Èçͼ£¨a£©ËùʾµÄÕæ¿Õ¹ÜÖУ¬µç×Ó´ÓµÆË¿K·¢³ö £¨³õËÙ²»¼Æ£©£¬¾­µçѹΪU1µÄ¼ÓËٵ糡¼ÓËÙºóÑØÖÐÐÄÏß½øÈëÁ½Æ½ÐнðÊô°åM£¬N¼äµÄÔÈÇ¿µç³¡ÖУ¬Í¨¹ýµç³¡ºó´òµ½Ó«¹âÆÁÉϵÄPµã´¦£¬ÉèM£¬N°å¼äµçѹΪU2£¬Á½°å¾àÀëΪd£¬°å³¤ÎªLl£¬°åÓҶ˵½Ó«¹âÆÁµÄ¾àÀëΪL2£¬ÒÑÖªU1=576V£¬U2=168V£¬L1=6cm£¬d=3cm£¬L2=21cm£¬µç×ӵıȺɣ¬Çó£º
£¨1£©µç×ÓÀ뿪ƫתµç³¡Ê±µÄÆ«½Ç¦È£¨¼´µç×ÓÀ뿪ƫתµç³¡Ê±ËÙ¶ÈÓë½øÈëƫתµç³¡Ê±Ëٶȵļнǣ©£®
£¨2£©µç×Ó´òµ½Ó«¹âÆÁÉϵÄλÖû§Æ«ÀëÓ«¹âÆÁÖÐÐÄOµÄ¾àÀëOP£®
£¨3£©Èô³·È¥M¡¢N¼äµÄµçѹU2£¬¶øÔÚÁ½Æ½ÐаåÖеÄÔ²ÐÎÇøÓòÄÚ£¨ÈçͼbËùʾ£©¼ÓÒ»´Å¸ÐӦǿ¶ÈΪB=0.001TµÄÔÈÇ¿´Å³¡£¬Ô²ÐÎÇøÓòµÄÖÐÐÄÕýºÃ¾ÍÊÇÁ½Æ½Ðаå¿Õ¼ä²¿·ÖµÄÖÐÐÄ£®ÒªÊ¹µç×Óͨ¹ý´Å³¡ºóÈÔ´òÔÚÓ«¹âÆÁÉϵÄPµã´¦£¬Ô²ÐÎÇøÓòµÄ°ë¾¶rΪ¶àÉÙ£¿£¨½á¹ûÖпɺ¬Óз´Èý½Çº¯Êý£©

¡¾´ð°¸¡¿·ÖÎö£º£¨1£©¸ù¾Ý¶¯Äܶ¨ÀíÓëÅ£¶ÙµÚ¶þ¶¨ÂÉ£¬½áºÏÈý½Çº¯Êý£¬¼´¿ÉÇó½â£»
£¨2£©µç×Ó×öÀàƽÅ×Ô˶¯£¬¸ù¾ÝÔ˶¯µÄ·Ö½â£¬½áºÏÔ˶¯Ñ§¹«Ê½Ó뼸ºÎ¹Øϵ£¬¼´¿ÉÇó½â£®
½â´ð£º½â£º£¨1£©µç×ÓÔÚ¼ÓËٵ糡ÖÐÓУº
³öƫתµç³¡Ê±ÓУ¬  
Ô˶¯Ñ§¹«Ê½ v¡Í=at 
Å£¶ÙµÚ¶þ¶¨ÂÉ  
ÔòÓÐ   
¼´  
£¨2£©µç×Ó¸Õ³öƫתµç³¡Ê±µÄ²àλÒÆΪ£º=   
ÓÉͼʾ¿ÉÖª£¬PM=L2tan¦È 
´úÈëÊý¾Ý£¬½âµÃ£ºOP=PM+y=7cm
£¨3£©µç×ÓÔڴų¡ÖÐʱ£¬ÂåÂ××ÈÁ¦ÌṩÏòÐÄÁ¦£¬ÔòÓÐ
ÓÉͼ¿ÉÖª£¬

´ð£º£¨1£©µç×ÓÀ뿪ƫתµç³¡Ê±µÄÆ«½Ç¼´ £®
£¨2£©µç×Ó´òµ½Ó«¹âÆÁÉϵÄλÖû§Æ«ÀëÓ«¹âÆÁÖÐÐÄOµÄ¾àÀë7cm£®
£¨3£©ÒªÊ¹µç×Óͨ¹ý´Å³¡ºóÈÔ´òÔÚÓ«¹âÆÁÉϵÄPµã´¦£¬Ô²ÐÎÇøÓòµÄ°ë¾¶rΪ£®
µãÆÀ£º¿¼²é¶¯Äܶ¨ÀíÓëÅ£¶ÙµÚ¶þ¶¨ÂɵÄ×ÛºÏÔËÓã¬ÕÆÎÕÔ˶¯µÄ·Ö½â·½·¨£¬Àí½âÔ˶¯Ñ§¹«Ê½Ó뼸ºÎ¹ØϵÔÚÌâÖеÄÓ¦Óã®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©Èçͼ£¨1£©Ëùʾ£¬Ò»¸ùˮƽÕŽôµ¯ÐÔ³¤ÉþÉÏÓеȼä¾àµÄO¡¢P¡¢QÖʵ㣬ÏàÁÚÁ½Öʵã¼ä¾àÀëΪ1.0m£®t=0ʱ¿ÌOÖʵã´ÓƽºâλÖÿªÊ¼ÑØyÖá·½ÏòÕñ¶¯£¬²¢²úÉúÑØxÖáÕý·½Ïò´«²¥µÄ²¨£¬OÖʵãµÄÕñ¶¯Í¼ÏóÈçͼ£¨2£©Ëùʾ£®µ±OÖʵãµÚÒ»´Î´ïµ½ÕýÏò×î´óλÒÆʱ£¬PÖʵã¸Õ¿ªÊ¼Õñ¶¯£¬Ôò
AC
AC

A£®ÖʵãQµÄÆðÕñ·½ÏòΪyÖáÕýÏò
B£®P¡¢QÁ½ÖʵãÖ®¼äµÄ¾àÀëΪ°ë¸ö²¨³¤
C£®ÕâÁв¨´«²¥µÄËÙ¶ÈΪ1.0m/s
D£®ÔÚÒ»¸öÖÜÆÚÄÚ£¬ÖʵãOͨ¹ýµÄ·³ÌΪ0.4m
£¨2£©Èçͼ£¨3£©Ëùʾ£¬Õæ¿ÕÖÐÓÐһϱíÃæ¶Æ·´ÉäĤµÄƽÐв£Á§×©£¬ÆäÕÛÉäÂÊn=
2
£®Ò»Êøµ¥É«¹âÓë½çÃæ³É¦È=45¡ã½ÇбÉäµ½²£Á§×©±íÃæÉÏ£¬×îºóÔÚ²£Á§×©µÄÓÒ²àÃæÊúÖ±¹âÆÁÉϳöÏÖÁËÁ½¸ö¹âµãAºÍB£¬AºÍBÏà¾àh=2.0cm£®ÒÑÖª¹âÔÚÕæ¿ÕÖеĴ«²¥ËÙ¶Èc=3.0¡Á108m/s£®ÊÔÇó£º?
¢Ù¸Ãµ¥É«¹âÔÚ²£Á§×©ÖеĴ«²¥Ëٶȣ®?
¢Ú²£Á§×©µÄºñ¶Èd£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ£¨¼×£©Ëùʾ£¬A¡¢BÊÇÕæ¿ÕÖÐƽÐзÅÖõĽðÊô°å£¬¼ÓÉϵçѹºó£¬ËüÃÇÖ®¼äµÄµç³¡¿ÉÊÓΪÔÈÇ¿µç³¡£¬A¡¢BÁ½°å¼ä¾àÀëd=15cm£®½ñÔÚA¡¢BÁ½°å¼ä¼ÓÉÏÈçͼ£¨ÒÒ£©ËùʾµÄ½»±äµçѹ£¬ÖÜÆÚΪT=1.0¡Á10-6s£®t=0ʱ£¬A°åµçÊƱÈB°åµçÊƸߣ¬µçÊƲîU0=1080V£¬Ò»¸öºÉÖʱÈ
qm
=1.0¡Á108C/KgµÄ´ø¸ºµçµÄÁ£×ÓÔÚt=0µÄʱ¿Ì´ÓB°å¸½½üÓɾ²Ö¹¿ªÊ¼Ô˶¯£¬²»¼ÆÖØÁ¦£¬ÎÊ£º
£¨1£©µ±Á£×ÓµÄλÒÆΪ¶à´óʱ£¬Á£×ÓµÄËٶȵÚÒ»´Î´ïµ½×î´ó£¿×î´óËÙ¶ÈΪ¶à´ó£¿
£¨2£©Á£×Óײ»÷¼«°åʱµÄËٶȴóС£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ£¨a£©Ëùʾ£¬Õæ¿ÕÖа뾶ΪRµÄÔ²ÐÎÇøÓòÄÚ´æÔÚÔÈÇ¿´Å³¡£¬´Å³¡·½Ïò´¹Ö±Ö½ÃæÏòÍ⣬´Å³¡ÓÒ²àÓÐÒ»¶ÔƽÐнðÊô°åMºÍN£¬Á½°å¼äµÄ¾àÀëΪR£¬°å³¤Îª2R£¬°åµÄÖÐÐÄÏßO1O2Óë´Å³¡µÄÔ²ÐÄOÔÚͬһֱÏßÉÏ£¬ÓÐÒ»µçºÉÁ¿Îªq¡¢ÖÊÁ¿ÎªmµÄ´øÕýµçµÄÁ£×Ó£¬ÒÔËÙ¶Èv0ÓÉÔ²ÖÜÉϵÄaµãÑØ´¹Ö±Óڰ뾶OO1²¢Ö¸ÏòÔ²ÐÄOµÄ·½Ïò½øÈë´Å³¡£¬µ±´ÓÔ²ÖÜÉϵÄO1µãÑØOO1·½Ïò·É³ö´Å³¡Ê±£¬¸ø³öM¡¢N°å¼ÓÉÏÈçͼ£¨b£©Ëùʾµçѹ£¬×îºóÁ£×Ó¸ÕºÃÒÔƽÐÐÓÚN°åµÄËٶȣ¬´ÓN°åµÄ±ßÔµ·É³ö£¨²»¼ÆÁ£×ÓÖØÁ¦£©£®Çó£º
£¨1£©´Å³¡µÄ´Å¸ÐӦǿ¶ÈB£»
£¨2£©½»±äµçѹµÄÖÜÆÚTºÍµçѹU0µÄÖµ£®
¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼK28£­6ËùʾµÄÕæ¿Õ¿Õ¼äÖУ¬½öÔÚÕý·½ÌåÖеĺڵ㴦´æÔÚ×ŵçºÉÁ¿´óСÏàµÈµÄµãµçºÉ£¬ÔòͼÖÐa¡¢bÁ½µãµç³¡Ç¿¶ÈºÍµçÊƾùÏàͬµÄÊÇ(¡¡¡¡)

A¡¡¡¡¡¡¡¡¡¡¡¡B¡¡¡¡¡¡¡¡¡¡¡¡C¡¡¡¡¡¡¡¡¡¡¡¡D¡¡¡¡

ͼK28£­6

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

Èçͼ£¨a£©Ëùʾ£¬Õæ¿ÕÖа뾶ΪRµÄÔ²ÐÎÇøÓòÄÚ´æÔÚÔÈÇ¿´Å³¡£¬´Å³¡·½Ïò´¹Ö±Ö½ÃæÏòÍ⣬´Å³¡ÓÒ²àÓÐÒ»¶ÔƽÐнðÊô°åMºÍN£¬Á½°å¼ä¾àÀëΪR£¬°å³¤Îª2R£¬°åµÄÖÐÐÄÏßO1O2Óë´Å³¡µÄÔ²ÐÄOÔÚͬһֱÏßÉÏ£¬ÓÐÒ»µçºÉÁ¿Îªq¡¢ÖÊÁ¿ÎªmµÄ´øÕýµçµÄÁ£×Ó£¬ÒÔËÙ¶Èv0ÓÉÔ²ÖÜÉϵÄaµãÑØ´¹Ö±Óڰ뾶OO1²¢Ö¸ÏòÔ²ÐÄOµÄ·½Ïò½øÈë´Å³¡,µ±´ÓÔ²ÖÜÉϵÄO1µãÑØOO1·½Ïò·É³ö´Å³¡Ê±£¬¸øM¡¢N°å¼ÓÉÏÈçͼ£¨b£©Ëùʾµçѹ£¬×îºóÁ£×Ó¸ÕºÃÒÔƽÐÐÓÚN°åµÄËٶȣ¬´ÓN°åµÄ±ßÔµ·É³ö£¨²»¼ÆÁ£×ÓÖØÁ¦£©¡£Çó£º

£¨a£©                                  (b)

£¨1£©´Å³¡µÄ´Å¸ÐӦǿ¶ÈB£»

£¨2£©½»±äµçѹµÄÖÜÆÚTºÍµçѹU0µÄÖµ¡£

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸