ÌâÄ¿ÄÚÈÝ

¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦µÄ¹Øϵ¡±ÊµÑé×°ÖÃÈçÌâͼËùʾ¡£

1.Ϊ¼õСʵÑéÎó²î£¬Å̺ÍíÀÂëµÄÖÊÁ¿Ó¦±ÈС³µµÄÖÊÁ¿¡¡¡¡£¨Ñ¡ÌС¡±»ò¡°´ó¡±£©µÃ¶à¡£

2.Ìâ25¡ª2ͼΪijͬѧÔÚʵÑéÖдò³öµÄÒ»ÌõÖ½´ø£¬¼ÆʱÆ÷´òµãµÄʱ¼ä¼ä¸ôΪ0.02s¡£Ëû´Ó±È½ÏÇåÎúµÄµãÆð£¬Ã¿Îå¸öµãÈ¡Ò»¸ö¼ÆÊýµã£¬ÔòÏàÁÚÁ½¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôΪ¡¡¡¡s¡£ÎªÁËÓÉv-tͼÏóÇó³öС³µµÄ¼ÓËٶȣ¬ËûÁ¿³öÏàÁÚÁ½¼ÆÊýµã¼äµÄ¾àÀ룬·Ö±ðÇó³ö´ò¸÷¼ÆÊýµãʱС³µµÄËٶȡ£ÆäÖдò¼ÆÊýµã3ʱС³µµÄËÙ¶ÈΪ¡¡¡¡m/s¡££¨±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

3.¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑé×°ÖÃÈçͼËùʾ£¬ÊµÑéÖз¢ÏÖÖØÎïÔö¼ÓµÄ¶¯ÄÜÂÔСÓÚ¼õÉÙµÄÖØÁ¦ÊÆÄÜ£¬ÆäÖ÷ÒªÔ­ÒòÊÇ

A£®ÖØÎïµÄÖÊÁ¿¹ý´ó

B£®ÖØÎïµÄÌå»ý¹ýС

C£®µçÔ´µÄµçѹƫµÍ

D£®ÖØÎï¼°Ö½´øÔÚÏÂÂäʱÊܵ½×èÁ¦

 

 

1.С

2.0.1   0.46

3.D

½âÎö:ÂÔ

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
I¡¢ÔÚ¡°Óõ¥°Ú²âÖØÁ¦¼ÓËٶȡ±µÄʵÑéÖУ¬ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ
 

A£®ÔÚ×é×°µ¥°Úʱ£¬ÈÃϸÏßµÄÒ»¶Ë´©¹ý°ÚÇòµÄС¿×£¬È»ºó£¬´òÒ»¸ö±ÈС¿×´óµÄÏ߽ᣬÏßµÄÁí Ò»¶ËÓÃÌú¼Ð¹Ì¶¨ÔÚÌú¼Ų̈ÉÏ£¬ÕâÑù×öÊÇΪÁ˱£Ö¤°ÚÇòÔÚͬһÊúֱƽÃæÄÚ°Ú¶¯£¬²»ÐγÉԲ׶°Ú
B£®ÔÚ×é×°ºÃµ¥°Úºó£¬ÈðÚÇò×ÔÓÉÏ´¹£¬Èç¹ûÓÃÃ׳ßÁ¿³öÐüµãµ½°ÚÇòµÄ×îµÍ¶ËµÄ³¤¶ÈΪl£¬ÓÃÂÝÐý²â΢Æ÷²â³ö°ÚÇòµÄÖ±¾¶Îªd£¬ÄÇô£¬µ¥°ÚµÄ°Ú³¤Îªl+
d
2
£®
C£®ÔڼǼµ¥°ÚµÄ°Ú¶¯´ÎÊýʱ£¬ÊÇ´Ó°ÚÇòͨ¹ýƽºâλÖÿªÊ¼¼Æ_£¬¼ÇÏ°ÚÇòÿ´ÎÑØͬһ·½Ïòͨ¹ýƽºâλÖõĴÎÊýn£¬Í¬Ê±ÓÃÍ£±í²â³öËùÓõÄʱ¼ät£¬ÄÇô£¬µ¥°ÚµÄÖÜÆÚΪ
t
n

D£®ÔڼǼµ¥°ÚµÄ°Ú¶¯´ÎÊýʱ£¬ÊÇ´Ó°ÚÇòͨ¹ýƽºâλÖÿªÊ¼¼Æʱ£¬Í¬Ê±½«´Ë´Îͨ¹ý×îµÍµã ¼ÇΪµÚÒ»´Î£¬¼ÇÏ°ÚÇòÿ´ÎÑØͬһ·½Ïòͨ¹ýƽºâλÖõĴÎÊýn£¬ÓÃÍ£±í²â³öËùÓõÄʱ¼ät£¬ÄÇô£¬µ¥°ÚµÄÖÜÆÚΪ
2t
n-1

II¡¢Èçͼ1Ëùʾ£¬ÊÇijʵÑéС×éÓùâµç¼ÆʱÆ÷£¨Í¼ÖÐδ»­³ö£©£¬À´¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Ø Ïµ¡±ºÍ¡°Ñо¿ºÏÍâÁ¦×ö¹¦ºÍ¶¯Äܱ仯µÄ¹Øϵ¡±µÄʵÑé ×°ÖÃͼ£®
£¨1£©ÔÚÕâÁ½¸öʵÑéÖУ¬¹ØÓÚ¡°Æ½ºâĦ²ÁÁ¦¡±µÄ˵ ·¨ÖÐÕýÈ·µÄÊÇ
 
£®
A£®Æ½ºâĦ²ÁÁ¦ºó£¬Èç¹û¸Ä±äС³µ»òíÀÂëÅÌÖÐíÀÂëµÄÖÊÁ¿£¬ÐèÒªÖØÐÂƽºâĦ²ÁÁ¦
B£®Æ½ºâĦ²ÁÁ¦µÄʵÖÊÊÇС³µµÄÖØÁ¦ÑØľ°å·½ÏòµÄ·ÖÁ¦ÓëС³µºÍÖ½´øËùÊܵÄĦ²ÁÁ¦Æ½ºâ
C£®Æ½ºâĦ²ÁÁ¦Òª´ïµ½µÄ±ê×¼ÊÇ£ºÔÚíÀÂëÅ̺ÍíÀÂëµÄÇ£ÒýÏ£¬Ð¡³µ´ø¶¯Ö½´ø´Ó³¤Ä¾°åµÄÒ» ¶ËÏòÓж¨»¬ÂÖµÄÁíÒ»¶ËÔÈËÙ»¬ÏÂ
D£®³·µôíÀÂëÅ̺ÍϸÉþ£¬ÈôС³µÍÏ×ÅÖ½´øÑس¤Ä¾°å»¬ÏÂʱ£¬´òµã¼ÆʱÆ÷ÔÚÖ½´øÉÏ´ò³öµãµÄ ¼ä¾àÊǾùÔȵģ¬¾ÍóëÍê³ÉÁË¡°Æ½ºâĦ²ÁÁ¦¡±
£¨2£©Èçͼ2Ëùʾ£¬ÊÇÓÃÀ´¡°Ì½¾¿¼ÓËÙ¶ÈÓëÁ¦¡¢ÖÊÁ¿µÄ¹Øϵ¡±µÄ ÊµÑé×°ÖüòÒ×·Å´óʾÒâͼͼÖÐMNÊÇˮƽ×ÀÃ棬PQΪ³¤Ä¾ °å£¬¡°1¡±ºÍ¡°2¡±Êǹ̶¨ÔÚ³¤Ä¾°åÉÏÊʵ±Î»ÖõÄÁ½¸ö¹âµçÃÅ£¨ÓëÖ®Á¬½ÓµÄÁ½¸ö¹âµç¼ÆʱÆ÷ûÓл­³ö£©£¬ËüÃÇÖ®¼äµÄ¾àÀëΪ 0.50m£®ÔÚ°²×°ºÃʵÑé×°Öú󣬽«Ð¡³µA·ÅÔÚ¹âµçÃÅ¡°1¡±µÄÉÏ ·½£¬Ê¹ËüÔÚÉþ×ÓÇ£ÒýÁ¦µÄ×÷ÓÃÏ£¬´Ó¾²Ö¹¿ªÊ¼Ñس¤Ä¾°å×öÔȼÓËÙÖ±ÏßÔ˶¯£¬²âµÃС³µAͨ¹ý¹âµçÃÅ¡°1¡±µÄʱ¼äΪ0.20s£¬Í¨¹ý¹âµçÃÅ¡°2¡±µÄʱ¼äΪ0.1Os£®Ôò£º
¢ÙÈçͼ3Ëùʾ£¬ÊÇС³µÉϵĵ²¹âƬµÄ¿í¶ÈÓÃÓα꿨³ß²âµÃµÄʾÒâ Í¼£®ÓÉͼ¿ÉÖª£¬µ²¹âƬµÄ¿í¶ÈΪ
 
mm£®
¾«Ó¢¼Ò½ÌÍø¾«Ó¢¼Ò½ÌÍø
¢ÚС³µÍ¨¹ý¹âµçÃÅ¡°2¡±µÄËٶȴóСΪ
 
m/s£¨±£Áô¶þλÓÐЧÊý×Ö£©£®
¢ÛС³µµÄ¼ÓËٶȴóСΪ
 
m/s2£¨±£Áô¶þλÓÐЧÊý×Ö£©£®
¢ÜÔÚ¸ÃʵÑéÖУ¬Èç¹ûС³µ¼°³µÉϵÄíÀÂëµÄ×ÜÖÊÁ¿ÎªM£¬íÀÂëÅ̺ÍíÀÂëµÄ×ÜÖÊÁ¿Îªm£¬ÄǠô£¬ÏÂÁÐͼÏóÖв»¿ÉÄܳöÏÖµÄÊÇ
 
£®
¾«Ó¢¼Ò½ÌÍø
£¨3£©ÈçͼËùʾ£¬ÊÇÔÚ¡°Ñо¿ºÏÍâÁ¦×ö¹¦ºÍ¶¯Äܱ仯µÄ¹Øϵ¡±µÄʵÑéÖУ¬µÃµ½µÄÒ»ÌõÖ½´ø£¬Æä ÖУ¬OΪÆðʼµã£¬A¡¢B¡¢C¡¢D¡¢EÒÀ´ÎΪÏàÁڵļÆÊýµã£¬ÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼ä»¹ÓÐn¸öµãδ±ê³ö£®Èç¹û´òµã¼ÆʱÆ÷ʹÓõĽ»Á÷µçµÄƵÂÊΪf£¬Ð¡³µºÍ íÀÂëµÄ×ÜÖÊÁ¿ÎªM£¬íÀÂëÅ̺ÍíÀÂëµÄ×ÜÖÊÁ¿Îªm£¬ÄÇô£¬ÔÚÂú×ãʵÑéÒªÇóµÄÌõ¼þÇé¿öÏ£¬ÐèҪ̽¾¿µÄ±í´ïʽÊÇ
 
£¨ÓÃÌâÖкÍͼÖеÄ×Öĸ±íʾ£©£®
£¨1£©Ò»Ð¡×éµÄͬѧÓÃÈçͼ¼×ËùʾװÖÃ×ö¡°Ì½¾¿ÎïÌåÖÊÁ¿Ò»¶¨Ê±£¬¼ÓËÙ¶ÈÓëÁ¦µÄ¹Øϵ¡±ÊµÑ飮
¢ÙÏÂÁÐ˵·¨ÕýÈ·µÄÓÐ
 
£®
A£®Æ½ºâĦ²ÁÁ¦Ê±£¬ÓÃϸÏßÒ»¶Ë¹Ò¿ÕíÀÂëÅÌ£¬ÁíÒ»¶ËÓëС³µÏàÁ¬£¬½«Ä¾°åÊʵ±Çãб£¬Ê¹Ð¡³µÔÚľ°åÉϽüËÆ×öÔÈËÙÖ±ÏßÔ˶¯
B£®Ã¿´Î¸Ä±äíÀÂë¼°íÀÂëÅÌ×ÜÖÊÁ¿Ö®ºó£¬Ó¦ÖØÐÂƽºâĦ²ÁÁ¦
C£®Ó¦ÈÃíÀÂë¼°íÀÂëÅÌ×ÜÖÊÁ¿Ô¶´óÓÚС³µ¼°ÀïÃæ¹³ÂëµÄ×ÜÖÊÁ¿
D£®¿ÉÒÔ½üËÆÈÏΪС³µÊܵ½µÄÀ­Á¦µÈÓÚíÀÂë¼°íÀÂëÅ̵ÄÖØÁ¦
¢ÚÒÒͼΪʵÑéÖа´¹æ·¶²Ù×÷´ò³öµÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£®´Ó±È½ÏÇåÎúµÄµã¼£Æð£¬ÔÚÖ½´ø Éϱê³öÁËÁ¬ÐøµÄ5¸ö¼ÆÊýµãA¡¢B¡¢C¡¢D¡¢E£¬ÏàÁÚÁ½¼ÆÊýµãÖ®¼ä¶¼ÓÐ4¸öµã¼£Ã»Óбê³ö£¬Óÿ̶ȳ߷ֱð²âÁ¿³öAµãµ½B¡¢C¡¢D¡¢EµÄ¾àÀëÈçͼËùʾ£¬¼ºÖª´òµã¼ÆʱÆ÷½ÓÔÚƵÂÊΪ50HzµÄ½»Á÷µçÔ´ÉÏ£¬Ôò´Ë´ÎʵÑéÖÐС³µÔ˶¯¼ÓËٶȵIJâÁ¿Öµa=
 
m/s2£®£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
¢ÛijͬѧƽºâĦ²ÁÁ¦ºó£¬¸Ä±äíÀÂëÅÌÖÐíÀÂëµÄÖÊÁ¿£¬·Ö±ð²âÁ¿³öС³µµÄ¼ÓËÙ¶Èa£®ÒÔ íÀÂëµÄÖØÁ¦FΪºá×ø±ê£¬ÒÔС³µµÄ¼ÓËÙ¶ÈaΪ×Ý×ø±ê£¬µÃÈçͼ±ûËùʾµÄa-FͼÏó£¬ÔòͼÏß²»Í¨¹ý×ø±êÔ­µãµÄÖ÷ÒªÔ­ÒòÊÇ
 

¾«Ó¢¼Ò½ÌÍø
£¨2£©ÎªÁ˲âÁ¿ÓÉÁ½½Ú¸Éµç³Ø×é³ÉµÄµç³Ø×éµÄµç¶¯ÊƺÍÄÚ×裬ijС×éµÄͬѧ´ÓʵÑéÊÒÀïÑ¡È¡ÁËÒÔÏÂÆ÷²Ä£ºÁ½½Ú¸Éµç³Ø×é³ÉµÄµç³Ø×飨µç¶¯ÊÆÔ¼3V£¬ÄÚ×èÔ¼1¦¸£©/µçѹ±í£¨Á¿³Ì0?3V£¬ÄÚ×èÔ¼1Ok¦¸£©£¬µç×èÏ䣨0?999.9¦¸£©£¬±£»¤µç×èR0£¨×èÖµ5¦¸£©£¬¿ª¹ØÒ»Ö»£¬µ¼ ÏßÈô¸É£®
¢ÙÔÚͼ1ËùʾµÄʵÑéÔ­ÀíʵÎïͼÖУ¬¸ÃͬѧÒÑÍê³ÉÁ˲¿·Öµ¼ÏßµÄÁ¬½Ó£¬ÎªÊ¹µçѹ±íʾÊýÓнϴóµÄ±ä»¯·¶Î§£¬ÇëÓñʠ»­Ïß´úÌæµ¼ÏßÍê³ÉÓàϵĵ¼ÏßÁ¬½Ó£®
¢ÚʵÑéÖУ¬Í¬Ñ§ÃÇÊÔ×ÅÓöàÓõç±í´úÌæµçѹ±í²âÁ¿µç
ѹ£®ÔÚÍê³É»úеµ÷ÁãÖ®ºó£¬Ó¦½«Ñ¡ÔñŽÔ¹Ø²¦µ½±íÅÌÉϵÄ
 
ÇøÓò£¨Ñ¡Ìî¡°¦¸¡±¡¢¡°V¡±¡¢¡°V¡±»ò¡°A¡°£©£®
¢ÛͬѧÃǸù¾ÝÒÔÉϵÄʵÑéÔ­ÀíºÍ·½·¨½øÐÐÁËʵÑ飬ͨ¹ýµ÷½Úµç×èÏäµÄµç×èÖµ£¬µÃµ½Á˶à×éµç×èÏä×èÖµRºÍµçѹ±íʾÊýU£¬²¢ÒÔ
1
U
Ϊ×Ý×ø±ê£¬
1
R
Ϊºá×ø±ê£¬×÷³ö
1
U
-
1
R
µÄ¹ØϵͼÏß2£¨¸ÃͼÏßΪһÌõÖ±Ïߣ©ÈçͼËùʾ£¬ÓÉͼÏß¿ÉÇóµÃµç³Ø×éµÄµç¶¯ÊÆ
 
V£¬ÄÚ×èr=
 
¦¸£®£¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
¾«Ó¢¼Ò½ÌÍø

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø