ÓÃÈçͼ¼×ËùʾװÖÃ×ö¡°Ì½¾¿ÎïÌåµÄ¼ÓËٶȸúÁ¦µÄ¹Øϵ¡±µÄʵÑ顣ʵÑéʱ±£³ÖС³µµÄÖÊÁ¿²»±ä£¬Óù³ÂëËùÊܵÄÖØÁ¦×÷ΪС³µÊܵ½µÄºÏÁ¦£¬Óôòµã¼ÆʱÆ÷ºÍС³µºó¶ËÍ϶¯µÄÖ½´ø²â³öС³µÔ˶¯µÄ¼ÓËٶȡ£

¢Ù  ʵÑéʱÏȲ»¹Ò¹³Â룬·´¸´µ÷ÕûµæľµÄ×óÓÒλÖã¬Ö±µ½Ð¡³µ×öÔÈËÙÖ±ÏßÔ˶¯£¬ÕâÑù×ö

µÄÄ¿µÄÊÇ                        ¡£

 

¢ÚͼÒÒΪʵÑéÖдò³öµÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£¬´Ó±È½ÏÇåÎúµÄµã¼£Æð£¬ÔÚÖ½´øÉϱê³öÁËÁ¬ÐøµÄ5¸ö¼ÆÊýµãA¡¢B¡¢C¡¢D¡¢E£¬ÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼ä¶¼ÓÐ4¸öµã¼£Ã»Óбê³ö£¬²â³ö¸÷¼ÆÊýµãµ½AµãÖ®¼äµÄ¾àÀ룬ÈçͼÒÒËùʾ¡£ÒÑÖª´òµã¼ÆʱÆ÷½ÓÔÚƵÂÊΪ50HzµÄ½»Á÷µçÔ´Á½¶Ë£¬Ôò´Ë´ÎʵÑéÖÐС³µÔ˶¯µÄ¼ÓËٶȵIJâÁ¿Öµa=____________m/s2¡££¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

 

¢ÛʵÑéʱ¸Ä±äËù¹Ò¹³ÂëµÄÖÊÁ¿£¬·Ö±ð²âÁ¿Ð¡³µÔÚ²»Í¬ÍâÁ¦×÷ÓÃϵļÓËٶȡ£¸ù¾Ý²âµÃµÄ¶à×éÊý¾Ý»­³öa-F¹ØϵͼÏߣ¬Èçͼ±ûËùʾ¡£´ËͼÏßµÄAB¶ÎÃ÷ÏÔÆ«ÀëÖ±Ïߣ¬Ôì³É´ËÏÖÏóµÄÖ÷ÒªÔ­Òò¿ÉÄÜÊÇ         ¡££¨Ñ¡ÌîÏÂÁÐÑ¡ÏîµÄÐòºÅ£©

A£®Ð¡³µÓëƽÃæ¹ìµÀÖ®¼ä´æÔÚĦ²Á      B£®Æ½Ãæ¹ìµÀÇãб½Ç¶È¹ý´ó

C£®Ëù¹Ò¹³ÂëµÄ×ÜÖÊÁ¿¹ý´ó            D£®ËùÓÃС³µµÄÖÊÁ¿¹ý´ó

 

¡¾´ð°¸¡¿

¢ÙƽºâС³µÔ˶¯ÖÐËùÊܵÄĦ²Á×èÁ¦¡­¡­£¨2·Ö£©  

¢Ú0.99»ò1.0¡­¡­£¨2·Ö£©      ¢ÛC¡­¡­£¨2·Ö£©

¡¾½âÎö¡¿¢Ù·´¸´µ÷ÕûµæľµÄ×óÓÒλÖã¬¿É¸Ä±äľ°åµÄÇã½Ç£¬ÀûÓÃС³µÑØбÃæÏòϵķÖÁ¦À´Æ½ºâС³µÔ˶¯ÖÐ ËùÊܵÄĦ²Á×èÁ¦¡£

¢ÚÈçͼ£ºx1=3.8cm=0.038m,

x2=8.79-3.8=4.99cm=0.0499m

X3=14.7-8.79=5.91cm=0.0591m,

X4=21.6-14.7=6.9cm=0.069m

 ÓÉ£¬T=0.1s£¬´úÈëÊý¾ÝµÃa=1.0m/s2.

¢ÛʵÑéʱ±£³ÖС³µµÄÖÊÁ¿²»±ä£¬Óù³ÂëËùÊܵÄÖØÁ¦×÷ΪС³µÊܵ½µÄºÏÁ¦£¬Âú×ãÌõ¼þÊÇС³µµÄÖÊÁ¿Ô¶´óÓÚ¹³ÂëµÄÖÊÁ¿£¬ÈôËù¹Ò¹³Âë×ÜÖÊÁ¿¹ý´óʱ£¬ÒýÆðµÄʵÑéÎó²î½Ï´ó£¬Ôì³ÉͼÏßµÄAB¶ÎÃ÷ÏÔÆ«ÀëÖ±Ïß¡£

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÓÃÈçͼ¼×ËùʾװÖÃ×ö¡°Ì½¾¿ÎïÌåµÄ¼ÓËٶȸú Á¦µÄ¹Øϵ¡±µÄʵÑ飮ʵÑéʱ±£³ÖС³µµÄÖÊÁ¿²»±ä£¬Óù³ÂëËùÊܵÄÖØÁ¦×÷ΪС³µÊܵ½µÄºÏÁ¦£¬Óôòµã¼ÆʱÆ÷ºÍС³µºó¶ËÍ϶¯µÄÖ½´ø²â³öС³µÔ˶¯µÄ¼ÓËٶȣ®
£¨1£©ÊµÑéʱÏÈ
²»¹Ò
²»¹Ò
£¨Ìî¡°¹Ò¡±»ò¡°²»¹Ò¡±£©¹³Â룬
°²×°
°²×°
£¨Ìî¡°°²×°¡±»ò¡°²»°²×°¡±£©Ö½´ø£®·´¸´µ÷ÕûµæľµÄ×óÓÒλÖã¬Ö±µ½
ÇáÍÆÒ»ÏÂС³µÊ±Ð¡³µÄÜ×öÔÈËÙÖ±ÏßÔ˶¯»òÖ½´øÉÏ´òµÄµã¾ùÔÈ·Ö²¼
ÇáÍÆÒ»ÏÂС³µÊ±Ð¡³µÄÜ×öÔÈËÙÖ±ÏßÔ˶¯»òÖ½´øÉÏ´òµÄµã¾ùÔÈ·Ö²¼
£¬ÕâÑù×öµÄÄ¿µÄÊÇ
ƽºâС³µÔ˶¯ÖÐËùÊܵÄĦ²Á×èÁ¦
ƽºâС³µÔ˶¯ÖÐËùÊܵÄĦ²Á×èÁ¦
£®
£¨2£©Í¼ÒÒΪʵÑéÖдò³öµÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£¬´Ó±È½ÏÇåÎúµÄµã¼£Æð£¬ÔÚÖ½´øÉϱê³öÁËÁ¬ÐøµÄ5¸ö¼ÆÊýµãA¡¢B¡¢C¡¢D¡¢E£¬ÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼ä¶¼ÓÐ4¸öµã¼£Ã»Óбê³ö£¬²â³ö¸÷¼ÆÊýµãµ½AµãÖ®¼äµÄ¾àÀ룬ÈçͼÒÒËùʾ£®ÒÑÖª´òµã¼ÆʱÆ÷½ÓÔÚƵÂÊΪ50HzµÄ½»Á÷µçÔ´Á½¶Ë£¬Ôò´Ë´ÎʵÑéÖÐС³µÔ˶¯µÄ¼ÓËٶȵIJâÁ¿Öµa=
1.0
1.0
m/s2£®£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2009?ÑγǶþÄ££©£¨1£©¼×ͼÖÐÓα꿨³ßµÄ¶ÁÊýÊÇ
10.050
10.050
cm£®ÒÒͼÖÐÂÝÐý²â΢Æ÷µÄ¶ÁÊýÊÇ
3.200
3.200
mm

£¨2£©Ä³Í¬Ñ§ÓÃÈçͼ¼×ËùʾװÖÃ×ö¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑ飮ͼÒÒΪʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬ÔÚÖ½´øÉÏÓÃ0¡¢1¡¢2¡¢3¡¢4¡¢5¡¢6¡­±ê³ö¼ÆÊýµã£®

¢Ù¹æ¶¨´òµã1ʱÖØÁ¦ÊÆÄÜΪ0£¬Òª¼ÆËã³ö´òµã4ʱÖØÎïµÄ»úеÄÜ£¬ÔÚÖ½´øÉϱØÐë²â³ö
1¡¢4Á½µãÖ®¼äµÄ¾àÀëºÍ3¡¢5Á½µãÖ®¼äµÄ¾àÀë
1¡¢4Á½µãÖ®¼äµÄ¾àÀëºÍ3¡¢5Á½µãÖ®¼äµÄ¾àÀë
£®
ʵÑéÖÐÈô²»ÖªµÀ±¾µØµÄÖØÁ¦¼ÓËٶȵĴóС£¬Òª¼ÆËã³ö»úеÄÜ»¹±ØÐë²â³öÖØÎïµÄ
ÖÊÁ¿ºÍÖØÁ¦
ÖÊÁ¿ºÍÖØÁ¦
£®
¢Ú¸Ãͬѧ¸ù¾Ý²â³öµÄÊý¾Ý׼ȷµØ¼ÆËã³ö¸÷¼ÆÊýµãʱÖØÎïµÄ»úеÄÜ£¬·¢ÏÖ´òºóÒ»¸öµãʱ»úеÄܶ¼±È´òÇ°Ò»¸öµãʱ»úеÄÜС£¬ÆäÔ­Òò¿ÉÄÜÊÇ
ʵÑéÖдæÔÚ×èÁ¦
ʵÑéÖдæÔÚ×èÁ¦
 £¨Ö»ÒªÇó˵³öÒ»ÖÖ£©£®
¢ÛÈôÔÚÊý¾Ý´¦ÀíʱËùÓõÄÖØÁ¦¼ÓËٶȱȱ¾µØµÄÖØÁ¦¼ÓËÙ¶ÈÆ«´ó£¬²»¿¼ÂÇÆäËüÒòËزúÉúµÄÎó²î£¬½«Ê¹´òºóÒ»¸öµãʱ»úеÄܶ¼±È´òÇ°Ò»¸öµãʱ»úеÄÜ
´ó
´ó
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨1£©Ä³Í¬Ñ§ÓÃÈçͼ¼×ËùʾװÖÃ×ö¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑ飮ͼÒÒΪʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬ÔÚÖ½´øÉÏÓÃ0¡¢1¡¢2¡¢3¡¢4¡¢5¡¢6¡­±ê³ö¼ÆÊýµã£®
¾«Ó¢¼Ò½ÌÍø
¢ÙʵÑéʱ£¬ËÉ¿ªÖ½´øÓë±ÕºÏµçÔ´¿ª¹ØµÄºÏÀí˳ÐòÊÇ
 
£®
¢Ú¹æ¶¨´òµã1ʱÖØÁ¦ÊÆÄÜΪ0£¬Òª¼ÆËã³ö´òµã4ʱÖØÎïµÄ»úеÄÜ£¬ÔÚÖ½´øÉϱØÐë²â³ö
 
£®
¢Û¸Ãͬѧ¸ù¾Ý²â³öµÄÊý¾Ý׼ȷµØ¼ÆËã³ö¸÷¼ÆÊýµãʱÖØÎïµÄ»úеÄÜ£¬·¢ÏÖ´òºóÒ»¸öµãʱ»úеÄܶ¼±È´òÇ°Ò»¸öµãʱ»úеÄÜС£¬ÆäÔ­Òò¿ÉÄÜÊÇ
 
 £¨Ö»ÒªÇó˵³öÒ»ÖÖÔ­Òò£©£®
¢ÜÈôÔÚÊý¾Ý´¦ÀíʱËùÓõÄÖØÁ¦¼ÓËٶȱȱ¾µØµÄÖØÁ¦¼ÓËÙ¶ÈÆ«´ó£¬²»¿¼ÂÇÆäËüÒòËزúÉúµÄÎó²î£¬½«Ê¹´òºóÒ»¸öµãʱ»úеÄܶ¼±È´òÇ°Ò»¸öµãʱ»úеÄÜ
 
£®
£¨2£©Èçͼ±ûËùʾ£¬Ó÷ü°²·¨²âµçÔ´µç¶¯ÊƺÍÄÚ×èµÄʵÑéÖУ¬ÔÚµç·ÖнÓÒ»×èֵΪ2¦¸µÄµç×èR0£¬Í¨¹ý¸Ä±ä»¬¶¯±ä×èÆ÷£¬µÃµ½¼¸×éµç±íµÄʵÑéÊý¾Ý£º
¾«Ó¢¼Ò½ÌÍø
U£¨V£© 1.2 1.0 0.8 0.6
I£¨A£© 0.10 0.17 0.23 0.30
¢ÙR0µÄ×÷ÓÃÊÇ
 
£»
¢ÚÓÃ×÷ͼ·¨ÔÚ×ø±êϵÉÏ×÷³öU-Iͼ£¨¶¡£©Ïߣ»
¢ÛÀûÓÃͼÏߣ¬²âµÃµç¶¯ÊÆE=
 
V£¬ÄÚ×èr=
 
¦¸£®£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

һС×éµÄͬѧÓÃÈçͼ¼×ËùʾװÖÃ×ö¡°Ì½¾¿ÎïÌåÖÊÁ¿Ò»¶¨Ê±£¬¼ÓËÙ¶ÈÓëÁ¦µÄ¹Øϵ¡±ÊµÑ飮
¾«Ó¢¼Ò½ÌÍø
£¨1£©ÏÂÁÐ˵·¨ÕýÈ·µÄÓУ¨Ö»ÓÐÒ»ÏîÕýÈ·£©
 
£®
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£¬¶¼±ØÐëÖØÐÂƽºâĦ²ÁÁ¦
C£®ÎªÊ¹Ï¸Ï߶ÔС³µµÄÀ­Á¦Ô¼µÈÓÚíÀÂë¼°íÀÂëÅ̵Ä×ÜÖØÁ¦£¬Ó¦ÈÃíÀÂë¼°íÀÂëÅÌ×ÜÖÊÁ¿Ô¶Ð¡ÓÚС³µ¼°ÀïÃæ¹³ÂëµÄ×ÜÖÊÁ¿
£¨2£©ÒÒͼΪʵÑéÖа´¹æ·¶²Ù×÷´ò³öµÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£®´Ó±È½ÏÇåÎúµÄµã¼£Æð£¬ÔÚÖ½´øÉϱê³öÁËÁ¬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£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨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

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸