ÏÂÁÐÓйظßÖÐÎïÀíʵÑéµÄ˵·¨ÖУ¬ÕýÈ·µÄÊÇ
AC
AC

A£®¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨
B£®µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ220VµÄÖ±Á÷µç
C£®ÔÚÓôòµã¼ÆʱÆ÷¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÓÉÖ½´øÉϵÄһϵÁе㼣ȡ¼ÆÊýµã£¬¿ÉÇó³öÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËÙ¶È
D£®ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬±ØÐëÒªÓÃÌìƽ²â³öÏÂÂäÎïÌåµÄÖÊÁ¿£®
·ÖÎö£º¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨£¬µç»ð»¨¼ÆʱÆ÷ÓõĵçÔ´ÊÇ220V½»Á÷µç¶ø²»ÄÜÊÇÖ±Á÷µç£¬¸ù¾Ý
.
v
 
 
=
x
t
¿ÉÒÔÇó³öÈÎÒâÁ½µã¼äµÄƽ¾ùËٶȣ®
½â´ð£º½â£ºA¡¢ºÏÁ¦Óë·ÖÁ¦µÄ¹ØϵÊǵÈЧÌæ´ú¹Øϵ£¬¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±ÊµÑéÑéÖ¤µÄÊǺÏÁ¦ÓëÁ½·ÖÁ¦µÄ¹Øϵ£¬ËùÒÔ±¾ÊµÑéµÄ¿Æѧ·½·¨ÊǵÈЧÌæ´ú·¨£¬¹ÊAÕýÈ·£®
B¡¢µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ220VµÄ½»Á÷µç£¬¹ÊB´íÎó£®
C¡¢¸ù¾Ý
.
v
=
x
t
¿ÉµÃ£¬¿ÉÒÔÇó³öÖ½´øÉÏÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËٶȣ¬¹ÊCÕýÈ·£®
D¡¢ÑéÖ¤»úеÄÜÊغãʵÑéÐèÒªÑéÖ¤mgh=
1
2
mv
 
2
 
£¬ÒòÖÊÁ¿m¿ÉÒÔÏûÈ¥£¬ËùÒÔ±¾ÊµÑé²»ÐèÒªÓÃÌìƽ²âÁ¿ÖÊÁ¿£¬¹ÊD´íÎó£®
¹ÊÑ¡AC£®
µãÆÀ£ºÃ÷ȷÿ¸öʵÑéµÄʵÑéÔ­ÀíÊǽâ¾öʵÑéÎÊÌâµÄ¹Ø¼ü£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨2011?¹ã¶«ÈýÄ££©£¨Ò»£©
£¨1£©ÏÂÁÐÓйظßÖÐÎïÀíʵÑéµÄ˵·¨Öв»ÕýÈ·µÄÊÇ
D
D

A£®¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨
B£® µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ220VµÄ½»Á÷µç
C£® ÔÚÓôòµã¼ÆʱÆ÷¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÓÉÖ½´øÉϵÄһϵÁе㼣ȡ¼ÆÊýµã£¬¿ÉÇó³öÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËÙ¶È
D£® ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬±ØÐëÒªÓÃÌìƽ²â³öÏÂÂäÎïÌåµÄÖÊÁ¿
£¨2£©ÔÚʵÑéÊÒÀïΪÁËÑéÖ¤¶¯Á¿Êغ㶨ÂÉ£¬Ò»°ã²ÉÓÃÈçͼ1×°Öãº
¢ÙÈôÈëÉäСÇòÖÊÁ¿Îªm1£¬°ë¾¶Îªr1£»±»ÅöСÇòÖÊÁ¿Îªm2£¬°ë¾¶Îªr2£¬Ôò
C
C

A£®m1£¾m2  r1£¾r2         B£®m1£¾m2 r1£¼r2
C£®m1£¾m2  r1=r2         D£®m1£¼m2  r1=r2
¢ÚÉèÈëÉäСÇòµÄÖÊÁ¿Îªm1£¬±»ÅöСÇòµÄÖÊÁ¿Îªm2£¬ÔòÔÚʵÑéʱ£¬ËùµÃ¶¯Á¿Êغ㶨ÂɵÄÑéÖ¤±í´ïʽΪ£¨ÓÃ×°ÖÃͼ¼×ÖеÄ×Öĸ±íʾ£©
m1OP=m1OM+m2ON
m1OP=m1OM+m2ON
£»
£¨¶þ£©
¢ÙijͬѧҪ²âÁ¿Ò»³¤ÎªLµÄµç×èË¿µÄ×èÖµ£¬ËûÏÈʹÓöàÓõç±í¡Á1µ²²âÁ¿£¬¶àÓõç±íµÄÖ¸ÕëÈçͼ2Ëùʾ£¬Ôò´Ëʱ´Ó¶àÓõç±íÉ϶ÁµÃR=
6
6
¦¸£®ÓÃÂÝÐý²â΢Æ÷²âÁ¿¸Ãµç×èË¿Ö±¾¶Ê±£¬²âÁ¿½á¹ûÈçͼ3Ëùʾ£¬Ôò¸Ãµ¼ÏßµÄÖ±¾¶d=
0.903£¨0.902-0.906£©
0.903£¨0.902-0.906£©
mm£®

¢ÚΪÁËʹµç×èË¿µÄ×èÖµ²âÁ¿¸üΪ¾«È·£¬¸ÃͬѧÔÚʵÑéÊÒÖÐÕÒµ½ÁËÒÔϵç·Ԫ¼þ£º
A£®µçѹ±íV£¨Á¿³Ì3V¡¢ÄÚ×èԼΪ¼¸Ç§Å·£©   B£®µçÁ÷±íA£¨Á¿³Ì0.6A¡¢ÄÚ×èÔ¼µÈÓÚ1¦¸£©
C£®»¬¶¯±ä×èÆ÷R£¨×î´ó×èֵΪ10¦¸£©      D£®µçÔ´E£¨µç¶¯ÊÆ3V£¬ÄÚ×è²»¼Æ£©
E£®µç¼üºÍµ¼Ïß
ÇëÄã¸ù¾ÝËù¸ø¸÷µç·Ԫ¼þÉè¼ÆÊʺϵĵç·ͼ£®
¢ÛÈôij´Î²âÁ¿Ê±µçѹ±íµÄÖ¸ÕëÈçͼ4Ëùʾ£¬Ôò´Ëʱµçѹ±íµÄ¶ÁÊýU=
2.20
2.20
V
¸ù¾ÝÒÔÉÏʵÑéµç·²âµÃµÄµçÁ÷ºÍµçѹֵ·Ö±ðΪI¡¢U£¬Ôò¿ÉÒԵõ½¸Ãµç×èË¿µÄµç×èÂʵıí´ïʽ¦Ñ=
Ud2¦Ð
4IL
Ud2¦Ð
4IL
£¨½á¹ûÓÃU¡¢I¡¢d¡¢LµÈÊý¾Ý±íʾ£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2012?Ö£ÖÝÄ£Ä⣩ÏÂÁÐÓйظßÖÐÎïÀíʵÑéµÄ˵·¨ÖУ¬ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©ÏÂÁÐÓйظßÖÐÎïÀíʵÑéµÄÃèÊöÖУ¬ÕýÈ·µÄÊÇ£º
 
£®
A¡¢ÔÚ¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±µÄʵÑéÖУ¬À­ÏðƤ½îµÄϸÉþÒªÉÔ³¤£¬²¢ÇÒʵÑéʱҪʹµ¯»É²âÁ¦¼ÆÓëľ°åƽÃæƽÐУ¬Í¬Ê±±£Ö¤µ¯»ÉµÄÖáÏßÓëϸÉþÔÚͬһֱÏßÉÏ
B£®ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬±ØÐëÒªÓÃÌìƽ²â³öÏÂÂäÎïÌåµÄÖÊÁ¿
C£®ÔÚ¡°Ì½¾¿µ¯Á¦ºÍµ¯»ÉÉ쳤µÄ¹Øϵ¡±µÄʵÑéÖУ¬µ¯»É±ØÐëˮƽʹÓã¬ÒÔ¿Ë·þµ¯»ÉËùÊÜÖØÁ¦¶ÔʵÑéµÄÓ°Ïì
D¡¢ÔÚ¡°ÑéÖ¤¶¯Á¿Êغ㶨ÂÉ¡±ÊµÑéÖÐÈëÉäÇòµÄÖÊÁ¿Ó¦´óÓÚ±»ÅöÇòµÄÖÊÁ¿£¬ÈëÉäÇòÿ´ÎÓ¦´Óͬһ¸ß¶ÈÎÞ³õËٶȻ¬ÏÂ
£¨2£©ÓÃÌú¼Ų̈½«³¤Ä¾°åÇãб֧ÔÚˮƽ×ÀÃæÉÏ£¬×é³ÉÈçͼ¼×ËùʾװÖã¨Ê¾Òâͼ£©£¬²âÁ¿Ä¾¿éÑØбÃæÏ»¬µÄ¼ÓËٶȣ®ËùÌṩµÄÒÇÆ÷Óг¤Ä¾°å¡¢Ä¾¿é¡¢´òµã¼ÆʱÆ÷£¨º¬Ö½´ø£©¡¢Ñ§ÉúµçÔ´¡¢Ã׳ߡ¢Ìú¼Ų̈¼°µ¼Ïß¡¢¿ª¹ØµÈ£®Í¼ÒÒÊÇ´òµã¼ÆʱÆ÷´ò³öµÄÒ»ÌõÖ½´ø£¬Ö½´øÅÔ»¹¸ø³öÁË×îС¿Ì¶ÈΪ1mmµÄ¿Ì¶È³ß£¬¿Ì¶È³ßµÄÁãµãÓëOµã¶ÔÆ룮´òµã¼ÆʱÆ÷ËùÓý»Á÷µçÔ´µÄƵÂÊÊÇ50Hz£¬ÏàÁÚ¼ÆÊýµã¼ä»¹ÓÐËĸö´òµãδ±ê³ö£®
¢Ù¼ÆÊýµãCµ½OµãµÄ¾àÀëÊÇ
 
m£®
¢Ú¸ù¾ÝÖ½´ø¿ÉÒÔ¼ÆËã³öľ¿éÏ»¬µÄ¼ÓËÙ¶ÈaµÄ´óСÊÇ
 
m/s2£¨±£Áô3λÓÐЧÊý×Ö£©£®
¢ÛΪÁ˲ⶨľ¿éÓ볤ľ°å¼äµÄ¶¯Ä¦²ÁÒòÊý£¬ÀûÓÃÉÏÊöÆ÷²Ä»¹ÐèÒª²âÁ¿µÄÎïÀíÁ¿ÓУ¨Ö¸³öÎïÀíÁ¿µÄÃû³Æ£©
 
£®
¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÏÂÁÐÓйظßÖÐÎïÀíʵÑéµÄ˵·¨ÖУ¬ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢¡°ÑéÖ¤Á¦µÄƽÐÐËıßÐζ¨Ôò¡±ÊµÑé²ÉÓõĿÆѧ·½·¨ÊǵÈЧÌæ´ú·¨B¡¢µç»ð»¨´òµã¼ÆʱÆ÷µÄ¹¤×÷µçѹÊÇ220VµÄÖ±Á÷µçC¡¢ÔÚÓôòµã¼ÆʱÆ÷¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУ¬ÓÉÖ½´øÉϵÄһϵÁе㼣ȡ¼ÆÊýµã£¬¿ÉÇó³öÈÎÒâÁ½¸ö¼ÆÊýµãÖ®¼äµÄƽ¾ùËÙ¶ÈD¡¢ÔÚ¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑéÖУ¬±ØÐëÒªÓÃÌìƽ²â³öÏÂÂäÎïÌåµÄÖÊÁ¿

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸