ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÍÑÀ¯ÖýÔìÊǼӹ¤ÊÎÎï»ò¸´ÔÓÁã¼þµÄÒ»ÖÖ·½·¨¡£ÀýÈ磺Ҫ¼Ó¹¤Ò»¸öÎýÖʵÄС¹·¹ÒÊΣ¬ËüµÄ¾ßÌå×ö·¨ÈçͼËùʾ£ºÏÈÓÃÀ¯ÖÆ×÷Ò»¸öС¹·¹ÒÊεÄÄ£ÐÍ£¬ÔÙÒÔÄÍ»ðÄཬ½½×¢£¬´ýÄཬ¸ÉÔïºó¡£¼ÓÈÈʹÀ¯Ä£ÐÍÈÛ»¯Á÷³ö£¬ÖƳÉС¹·ÐÎ×´µÄģѨ£¬×îºó½«ÈÛ³ÉÒºÌåµÄÎýµ¹ÈëģѨÄÚ£¬´ýÎýÀäÈ´Äý¹ÌºóÈ¡³ö¡£ÒÑÖª£ºÐ¡¹·À¯Ä£µÄÖÊÁ¿ÊÇ2.7g£¬ÖÆ×÷³öµÄС¹·¹ÒÊεÄÖÊÁ¿ÊÇ21.84g£¬¦ÑÀ¯£½0.9¡Á103kg/m3£®Çó£º
£¨1£©À¯Ä£µÄÌå»ýÊǶà´ó£¿
£¨2£©½ðÊôÎýµÄÃܶÈÊǶà´ó£¿
¡¾´ð°¸¡¿£¨1£©3cm3£»£¨2£©7.28g/cm3¡£
¡¾½âÎö¡¿
£¨1£©¸ù¾ÝÌâÒâÖªµÀ£¬À¯µÄÃܶÈÊÇ£º £¬Ð¡¹·À¯Ä£µÄÖÊÁ¿ÊÇ£ºm=2.7g£¬
ÓÉÖªµÀ£¬À¯Ä£µÄÌå»ýÊÇ£º£»
£¨2£©ÓÉÌâÒâÖªµÀ£¬ÎýµÄÌå»ýµÈÓÚÀ¯µÄÌå»ý£¬¼´
ÓÖÒòΪС¹·¹ÒÊεÄÖÊÁ¿ÊÇ£º£¬ËùÒÔ£¬½ðÊôÎýµÄÃܶÈÊÇ£º
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿