£¨2007?¼ÃÄÏ£©Ð¡»ª¹Û²ìµ½´Ó¿Î×ÀÉÏ»¬ÂäµÄÏðƤºÍֽƬµÈÏÂÂäµ½µØÃæµÄʱ¼ä²»Í¬£¬¡°ÎïÌåÔÚ¿ÕÆøÖÐÓɾ²Ö¹¿ªÊ¼ÏÂÂ䣬Âäµ½µØÃæµÄʱ¼äÓëÄÄЩÒòËØÓйØÄØ£¿¡±£¬Ð¡»ª²ÂÏë¿ÉÄÜÓëÎïÌåÔÚÏÂÂä·½ÏòÉϺͿÕÆø½Ó´¥Ãæ»ýµÄ´óС¡¢ÎïÌåÏÂÂäµÄ¸ß¶È¼°ÎïÌåµÄÖÊÁ¿Óйأ®ÎªÁËÑéÖ¤×Ô¼ºµÄ²ÂÏ룬С»ªÉè¼ÆÖÆ×÷ÁËÁ½¸öֽ׶£®ÈçͼËùʾ£¬ÔÚÒ»ÕŸ´Ó¡Ö½ÉÏÈ¡ÏÂÒ»¸ö Ô²£¬Î§³ÉÒ»¸öԲ׶£¬½»½ç´¦ÓýºË®Õ³ÀΣ¬ÖƳÉÒ»¸ö´óֽ׶A£¬½«¸´Ó¡Ö½Ê£ÓàµÄ²¿·ÖÈà³ÉÖ½ÍÅC£»È¡Í¬Ò»¹æ¸ñµÄÒ»ÕŸ´Ó¡Ö½£¬°´Í¬ÑùµÄ·½·¨ÖƳÉÒ»¸öСֽ׶B£¬Ê£ÓàµÄ²¿·ÖÈà³ÉÖ½ÍÅD£®ÔÚÍê³ÉÁËÁ½¸öֽ׶¼°Ö½ÍŵÄÖÆ×÷ºó£¬Ð¡»ª½øÐÐÁËÈçͼËùʾµÄʵÑ飬Êý¾Ý¼Ç¼ÈçÏÂ±í£®
ʵÑéÐòºÅ ֽ׶ ÏÂÂä¸ß¶Èh/m ֽ׶ÄÚµÄÖ½ÍÅÇé¿ö ÏÂÂäʱ¼ät/s
1 A 8.32 Ö½ÍÅC·ÅÈë 6.2
2 A 5.55 Ö½ÍÅC·ÅÈë 4.5
3 B 5.55 Ö½ÍÅD·ÅÈë 2.0
4 B 5.55 Ö½ÍÅδ·ÅÈë 3.1
£¨1£©ÔÚС»ªµÄʵÑé̽¾¿ÖУ¬ËùÐèµÄÆ÷²Ä³ýÁ˸´Ó¡Ö½¡¢½ºË®¡¢Æ¤¾í³ß¡¢Á¿½ÇÆ÷¡¢Ô²¹æÍ⣬»¹±ØÐèÒªÓõ½µÄÒ»¸öÆ÷²ÄÊÇ
Ãë±í
Ãë±í
£®
£¨2£©±È½Ï±íÖÐÐòºÅΪ
2
2
¡¢
3
3
µÄÁ½×éÊý¾Ý¿ÉÖª£¬Ö½×¶ÏÂÂäµÄʱ¼äÓëֽ׶ÔÚÏÂÂä·½ÏòÉϺͿÕÆø½Ó´¥Ãæ»ýµÄ´óСÓйأ®
£¨3£©±È½Ï±íÖÐÐòºÅΪ3¡¢4µÄÁ½×éÊý¾Ý¿ÉÖª£¬Ö½×¶ÏÂÂäµÄʱ¼äÓë
ÖÊÁ¿
ÖÊÁ¿
Óйأ®
£¨4£©ÊµÑéÖÐС»ªÔÚѧУ½Ìѧ¥´óÌüÄÚÊÍ·Åֽ׶£¬ÕâÑù¾Í±ÜÃâÁË·çµÄÓ°Ï죻ÁíÍâËû»¹¾¡¿ÉÄܵØÌá¸ßÊͷŸ߶ȣ¬ÕâÑù×öµÄÄ¿µÄÊÇ
Ôö´óÏÂÂäʱ¼ä£¬±ãÓÚʱ¼äµÄ²âÁ¿£¬¼õСÎó²î
Ôö´óÏÂÂäʱ¼ä£¬±ãÓÚʱ¼äµÄ²âÁ¿£¬¼õСÎó²î
£®
·ÖÎö£º£¨1£©Òª±È½ÏÎïÌåµÄÔ˶¯¿ìÂý¿ÉÒÔÓÿ̶ȳ߲â³öͨ¹ýµÄ¾àÀë¡¢ÀûÓÃÃë±í²â³öÔ˶¯µÄʱ¼ä£¬¸ù¾ÝËٶȹ«Ê½Çó³öËüÃÇËٶȵĴóС£¬ÔÚ½øÐбȽϣ®
£¨2£©¸ù¾Ý¿ØÖƱäÁ¿·¨¿ÉÖª£¬ÒªÌ½¾¿Ö½×¶ÏÂÂäµÄʱ¼äÓëֽ׶ÔÚÏÂÂä·½ÏòÉϺͿÕÆø½Ó´¥Ãæ»ýµÄ´óСÓйØʱ£¬Ó¦¿ØÖÆÆäËûÁ½¸öÒòËز»±ä£®
£¨3£©±È½Ï±íÖÐÐòºÅΪ3¡¢4µÄÁ½×éÊý¾ÝÖÐÏàͬµÄÁ¿ºÍ²»Í¬µÄÁ¿£¬¸ù¾Ý¿ØÖƱäÁ¿·¨µÃ³ö½áÂÛ£®
£¨4£©Èç¹ûÏÂÂäµÄ¸ß¶È¹ýµÍ£¬»áʹ²âÁ¿³öµÄʱ¼äÎó²î½Ï´ó£¬ÇÒ²»±ãÓÚ²âÁ¿£®
½â´ð£º½â£º£¨1£©ÊµÑéÖУ¬Óÿ̶ȳ߲â³öͨ¹ýµÄ¾àÀë¡¢Ãë±í²â³öÔ˶¯µÄʱ¼ä£¬¸ù¾Ýv=
s
t
Çó³öËüÃÇËٶȵĴóСÀ´±È½ÏËüÃÇÔ˶¯µÄ¿ìÂý£®
£¨2£©ÎïÌåÂäµ½µØÃæµÄʱ¼ä¿ÉÄÜÓëÎïÌåÔÚÏÂÂä·½ÏòÉϺͿÕÆø½Ó´¥Ãæ»ýµÄ´óС¡¢ÎïÌåÏÂÂäµÄ¸ß¶È¼°ÎïÌåµÄÖÊÁ¿Óйأ»
¸ù¾Ý¿ØÖƱäÁ¿·¨¿ÉÖª£ºÒªÌ½¾¿Ö½×¶ÏÂÂäµÄʱ¼äÓëֽ׶ÔÚÏÂÂä·½ÏòÉϺͿÕÆø½Ó´¥Ãæ»ýµÄ´óСÓйأ¬Ó¦¿ØÖÆÎïÌåÏÂÂäµÄ¸ß¶È¼°ÎïÌåµÄÖÊÁ¿²»±ä£¬Êý¾ÝÖÐ2¡¢3·ûºÏ£®
£¨3£©ÓÉ3¡¢4µÄÁ½×éÊý¾Ý¿ÉÖª£¬ËüÃǵÄֽ׶ÏÂÂäµÄ¸ß¶È¡¢¿ÕÆø½Ó´¥Ãæ»ýµÄ´óСÏàͬ£¬Ö½×¶µÄÖÊÁ¿²»Í¬£¬ÏÂÂäµÄʱ¼ä²»Í¬£¬¹Ê¿ÉµÃ½áÂÛ£ºÖ½×¶ÏÂÂäµÄʱ¼äÓëÖÊÁ¿Óйأ®
£¨4£©¾¡¿ÉÄܵØÌá¸ßÊͷŸ߶ȣ¬ÕâÑù×öµÄÄ¿µÄÊÇÔö´óÏÂÂäʱ¼ä£¬±ãÓÚʱ¼äµÄ²âÁ¿£¬¼õСÎó²î£®
¹Ê´ð°¸Îª£º£¨1£©Ãë±í£»
£¨2£©2¡¢3£»
£¨3£©ÎïÌåµÄÖÊÁ¿£»
£¨4£©Ôö´óÏÂÂäʱ¼ä£¬±ãÓÚʱ¼äµÄ²âÁ¿£¬¼õСÎó²î£®
µãÆÀ£º¶ÔÓÚ´ËÀàʵ¼ÊÎÊÌ⣬Ҫ½áºÏ¿ØÖƱäÁ¿·¨½øÐзÖÎö½â´ð£¬ÖªµÀÓ¦¸Ã¿ØÖÆÄÄЩÒòËز»±ä£¬¸Ä±äÄÄЩÒòËØ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2007?¼ÃÄÏ£©ÈçͼËùʾµÄÊÇijÖÖ¹âµç¼ÆÊýÆ÷µÄÔ­ÀíʾÒâͼ£¬µçÔ´µçѹ±£³Ö²»±ä£¬ÆäÖÐR1Ϊ¿É±äµç×裬Æäµç×èÖµËæ׏âÕÕÁÁ¶ÈµÄÔö´ó¶ø¼õС£¬R2Ϊ¶¨Öµµç×裬A¡¢BÁ½µã¼ä½ÓÉÏÐźŴ¦Àíϵͳ£¬µ±´¦Àíϵͳÿ»ñµÃÒ»´Î¸ßµçѹʱ¾Í¼ÆÊýÒ»´Î£®ÏÂÁйØÓÚ¹âµç¼ÆÊýÆ÷µÄ·ÖÎöÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2007?¼ÃÄÏ£©Ð¡»ªÍ¬Ñ§Óõç³Ø×飨µçѹΪ3V£©¡¢µçѹ±í¡¢µçÁ÷±íºÍ»¬¶¯±ä×èÆ÷µÈʵÑéÆ÷²Ä£¬²âÁ¿±êÓС°2.5V¡±×ÖÑùСµÆÅݵĵ繦ÂÊ£®
£¨1£©Èçͼ¼×ËùʾÊÇС»ªÁ¬½ÓµÄʵÎïÁ¬½Óͼ£¬ÆäÖÐÓÐÒ»´¦Á¬½Ó´íÎó£¬ÇëÔÚ´íÎóÁ¬ÏßÉÏ´ò¡°¡Á¡±£¬²¢Óñʻ­ÏßÌæ´úµ¼Ïß»­ÉÏÕýÈ·µÄÁ¬Ïߣ®

£¨2£©µç·´íÎó¸ÄÕýºó£¬Ð¡»ª±ÕºÏ¿ª¹ØS£¬·¢ÏÖСµÆÅÝL ²»·¢¹â£¬µçÁ÷±íʾÊýΪÁ㣬µ«µçѹ±íÓÐʾÊý£¬ÈçͼÒÒËùʾ£®µç·ÖгöÏֵĹÊÕÏ¿ÉÄÜÊÇ
µÆÅݶÏ·
µÆÅݶÏ·
£®
ʵÑéÐòºÅ 1 2 3 4 5 6
СµÆÅÝÁ½¶ËµÄµçѹU/V 0.5 1.0 1.5 2.0 2.5 2.8
ͨ¹ýСµÆÅݵĵçÁ÷I/A 0.08 0.10 0.14 0.18 0.20 0.22
СµÆÅÝÏûºÄµÄ¹¦ÂÊP/W
СµÆÅݵķ¢¹âÁÁ¶È ²»·¢¹â ºÜ°µ ½Ï°µ ½ÏÁÁ Õý³£·¢¹â ºÜÁÁ
£¨3£©Åųý¹ÊÕϺó£¬Ð¡»ª½øÐÐÁËʵÑ飬µÃµ½Ï±íÖеÄʵÑéÊý¾Ý£¬ÇëÄã°ïÖúС»ª¼ÆËã¡¢·ÖÎöʵÑéÊý
¢ÙСµÆÅÝLµÄ¶î¶¨¹¦ÂÊΪ
0.5
0.5
W£®
¢ÚСµÆÅÝÏûºÄµÄ¹¦ÂÊÓëÆä·¢¹âÁÁ¶ÈÖ®¼äµÄ¹ØϵÊÇ
СµÆÅÝÏûºÄµÄ¹¦ÂÊÔ½´ó£¬Ð¡µÆÅÝÔ½ÁÁ
СµÆÅÝÏûºÄµÄ¹¦ÂÊÔ½´ó£¬Ð¡µÆÅÝÔ½ÁÁ
£®
¢ÛÔÚʵÑéÐòºÅΪ1µÄʵÑéÖУ¬Ð¡µÆÅݲ»·¢¹âµÄÔ­ÒòÊÇ
СµÆÅݵÄʵ¼Ê¹¦ÂÊ̫С£¬´ï²»µ½·¢¹âʱÐèÒªµÄ¹¦ÂÊ£®
СµÆÅݵÄʵ¼Ê¹¦ÂÊ̫С£¬´ï²»µ½·¢¹âʱÐèÒªµÄ¹¦ÂÊ£®
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2007?¼ÃÄÏ£©µç·¹¹øÒѽøÈëÁËǧ¼ÒÍò»§£¬Õý³£Ê¹ÓÃʱ£¬¹øÄÚµÄÃ×·¹ÖóÊìºó£¬Ëü¾Í×Ô¶¯»»³É±£Î£®Æäʵ£¬Ëü»¹ÓС°½Úµç¡±µÄDZÁ¦¿ÉÍÚ£®Ð¡»ªÍ¬Ñ§Í¨¹ý¶à´ÎʵÑé×ܽá³öÁËÒ»¸ö½ÚµçµÄСÇÏÃÅ£¬¼´µ±¹øÄÚµÄÃ×·¹¸Õ·ÐÌÚ»¹Ã»ÓÐÊìʱ£¬¾ÍÁ¢¼´ÇжϵçÔ´£¬ÀûÓõ緹¹ø¼ÓÈÈ°åµÄÓàÈȽ«Ã×·¹ÖóÊ죮ϱíÊÇС»ªÍ¬Ñ§ÔÚ¼ÒÀïʵÑéʱ¼Ç¼µÄ9Ô·ݵÄƽ¾ùÊý¾Ý£®£¨Ã¿´Î×ö·¹ÓÃͬÑùµÄË®Á¿¡¢Ã×Á¿£©
9ÔÂ·Ý Èý½ÇÅÆ
¶î¶¨¹¦ÂÊ/W 1000
ÔÂƽ¾ù»·¾³Î¶È/¡æ 29¡«36
Ë®Á¿/kg 1.5
Ã×Á¿/kg 1.0
Õý³£·½·¨ÖóÊì·¹
µç·¹¹ø¹¤×÷µÄʱ¼ä/min
24
ÓÃСÇÏÃÅÖóÊì·¹
µç·¹¹ø¹¤×÷µÄʱ¼ä/min
17
Çë¸ù¾Ý±íÖÐÊý¾Ý¼ÆË㣺
£¨1£©²ÉÓÃС»ªµÄ½ÚµçСÇÏÃÅÖóÒ»´ÎÃ×·¹¿É½ÚÔ¼¶àÉÙµçÄÜ£¿
£¨2£©Èç¹û½«½ÚÊ¡µÄÕâЩµçÄÜÈ«²¿ÓÃÀ´ÉÕË®£¬ÔÚ1±ê×¼´óÆøѹÏ¿ÉÒÔ½«¶àÉÙ20¡æµÄË®ÉÕ¿ª£¿
[Ë®µÄ±ÈÈÈÈÝcË®=4.2¡Á103J/£¨kg?¡æ£©]
£¨3£©ÈýÏ¿¹¤³ÌÍ깤ºó£¬Æä·¢µçվÿÌì¿É·¢µç2.32¡Á108ǧÍßʱ£®¼ÙÉèÈ«¹ú°´3ÒÚ»§¼ÒÍ¥¼Æ£¬Æ½¾ùÿ»§Ã¿ÌìÖóÒ»´ÎÃ×·¹£¬ÓÃС»ªµÄ½Úµç·½·¨Ò»Ä꣨°´360Ìì¼Æ£©½ÚÊ¡µÄµçÄÜÏ൱ÓÚÈýÏ¿·¢µçÕ¾¼¸ÌìµÄ·¢µçÁ¿£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2007?¼ÃÄÏ£©Ð¡»ªÏëÖªµÀËûµÄ¡°¸£ÍÞ¡±Íæ¾ßÊÇÄÄÖÖËÜÁÏÖƳɵģ¬ËûÊ×ÏÈ´Ó¸ÃÍæ¾ßÉú²ú³§¼ÒµÄÍøÕ¾Éϲ鵽ÁËÖÆ×÷Íæ¾ßµÄ¸÷ÖÖÔ­²ÄÁϵÄÃܶÈÈçÏÂ±í£»È»ºóËûÓÃϸÏß°Ñ¡°¸£ÍÞ¡±Ë©×¡¹ÒÔÚµ¯»É²âÁ¦¼ÆµÄ¹Ò¹³ÉÏ£¬µ¯»É²âÁ¦¼ÆµÄʾÊýΪ3.5N£¬Èçͼ¼×Ëùʾ£»µ±°Ñ¡°¸£ÍÞ¡±½þûÔÚË®ÖÐʱ£¬µ¯»É²âÁ¦¼ÆµÄʾÊýΪ1.5N£¬ÈçͼÒÒËùʾ£®È¡g=10N/kg£¬ÊÔÎÊ£º
£¨1£©Íæ¾ßµÄÖÊÁ¿£®
ËÜÁÏÃû³Æ ¾Û±ûÏ© ¾Û±½ÒÒÏ© ¾ÛÒÒÏ©´¼
ÃܶȦÑ/£¨g?cm-3£© 0.89 1.05 1.28
ËÜÁÏÃû³Æ Ó²ÖÊPVC ¾Û¶þ·úÒÒÏ© ¾ÛËÄ·úÒÒÏ©
ÃܶȦÑ/£¨g?cm-3£© 1.46 1.75 2.25
£¨2£©Íæ¾ßµÄÌå»ý£®
£¨3£©Íæ¾ßÊÇÓÉÄÄÖÖËÜÁÏÖƳɵģ¿

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸