ÌâÄ¿ÄÚÈÝ
СÑô¸ù¾ÝϱíËùÌṩµÄ¼¸ÖÖÎïÖʵıÈÈÈÈݵóöÒÔϼ¸¸ö½áÂÛ£¬ÆäÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
|
·ÖÎö£º·ÖÎö±íÖÐÊý¾Ý£¬¸ù¾ÝÈÈÁ¿¹«Ê½Q=cm¡÷t·ÖÎö´ðÌ⣮
½â´ð£º½â£ºA¡¢ÓɱíÖÐÊý¾Ý¿ÉÖª£¬ÒºÌåµÄ±ÈÈÈÈݶàÊý±È¹ÌÌå´ó£¬¹ÊAÕýÈ·£»
B¡¢ÓɱíÖÐÊý¾Ý¿ÉÖª£¬Ë®µÄ±ÈÈÈÈÝ´óÓÚúÓ͵ıÈÈÈÈÝ£¬¡ßQ=cm¡÷t£¬mÏàͬ£¬QÏàͬ£¬¡àÓÉ¡÷t=
¿ÉÖª£¬Ë®µÄζȱ仯С£¬¹ÊB´íÎó£»
C¡¢ÓɱíÖÐÊý¾Ý¿ÉÖª£¬Ë®Óë±ùµÄ±ÈÈÈÈݲ»Í¬£¬ÓÉ´Ë¿ÉÖª£¬Í¬Ò»ÎïÖÊ·¢ÉúÎï̬±ä»¯ºó£¬±ÈÈÈÈÝÒ²·¢Éú±ä»¯£¬¹ÊCÕýÈ·£»
D¡¢ÓɱíÖÐÊý¾Ý¿ÉÖª£¬ÂÁµÄ±ÈÈÈÈÝ´óÓÚ͵ıÈÈÈÈÝ£¬ÓÉQ=cm¡÷t¿ÉÖª£¬ÖÊÁ¿ÏàµÈµÄÂÁ¿éºÍÍ¿éÉý¸ßÏàͬµÄζȣ¬ÂÁ¿éÎüÊÕµÄÈÈÁ¿¶à£¬¹ÊD´íÎó£»
¹ÊÑ¡AC£®
B¡¢ÓɱíÖÐÊý¾Ý¿ÉÖª£¬Ë®µÄ±ÈÈÈÈÝ´óÓÚúÓ͵ıÈÈÈÈÝ£¬¡ßQ=cm¡÷t£¬mÏàͬ£¬QÏàͬ£¬¡àÓÉ¡÷t=
Q |
cm |
C¡¢ÓɱíÖÐÊý¾Ý¿ÉÖª£¬Ë®Óë±ùµÄ±ÈÈÈÈݲ»Í¬£¬ÓÉ´Ë¿ÉÖª£¬Í¬Ò»ÎïÖÊ·¢ÉúÎï̬±ä»¯ºó£¬±ÈÈÈÈÝÒ²·¢Éú±ä»¯£¬¹ÊCÕýÈ·£»
D¡¢ÓɱíÖÐÊý¾Ý¿ÉÖª£¬ÂÁµÄ±ÈÈÈÈÝ´óÓÚ͵ıÈÈÈÈÝ£¬ÓÉQ=cm¡÷t¿ÉÖª£¬ÖÊÁ¿ÏàµÈµÄÂÁ¿éºÍÍ¿éÉý¸ßÏàͬµÄζȣ¬ÂÁ¿éÎüÊÕµÄÈÈÁ¿¶à£¬¹ÊD´íÎó£»
¹ÊÑ¡AC£®
µãÆÀ£ºÔÚ·ÖÎöÓйرÈÈÈÈݵÄ֪ʶʱ£¬¾Ý¹«Ê½Q=cm¡÷t¿É¿´³ö£¬ÕâÀïÃæµÄ±äÁ¿Óжà¸ö£¬¹ÊÔÚ·ÖÎöʱҪÓÿØÖƱäÁ¿µÄ˼άÀ´¿¼ÂÇ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
СÑôͬѧ¸ù¾ÝϱíËùÌṩµÄ¼¸ÖÖÎïÖʵÄÃܶȣ¨³£Î³£Ñ¹Ï£©£¬µÃ³öÒÔÏÂËĸö½áÂÛ£¬ÆäÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
|
СÑôͬѧ¸ù¾ÝϱíËùÌṩµÄÐÅÏ¢µÃ³öÒÔÏÂËĸö½áÂÛ£¬ÆäÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£© ¼¸ÖÖÎïÖʵÄÃܶȣ¨³£Î³£Ñ¹£©
|
СÑôͬѧ¸ù¾ÝϱíËùÌṩµÄ¼¸ÖÖÎïÖʵÄÃܶȣ¨³£Î³£Ñ¹Ï£©£¬µÃ³öÒÔÏÂËĸö½áÂÛ£¬ÆäÖÐÕýÈ·µÄÊÇ
ÎïÖÊ | ÃܶÈ/kg?m-3 | ÎïÖÊ | ÃܶÈ/kg?m-3 |
Ë® | 1.0¡Á103 | ±ù | 0.9¡Á103 |
¾Æ¾« | 0.8¡Á103 | ÂÁ | 2.7¡Á103 |
Ë®Òø | 13.6¡Á103 | Í | 8.9¡Á103 |
- A.¹ÌÌåµÄÃܶȶ¼´óÓÚÒºÌåµÄÃܶÈ
- B.Ìå»ýÏàͬµÄÂÁ¿éºÍ±ù¿é£¬ÂÁ¿éÖÊÁ¿ÊDZù¿éµÄ3±¶
- C.ÈôÖÊÁ¿ÏàµÈ£¬ÔòʵÐÄÂÁ¿éµÄÌå»ýÒ»¶¨´óÓÚʵÐÄÍ¿éµÄÌå»ý
- D.°Ñ200g¾Æ¾«µ¹µô100g£¬Ê£Ï¾ƾ«µÄÃܶÈΪ0.4¡Á103kg/m3
СÑôͬѧ¸ù¾ÝϱíËùÌṩµÄ¼¸ÖÖÎïÖʵÄÃܶȣ¨³£Î³£Ñ¹Ï£©£¬µÃ³öÒÔÏÂËĸö½áÂÛ£¬ÆäÖÐÕýÈ·µÄÊÇ£¨ £©
A£®¹ÌÌåµÄÃܶȶ¼´óÓÚÒºÌåµÄÃܶÈ
B£®Ìå»ýÏàͬµÄÂÁ¿éºÍ±ù¿é£¬ÂÁ¿éÖÊÁ¿ÊDZù¿éµÄ3±¶
C£®ÈôÖÊÁ¿ÏàµÈ£¬ÔòʵÐÄÂÁ¿éµÄÌå»ýÒ»¶¨´óÓÚʵÐÄÍ¿éµÄÌå»ý
D£®°Ñ200g¾Æ¾«µ¹µô100g£¬Ê£Ï¾ƾ«µÄÃܶÈΪ0.4×103kg/m3
ÎïÖÊ | ÃܶÈ/kg?m-3 | ÎïÖÊ | ÃܶÈ/kg?m-3 |
Ë® | 1.0×103 | ±ù | 0.9×103 |
¾Æ¾« | 0.8×103 | ÂÁ | 2.7×103 |
Ë®Òø | 13.6×103 | Í | 8.9×103 |
A£®¹ÌÌåµÄÃܶȶ¼´óÓÚÒºÌåµÄÃܶÈ
B£®Ìå»ýÏàͬµÄÂÁ¿éºÍ±ù¿é£¬ÂÁ¿éÖÊÁ¿ÊDZù¿éµÄ3±¶
C£®ÈôÖÊÁ¿ÏàµÈ£¬ÔòʵÐÄÂÁ¿éµÄÌå»ýÒ»¶¨´óÓÚʵÐÄÍ¿éµÄÌå»ý
D£®°Ñ200g¾Æ¾«µ¹µô100g£¬Ê£Ï¾ƾ«µÄÃܶÈΪ0.4×103kg/m3