ÈÕ±¾º£Ð¥·¢Éúºó£¬ÎÒ¹úÖ¾Ô¸ÕßÔÚË®ÏÂËÑÑ°´òÀ̱»º£À˾í×ßµÄÎïÆ·£¬Ä³Ç±Ë®Ô±Éí´©Ç±Ë®·þ£¬±³×ÅÑõÆøÆ¿ºÍǦÖÆÅäÖØDZÈëË®ÖУ®Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×·¢ÏÖÁËÒ»¿éÓÐÈ˹¤µñ¿ÌºÛ¼£µÄʯ°å£¬ÎªÁ˽«ËüËÍÉÏ°¶¹©×¨¼ÒÑо¿£¬Ç±Ë®Ô±ÓÃÉþµÄÒ»¶Ë½«Ê¯°åϵÀΣ¬ÁíÒ»¶ËË©ÉÏËæÉíЯ´øµÄÆøÄÒ£¬ÔÚ³äÆøºóµÄÆøÄÒ×÷ÓÃÏ£¬Õâ¿éÖØÁ¦Îª1000N¡¢Ìå»ýΪ0.04m3µÄʯ°å»º»ºÀ뿪º£µ×£¬Éϸ¡ÖÁË®Ã森Çë»Ø´ð£º
£¨1£©Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×Êܵ½º£Ë®µÄѹǿ¶à´ó£¿£¨º£Ë®µÄÃܶÈÈ¡1.0¡Á10kg/m3£©
£¨2£©ÔÚÆøÄÒ½«Ê¯°åµõÆðÖÁ¶³öË®Ãæ֮ǰµÄ¹ý³ÌÖУ¬ÉþµÄÀ­Á¦ÖÁÉÙӦΪ¶à´ó£¿
£¨3£©ÔÚÎÞÍâ½ç°ïÖúµÄÇé¿öÏ£¬Ç±Ë®Ô±Òª´ÓË®µ×Éϸ¡µ½Ë®Ã棬¿É²ÉÈ¡ÄÄЩ¿ÉÐеķ½·¨£¿
£¨4£©³ýÓÃÆøÄÒ´òÀÌÍ⣬Ä㻹Á˽âÄÄÖÖ´òÀÌ·½·¨£¬Çë˵³öÀ´£®

£¨1£©Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×Êܵ½º£Ë®µÄѹǿΪ
P=¦Ñgh=1¡Á103kg/m3¡Á9.8N/kg¡Á10m=9.8¡Á105Pa£®
´ð£ºÇ±Ë®Ô±ÔÚ10mÉîµÄº£µ×Êܵ½º£Ë®µÄѹǿ9.8¡Á105Pa£®
£¨2£©Ê¯°åÊܵ½µÄ¸¡Á¦Îª
F¸¡=¦ÑË®gV=1.0¡Á103kg/m3¡Á9.8N/kg¡Á0.04m3=392N 
Éþ×Ó¶Ôʯ°åµÄÀ­Á¦Îª
F=G-F¸¡=1000N-392N=608N£»
´ð£ºÉþ×Ó¶Ôʯ°åµÄÀ­Á¦Îª608N£®
£¨3£©Ç±Ë®Ô±ÒªÉϸ¡£¬ÔÚ¸¡Á¦Ò»¶¨µÄÇé¿öÏ£¬¿ÉÒÔ¼õÇáÅäÖØ£»ÔÚÖØÁ¦Ò»¶¨µÄÇé¿öÏ£¬¿ÉÒÔ¼ÌÐøÏòÆøÄÒ³äÆø£¬Ôö´óÊܵ½µÄ¸¡Á¦£»
£¨4£©³ýÓÃÆøÄÒ´òÀÌÍ⣬»¹Óи¡Í²´òÀ̵ȣ®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2011?³²ºþÄ£Ä⣩ÈÕ±¾·¢Éúº£Ð¥ºó£¬ÎÒ¹úÕþ¸®Ê®·ÖÖØÊÓ£¬ÎÒ¹ú¿Æ¼¼¹¤×÷×éµÄÈËÔ±²âµÃµ±Ìì2ʱºÍ20ʱº£Ë®Î¶ȣ¬ÈçͼËùʾ£¬¹¤×÷ÈËÔ±·¢ÏÖ20ʱÉø©µÄÓͱÈ2ʱ¶àµÃ¶à£¬Èô²»¿¼ÂǸÖÆ¿½á¹¹¼°Ë®Á÷µÄ±ä»¯£¬Õâ˵Ã÷ÁË
ζÈÔ½¸ß£¬·Ö×ÓÔ˶¯Ô½¾çÁÒ
ζÈÔ½¸ß£¬·Ö×ÓÔ˶¯Ô½¾çÁÒ
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2011?³²ºþÄ£Ä⣩ÈÕ±¾º£Ð¥·¢Éúºó£¬ÎÒ¹úÖ¾Ô¸ÕßÔÚË®ÏÂËÑÑ°´òÀ̱»º£À˾í×ßµÄÎïÆ·£¬Ä³Ç±Ë®Ô±Éí´©Ç±Ë®·þ£¬±³×ÅÑõÆøÆ¿ºÍǦÖÆÅäÖØDZÈëË®ÖУ®Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×·¢ÏÖÁËÒ»¿éÓÐÈ˹¤µñ¿ÌºÛ¼£µÄʯ°å£¬ÎªÁ˽«ËüËÍÉÏ°¶¹©×¨¼ÒÑо¿£¬Ç±Ë®Ô±ÓÃÉþµÄÒ»¶Ë½«Ê¯°åϵÀΣ¬ÁíÒ»¶ËË©ÉÏËæÉíЯ´øµÄÆøÄÒ£¬ÔÚ³äÆøºóµÄÆøÄÒ×÷ÓÃÏ£¬Õâ¿éÖØÁ¦Îª1000N¡¢Ìå»ýΪ0.04m3µÄʯ°å»º»ºÀ뿪º£µ×£¬Éϸ¡ÖÁË®Ã森Çë»Ø´ð£º
£¨1£©Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×Êܵ½º£Ë®µÄѹǿ¶à´ó£¿£¨º£Ë®µÄÃܶÈÈ¡1.0¡Á10kg/m3£©
£¨2£©ÔÚÆøÄÒ½«Ê¯°åµõÆðÖÁ¶³öË®Ãæ֮ǰµÄ¹ý³ÌÖУ¬ÉþµÄÀ­Á¦ÖÁÉÙӦΪ¶à´ó£¿
£¨3£©ÔÚÎÞÍâ½ç°ïÖúµÄÇé¿öÏ£¬Ç±Ë®Ô±Òª´ÓË®µ×Éϸ¡µ½Ë®Ã棬¿É²ÉÈ¡ÄÄЩ¿ÉÐеķ½·¨£¿
£¨4£©³ýÓÃÆøÄÒ´òÀÌÍ⣬Ä㻹Á˽âÄÄÖÖ´òÀÌ·½·¨£¬Çë˵³öÀ´£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º½â´ðÌâ

ÈÕ±¾º£Ð¥·¢Éúºó£¬ÎÒ¹úÖ¾Ô¸ÕßÔÚË®ÏÂËÑÑ°´òÀ̱»º£À˾í×ßµÄÎïÆ·£¬Ä³Ç±Ë®Ô±Éí´©Ç±Ë®·þ£¬±³×ÅÑõÆøÆ¿ºÍǦÖÆÅäÖØDZÈëË®ÖУ®Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×·¢ÏÖÁËÒ»¿éÓÐÈ˹¤µñ¿ÌºÛ¼£µÄʯ°å£¬ÎªÁ˽«ËüËÍÉÏ°¶¹©×¨¼ÒÑо¿£¬Ç±Ë®Ô±ÓÃÉþµÄÒ»¶Ë½«Ê¯°åϵÀΣ¬ÁíÒ»¶ËË©ÉÏËæÉíЯ´øµÄÆøÄÒ£¬ÔÚ³äÆøºóµÄÆøÄÒ×÷ÓÃÏ£¬Õâ¿éÖØÁ¦Îª1000N¡¢Ìå»ýΪ0.04m3µÄʯ°å»º»ºÀ뿪º£µ×£¬Éϸ¡ÖÁË®Ã森Çë»Ø´ð£º
£¨1£©Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×Êܵ½º£Ë®µÄѹǿ¶à´ó£¿£¨º£Ë®µÄÃܶÈÈ¡1.0¡Á10kg/m3£©
£¨2£©ÔÚÆøÄÒ½«Ê¯°åµõÆðÖÁ¶³öË®Ãæ֮ǰµÄ¹ý³ÌÖУ¬ÉþµÄÀ­Á¦ÖÁÉÙӦΪ¶à´ó£¿
£¨3£©ÔÚÎÞÍâ½ç°ïÖúµÄÇé¿öÏ£¬Ç±Ë®Ô±Òª´ÓË®µ×Éϸ¡µ½Ë®Ã棬¿É²ÉÈ¡ÄÄЩ¿ÉÐеķ½·¨£¿
£¨4£©³ýÓÃÆøÄÒ´òÀÌÍ⣬Ä㻹Á˽âÄÄÖÖ´òÀÌ·½·¨£¬Çë˵³öÀ´£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º2011Äê°²»ÕÊ¡³²ºþÊÐÖп¼ÎïÀíÄ£ÄâÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ÈÕ±¾º£Ð¥·¢Éúºó£¬ÎÒ¹úÖ¾Ô¸ÕßÔÚË®ÏÂËÑÑ°´òÀ̱»º£À˾í×ßµÄÎïÆ·£¬Ä³Ç±Ë®Ô±Éí´©Ç±Ë®·þ£¬±³×ÅÑõÆøÆ¿ºÍǦÖÆÅäÖØDZÈëË®ÖУ®Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×·¢ÏÖÁËÒ»¿éÓÐÈ˹¤µñ¿ÌºÛ¼£µÄʯ°å£¬ÎªÁ˽«ËüËÍÉÏ°¶¹©×¨¼ÒÑо¿£¬Ç±Ë®Ô±ÓÃÉþµÄÒ»¶Ë½«Ê¯°åϵÀΣ¬ÁíÒ»¶ËË©ÉÏËæÉíЯ´øµÄÆøÄÒ£¬ÔÚ³äÆøºóµÄÆøÄÒ×÷ÓÃÏ£¬Õâ¿éÖØÁ¦Îª1000N¡¢Ìå»ýΪ0.04m3µÄʯ°å»º»ºÀ뿪º£µ×£¬Éϸ¡ÖÁË®Ã森Çë»Ø´ð£º
£¨1£©Ç±Ë®Ô±ÔÚ10mÉîµÄº£µ×Êܵ½º£Ë®µÄѹǿ¶à´ó£¿£¨º£Ë®µÄÃܶÈÈ¡1.0×10kg/m3£©
£¨2£©ÔÚÆøÄÒ½«Ê¯°åµõÆðÖÁ¶³öË®Ãæ֮ǰµÄ¹ý³ÌÖУ¬ÉþµÄÀ­Á¦ÖÁÉÙӦΪ¶à´ó£¿
£¨3£©ÔÚÎÞÍâ½ç°ïÖúµÄÇé¿öÏ£¬Ç±Ë®Ô±Òª´ÓË®µ×Éϸ¡µ½Ë®Ã棬¿É²ÉÈ¡ÄÄЩ¿ÉÐеķ½·¨£¿
£¨4£©³ýÓÃÆøÄÒ´òÀÌÍ⣬Ä㻹Á˽âÄÄÖÖ´òÀÌ·½·¨£¬Çë˵³öÀ´£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸