Èçͼ¼×Ëùʾ£¬Á½¿éÕý¶ÔµÄƽÐнðÊô°åABºÍCD°å¼ä¾àΪ£¬³¤¶ÈΪ£¬B¡¢DΪÁ½°åµÄÓҶ˵㣬ÔÚ½ðÊô°åB¡¢D¶ËµÄÓÒ²àÓÐÒ»Óë½ðÊô°å´¹Ö±·ÅÖõÄÓ«¹âÆÁMN£¬Ó«¹âÆÁ¾àB¡¢D¶ËµÄ¾àÀëΪ£®ÖÊÁ¿¡¢µçÁ¿µÄµç×ÓÒÔÏàͬµÄ³õËٶȴӼ«°å×ó±ßÖÐÑëÑØƽÐм«°åµÄÖ±ÏßÁ¬Ðø²»¶ÏµØÉäÈ룮µ±Á½°å¾ù²»´øµçʱ£¬ÕâЩµç×Óͨ¹ýÁ½°åÖ®¼äµÄʱ¼äΪ3T/2£»µ±ÔÚÁ½°å¼ä¼ÓÈçͼÒÒËùʾµÄÖÜÆÚΪT£¬·ùÖµºãΪµÄÖÜÆÚÐÔµçѹʱ£¨Ê±¿ÌAB°åµçÊƸßÓÚCD°å£© £¬ËùÓеç×Ó¾ùÄÜ´ÓÁ½°å¼äͨ¹ý¡£ÊÔÈ·¶¨
£¨1£©ÔÚt=ʱ¿Ì´ÓÁ½°å¼ä·ÉÈëµÄµç×ÓÔڷɳöµç³¡Ê±Ô˶¯·½ÏòÓëˮƽ·½ÏòµÄ¼Ð½ÇΪ¶àÉÙ£¨Óᢡ¢¡¢T¡¢¡¢¼°·´ÕýÇк¯Êý±íʾ£©£»
£¨2£©µç×ÓÔÚÓ«¹âÆÁÉÏ·Ö²¼µÄ·¶Î§¡££¨ºöÂÔ¼«°å±ßÔµ´¦µç³¡µÄÓ°Ï죬²»¼Æµç×ÓµÄÖØÁ¦ÒÔ¼°µç×ÓÖ®¼äµÄÏ໥×÷Óã¬È¡c/kg, =20V,T=10-6s,d=1m£©£®
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
T | 2 |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º
R |
2 |
¦Ð |
T |
3eB2R2 |
m |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2011½ìËÄ´¨Ê¡³É¶¼Íâ¹úÓïѧУ¸ßÈý4ÔÂÔ¿¼Àí¿ÆÎïÀí¾í ÌâÐÍ£º¼ÆËãÌâ
Èçͼ¼×Ëùʾ£¬Á½¿éÏàͬµÄƽÐнðÊô°åM¡¢NÕý¶Ô×Å·ÅÖã¬Ïà¾àΪ£¬°åM¡¢NÉϵÄС¿×s1¡¢s2Óë OÈýµã¹²Ïߣ¬s2O=R£¬Á¬Ïßs1O´¹Ö±ÓÚ°åM¡¢N¡£ÒÔOΪԲÐÄ¡¢RΪ°ë¾¶µÄÔ²ÐÎÇøÓòÄÚ´æÔڴŸÐӦǿ¶È´óСΪB¡¢·½Ïò´¹Ö±Ö½ÃæÏòÀïµÄÔÈÇ¿´Å³¡¡£ÊÕ¼¯ÆÁPQÉϸ÷µãµ½OµãµÄ¾àÀ붼Ϊ2R£¬Á½¶ËµãP¡¢Q¹ØÓÚÁ¬Ïßs1O¶Ô³Æ£¬ÆÁPQËù¶ÔµÄÔ²ÐĽǦÈ=120¡ã¡£ÖÊÁ¿Îªm¡¢µçºÉÁ¿ÎªeµÄÖÊ×ÓÁ¬Ðø²»¶ÏµØ¾s1½øÈëM¡¢N¼äµÄµç³¡£¬½Ó×Åͨ¹ýs2½øÈë´Å³¡¡£ÖÊ×ÓÖØÁ¦¼°ÖÊ×Ó¼äµÄÏ໥×÷Óþù²»¼Æ£¬ÖÊ×ÓÔÚs1´¦µÄËٶȿ´×÷Áã¡£
¢ÅÈôM¡¢N¼äµÄµçѹUMN=+Uʱ£¬ÇóÖÊ×Ó½øÈë´Å³¡Ê±ËٶȵĴóС¡£
¢ÆÈôM¡¢N¼ä½ÓÈëÈçͼÒÒËùʾµÄËæʱ¼ät±ä»¯µÄµçѹ£¨Ê½ÖУ¬ÖÜÆÚTÒÑÖª£©£¬ÇÒÔÚÖÊ×Óͨ¹ý°å¼äµç³¡ÇøÓòµÄ¼«¶Ìʱ¼äÄÚ°å¼äµç³¡ÊÓΪºã¶¨£¬ÔòÖÊ×ÓÔÚÄÄЩʱ¿Ì×Ôs1´¦½øÈë°å¼ä£¬´©³ö´Å³¡ºó¾ùÄÜ´òµ½ÊÕ¼¯ÆÁPQÉÏ£¿
¢ÇÔÚÉÏÊö¢ÆÎʵÄÇéÐÎÏ£¬µ±M¡¢N¼äµÄµçѹ²»Í¬Ê±£¬ÖÊ×Ó´Ós1´¦µ½´òÔÚÊÕ¼¯ÆÁPQÉϾÀúµÄʱ¼ät»á²»Í¬£¬ÇótµÄ×î´óÖµ¡£
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2011-2012ѧÄê½Î÷Ê¡Äϲý¶þÖиßÈý£¨ÉÏ£©µÚÈý´ÎÔ¿¼ÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ
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