ÌâÄ¿ÄÚÈÝ

13£®Èçͼ£¬¾²Ö¹Ê±UÐ͹ÜÁ½²àÒºÃæÏàÆ½£¬¹Ø¿Ú¶¼ÊÇÔ²ÐΣ¬×ó±ß¹Ü¿ÚÖ±¾¶ÊÇÓұ߹ܿڵÄÒ»°ë£¬h1¡¢h2·Ö±ðΪAºÍBµãÀëÒºÃæµÄÉî¶ÈÇÒh1=2h2£®

£¨1£©Í¼¼×AµãλÖõÄÒºÌåѹǿ£¾£¨Ñ¡Ìî¡°£¾¡±¡¢¡°=¡±¡¢¡°£¼¡±£©BµãλÖõÄÒºÌåѹǿ£®
£¨2£©ÈôÔÚ×ó¹Ü¿ÚÉ϶Ëˮƽ´µÆø£¬ÈçͼÒÒ£¬Ôò×ó¹ÜÒºÃæÉÏ·½µÄ´óÆøÑ¹Ç¿£¼£¨Ñ¡Ìî¡°£¾¡±¡¢¡°=¡±¡¢¡°£¼¡±£©ÓÒ¹ÜÒºÃæÉÏ·½µÄ´óÆøÑ¹Ç¿£¬×ó¹ÜÒºÃæ¸ß¶ÈϽµ£¨Ñ¡Ìî¡°ÉÏÉý¡±¡¢¡°²»±ä¡±¡¢¡°Ï½µ¡±£©£®
£¨3£©¿ÆÑ§¼ÒÅÁ˹¿¨·¢ÏÖ£¬µ±ÍâÁ¦×÷ÓÃÔÚÃܱյÄÒºÌåÉÏʱ£¬ÒºÌå¸÷²¿·ÖËùÊܵÄѹǿ½«·¢ÉúÏàͬµÄ±ä»¯£¬Õâ½ÐÅÁ˹¿¨¶¨ÂÉ£®Èçͼ±ûUÐιÜ×°ÂúÒºÌ壬Á½¶Ë»îÈû°ÑÒºÌåÃܱգ¬¸ø×ó¶Ë»îÈûÊ©¼ÓÒ»¸öÏòϵÄѹÁ¦F1ʱ£¬¸ù¾ÝÅÁ˹¿¨¶¨ÂÉ£¬×óÓÒÁ½¸ö»îÈûÊܵ½µÄÒºÌåѹǿÏàµÈƽp1=p2£®ÓÒ¶Ë»îÈû»áÊܵ½Ò»¸öÏòÉϵÄѹÁ¦F2£¬ÓÉÓÚÁ½¸ö»îÈûÃæ»ýÏàµÈ£¬¸ù¾Ý¹«Ê½F=PSÖªËüÃÇËùÊܵÄѹÁ¦ÏàµÈF1=F2£¬Õâ¾ÍÊÇҺѹ»úÔ­Àí£®
Èç¹û°Ñ¼×ͼµÄUÐιÜ×ö³ÉҺѹ»ú£¬¼´Á½¶Ë°²×°»îÈûʹҺÌåÃܱգ¬µ±¸ø×ó¶Ë»îÈûÊ©¼ÓѹÁ¦F1ʱ£¬ÓÒ¶Ë»îÈûÊܵ½ÒºÌåÏòÉÏѹÁ¦F2ÊÇF1µÄ4±¶£¨¼ÙÉèUÐιܹ»¼á¹Ì²»±äÐΣ¬ºöÂÔ»îÈûÓë¹Ü±ÚĦ²Á£¬Ô²Ãæ»ý¹«Ê½S=¦Ðr2£©

·ÖÎö £¨1£©ÒºÌåµÄÑ¹Ç¿ËæÉî¶ÈµÄÔö¼Ó¶øÔö¼Ó£»
£¨2£©Á÷ÌåѹǿÓëÁ÷ËٵĹØÏµ£ºËÙ¶ÈÔ½´óµÄµØ·½£¬Ñ¹Ç¿Ô½Ð¡£»
£¨3£©¼ÓÔÚÃܱÕÒºÌåÉϵÄѹǿ£¬Äܹ»´óС²»±äµØÓÉÒºÌåÏò¸÷¸ö·½Ïò´«µÝ£¬Õâ¾ÍÊÇÅÁ˹¿¨Ô­Àí£»ÈçͼËùʾ£¬¸ù¾Ýp1=p2ºÍѹǿ¹«Ê½¿ÉÒԵóöÔÚF1ºÍF2µÄ¹ØÏµ£®

½â´ð ½â£º£¨1£©ÒºÌåµÄÑ¹Ç¿ËæÉî¶ÈµÄÔö¼Ó¶øÔö¼Ó£¬ÒòΪAµãµÄÉî¶È´óÓÚBµãµÄÉî¶È£¬¹ÊAµãµÄѹǿ´óÓÚBµãµÄѹǿ£»
£¨2£©ÈôÔÚ×ó¹Ü¿ÚÉ϶Ëˮƽ´µÆø£¬×ó±ß¹Ü¿ÚµÄÆøÌå¿ÕÆøÁ÷ËÙ´ó£¬Ñ¹Ç¿Ð¡£¬ÒºÖùϽµ£»
£¨3£©¸ù¾ÝÅÁ˹¿¨¶¨ÂÉ£¬×óÓÒÁ½¸ö»îÈûÊܵ½µÄÒºÌåѹǿÏàµÈƽp1=p2£®ÓÒ¶Ë»îÈû»áÊܵ½Ò»¸öÏòÉϵÄѹÁ¦F2£¬ÓÉÓÚÁ½¸ö»îÈûÃæ»ýÏàµÈ£¬¸ù¾Ý¹«Ê½F=PSÖªËüÃÇËùÊܵÄѹÁ¦ÏàµÈF1=F2£»
Èç¹û°Ñ¼×ͼµÄUÐιÜ×ö³ÉҺѹ»ú£¬×ó±ß¹Ü¿ÚÖ±¾¶ÊÇÓұ߹ܿڵÄÒ»°ë£¬¸ù¾ÝÔ²Ãæ»ý¹«Ê½S=¦Ðr2Öª×ó±ß¹Ü¿ÚµÄÃæ»ýÊÇÓұ߹ܿÚÃæ»ýµÄ$\frac{1}{4}$£¬
¸ù¾ÝÅÁ˹¿¨Ô­Àíp1=p2=$\frac{F}{S}$£¬¼´Ñ¹Á¦ÓëÊÜÁ¦Ãæ»ý³É·´±È£¬¹Êµ±¸ø×ó¶Ë»îÈûÊ©¼ÓѹÁ¦F1ʱ£¬ÓÒ¶Ë»îÈûÊܵ½ÒºÌåÏòÉÏѹÁ¦F2ÊÇF1µÄ4±¶£®
¹Ê´ð°¸Îª£º£¨1£©£¾£»£¨2£©£¼£»Ï½µ£»£¨3£©F=PS£»4£®

µãÆÀ ±¾Ì⿼²éÁËѧÉú¶ÔÒºÌåѹǿµÄ¹¦ÂÊ¡¢Á÷ÌåѹǿÓëÁ÷ËٵĹØÏµ¡¢ÅÁ˹¿¨Ô­ÀíµÄÕÆÎÕºÍÔËÓ㬿ÉÒÔ½èÖú¡°Ð¡Ãæ»ýСÁ¦¡¢´óÃæ»ý´óÁ¦¡±¼ÇÒ䣬·ÀÖ¹Òòµßµ¹³ö´í£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø