ÌâÄ¿ÄÚÈÝ
ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
·ÖÎö£ººËÁ¦ÊǶ̳ÌÁ¦£¬¦ÂÉäÏßÊÇÔ×ÓºËÖеÄÒ»¸öÖÐ×Óת»¯ÎªÖÊ×ÓͬʱÊÍ·ÅÒ»¸öµç×Ó£¬¸ù¾Ý°ëË¥Æڵĺ¬Òå¿ÉÒÔËã³öûÓÐË¥±äµÄÔªËØÖÊÁ¿£®ÕýÈ·Àí½âÓ¦¸Ã¹«Ê½m¡ä=m(
)
1 |
2 |
t |
T |
½â´ð£º½â£ºA¡¢ºËÁ¦ÊǶ̳ÌÁ¦£¬Ô×ÓºËÄÚÿ¸öºË×ÓÖ»¸úËüÃÇÏàÁڵĺË×Ó¼ä²ÅÓкËÁ¦×÷Óã¬AÕýÈ·£»
B¡¢¦ÂÉäÏßÊÇÔ×ÓºËÖеÄÒ»¸öÖÐ×Óת»¯ÎªÖÊ×ÓͬʱÊÍ·ÅÒ»¸öµç×Ó£¬B´íÎó£»
C¡¢ÓÉË¥±ä¹«Ê½m¡ä=m(
)
£¬Öª¾¹ýÈý¸ö°ëË¥ÆÚºó£¬ÆäÖÐÓËÔªËصÄÖÊÁ¿»¹Ê£m/8£¬CÕýÈ·£»
D¡¢ÓÉË¥±ä¹«Ê½m¡ä=m(
)
£¬ÖªD´íÎó£»
¹ÊÑ¡AC
B¡¢¦ÂÉäÏßÊÇÔ×ÓºËÖеÄÒ»¸öÖÐ×Óת»¯ÎªÖÊ×ÓͬʱÊÍ·ÅÒ»¸öµç×Ó£¬B´íÎó£»
C¡¢ÓÉË¥±ä¹«Ê½m¡ä=m(
1 |
2 |
t |
T |
D¡¢ÓÉË¥±ä¹«Ê½m¡ä=m(
1 |
2 |
t |
T |
¹ÊÑ¡AC
µãÆÀ£º±¾Ì⿼²éÁ˺ËÁ¦µÄÌص㣬˥±äµÄʵÖÊ£¬ÕýÈ·Àí½âÓ¦¸Ã¹«Ê½m¡ä=m(
)
£®
1 |
2 |
t |
T |
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿