ÔÚʵÑé¡°Óôòµã¼ÆʱÆ÷²âËٶȡ±ÖУ¬È¡ÏÂÖ½´ø·¢ÏÖÒ»ÕÅÖ½´øaÉÏ´òµÄµã·Ç³£ÃÜ£¬ÁíÒ»ÕÅÖ½´øb´òµÄµã±È½ÏÏ¡£¬¹ØÓÚÕâÁ½ÕÅÖ½´øµÄÓйØ˵·¨ÖУ¬ÕýÈ·µÄ˵·¨ÊÇ(a¡¢bÖ½´øÒ»Ñù³¤)
¢Ù´òµã¼ÆʱÆ÷ÔÚÖ½´øaÉÏ´òµãµÄʱ¼ä±ÈÔÚÖ½´øbÉÏ´òµãµÄʱ¼ä³¤Ò»Ð©
¢Ú´òµã¼ÆʱÆ÷ÔÚÖ½´øbÉÏ´òµãµÄʱ¼ä±ÈÔÚÖ½´øaÉÏ´òµãµÄʱ¼ä³¤Ò»Ð©
¢ÛaÖ½´øÔ˶¯ËÙ¶ÈСһЩ£¬bÖ½´øÔ˶¯ËٶȴóһЩ
¢ÜbÖ½´øÔ˶¯ËÙ¶ÈСһЩ£¬aÖ½´øÔ˶¯ËٶȴóһЩ


  1. A.
    ¢Ù¢Û
  2. B.
    ¢Ú¢Ü
  3. C.
    ¢Ù¢Ü
  4. D.
    ¢Ú¢Û
A
Ò»Ñù³¤µÄÖ½´ø£¬aÉϵãÃܼ¯£¬bÉÏÏ¡Ê裬˵Ã÷aÉϵã¶à£¬¹Êʱ¼ä³¤£¬ËÙ¶ÈС£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

µç»ð»¨´òµã¼ÆʱÆ÷ʹÓÃ
½»Á÷
½»Á÷
µçÔ´£¨Ìî¡°Ö±Á÷¡±»ò¡°½»Á÷¡±£©£¬¹¤×÷µçѹ
220
220
V£®ÏÂͼÊÇÔÚij´ÎÓôòµã¼ÆʱÆ÷²â¶¨ÒÑÖª×÷ÔȱäËÙÖ±ÏßÔ˶¯ÎïÌåµÄ¼ÓËÙ¶ÈʵÑéÖУ¬Ëù»ñµÃµÄÖ½´ø£®Ñ¡ºÃ0µãºó£¬Ã¿5¸ö¼ä¸ôµãÈ¡Ò»¸ö¼ÆÊýµã£¨ÖмäµÄ4¸öµãͼÖÐδ»­³ö£©£¬ÒÀ´ÎÈ¡µÃ1¡¢2¡¢3¡¢4¡¢¸÷µã£¬²âµÃµÄÊý¾ÝÈçͼËùʾ£®ÔòÖ½´øµÄ¼ÓËٶȴóСΪ
0.8
0.8
m/s2£¬¡°1¡±ÕâÒ»µãµÄËٶȴóСΪ
0.46
0.46
m/s£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2005?Õ¢±±ÇøÄ£Ä⣩ijͬѧ×ö¡°²âÔȱäËÙÖ±ÏßÔ˶¯¼ÓËٶȡ±µÄʵÑ飬Óôòµã¼ÆʱÆ÷µÃµ½Ò»ÌõÖ½´ø£®¸ÃͬѧÔÚÖ½´øÉϱêÁËA¡¢B¡¢C¡¢D¡¢EÎå¸ö¼ÆÊýµã£¬ÇÒÏàÁڵļÆÊýµãÖ®¼ä¶¼ÊÇÎå¸ö¼Æʱ¼ä¸ô£®¾­²âÁ¿ºóµÃµ½¸÷µãÖ®¼äµÄ¾àÀëΪAB=8.5ÀåÃ×£¬AC=22ÀåÃ×£¬AD=40.5ÀåÃ×£¬AE=64ÀåÃ×£¬Èô´òµã¼ÆʱÆ÷µÄ´òµãƵÂÊÊÇ50ºÕ×È£¬¿É²âµÃÎïÌåµÄ¼ÓËÙ¶ÈΪ
5
5
Ã×/Ãë2£¬ÎïÌå´Ó¿ªÊ¼Ô˶¯µ½¼ÆʱÆ÷´òAµãµÄʱ¼äÊÇ
0.12
0.12
Ã룮

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

ʵÑéÌ⣺
£¨1£©¶Á³öÏÂÃæͼ1ÖÐÒÇÆ÷µÄ¶ÁÊý£¬Óα꿨³ß¶ÁÊýΪ
 
mm£¬ÂÝÐý²â΢Æ÷¶ÁÊýΪ
 
cm£®
£¨2£©Èçͼ2ËùʾװÖã¬ÔÚбÃæÌåµÄбÃæÉÏ£¬Ò»ÖÊÁ¿Îª1kgµÄÎï¿éºóÃæ¹Ì¶¨Ò»Ìõͨ¹ý´òµã¼ÆʱÆ÷µÄÖ½´ø£®ÏÈ´òµã£¬È»ºóÈÃÎï¿é´Ó¾²Ö¹¿ªÊ¼ÑØбÃæÔȼÓËÙÏ»¬£¬µÃµ½Ò»ÌõÈçͼËùʾµÄÖ½´ø£®OµãΪ´òµãµÄµÚÒ»¸öµã£¬A¡¢B¡¢C¡¢D¡¢E¡¢F¡¢HÊǼÆÊýµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸öµãûÓбê³ö£¬OA=17.65cm¡¢AB=11.81cm¡¢BC=14.79cm¡¢CD=17.80cm¡¢DE=20.81cm¡¢EF=23.80cm¡¢FH=26.79cm£¬¸ù¾ÝÒÔÉÏÊý¾Ý½øÐÐÏÂÁд¦Àí£®¾«Ó¢¼Ò½ÌÍø
Îï¿éÔȼÓËÙÏ»¬µÄ¼ÓËÙ¶ÈÊÇ
 
 m/s2£¬ÎïÌåËùÊܵĺÏÍâÁ¦ÊÇ
 
 N£®£¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
£¨3£©¼×ͬѧʹÓÃÈçͼ3ËùʾµÄ×°ÖÃÀ´ÑéÖ¤¡°»úеÄÜÊغ㶨ÂÉ¡±£®
¢ÙÏÂÃæÊDzÙ×÷²½Ö裺
a£®°´Í¼1°²×°Æ÷²Ä£»
b£®ËÉ¿ªÌú¼Ð£¬Ê¹ÖØÎï´ø¶¯Ö½´øÏÂÂ䣻
c£®½Óͨµç»ð»¨¼ÆʱÆ÷µçÔ´£¬Ê¹¼ÆʱÆ÷¿ªÊ¼¹¤×÷£»
d£®½øÐÐÊý¾Ý´¦Àí£®
°ÑÉÏÊö±ØÒªµÄ²Ù×÷²½Öè°´ÕýÈ·µÄ˳ÐòÅÅÁÐ
 
£®
¢Ú±¸ÓÐÈçÏÂÆ÷²Ä£ºA£®´òµã¼ÆʱÆ÷£»B£®Ö±Á÷µçÔ´£»C£®½»Á÷µçÔ´£»D£®Ö½´ø£»
E£®´ø¼Ð×ÓµÄÖØÎF£®Ãë±í£»G£®¿Ì¶È³ß£»H£®µ¼Ïߣ»I£®Ìú¼Ų̈£®
ÆäÖиÃʵÑé²»ÐèÒªµÄÆ÷²ÄÊÇ
 
£¨Ìî×Öĸ´úºÅ£©£®?
¢ÛÔÚʵÑéÖУ¬´òµã¼ÆʱÆ÷ËùÓõçԴƵÂÊΪ50Hz£¬ÊµÑéÒªÇó´òµã¼ÆʱÆ÷ÔÚ´òÍêµÚÒ»¸öµãʱÊÍ·ÅÖ½´ø£¬¼×¡¢ÒÒ¡¢±ûÈý¸öѧÉú·Ö±ðÓÃͬһװÖø÷´ò³öÒ»ÌõÖ½´ø£¬Á¿³ö¸÷Ö½´øÉϵÚ1¡¢2Á½µã¼äµÄ¾àÀë·Ö±ðΪ0.48cm£¬0.19cmºÍ0.18cm£®¿É¼ûÆäÖп϶¨ÓÐÒ»¸öѧÉúÔÚ²Ù×÷ÉÏÓдíÎ󣬴íÎó²Ù×÷µÄͬѧÊÇ
 
£¬Æä´íÎóµÄ²Ù×÷ÊÇ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

µç´Å´òµã¼ÆʱÆ÷ºÍµç»ð»¨¼ÆʱÆ÷¶¼ÊÇʹÓÃ
 
£¨½»Á÷£»Ö±Á÷£©µçÔ´µÄ¼ÆʱÒÇÆ÷£¬µ±µçԴƵÂÊÊÇ50Hzʱ£¬Ã¿5¸öÁ¬ÐøµãÈ¡1¸ö¼ÆÊýµã£¬±êÒÔ1¡¢2¡¢3¡­ÄÇôÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼äµÄʱ¼äΪ
 
£¨0.08£¬0.1£©s£®Ä³Í¬Ñ§ÔÚ×ö¡¶Óôòµã¼ÆʱÆ÷²âËٶȡ·µÄʵÑéʱ£¬ÓÃÊÖÀ­¶¯Ö½´ø£¬ËùµÃÖ½´øÉϵĵ㼣·Ö²¼²»¾ùÔÈ£¬Ôòµã¼£Ãܼ¯µÄµØ·½±íʾֽ´øÔ˶¯µÄËÙ¶È
 
£¨Ìî¡°½Ï´ó¡±»ò¡°½ÏС¡±£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøͼ1ÊÇijÑо¿ÕßÔÚµØÃæÉÏÓôòµã¼ÆʱÆ÷Ñо¿×ÔÓÉÂäÌåÔ˶¯Ê±´ò³öµÄÒ»ÌõÖ½´ø£¬¼ÙÉèʹÓÃÏàͬµÄÉ豸ÔÚÔÂÇò±íÃæ×öͬÑùµÄʵÑ飬´ò³öµÄÖ½´ø¿ÉÄÜÊÇÑ¡ÏîͼÖеģ¨Èçͼ2£¬ÒÑÖªÖ½´øµÄÉ϶ËÓëÖØÎïÏàÁ¬£¬ÔÂÇò±íÃæµÄÖØÁ¦¼ÓËٶȴóԼΪµØÇò±íÃæµÄ
1
6
£©£¨¡¡¡¡£©
A¡¢¾«Ó¢¼Ò½ÌÍø
B¡¢¾«Ó¢¼Ò½ÌÍø
C¡¢¾«Ó¢¼Ò½ÌÍø
D¡¢¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸