ÌâÄ¿ÄÚÈÝ

¡°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°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø