊܺ£Ë®µÄѹǿ¼õС£»
¢Ûº½Ä¸ÅÅ¿ªº£Ë®µÄÌå»ýVÅÅ===20m3£»
£¨4£©º½Ä¸×î¸ßº½ËÙV=54km/h=15m/sº½ÐÐʱ£¬
¡ßP=FV
¡àF===1¡Á107N£»
ÔÚÕâÖÖ״̬ÏÂÔÈËÙº½ÐÐ1000km£¬ÐèÒªµÄ»úеÄÜW=FS=1¡Á107N¡Á1000¡Á103m=1¡Á1013J£»
º½Ä¸·¢¶¯»úµÄЧÂʦÇ=25%£¬Òò´ËÐèÒªÖØÓͷųöµÄÈÈÁ¿Q===4¡Á1013J£»
¡ßQ=qm
¡àÐèÒªÍêȫȼÉÕÖØÓ͵ÄÖÊÁ¿m===1¡Á106kg=103t£®
£¨5£©¡ßȼÓÍÖÊÁ¿¡¢È¼ÓÍÈÈÖµ¡¢º½Ä¸·¢¶¯»úЧÂÊÒ»¶¨£¬
¡à¿Ë·þ×èÁ¦µÄ¹¦Ò»¶¨£¬
µ±º½Ä¸ÔÈËÙÐÐʻʱ£¬W=Fs=fs£¬¿É¼û×èÁ¦Ó뺽ËÙµÄƽ·½³ÉÕý±È£¬
¡àÐøº½Àï³ÌÓ뺽ËÙµÄƽ·½³É·´±È£¬µÍËÙÐÐʻʱÐøº½Àï³Ì´ó£®
¹Ê´ð°¸Îª£º£¨1£©B£»
£¨2£©µç´Å²¨£»
£¨3£©6.75¡Á108£»±äС£»20£»
£¨4£©1¡Á107£»103£»
£¨5£©µÍËÙÐÐʻʱÐøº½Àï³Ì´ó£»ÒòΪȼÓÍÖÊÁ¿¡¢È¼ÓÍÈÈÖµ¡¢º½Ä¸·¢¶¯»úЧÂÊÒ»¶¨£¬ËùÒÔ¿Ë·þ×èÁ¦µÄ¹¦Ò»¶¨£¬¸ù¾ÝW=FS£¬º½Ä¸ÔÈËÙÐÐʻʱ£¬W=fS£¨¶þÁ¦Æ½ºâÌõ¼þ£¬F=f£©£®×èÁ¦Ó뺽ËÙµÄƽ·½³ÉÕý±È£¬ËùÒÔ£¬Ðøº½Àï³ÌÓ뺽ËÙµÄƽ·½³É·´±È£¨W=fS=kv2s£©£¬µÍËÙÐÐʻʱÐøº½Àï³Ì´ó£®
·ÖÎö£º£¨1£©¢ÙÎïÌå¾²Ö¹»ò×öÔÈËÙÖ±ÏßÔ˶¯Ê±£¬Êܵ½µÄÁ¦Æ½ºâÁ¦£»
¢ÚÁ¦ÊÇÎïÌå¶ÔÎïÌåµÄ×÷Óã¬ÎïÌå¼äÁ¦µÄ×÷ÓÃÊÇÏ໥µÄ£»
¢ÛÅжÏÎïÌåÔ˶¯»¹ÊǾ²Ö¹µÄ£¬ÒªÑ¡Ôñ²ÎÕÕÎѡÔñµÄ²ÎÕÕÎﲻͬ£¬µÃ³öµÄ½áÂÛÒ²¿ÉÄܲ»Í¬£®
£¨2£©µç´Å²¨Äܹ»´«µÝÐÅÏ¢£¬²¢ÇÒÄÜÔÚÕæ¿ÕÖд«²¥£»
£¨3£©ÖªµÀº½Ä¸ÂúÔØʱµÄÅÅË®Á¿£¬ÀûÓð¢»ùÃ×µÂÔÀíÇó³öº½Ä¸µÄ¸¡Á¦£¬¹Òµ¯ºóÖÊÁ¿´ï22tµÄ½¢ÔØ»ú´ÓÅܵÀÉÏÆð·Éºó£¬º½Ä¸Éϸ¡£¬¸ù¾ÝÒºÌåѹǿÌصã·ÖÎö½¢µ×Êܵ½Ñ¹Ç¿µÄ±ä»¯£»Æð·ÉµÄ½¢ÔØ»úµÄÖÊÁ¿¾ÍÊǼõÉÙµÄÅÅ¿ªº£Ë®µÄÖÊÁ¿£¬¸ù¾ÝÃܶȼÆË㹫ʽÇó³ö¼õСµÄÅÅ¿ªº£Ë®µÄÌå»ý£»
£¨4£©ÖªµÀº½Ä¸×î¸ßº½ËÙ£¬ÀûÓÃP=FvÇó´ËʱµÄÇ£ÒýÁ¦£»ÖªµÀÐÐÊ»µÄ¾àÀ룬ÀûÓÃW=Fs¼ÆË㺽ĸ×öµÄÓÐÓù¦£¨ÓÐÓÃÄÜÁ¿£©£»¸ù¾ÝЧÂʹ«Ê½ÇóȼÁÏÍêȫȼÉշųöµÄÈÈÁ¿£¨×ÜÄÜÁ¿£©£¬ÔÙÀûÓÃQ=mqÇóÖÁÉÙÐèҪȼÉÕÖØÓ͵ÄÖÊÁ¿£»
£¨5£©È¼ÓÍÖÊÁ¿¡¢È¼ÓÍÈÈÖµ¡¢º½Ä¸·¢¶¯»úЧÂÊÒ»¶¨£¬¿Ë·þ×èÁ¦µÄ¹¦Ò»¶¨£¬µ±º½Ä¸ÔÈËÙÐÐʻʱ£¬W=Fs=fs£¬¿É¼û×èÁ¦Ó뺽ËÙµÄƽ·½³ÉÕý±È£¬ËùÒÔÐøº½Àï³ÌÓ뺽ËÙµÄƽ·½³É·´±È£¬µÍËÙÐÐʻʱÐøº½Àï³Ì´ó£®
µãÆÀ£º±¾ÌâÒÔº½Ä¸ÎªÌ⿼²éÁËÏà¹ØµÄÎïÀí֪ʶ£¬×ÛºÏÐÔºÜÇ¿£¬¼ÆËãÁ¿±È½Ï´ó£¬¾ßÓÐÒ»¶¨µÄÄѶȣ®