ÈçͼËùʾ£¬ÒÔ×ø±êÔµãOΪԲÐĵİ뾶ΪRµÄ°ëÔ²ÐÎÇøÓòÀÓÐÒ»´¹Ö±Ö½ÃæÏòÀïµÄÔÈÇ¿´Å³¡(°üÀ¨±ß½ç)£¬´Å¸ÐӦǿ¶ÈΪB¡£Í¼ÖÐabcdÊÇÒ»¸öÍâÇÐÓÚ°ëÔ²µÄ¾ØÐα߽çÏß¡£ÔÚ- R £ y £ RµÄÇø¼äÄÚ£¬ÓÐÒ»ÊøËÙ¶ÈÏàͬµÄ´øµçÁ£×Ó´¹Ö±yÖáÉäÈë´Å³¡ÇøÓò£¬Á£×ÓµÄÖÊÁ¿Îªm¡¢µçºÉÁ¿Îªq£¬Á£×ÓµÄÖØÁ¦ºöÂÔ²»¼Æ¡£½á¹û¼ì²âµ½¾ØÐα߽çÏßµÄab¡¢be¶Î¾ùÓÐÁ£×ÓÉä³ö£¬¶ø¾ØÐα߽çÏßÆäÓಿ·Ö¾ùÎÞÁ£×ÓÉä³ö¡£Çó£º
£¨1£©Á£×ÓÈëÉäµÄËÙ¶ÈÊǶà´ó?
£¨2£©´ÓOµãÈëÉäµÄÁ£×Ó£¬´Ó¾ØÐα߽çÏßÉϵÄʲôλÖÃÉä³ö¡£
£¨3£©´Ó(0£¬R/2)µãÈëÉäµÄÁ£×Ó£¬´Ó¾ØÐα߽çÏßÉϵÄʲôλÖÃÉä³ö¡£
½â£º£¨1£©ÒòΪÔÚab¡¢be¶Î¾ùÓÐÁ£×ÓÉä³ö£¬ÆäÓಿ·Ö¾ùÎÞÁ£×ÓÉä³ö£¬ËùÒÔÁ£×Ó´øÕýµç£¬ÇÒÁ£×ÓÔڴų¡ÖеĹ켣°ë¾¶Âú×ã
r = R¡¡¡¡¡¡¡¡¡¡¡ £¨3·Ö£©
ÓÖ¸ù¾Ý ¡¡¡¡¡¡¡¡ ..£¨2·Ö£©
µÃÈëÉäÁ£×ÓµÄËÙ¶È ¡¡¡¡¡¡ £¨2·Ö£©
£¨2£©´ÓOµãÈëÉäµÄÁ£×Ó£¬´ÓEµãÉä³ö´Å³¡£¬¾¹ý±ß½çÏßbeÉϵÄDµã£¬ÈçͼËùʾ¡£ÒòΪOE¹ÂµÄ°ë¾¶r = R £¬ ËùÒÔOE¹ÂµÄÔ²Ðļ´Îªaµã£¬DaOEΪµÈ±ßÈý½ÇÐΣ¬
q = 60¡ã £¬ÔòDµãµÄ×ø±êÖµ
xD = R¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡£¨2·Ö£©
¡¡£¨5·Ö£©
£¨3£©´Óy = R/2µÄgµãÉäÈ룬ÔÚhµãÉä³ö´Å³¡£¬ ÔÚkµãÉä³ö¾ØÐα߽çÏߣ¬ÈçͼËùʾ
¡¡¡¡¡¡¡¡..£¨2·Ö£©
£¨1·Ö£©
¡¡¡..£¨1·Ö£©
Dm f h ÏàËÆÓÚ D klh
¼´£º
£¬¡¡¡¡¡¡¡¡¡¡¡..£¨2·Ö£©
ÔòkµãµÄλÖÃ×ø±ê£º
¡..£¨2·Ö£©
¡¡¡¡¡¡¡¡¡¡¡¡.¡..£¨1·Ö£©
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º
R | 2 |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º
A¡¢´ÓaÒƵ½b£¬µç³¡Á¦²»×ö¹¦ | B¡¢´ÓaÒƵ½c£¬µç³¡Á¦²»×ö¹¦ | C¡¢´ÓdÒƵ½b£¬µç³¡Á¦×ö¹¦Îª2qEr | D¡¢´ÓdÒƵ½a£¬µç³¡Á¦×ö¹¦Îª2qEr |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2012ÄêÔÁ½Ì°æ¸ßÖÐÎïÀíÑ¡ÐÞ3-1 1.5µç³¡Ç¿¶ÈÓëµçÊƲîµÄ¹ØϵÁ·Ï°¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ
ÈçͼËùʾ£¬ÒÔ×ø±êÔµãOΪԲÐÄ£¬°ë¾¶ÎªrµÄÔ²Óë×ø±êÖá½»ÓÚa¡¢b¡¢c¡¢d.ÔÚOµã¹Ì¶¨Ò»¸öÕýµãµçºÉQ£¬ÁíÓÐÒ»¸ö·½ÏòÓëxÖáÕý·½ÏòÏàͬ¡¢³¡Ç¿´óСΪEµÄÔÈÇ¿µç³¡£¬µ±µãµçºÉ+qÔڵ糡ÖÐÒƶ¯Ê±£¨¡¡¡¡£©
A.´ÓaÒƵ½bµç³¡Á¦²»×ö¹¦
B.´ÓaÒƵ½cµç³¡Á¦×öÕý¹¦
C.´ÓdÒƵ½bµç³¡Á¦×ö¹¦Îª2qEr
D.´ÓdÒƵ½aµç³¡Á¦×ö¹¦Îª2qEr
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com