ÏÖ´úÉú»îÖÐ×îÖØÒªµÄ½»Í¨ÔËÊ乤¾ß¡ª¡ªÆû³µ£¬ÓëÎÒÃǵÄÉú»î×ßµÃÔ½À´Ô½½üÁË¡£ 

(1)ijµ¥¸×ÆûÓÍ·¢¶¯»úÆø¸×µÄ»îÈûÃæ»ýÊÇ120cm2£¬×ö¹¦³å³ÌÖлîÈûÒƶ¯µÄ¾àÀëÊÇ30cm£¬ÆøÌåµÄƽ¾ùѹǿÊÇ5¡Á105Pa¡£ÆûÓ͵ÄÈÈÖµÊÇ4.6¡Á107J£¯kg£¬Ã¿´Î×ö¹¦ºÄÓÍ0.2g£¬ÆøÌåÒ»´ÎÅòÕͶԻîÈû×öµÄ¹¦ÊÇ______J£»Èôÿ´Î×ö¹¦¹ý³ÌÖÐÆûÓ͵Ä90£¥ÍêȫȼÉÕ£¬Ã¿´ÎÆûÓÍȼÉշųöµÄÈÈÁ¿ÊÇ__________J£»ÅÅÆø¹ý³ÌÖУ¬·ÏÆøζÈ________£¬ÄÚÄÜ________¡£

(2) ÆûÓ͵ÄÈÈÖµ4.6¡Á107J£¯kgº¬Ò壺_______________________________(2·Ö)

(3)ÆûÓÍ»úµÄЧÂʺܵͣ¬Ö÷ÒªÔ­ÒòÖ®Ò»ÊÇ______´ø×ßÁË´óÁ¿µÄÄÜÁ¿¡£

 

¡¾´ð°¸¡¿

£¨1£©1800 £»8.28¡Á103     ½µµÍ  £»¼õÉÙ£» £¨2£©±íʾ1kgÆûÓÍÍêȫȼÉշųöµÄÈÈÁ¿Îª4.6¡Á107J £»£¨3£©Î²Æø.

¡¾½âÎö¡¿

ÊÔÌâ·ÖÎö£º¸ù¾ÝÆûÓÍ»úµÄ¹¤×÷¹ý³ÌÓУ¬

£¨1£©ÆøÌåÒ»´ÎÅòÕͶԻîÈûËù×öµÄ¹¦ÎªW£½FL£½PSL£½5¡Á105Pa¡Á120¡Á10 4m2¡Á0.3m£½1800J £»

ÿ´ÎÆûÓÍȼÉշųöµÄÈÈÁ¿Q£½mq=0.9¡Á0.2¡Á10 3kg¡Á4.6¡Á107J£¯kg= 8.28¡Á103 J;ÅÅÆø¹ý³ÌÖУ¬·ÏÆøÓÉÓÚ¶ÔÍâ×ö¹¦£¬ÄÚÄܼõÉÙ£¬Î¶ȽµµÍ£»

£¨2£©ÈÈÖµÊÇÖ¸1kgijÖÖȼÁÏÍêȫȼÉÕʱ·Å³öÈÈÁ¿µÄ¶àÉÙ£¬Òò´ËÆûÓ͵ÄÈÈÖµ±íʾ1kgÆûÓÍÍêȫȼÉշųöµÄÈÈÁ¿Îª4.6¡Á107J£»

£¨3£©ÔÚÅÅÆø³å³ÌÖУ¬Î²ÆøµÄÄÚÄÜ»¹ºÜ´ó£¬µ«ÊDZ»Åųö£¬Ã»Óб»ÀûÓõ½£¬Òò´ËÆûÓÍ»úµÄЧÂʺܵͣ¬Ö÷ÒªÔ­ÒòÖ®Ò»¾ÍÊÇ·ÏÆø´ø×ßÁ˴󲿷ÝÄÜÁ¿¡£

¿¼µã£ºÄÚȼ»úµÄ¹¤×÷¹ý³Ì¡¢¹¦µÄ¼ÆË㡢ȼÁϵÄÈÈÖµÓë¼ÆËã¡¢ÈÈ»úЧÂÊ

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÏÖ´úÉú»îÖÐ×îÖØÒªµÄ½»Í¨ÔËÊ乤¾ß--Æû³µ£¬ÓëÎÒÃǵÄÉú»î×ßµÃÔ½À´Ô½½üÁË£®
£¨1£©Ä³µ¥¸×ÆûÓÍ·¢¶¯»úÆø¸×µÄ»îÈûÃæ»ýÊÇ120cm2£¬×ö¹¦³å³ÌÖлîÈûÒƶ¯µÄ¾àÀëÊÇ30cm£¬ÆøÌåµÄƽ¾ùѹǿÊÇ5¡Á105Pa£®ÆûÓ͵ÄÈÈÖµÊÇ4.6¡Á107J/kg£¬Ã¿´Î×ö¹¦ºÄÓÍ0.2g£¬ÆøÌåÒ»´ÎÅòÕͶԻîÈû×öµÄ¹¦ÊÇ
 
J£»Èôÿ´Î×ö¹¦¹ý³ÌÖÐÆûÓ͵Ä90%ÍêȫȼÉÕ£¬Ã¿´ÎÆûÓÍȼÉշųöµÄÈÈÁ¿ÊÇ
 
J£»ÅÅÆø¹ý³ÌÖУ¬·ÏÆøζÈ
 
£¬ÄÚÄÜ
 
£®
£¨2£©ÆûÓÍ»úµÄЧÂʺܵͣ¬Ö÷ÒªÔ­ÒòÖ®Ò»ÊÇ
 
´ø×ßÁË´óÁ¿µÄÄÜÁ¿£®µç¶¯Æû³µÊÇδÀ´Æû³µµÄ·¢Õ¹·½Ïò£¬ËüµÄ·¢¶¯»úÊÇÀûÓÃ
 
Ô­ÀíÖƳɵģ®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÏÖ´úÉú»îÖÐ×îÖØÒªµÄ½»Í¨ÔËÊ乤¾ß--Æû³µ£¬ÓëÎÒÃǵÄÉú»î×ßµÃÔ½À´Ô½½üÁË£®
£¨1£©Ä³µ¥¸×ÆûÓÍ·¢¶¯»úÆø¸×µÄ»îÈûÃæ»ýÊÇ120cm2£¬×ö¹¦³å³ÌÖлîÈûÒƶ¯µÄ¾àÀëÊÇ30cm£¬ÆøÌåµÄƽ¾ùѹǿÊÇ5¡Á105Pa£®ÆûÓ͵ÄÈÈÖµÊÇ4.6¡Á107J/kg£¬Ã¿´Î×ö¹¦ºÄÓÍ0.2g£¬ÆøÌåÒ»´ÎÅòÕͶԻîÈû×öµÄ¹¦ÊÇ
1800
1800
J£»Èôÿ´Î×ö¹¦¹ý³ÌÖÐÆûÓ͵Ä90%ÍêȫȼÉÕ£¬Ã¿´ÎÆûÓÍȼÉշųöµÄÈÈÁ¿ÊÇ
8.28¡Á103
8.28¡Á103
J£»ÅÅÆø¹ý³ÌÖУ¬·ÏÆøζÈ
½µµÍ
½µµÍ
£¬ÄÚÄÜ
¼õÉÙ
¼õÉÙ
£®
£¨2£©ÆûÓ͵ÄÈÈÖµ4.6¡Á107J/kgº¬Ò壺
1kgÆûÓÍÍêȫȼÉշųöµÄÈÈÁ¿Îª4.6¡Á107J
1kgÆûÓÍÍêȫȼÉշųöµÄÈÈÁ¿Îª4.6¡Á107J

£¨3£©ÆûÓÍ»úµÄЧÂʺܵͣ¬Ö÷ÒªÔ­ÒòÖ®Ò»ÊÇ
βÆø
βÆø
´ø×ßÁË´óÁ¿µÄÄÜÁ¿£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÏÖ´úÉú»îÖÐ×îÖØÒªµÄ½»Í¨ÔËÊ乤¾ß--Æû³µ£¬ÓëÎÒÃǵÄÉú»î×ßµÃÔ½À´Ô½½üÁË£®
£¨1£©ÆûÓÍ»ú¹¤×÷ʱ½«ÄÚÄÜת»¯Îª»úеÄܵÄÊÇ
 
£¨ÎüÆø/ѹËõ/×ö¹¦/ÅÅÆø£©³å³Ì£®
£¨2£©Ä³µ¥¸×ÆûÓÍ·¢¶¯»úÆø¸×µÄ»îÈûÃæ»ýÊÇ120cm2£¬×ö¹¦³å³ÌÖлîÈûÒƶ¯µÄ¾àÀëÊÇ30cm£¬È¼ÆøµÄƽ¾ùѹǿÊÇ5¡Á105Pa£¬È¼ÆøÒ»´ÎÅòÕͶԻîÈû×öµÄ¹¦ÊÇ
 
J£®È¼ÆøÔÚÅòÕ͹ý³ÌÖУ¬ËüµÄ
 
ÄÜת»¯Îª»îÈûµÄ
 
ÄÜ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÏÖ´úÉú»îÖÐ×îÖØÒªµÄ½»Í¨ÔËÊ乤¾ß--Æû³µ£¬ÓëÎÒÃǵÄÉú»î×ßµÃÔ½À´Ô½½üÁË£®Ä³µ¥¸×ÆûÓÍ·¢¶¯»úÆø¸×µÄ»îÈûÃæ»ýÊÇ120cm2£¬×ö¹¦³å³ÌÖлîÈûÒƶ¯µÄ¾àÀëÊÇ30cm£¬ÆøÌåµÄƽ¾ùѹǿÊÇ5¡Á105Pa£®ÆûÓ͵ÄÈÈÖµÊÇ4.6¡Á107J/kg£¬Ã¿´Î×ö¹¦ºÄÓÍ0.2g£¬ÆøÌåÒ»´ÎÅòÕͶԻîÈû×öµÄ¹¦ÊÇ
 
J£»Èôÿ´Î×ö¹¦¹ý³ÌÖÐÆûÓ͵Ä90%ÍêȫȼÉÕ£¬Ã¿´ÎÆûÓÍȼÉշųöµÄÈÈÁ¿ÊÇ
 
J£»ÅÅÆø¹ý³ÌÖУ¬·ÏÆøζÈ
 
£¬ÄÚÄÜ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸