ÈçͼËùʾ£¬Ò»¸ùÖ±Á¢µÄµ¯»ÉÖ§³Ö×ÅÒ»¸öµ¹ÖõÄÆø¸×µÄ»îÈû£¬Ê¹Æø¸×Ðü¿Õ¶ø¾²Ö¹£®Éè»îÈûÔÚÆø¸×ÄÚ¿ÉÎÞĦ²ÁµØ»¬¶¯£¬Æø¸×±Úµ¼ÈÈÐÔÄÜÁ¼ºÃ£¬Ê¹·â±ÕÔÚ¸×ÄÚµÄÆøÌå×ÜÄÜÓëÍâ½ç´óÆøµÄζÈÏàͬ£¬Ôò

[¡¡¡¡]

A£®ÈôÍâ½ç´óÆøѹǿÔö´ó£¬Æø¸×Éϵ×ÃæÀëµØÃæµÄ¸ß¶È½«¼õС

B£®ÈôÍâ½ç´óÆøѹǿÔö´ó£¬µ¯»É³¤¶È½«Ëõ¶Ì

C£®ÈôÍâ½çÆøÎÂÉý¸ß£¬Æø¸×Éϵ×ÃæÀëµØÃæµÄ¸ß¶È½«Ôö´ó

D£®ÈôÍâ½çÆøÎÂÉý¸ß£¬µ¯»É³¤¶È½«Ëõ¶Ì

´ð°¸£ºAC
½âÎö£º

½âÎö£º¶ÔÆø¸×ºÍ»îÈûÕûÌ壬Êܵ¯»ÉµÄµ¯Á¦ºÍÖØÁ¦£¬ÓÐkx=(M£«m)g£¬¹ÊxΪһ¶¨Öµ£¬´Ó¶øÖªµ¯»É³¤¶ÈҲΪһ¶¨Öµ£®¶ÔÆø¸×±Ú£º£«Mg=pS£¬µ±±ä´ó£¬Ôòp±ä´ó£»¶ÔÆøÌ壬Óɲ£Òâ¶ú¶¨ÂÉpV=C£¬Òòp±ä´ó£¬¹ÊV¼õС£¬Æø¸×ÏÂÒÆ£¬¹ÊAÏîÕýÈ·£¬BDÏî²»ÕýÈ·£®µ±²»±äʱ£¬pÒ²²»±ä£¬Óɸǡ¤ÂÀÈø¿Ë¶¨ÂÉV/T=£¬µ±T±ä´ó£¬ÔòV±ä´ó£¬Æø¸×ÉÏÒÆ£¬¹ÊCÏîÕýÈ·£®


Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

I£®ÓйطÖ×Ó¼äÏ໥×÷ÓÃÁ¦µÄÀí½â£¬ÏÂÃ漸ÖÖ¹ÛµãÕýÈ·µÄÊÇ
A£®0¡æµÄ±ù±ä³É0¡æµÄË®£¬Ìå»ýÒª¼õС£¬±íÃ÷¸Ã¹ý³Ì·Ö×Ó¼äµÄ×÷ÓÃÁ¦ÎªÒýÁ¦
B£®0¡æµÄ±ù±ä³É0¡æµÄË®£¬Ìå»ýËä¼õС£¬µ«ÊǸùý³Ì·Ö×Ó¼äµÄ×÷ÓÃÁ¦Îª³âÁ¦
C£®¸ßѹÆøÌåµÄÌå»ýºÜÄѽøÒ»²½±»Ñ¹Ëõ£¬±íÃ÷¸ßѹÆøÌå·Ö×Ó¼äµÄ×÷ÓÃÁ¦Îª³âÁ¦
D£®ÒºÌåÄܹ»Á÷¶¯¶ø¹ÌÌå²»ÄÜ£¬ËµÃ÷ÒºÌå·Ö×Ó¼ä×÷ÓÃÁ¦Ð¡ÓÚ¹ÌÌå·Ö×Ó¼ä×÷ÓÃΪ
E£®¹ÌÌå·¢ÉúÐαäʱ²úÉúµÄµ¯Á¦£¬±¾ÖÊÉÏÊǹÌÌå´óÁ¿·Ö×Ó¼ä×÷ÓÃÁ¦µÄºê¹Û±íÏÖ
II£®ÈçͼËùʾ£¬Ò»¸ù³¤L=100cm¡¢Ò»¶Ë·â±ÕµÄϸ²£Á§¹Ü¿ª¿ÚÏòÉÏÊúÖ±·ÅÖ㬹ÜÄÚÓÃh=25cm³¤µÄË®ÒøÖù·â±ÕÁËÒ»¶Î³¤L1=30cmµÄ¿ÕÆøÖù£®ÒÑÖª´óÆøѹǿΪ75cmHg£¬²£Á§¹ÜÖÜΧ»·¾³Î¶ÈΪ27¡æÇó£º
£¨1£©Èô½«²£Á§¹Ü»ºÂýµ¹×ªÖÁ¿ª¿ÚÏòÏ£¬²£Á§¹ÜÖÐÆøÖù½«±ä³É¶à´ó£¿
£¨2£©Èô±£³Ö²£Á§¹Ü¿ª¿ÚÏòÏÂÖ±Á¢£¬»ºÂýÉý¸ß¹ÜÄÚÆøÌåζȣ¬µ±Î¶ÈÉý¸ßµ½¶àÉÙÉãÊ϶Èʱ£¬¹ÜÄÚË®Òø¿ªÊ¼Òç³ö£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬Ò»¸ù×ÔÖØΪ50NµÄľ¸ËÖ±Á¢ÓÚµØÃæÉÏ£¬Ä¾¸ËµÄÒ»²àÓÐÒ»ÓëµØÃæ³ÉÇã½Ç¦È=45¡ãµÄÀ­Ë÷OB½«¸ËÀ­×¡£¬ÁíÒ»²àÔòÓÐˮƽÏßOA£¬ÒÑÖªOAµÄÀ­Á¦´óСΪ30N£¬ÊÔÇó£º
£¨1£©ÒªÊ¹À­Ë÷²»±»À­¶Ï£¬ÔòÀ­Ë÷µÄ³ÐÊÜÄÜÁ¦ÖÁÉÙÊǶà´ó£¿
£¨2£©´Ëʱľ¸Ë¶ÔµØÃæµÄѹÁ¦Îª¶à´ó£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍø[ÎïÀí--Ñ¡ÐÞ3-3]
£¨1£©¶ÔÓÚ·Ö×Ó¼äͬʱ´æÔÚÒýÁ¦ºÍ³âÁ¦µÄÀí½â£¬ÕýÈ·µÄÊÇ
 
£®
A£®Ê¯¿éÄÑÓÚ±»À­É죬˵Ã÷¹ÌÌå·Ö×Ó¼äµÄÒýÁ¦×Ü´óÓÚ³âÁ¦
B£®Ë®¿ÉËæÒâÁ÷¶¯£¬ÊÇÒòΪҺÌå·Ö×Ó¼äÒýÁ¦ºÍ³âÁ¦¾ùΪÁã
C£®Ñ¹ËõÆø¸×ÖÐÆøÌåʱҪÓÃÁ¦£¬±íÃ÷ÆøÌå·Ö×Ó¼ä´æÔÚ³âÁ¦
D£®ÈκÎÎïÖÊ·Ö×Ó¼äÒýÁ¦ºÍ³âÁ¦¶¼»áËæ·Ö×Ó¼ä¾àÀëµÄÔö´ó¶ø¼õС£®
£¨2£©ÈçͼËùʾ£®Ò»¸ù³¤L=90cm¡¢Ò»¶Ë·â±ÕµÄϸ²£Á§¹Ü¿ª¿ÚÏòÉÏÊúÖ±·ÅÖ㬹ÜÄÚÓÃh=25cm³¤µÄË®ÒøÖù·â±ÕÁËÒ»¶Î³¤L1=50cmµÄ¿ÕÆøÖù£®ÒÑÖª´óÆøѹǿΪP0=75cmHg£¬²£Á§¹ÜÖÜΧ»·¾³Î¶ȱ£³Ö²»±ä£®
¢ÙÈô½«²£Á§¹Ü»ºÂýƽ·ÅÔÚˮƽ×ÀÃæÉÏ£¬Çó²£Á§¹ÜÖÐÆøÖù½«±äΪ¶à³¤£º
¢ÚÈô±£³Ö²£Á§¹ÜÖ±Á¢£¬¼ÌÐøÏò²£Á§¹ÜÖлºÂý×¢ÈëË®Òø£¬Ôò×î¶àÄÜ×¢Èë¶à³¤µÄË®ÒøÖù£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£ºÈýµãÒ»²â´ÔÊé¡¡¸ßÖÐÎïÀí¡¡±ØÐÞ2¡¡(È˽̰æ¿Î±ê±¾) È˽̰æ¿Î±ê±¾ ÌâÐÍ£º022

ÈçͼËùʾ£¬Ò»¸ù¾ùÔȵÄÖ±°ôƽ·ÅÔÚµØÃ棬½«ËüÊúÖ±Á¢ÆðʱOµã²»»¬¶¯£¬Èô°ôµÄÖÊÁ¿Îªm£¬°ô³¤ÎªL£¬Ôò°ô±»ÊúÖ±Á¢ÆðʱÍâÁ¦×ö¹¦ÖÁÉÙΪ_________£¬ÖØÁ¦×ö¹¦Îª_________£¬ÎïÌå¿Ë·þÖØÁ¦×öµÄ¹¦Îª_________£¬°ôµÄÖØÁ¦ÊÆÄÜÔö¼ÓÁË_________£¬ÍâÁ¦×÷ÓõãÔ½¿¿½üÓÒ¶ËʱÓõÄÁ¦_________£¬µ«×öµÄ¹¦_________£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸