1.ÔÚ¡°Ì½¾¿ºãÁ¦×ö¹¦Ó붯ÄܸıäµÄ¹Øϵ¡±ÊµÑéÖУ¬Ä³Í¬Ñ§²ÉÓÃÈçͼ¼×ËùʾµÄ×°ÖõÄʵÑé·½°¸£¬ËûÏëÓù³ÂëµÄÖØÁ¦±íʾС³µÊܵ½µÄºÏÍâÁ¦£¬ÎªÁ˼õСÕâÖÖ×ö·¨´øÀ´µÄʵÑéÎó²î£¬ÄãÈÏΪÔÚʵÑéÖÐÓ¦¸Ã²ÉÈ¡µÄÁ½Ïî±ØÒª´ëÊ©ÊÇ£º

a£®_________________________________________£»      

b£®________________________________________£®

2.ÈçͼÒÒËùʾÊÇij´ÎʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬ÆäÖÐA¡¢B¡¢C¡¢D¡¢E¡¢FÊǼÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôΪT£®¾àÀëÈçͼÒÒ£®Ôò´òCµãʱС³µµÄËٶȱí´ïʽΪ£¨ÓÃÌâÖÐËù¸øÎïÀíÁ¿±íʾ£©            £»ÒªÑéÖ¤ºÏÍâÁ¦µÄ¹¦Ó붯Äܱ仯¼äµÄ¹Øϵ£¬³ýλÒÆ¡¢ËÙ¶ÈÍ⣬»¹Òª²â³öµÄÎïÀíÁ¿ÓР                £®

 

 

 

1.a£®Æ½ºâĦ²ÁÁ¦     b£®¹³ÂëµÄÖØÁ¦Ô¶Ð¡ÓÚС³µµÄ×ÜÖØÁ¦

2.¢Ù   £¨ÆäËüÕýÈ·Ò²µÃ·Ö£©      ¹³ÂëµÄÖØÁ¦ºÍС³µµÄ×ÜÖÊÁ¿

½âÎö:ÂÔ

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ̽¾¿¡°ºãÁ¦×ö¹¦Ó붯ÄܸıäµÄ¹Øϵ¡±µÄʵÑéÖУ¬Ä³Í¬Ñ§ÓÃ1kgµÄС³µ£¬ÔÚƽºâĦ²ÁÁ¦Ö®ºó£¬¹ÒÉÏ40gµÄСɰͰºó£¬Ð¡³µÍ϶¯Ö½´ø²¢´ò³öһϵÁеĵ㣮ͼÖеÄÖ½´øÖ»ÊÇ´ò³öµÄÖ½´øµÄÒ»²¿·Ö£¬Ëù±ê×¢µÄµãÊǼÆʱÆ÷ÿ´ò5µãËùÈ¡µÄÒ»¸ö¼ÆÊýµã£¬²âÁ¿Êý¾ÝÈçͼ£®Ôò£º£¨ËùÓý»Á÷µçµÄƵÂÊΪ50Hz£¬ÖØÁ¦¼ÓËÙ¶Èg=9.80m/s2£©
£¨1£©bµãËù¶ÔÓ¦µÄС³µÔ˶¯µÄ¶¯ÄÜΪ
0.057
0.057
J£»
£¨2£©´Óbµãµ½eµã£¬Ð¡³µ¶¯ÄܵÄÔö¼ÓÁ¿Îª
0.051
0.051
J£»
£¨3£©´Óbµãµ½eµã£¬É°Í°¶ÔС³µ×ö¹¦
0.051
0.051
J£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÔÚ̽¾¿¡°ºãÁ¦×ö¹¦Ó붯ÄܸıäµÄ¹Øϵ¡±µÄʵÑéÖУ¬Ä³Í¬Ñ§²ÉÓÃÈçÏÂͼװÖã¬Ð¡³µÖÊÁ¿M£¬ÔÚƽºâĦ²ÁÁ¦Ö®ºó£¬¹ÒÉÏÖØÎïmºó£¬Ð¡³µÍ϶¯Ö½´ø²¢´ò³öһϵÁеĵ㣮ͼÖеÄÖ½´øÖ»ÊÇ´ò³öµÄÖ½´øµÄÒ»²¿·Ö£¬Ëù±ê×¢µÄµãÏàÁÚÁ½µãµÄʱ¼ä¼ä¸ôΪT£®Ê¹ÓúÁÃ׿̶ȳ߽øÐвâÁ¿ºó£¬½«Êý¾Ý¼Ç¼ÔÚͼÖУ®Ôò£º£¨ÖØÁ¦¼ÓËÙ¶ÈΪg£©

£¨1£©ÈôÔÚ¸ÃʵÑé×°ÖÃÖÐÉþ×Ó¶ÔС³µµÄÀ­Á¦È¡Îªmg£¬ÔòС³µÖÊÁ¿MÓëËù¹ÒÖØÎïÖÊÁ¿mÓ¦Âú×ãʲô¹Øϵ
B
B

A¡¢M£¾m      B¡¢M£¾£¾m      C¡¢M£¼m        D¡¢M£¼£¼m
£¨2£©ÈôС³µÖÊÁ¿MºÍÖØÎïÖÊÁ¿mÂú×㣨1£©ÖÐÌõ¼þ£¬ÇëÓÃÌâÄ¿Ëù¸ø¸÷¸öÎïÀíÁ¿µÄ·ûºÅ¼ÆËãÏÂÃæÎÊÌ⣺
bµãËù¶ÔÓ¦µÄС³µÔ˶¯µÄ¶¯ÄÜΪ
M(s1+s2)2
8T2
M(s1+s2)2
8T2
£»
´Óbµãµ½eµã£¬Ð¡³µ¶¯ÄܵÄÔö¼ÓÁ¿Îª
M[(s4+s5)2-(s1+s2)2]
8T2
M[(s4+s5)2-(s1+s2)2]
8T2
£»
´Óbµãµ½eµã£¬ÖØÎï¶ÔС³µ×ö¹¦
mg£¨s2+s3+s4£©
mg£¨s2+s3+s4£©
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£ºÔĶÁÀí½â

£¨1£©ÔÚ¡°Ì½¾¿ºãÁ¦×ö¹¦Ó붯ÄܸıäµÄ¹Øϵ¡±ÊµÑéÖУ¬Ä³ÊµÑéС×é²ÉÓÃÈçͼ¼×ËùʾµÄ×°Öã®ÊµÑé²½ÖèÈçÏ£º¾«Ó¢¼Ò½ÌÍø
¢Ù°ÑÖ½´øµÄÒ»¶Ë¹Ì¶¨ÔÚС³µµÄºóÃ棬ÁíÒ»¶Ë´©¹ý´òµã¼ÆʱÆ÷
¢Ú¸Ä±äľ°åµÄÇã½Ç£¬ÒÔÖØÁ¦µÄÒ»¸ö·ÖÁ¦Æ½ºâС³µ¼°Ö½´øÊܵ½µÄĦ²ÁÁ¦
¢ÛÓÃϸÏß½«Ä¾°åÆßµÄС³µÍ¨¹ý-¸ö¶¨»¬ÂÖÓëÐüµõµÄÍÐÅÌÏàÁ¬
¢Ü½ÓͨµçÔ´£¬·Å¿ªÐ¡³µ£¬ÈÃС³µÍÏ×ÅÖ½´øÔ˶¯£¬´òµã¼ÆʱÆ÷¾ÍÔÚÖ½´øÉÏ´òÏÂһϵÁеĵã
¢Ý²â³ös¡¢s1¡¢s2 £¨ÈçͼÒÒËùʾ£©£¬²éµÃ´òµãÖÜÆÚΪT
ÅжÏÒÑƽºâĦ²ÁÁ¦µÄÖ±½ÓÖ¤¾ÝÊÇ
 
£»±¾ÊµÑ黹ÐèÖ±½Ó²âÁ¿µÄÎïÀíÁ¿ÊÇ£º
 
£®£¨²¢ÓÃÏàÓ¦µÄ·ûºÅ±íʾ£©
̽¾¿½á¹ûµÄ±í´ïʽÊÇ
 
£®£¨ÓÃÏàÓ¦µÄ·ûºÅ±íʾ£©
£¨2£©ÀûÓñ¾×°Öû¹¿ÉÒÔ²âÁ¿»¬¿éÓëľ°åÖ®¼äµÄ¶¯Ä¦²ÁÒòÊý£®½«Ð¡³µ»»³É»¬¿é£¬Ä¾°åƽ·ÅÔÚˮƽ×ÀÃæÉÏ£¬´òµã¼ÆʱÆ÷ʹÓõĽ»Á÷µçÔ´µÄƵÂÊΪ50Hz£®¿ªÊ¼ÊµÑéʱ£¬ÔÚÍÐÅÌÖзÅÈËÊÊÁ¿íÀÂ룬»¬¿é¿ªÊ¼×öÔȼÓËÙÔ˶¯£¬ÔÚÖ½´øÉÏ´ò³öһϵÁÐСµã£®
¾«Ó¢¼Ò½ÌÍø
¢ÙÉÏͼ¸ø³öµÄÊÇʵÑéÖлñÈ¡µÄÒ»ÌõÖ½´øµÄÒ»²¿·Ö£º0¡¢l¡¢2¡¢3¡¢4¡¢5¡¢6¡¢7ÊǼÆÊýµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ£®¸ù¾ÝͼÖÐÊý¾Ý¼ÆËãµÄ¼ÓËٶȦÁ=
 
£¨±£ÁôÈýλÓÐЧÊý×Ö£©£®
¢ÚΪ²âÁ¿¶¯Ä¦²ÁÒòÊý£¬ÏÂÁÐÎïÀíÁ¿Öл¹Ó¦²âÁ¿µÄÓÐ
 
£®£¨ÌîÈëËùÑ¡ÎïÀíÁ¿Ç°µÄ×Öĸ£©
A¡¢Ä¾°åµÄ³¤¶Èl
B¡¢Ä¾°åµÄÖÊÁ¿m1
C¡¢»¬¿éµÄÖÊÁ¿m2
D¡¢ÍÐÅ̺ÍíÀÂëµÄ×ÜÖÊÁ¿m3
E¡¢»¬¿éÔ˶¯µÄʱ¼ät
²âÁ¿ÉÏÊöËùÑ¡¶¨µÄÎïÀíÁ¿Ê±ÐèÒªµÄʵÑéÆ÷²ÄÊÇ
 
£®
¢Û»¬¿éÓëľ°å¼äµÄ¶¯Ä¦²ÁÒòÊý¦Ì=
 
£¨Óñ»²âÎïÀíÁ¿µÄ×Öĸ±íʾ£¬ÖØÁ¦¼ÓËÙ¶ÈΪg£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2011-2012ѧÄ꺣ÄÏÊ¡º£ÄÏÖÐѧ¸ßÒ»ÏÂѧÆÚÆÚÖп¼ÊÔÎïÀíÊÔ¾í£¨´ø½âÎö£© ÌâÐÍ£ºÊµÑéÌâ

ÔÚ̽¾¿¡°ºãÁ¦×ö¹¦Ó붯ÄܸıäµÄ¹Øϵ¡±µÄʵÑéÖУ¬Ä³Í¬Ñ§ÓÃ1kgµÄС³µ£¬ÔÚƽºâĦ²ÁÁ¦Ö®ºó£¬¹ÒÉÏ44gµÄСɰͰºó£¬Ð¡³µÍ϶¯Ö½´ø²¢´ò³öһϵÁеĵ㡣ͼ4ÖеÄÖ½´øÖ»ÊÇ´ò³öµÄÖ½´øµÄÒ»²¿·Ö£¬ÏàÁÚ¼ÆÊýµãʱ¼ä¼ä¸ôΪ0.10s£¬²âÁ¿Êý¾ÝÈçͼ4Ëùʾ¡££¨ÖØÁ¦¼ÓËÙ¶Èg =9.80m/s2£»£©Ôò£º£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

£¨1£©bµãËù¶ÔÓ¦µÄС³µÔ˶¯µÄ¶¯ÄÜΪ         J£»
£¨2£©´Óbµãµ½eµã£¬Ð¡³µ¶¯ÄܵÄÔö¼ÓÁ¿Îª         J£»
£¨3£©´Óbµãµ½eµã£¬É°Í°¶ÔС³µ×ö¹¦          J¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º2014½ìº£ÄÏÊ¡¸ßÒ»ÏÂѧÆÚÆÚÖп¼ÊÔÎïÀíÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÊµÑéÌâ

ÔÚ̽¾¿¡°ºãÁ¦×ö¹¦Ó붯ÄܸıäµÄ¹Øϵ¡±µÄʵÑéÖУ¬Ä³Í¬Ñ§ÓÃ1kgµÄС³µ£¬ÔÚƽºâĦ²ÁÁ¦Ö®ºó£¬¹ÒÉÏ44gµÄСɰͰºó£¬Ð¡³µÍ϶¯Ö½´ø²¢´ò³öһϵÁеĵ㡣ͼ4ÖеÄÖ½´øÖ»ÊÇ´ò³öµÄÖ½´øµÄÒ»²¿·Ö£¬ÏàÁÚ¼ÆÊýµãʱ¼ä¼ä¸ôΪ0.10s£¬²âÁ¿Êý¾ÝÈçͼ4Ëùʾ¡££¨ÖØÁ¦¼ÓËÙ¶Èg =9.80m/s2£»£©Ôò£º£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©

£¨1£©bµãËù¶ÔÓ¦µÄС³µÔ˶¯µÄ¶¯ÄÜΪ          J£»

£¨2£©´Óbµãµ½eµã£¬Ð¡³µ¶¯ÄܵÄÔö¼ÓÁ¿Îª          J£»

£¨3£©´Óbµãµ½eµã£¬É°Í°¶ÔС³µ×ö¹¦           J¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸