ÈçͼËùʾ£¬Õæ¿ÕÖÐÓÐÖ±½Ç×ø±êϵ£¬PÊÇ×ø±êÖеÄÒ»¸öµã£¬×ø±êÊÇ£¨£©£®ÓÐÒ»ÖÊÁ¿Îªm¡¢µçºÉÁ¿Îª+qµÄÖʵãA´ÓÔ­µãOÑØyÖáÕý·½ÏòÒÔËÙ¶ÈÉä³ö£¬²»¼ÆÖØÁ¦µÄÓ°Ïì.

£¨1£©ÈôÔÚ¡Ý0ºÍ¡Ý0µÄÇøÓòÄÚ¼ÓÒ»¸ö´¹Ö±ÓÚ×ø±êϵƽÃæµÄÔÈÇ¿´Å³¡£¬Ê¹ÖʵãAÄÜͨ¹ýPµã£®ÊÔÇó³ö´Å¸ÐӦǿ¶ÈBµÄ´óСºÍ·½ÏòÒÔ¼°ÖʵãA´Ó×ø±êÔ­µãOÔ˶¯µ½PµãµÄʱ¼ät£»

£¨2£©ÈôÔÚÖáÉϹ̶¨Ò»¸ö´ø¸ºµçµÄµãµçºÉC£¬Ê¹ÖʵãAÄܱ£³ÖËÙÂʲ»±ä£¬²¢Í¨¹ýPµã£®ÇóµãµçºÉCÓë×ø±êÔ­µãOµÄ¾àÀëºÍµãµçºÉCËù´øµçºÉÁ¿µÄ´óС,ÒÑÖª¾²µçÁ¦³£Á¿Îªk.

£¨1£©ÔÚÔÈÇ¿´Å³¡ÖУ¬ÖʵãA×öÔÈËÙÔ²ÖÜÔ˶¯£¬°ë¾¶£¨1·Ö£©

ÓÖÓУ¬Öʵã½âµÃ£¬´Å¸ÐӦǿ¶È·½Ïò´¹Ö±Ö½ÃæÏòÍâ

ÔÚÔÈÇ¿´Å³¡ÖеÄÖÜÆÚΪ

Ô˶¯Ê±¼äΪ£¨1·Ö£©

ÖʵãA³öÔÈËٴų¡ºó×öÔÈËÙÖ±ÏßÔ˶¯£¬Ô˶¯Ê±¼äΪ£¨1·Ö£©

Ôò×Üʱ¼ä£¨1·Ö£©

£¨2£©Ó¦ÒÔ´øµçµÄµãµçºÉCΪԲÐÄ×öÔÈËÙÔ²ÖÜÔ˶¯£¬Éè°ë¾¶Îªr,ÓУ¨1·Ö£©

£¨1·Ö£©

¹ÊµãµçºÉCÓë×ø±êÔ­µãOµÄ¾àÀëΪÓÖÓУ¨1·Ö£©

ÁªÁ¢½âµÃ£¨1·Ö£©

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬Õæ¿ÕÖÐÓмס¢ÒÒ¡¢±ûÈý¸öÍêÈ«ÏàͬµÄµ¥°Ú£¬°ÚÇò¶¼´øÕýµç£¬°ÚÏß¾øÔµ£®ÏÖÔÚÒÒµÄÐüµã·ÅÒ»´øÕýµçµÄСÇò£¬ÔÚ±ûËùÔÚ¿Õ¼ä¼ÓÒ»ÊúÖ±ÏòϵÄÔÈÇ¿µç³¡£¬Ôò¼×¡¢ÒÒ¡¢±û×ö¼òгÕñ¶¯µÄÖÜÆÚT1¡¢T2¡¢T3µÄ´óС¹ØϵΪ
T1=T2£¾T3
T1=T2£¾T3
£¬´ÓÏàͬ¸ß¶ÈÓɾ²Ö¹¿ªÊ¼ÊÍ·Å£¬ÈýÕßÔ˶¯µ½×îµÍµãµÄ¶¯ÄÜEK1¡¢EK2¡¢EK3µÄ´óС¹ØϵΪ
EK1=EK2£¼EK3
EK1=EK2£¼EK3
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬Õæ¿ÕÖÐÓÐÁ½¸öµãµçºÉq1£¬q2£¬ËüÃǵÄÖÊÁ¿·Ö±ðΪm1£¬m2£¬ÏÖÔÚÓÃÁ½¸ù¾øԵϸ˿ÏßË©¹ÒÔÚÌ컨°åÉÏ£¬ÔÚ¿âÂØÁ¦×÷ÓÃÏÂÁ½¸ùË¿ÏßÓëÊúÖ±·½Ïò¼Ð½ÇΪ¦ÁºÍ¦Â£¬ÇÒÁ½µãµçºÉ´Ëʱ´¦ÓÚͬһˮƽÏßÉÏ£¬ÔòÒÔÏÂ˵·¨ÖÐÕýÈ·µÄÊÇ£¨T1ºÍT2·Ö±ðΪÁ½¸ùË¿Ïߵĵ¯Á¦£©£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬Õæ¿ÕÖÐÓÐÒÔO¡äΪԲÐÄ£¬rΪ°ë¾¶µÄÔ²ÐÎÔÈÇ¿´Å³¡ÇøÓò£¬´Å³¡·½Ïò´¹Ö±Ö½ÃæÏòÍ⣬´Å¸ÐӦǿ¶ÈΪB£®Ô²µÄ×î϶ËÓëxÖáÏàÇÐÓÚÖ±½Ç×ø±êÔ­µãO£¬Ô²µÄÓÒ¶ËÓëƽÐÐÓÚyÖáµÄÐéÏßMNÏàÇУ¬ÔÚÐéÏßMNÓÒ²àxÖáÉÏ·½×ã¹»´óµÄ·¶Î§ÄÚÓз½ÏòÊúÖ±ÏòÏ¡¢³¡Ç¿´óСΪEµÄÔÈÇ¿µç³¡£¬ÔÚ×ø±êϵµÚËÄÏóÏÞ´æÔÚ·½Ïò´¹Ö±Ö½ÃæÏòÀï¡¢´Å¸ÐӦǿ¶È´óСҲΪBµÄÔÈÇ¿´Å³¡£¬ÏÖ´Ó×ø±êÔ­µãOÑØyÖáÕý·½Ïò·¢ÉäËÙÂÊÏàͬµÄÖÊ×Ó£¬ÖÊ×ÓÔڴų¡ÖÐ×ö°ë¾¶ÎªrµÄÔÈËÙÔ²ÖÜÔ˶¯£¬È»ºó½øÈëµç³¡µ½´ïxÖáÉϵÄCµã£®ÒÑÖªÖÊ×Ó´øµçÁ¿Îª+q£¬ÖÊÁ¿Îªm£¬²»¼ÆÖÊ×ÓµÄÖØÁ¦¡¢ÖÊ×Ó¶Ôµç´Å³¡µÄÓ°Ïì¼°ÖÊ×Ó¼äµÄÏ໥×÷ÓÃÁ¦£®Çó£º
£¨1£©ÖÊ×Ó¸Õ½øÈëµç³¡Ê±µÄËٶȷ½ÏòºÍ´óС£»
£¨2£©OC¼äµÄ¾àÀ룻
£¨3£©ÈôÖÊ×Óµ½´ïCµãºó¾­¹ýµÚËÄÏ޵Ĵų¡ºóÇ¡ºÃ±»·ÅÔÚxÖáÉÏDµã´¦£¨Í¼ÉÏδ»­³ö£©µÄÒ»¼ì²â×°Ö÷ý»ñ£¬´ËºóÖÊ×Ó½«²»ÄÜÔÙ·µ»Øµç³¡£¬ÔòCD¼äµÄ¾àÀëΪ¶àÉÙ£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬Õæ¿ÕÖÐÓÐÒÔO1ΪԲÐÄ£¬°ë¾¶Îªr=10cmµÄÔ²ÐÎÔÈÇ¿´Å³¡ÇøÓò£¬×ø±êÔ­µãOΪԲÐδų¡±ß½çÉϵÄÒ»µã£®´Å³¡µÄ´Å¸ÐӦǿ¶È´óСΪB=0.2T£¬·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÍ⣮ÔÚx¡ÝrµÄ¿Õ¼äÄÚ·Ö²¼Óз½ÏòÊúÖ±ÏòÏ¡¢´óСΪE=4¡Á105V/mµÄÔÈÇ¿µç³¡£®ÏÖÓÐÒ»ÖÊ×ÓÔ´´ÓOµãÏòÖ½ÃæÄڵĸ÷¸ö²»Í¬·½Ïò·¢ÉäÖÊ×Ó£¬ËÙÂʾùΪv=2.0¡Á106m/s£¬ÉèÖÊ×ÓÖÊÁ¿Îªm=1.6¡Á10-27kg£¨²»¼ÆÖÊ×ÓµÄÖØÁ¦£©£¬µçºÉq=1.6¡Á10-19C£®Çó
£¨1£©ÑØyÖáÕý·½ÏòÉäÈë´Å³¡µÄÖÊ×Óµ½´ïxÖáËùÐèµÄʱ¼ä£»
£¨2£©ÑØÓëxÖáÕý·½Ïò³É60¡ã½ÇÉäÈë´Å³¡µÄÖÊ×Óµ½´ïxÖáʱµÄλÖã®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬Õæ¿ÕÖÐÓÐÒÔO1ΪԲÐÄ£¬rΪ°ë¾¶µÄÔ²ÐÎÔÈÇ¿´Å³¡ÇøÓò£¬×ø±êÔ­µãOΪԲÐδų¡±ß½çÉϵÄÒ»µã£®´Å³¡µÄ´Å¸ÐӦǿ¶È´óСΪB£¬·½Ïò´¹Ö±ÓÚÖ½ÃæÏòÍ⣮x=rµÄÐéÏßÓÒ²à×ã¹»´óµÄ·¶Î§ÄÚÓз½ÏòÊúÖ±ÏòÏ¡¢´óСΪEµÄÔÈÇ¿µç³¡£®´ÓOµãÔÚÖ½ÃæÄÚÏò¸÷¸ö²»Í¬·½Ïò·¢ÉäËÙÂÊÏàͬµÄÖÊ×Ó£¬ÉèÖÊ×ÓÔڴų¡ÖеÄƫת°ë¾¶Ò²Îªr£¬ÒÑÖªÖÊ×ӵĵçºÉÁ¿Îªe£¬ÖÊÁ¿Îªm£®Çó£º
£¨1£©ÖÊ×ÓÉäÈë´Å³¡Ê±µÄËٶȴóС£»
£¨2£©Ëٶȷ½ÏòÑØyÖáÕý·½ÏòÉäÈë´Å³¡µÄÖÊ×Óµ½´ïxÖáËùÐèµÄʱ¼ä£»
£¨3£©Ëٶȷ½ÏòÓëyÖáÕý·½Ïò³É37¡ã½ÇÇÒÓëxÖáÕý·½Ïò³É127¡ã½ÇÉäÈë´Å³¡µÄÖÊ×Óµ½´ïxÖáʱµÄλÖÃ×ø±ê£®£¨ÒÑÖªsin37¡ã=0.6£¬cos37¡ã=0.8£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸