·ÖÎö ¢ÙÁ½²¿·ÖÆøÌå·¢ÉúµÈα仯£¬¸ù¾Ý²£Òâ¶ú¶¨Âɼ´¿ÉÇó½â
¢ÚÏȼÙÉè»îÈû·¢ÉúÒƶ¯£¬¸ù¾ÝÀíÏëÆøÌå״̬·½³Ì¼ÆËãµÃµ½»îÈû²»Òƶ¯£¬Á½²¿·ÖÆøÌå·¢ÉúµÈÈݱ仯£¬ÔÙ¸ù¾Ý²éÀí¶¨ÂÉÁÐʽ¼ÆËã
½â´ð ½â£º¢Ù´ò¿ª·§Ãźó£¬Á½²¿·ÖÆøÌå¿ÉÒÔÈÏΪ·¢ÉúµÄÊǵÈα仯
ÉèƽºâºóA¡¢BÄÚÀíÏëÆøÌåµÄѹǿ¾ùΪ${p}_{2}^{\;}$£¬»îÈûÏòÓÒÒƶ¯x£¬Óɲ£Òâ¶ú¶¨ÂɵÃ
AÖÐÆøÌå${p}_{1}^{\;}LS={p}_{2}^{\;}£¨L+x£©S$
BÖÐÆøÌå$\frac{1}{2}{p}_{1}^{\;}LS={p}_{2}^{\;}£¨L-x£©S$
½âµÃ$x=\frac{L}{3}$£¬${p}_{2}^{\;}=\frac{3}{4}{p}_{1}^{\;}$
¢ÚÉ轵κóÆû¸×ÄÚ»îÈûÏòÓÒÒƶ¯${x}_{0}^{\;}$£¬Á½²¿·ÖÆøÌåѹǿΪ${p}_{3}^{\;}$£¬ÓÉÀíÏëÆøÌå״̬·½³ÌµÃ
AÖÐÆøÌå$\frac{{p}_{2}^{\;}•\frac{4}{3}LS}{{T}_{0}^{\;}}=\frac{{p}_{3}^{\;}£¨\frac{4}{3}L+{x}_{0}^{\;}£©S}{0.95{T}_{0}^{\;}}$
BÖÐÆøÌå$\frac{{p}_{2}^{\;}•\frac{2}{3}LS}{{T}_{0}^{\;}}=\frac{{p}_{3}^{\;}•£¨\frac{2}{3}L-{x}_{0}^{\;}£©S}{0.95{T}_{0}^{\;}}$
½âµÃ${x}_{0}^{\;}=0$£¬¼´»îÈû²¢²»·¢ÉúÒƶ¯£¬Òò´Ë½µÎ¹ý³ÌÁ½²¿·ÖÆøÌå·¢ÉúµÄÊǵÈÈݱ仯
¶ÔAÖÐÆøÌ壬Óɲ£Òâ¶ú¶¨ÂɵÃ$\frac{{p}_{2}^{\;}}{{T}_{0}^{\;}}=\frac{{p}_{3}^{\;}}{0.95{T}_{0}^{\;}}$
½âµÃ${p}_{3}^{\;}=0.95{p}_{2}^{\;}=\frac{57}{80}{p}_{0}^{\;}$
¸ù¾ÝÆøÌå״̬ƽºâÖª£¬BÖÐÆøÌåµÄѹǿҲΪ$\frac{57}{80}{p}_{0}^{\;}$
´ð£º¢Ù»îÈûCÒƶ¯µÄ¾àÀë$\frac{L}{3}$¼°Æ½ºâºóBÖÐÆøÌåµÄѹǿ$\frac{3}{4}{p}_{1}^{\;}$£»
¢ÚÈôƽºâºó¿ÕÆøζȽµÎª0.95T£¬ÔòÆû¸×ÖлîÈû²»Òƶ¯£¬Á½Æû¸×ÖеÄÆøÌåѹǿ¾ùΪ$\frac{57}{80}{p}_{0}^{\;}$
µãÆÀ ±¾ÌâÖ÷Òª¿¼²éÆøÌåʵÑ鶨Âɼ°ÀíÏëÆøÌå״̬·½³ÌµÄÓ¦Ó㬱¾ÌâµÚÒ»Îʺܻù´¡£¬µÚ¶þÎÊÅжϻîÈûÊÇ·ñÒƶ¯ºÜ¹Ø¼ü£®
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÊµÑéÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ¸ù¾ÝËٶȶ¨Òåʽv=$\frac{¡÷x}{¡÷t}$£¬µ±¡÷t¡ú0ʱ£¬$\frac{¡÷x}{¡÷t}$¾Í¿ÉÒÔ±íʾÎïÌåÔÚtʱ¿ÌµÄ˲ʱËٶȣ¬¸Ã¶¨ÒåÔËÓÃÁ˼«ÏÞ˼ά·¨ | |
B£® | µç³¡Ç¿¶ÈÊÇÓñÈÖµ·¨¶¨ÒåµÄ£¬Òò¶ø²»ÄÜ˵³Éµç³¡Ç¿¶ÈÓëµç³¡Á¦³ÉÕý±È£¬ÓëµçÁ¿³É·´±È | |
C£® | °Â˹ÌØÊÜ·¨ÀµÚ·¢ÏÖµçÁ÷µÄ´ÅЧӦµÄÆô·¢·¢ÏÖÁ˵ç´Å¸ÐÓ¦ÏÖÏó | |
D£® | ¿¨ÎĵÏÐíÔÚÀûÓÃŤ³ÓʵÑé×°ÖòâÁ¿ÍòÓÐÒýÁ¦³£Á¿Ê±£¬Ó¦ÓÃÁË·Å´ó·¨ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º¶àÑ¡Ìâ
A£® | ¡÷U£¼mgh | |
B£® | ¡÷U£¾mgh | |
C£® | ¼×ÆøÊÒÄÚÆøÌåζÈÉý¸ß£¬ÒÒÆøÊÒÄÚÆøÌåζȽµµÍ | |
D£® | ÒÒÆøÊÒÄÚÆøÌåÄÚÄܵļõСÁ¿µÈÓÚ¼×ÆøÊÒÄÚÆøÌåÄÚÄܵÄÔö¼ÓÁ¿ | |
E£® | ÒÒÆøÊÒÄÚÆøÌåÄÚÄܵļõСÁ¿Ð¡ÓÚ¼×ÆøÊÒÄÚÆøÌåÄÚÄܵÄÔö¼ÓÁ¿ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÎïÌåÂäµ½µØÃæÉÏ£¬ËµÃ÷µØÇò¶ÔÎïÌåµÄÒýÁ¦´óÓÚÎïÌå¶ÔµØÇòµÄÒýÁ¦ | |
B£® | F=G$\frac{{m}_{1}{m}_{2}}{{R}^{2}}$ÖеÄGÊDZÈÀý³£Êý£¬ÊÊÓÃÓÚÈκÎÁ½¸öÎïÌåÖ®¼ä£¬rÊÇm1¡¢m2ÖØÐļäµÄ¾àÀ룬µ±r¡ú0ʱ£¬m1¡¢m2Ö®¼äµÄÍòÓÐÒýÁ¦F¡ú¡Þ | |
C£® | ÈËÔìµØÇòÎÀÐǴӰ뾶½ÏСµÄÔ²¹ìµÀ±ä¹ìµ½°ë¾¶½Ï´óµÄÔ²¹ìµÀºó£¬ÎÀÐǵÄËٶȺͼÓËٶȶ¼±äС£¬ÎÀÐǵÄÖÜÆںͻúеÄܶ¼±ä´ó | |
D£® | 2010Ä꣬ÌìÎÄѧ¼ÒÊ״μûÖ¤ÐÐÐÇÍß½âËÀÍöµÄÈ«¹ý³Ì£¬ÓÉÍòÓÐÒýÁ¦µÄ֪ʶ¿ÉÒԵóö£ºÐÐÐÇÖ®ËùÒÔ»áÍß½âÖ÷ÒªÊÇÒòΪÐÐÐÇÈÆÖÐÐÄÌìÌåÔËÐеĹ«×ªËٶȹý´óËùÖ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ×öÇúÏßÔ˶¯µÄÎïÌ壮Êܵ½µÄºÏÍâÁ¦´óСһ¶¨±ä»¯ | |
B£® | ÔÚƽºâÁ¦×÷ÓÃϵÄÎïÌ壬¿ÉÒÔ×öÇúÏßÔ˶¯ | |
C£® | Ö»ÒªÎïÌå×öÔ²ÖÜÔ˶¯£¬ËüËùÊܵĺÏÍâÁ¦Ò»¶¨Ö¸ÏòÔ²ÐÄ | |
D£® | ×öÇúÏßÔ˶¯µÄÎïÌ壬Êܵ½µÄºÏÍâÁ¦·½Ïò¿ÉÄÜʼÖÕ±£³Ö²»±ä |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º¶àÑ¡Ìâ
A£® | ³õËÙ¶ÈСÓÚ$\sqrt{\frac{3}{2}gh}$ʱ£¬Ô˶¯Ê±¼äΪ¶¨Öµ | |
B£® | ³õËٶȴóÓÚ$\sqrt{\frac{3}{2}gh}$ʱ£¬Ô˶¯Ê±¼äΪ¶¨Öµ | |
C£® | ÎÞÂÛ³õËÙ¶ÈÈ¡ºÎÖµ£¬¦Á¡¢¦Â¾ùÂú×ã¦Â=2¦Á | |
D£® | ÎÞÂÛ³õËÙ¶ÈÈ¡ºÎÖµ£¬¦Á¡¢¦Â¾ùÂú×ãtan¦Â=2tan¦Á |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com