¡°Î壮һ¡±»Æ½ðÖÜ£¬Õ÷Õ÷ºÍÂèÂèµ½ÎÞÎýÂÃÓΣ¬ÂòÁËÒ»Ö»ÒËÐ˲èºø£¬ÈçͼËùʾ£¬ËýÌý˵ÒËÐ˲èºøÊÇÓÃÒËÐËÌØÓеÄÄàÍÁ²ÄÁÏÖƳɵģ¬ºÜÏëÖªµÀÕâÖÖ²ÄÁϵÄÃܶȣ®ÓÚÊÇËûÓÃÌìƽ²â³öÁ˺ø¸ÇµÄÖÊÁ¿Îª44.4g£¬ÔٰѲèºø¸Ç·ÅÈë×°ÂúË®µÄÒçË®±­ÖУ¬²¢²âµÃÒç³öµÄË®µÄÖÊÁ¿ÊÇ14.8g£®
£¨1£©ÇëÎÊÕ÷Õ÷ͬѧ¡°°Ñ²èºø¸Ç·ÅÈë×°ÂúË®µÄÒçË®±­ÖУ¬²¢²âµÃÒç³öµÄË®µÄÖÊÁ¿¡±ÕâÑù×öµÄÄ¿µÄÊÇΪÁË______£¬ËüÓõ½ÁËÏÂÃæµÄ______·½·¨£¨Ìî×ÖĸÐòºÅ£©
A¡¢¿ØÖƱäÁ¿·¨B¡¢×ª»»·¨C¡¢Àà±È·¨D¡¢ÀÛ»ý·¨
£¨2£©ÇëËã³öÕâÖÖ²ÄÁϵÄÃܶÈÊǶàÉÙ£¿
£¨3£©Èô²âµÃÕû¸ö¿Õ²èºøÖÊÁ¿Îª159g£¬Ôò¸Ã²èºøËùÓòÄÁϵÄÌå»ýÊǶà´ó£¿
£¨1£©¡°°Ñ²èºø¸Ç·ÅÈë×°ÂúË®µÄÒçË®±­ÖУ¬²¢²âµÃÒç³öµÄË®µÄÖÊÁ¿¡±ÕâÑù×öµÄÄ¿µÄÊÇÀûÓÃË®µÄÃܶÈÇó³öÅÅ¿ªË®µÄÌå»ý£¬¼´Îªºø¸ÇµÄÌå»ý£»
£¨2£©Òç³öË®µÄÌå»ý¼´Îªºø¸ÇµÄÌå»ý£»V¸Ç=VË®=
mË®
¦ÑË®
=
14.4g
1g/cm3
=14.8cm3£»
ÕâÖÖ²ÄÁϵÄÃܶȦѺø=
mºø
Vºø
=
44.4g
14.8cm3
=3.0g/cm3=3.0¡Á103kg/m3£»
£¨3£©¸Ã²èºøËùÓòÄÁϵÄÌå»ýΪVºø=
m
¦Ñ
=
159g
3.0g/cm3
=53cm3=5.3¡Á10-5m3£®
¹Ê´ð°¸Îª£º£¨1£©Çó³öºø¸ÇµÄÌå»ý£»B£»
£¨2£©ÕâÖÖ²ÄÁϵÄÃܶÈÊÇ3.0¡Á103kg/m3£»
£¨3£©Èô²âµÃÕû¸ö¿Õ²èºøµÄÖÊÁ¿Îª159g£¬Ôò¸Ã²èºøËùÓòÄÁϵÄÌå»ýΪ5.3¡Á10-5m3£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£º¶àÑ¡Ìâ

¹ØÓÚÎïÖʵÄÃܶȣ¬ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®ÃܶȲ»Í¬µÄÁ½¸öÎïÌ壬ÆäÖÊÁ¿Ò»¶¨²»Í¬
B£®Ò»¿éשÇгÉÌå»ýÏàµÈµÄÁ½¿éºó£¬×©µÄÃܶȲ»¸Ä±ä
C£®ÌúµÄÃܶȱÈÂÁµÄÃܶȴ󣬱íʾÌúµÄÖÊÁ¿´óÓÚÂÁµÄÖÊÁ¿
D£®Í­µÄÃܶÈÊÇ8.9¡Á103kg/m3£¬±íʾÌå»ýÊÇ1m3µÄÍ­ÆäÖÊÁ¿Îª8.9¡Á103kg

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

¼ø¶¨ÎïÖʵķ½·¨Ö®Ò»ÊDzⶨËüµÄ£¨¡¡¡¡£©
A£®Ìå»ýB£®ÖÊÁ¿C£®ÃܶÈD£®ÖØÁ¦

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

Ò»µ×Ãæ»ýÊÇ100ÀåÃ×2µÄÖùÐÎÈÝÆ÷ÄÚÊ¢ÓÐÊÊÁ¿µÄË®£¬ÏÖ½«º¬ÓÐʯ¿éµÄ±ù¿éͶÈëÈÝÆ÷µÄË®ÖУ¬Ç¡ºÃÐü¸¡£¬´ËʱˮλÉÏÉýÁË6ÀåÃ×£®µ±Ë®Öбù¿éÈ«²¿ÈÛ»¯ºó£¬Ïà±ÈÈÛ»¯Ç°Ë®¶ÔÈÝÆ÷µ×²¿µÄѹǿ¸Ä±äÁË55.28ÅÁ£®Çóʯ¿éµÄÃܶȣ®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÌî¿ÕÌâ

ÈçͼËùʾ£¬ÊÇС»ªÔÚ̽¾¿¼×¡¢ÒÒ¡¢±ûÈýÖÖÎïÖʵÄÖÊÁ¿mÓëÌå»ýVµÄ¹Øϵʱ×÷³öµÄͼÏó£®ÓÉͼÏó¿ÉÖª£¬ÃܶÈ×î´óµÄÎïÖÊÊÇ______£¬ÒÒÎïÖʵÄÃܶÈÊÇ______g/cm3£¬ÎïÖʼ׿ÉÄÜÊÇ______£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ÓÐÒ»ÖÖ¼ÍÄî±Ò£¬ËüµÄÖÊÁ¿ÊÇ16.1gΪÁ˲âÁ¿ËüµÄÌå»ý£¬°Ñ10öÕâÖÖÏàͬµÄ¼ÍÄî±Ò·ÅÈËһʢÂúË®µÄÉÕ±­ÖУ¬²âµÃÒç³öµÄË®µÄÖÊÁ¿ÊÇ18g£®ÈçͼËùʾµÄÊÇһЩÎïÖʵÄÃܶȵĽ×ÌÝʾÒâͼ£®
£¨1£©ÇóÖÆ×÷µÄ¼ÍÄî±ÒµÄ½ðÊôµÄÃܶȣ®
£¨2£©Ëµ³öÕâÖÖ½ðÊôµÄÃû³Æ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

СºìµÄÂèÂ赽ij¹¤ÒÕÆ·É̵êÂòÁËÒ»¼þÓýðÍ­ºÏ½ðÖƳɵÄʵÐŤÒÕÆ·£¬É̵êµÄÊÛ»õÔ±¸æËßËý£ºÕâ¼þ¹¤ÒÕÆ·ÊÇÓÉÖÊÁ¿ÏàµÈµÄ½ð¡¢Í­Á½ÖÖ½ðÊô»ìºÏÖƳɵģ¬º¬½ðÁ¿Îª50%£®Ð¡ºìµÄÂèÂè¶ÔÊÛ»õÔ±µÄ»°±íʾ»³ÒÉ£¬ÈÃСºì½øÐÐÑéÖ¤£®Ð¡ºìͨ¹ýʵÑé²â³ö¹¤ÒÕÆ·µÄÖÊÁ¿Îª600g£¬Ìå»ýΪ52cm3£¬²¢´Ó¿Î±¾Öвé³öÁ˽ð¡¢Í­µÄÃܶȷֱð19.3g/cm3ºÍ8.9g/cm3£®
£¨1£©Çë¸ù¾ÝСºìµÄʵÑé½á¹û¼ÆË㹤ÒÕÆ·µÄÃܶȣ®
£¨2£©Çë¸ù¾ÝÊÛ»õÔ±µÄ˵·¨£¬¼ÆËã³ö¹¤ÒÕÆ·µÄÃܶȣ®²¢ËµÃ÷ÊÛ»õÔ±µÄ»°ÊÇ·ñ¿ÉÐÅ£®
£¨3£©Çë¼ÆËãÕâ¼þ¹¤ÒÕÆ·µÄʵ¼Êº¬½ðÁ¿£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

С¸ÕͬѧÏë²â½´Ó͵ÄÃܶȣ¬µ«¼ÒÀïÖ»ÓÐÌìƽ¡¢Ð¡¿ÕƿûÓÐÁ¿Í²£¬Ëû˼¿¼ºó°´ÕÕÏÂͼµÄ·½·¨½øÐвâÁ¿£¬¿ÕÆ¿µÄÖÊÁ¿Îª14g£¬×°ÂúË®ºóÖÊÁ¿Îª44g£¬×°Âú½´ÓͺóµÄÖÊÁ¿ÎªÍ¼ÖÐíÀÂëµÄÖÊÁ¿£®ÇëÄã¸ù¾ÝС¸Õ²âÁ¿µÄÊý¾Ý¼ÆËã³ö½´Ó͵ÄÃܶȣ®
£¨1£©Æ¿×ÓµÄÈÝ»ýΪ¶àÉÙcm3£¿
£¨2£©½´Ó͵ÄÖÊÁ¿ÊǶàÉÙg£¿
£¨3£©½´Ó͵ÄÃܶÈÊǶàÉÙ£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

Ò»¸öÆ¿×Ó×°ÂúË®ºó£¬Æ¿×ÓºÍË®µÄ×ÜÖÊÁ¿ÊÇm1£»ÓÃÕâ¸öÆ¿×Ó×°ÂúúÓͺó£¬Æ¿×ÓºÍúÓ͵Ä×ÜÖÊÁ¿ÊÇm2£¬ÒÑÖª£ºË®µÄÃܶÈΪ¦Ñ£¬ÃºÓ͵ÄÃܶÈΪ0.8¦Ñ£¬ÔòÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®¿ÕÆ¿×ÓµÄÖÊÁ¿mÆ¿=5m2-4m1
B£®Æ¿×ÓµÄÈÝ»ýVÈÝ=
5m1-m2
¦Ñ
C£®Æ¿×ÓÖÐúÓ͵ÄÖÊÁ¿mÓÍ=4£¨m1-4m2£©
D£®Æ¿ÖÐË®µÄÖÊÁ¿mË®=5m1-4m2

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸