£¨9·Ö£©Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±ÊµÑéʱ£¬´Ó´òϵÄÈô¸ÉÖ½´øÖÐÑ¡³öÁËÈçͼËùʾµÄÒ»Ìõ£¨Ã¿Á½µã¼ä»¹ÓÐ4¸öµãûÓл­³öÀ´£©£¬Í¼ÖÐÉϲ¿µÄÊý×ÖΪÏàÁÚÁ½¸ö¼ÆÊýµã¼äµÄ¾àÀë¡£´òµã¼ÆʱÆ÷µÄµçԴƵÂÊΪ50Hz¡£

Èç¹ûÓÃs1¡¢s2¡¢s3¡¢s4¡¢s5¡¢s6À´±íʾ¸÷ÏàÁÚÁ½¸ö¼ÆÊýµã¼äµÄ¾àÀë¡£ÓÉÕâЩÒÑÖªÊý¾Ý¼ÆË㣺¸ÃÔȱäËÙÖ±ÏßÔ˶¯µÄ¼ÓËٶȵıí´ïʽΪa=__________________¡£Æä´óСΪa="___" _m/s2¡£ÓëÖ½´øÉÏDµãÏà¶ÔÓ¦µÄ˲ʱËÙ¶Èv="_________" m/s¡££¨´ð°¸¾ùÒªÇó±£Áô3λÓÐЧÊý×Ö£©
a=[£¨s4+s5+s6£©-£¨s1+s2+s3£©]/9T2.  1.93      1.39

ÊÔÌâ·ÖÎö£ºÓÉÖð²î·¨µÃ¼ÓËٶȱí´ïʽΪ£¨s4+s5+s6£©-£¨s1+s2+s3£©=a£¨3T£©2£¬µÃa=[£¨s4+s5+s6£©-£¨s1+s2+s3£©]/9T2£¬´øÈëÊý¾ÝÇóµÃa="1.93" m/s2¡£Ö½´øÉÏDµã¶ÔÓ¦Ö½´øµÄ˲ʱËÙ¶ÈΪCE¼äµÄƽ¾ùËٶȣ¬ÏàÁÚ¼ÆÊýµã¼äʱ¼äΪ0.1s£¬ÇóµÃDµã¶ÔÓ¦ËÙ¶ÈΪ1.39m/s¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

£¨10·Ö£©Ä³Í¬Ñ§ÔÚ×ö¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéʱ£º
£¨1£©£¨5·Ö£©ÊµÑéÊÒÌṩÁËÏÂÁеÄʵÑéÆ÷²Ä£º
¢Ù´òµã¼ÆʱÆ÷    ¢ÚÌìƽ    ¢Ûµ¼Ïߺ͵çÔ´    ¢ÜϸÉþºÍÖ½´ø   ¢Ý¹³ÂëºÍС³µ    ¢ÞÃë±í    ¢ßÒ»¶ËÓл¬Âֵij¤Ä¾°å      ¢à¿Ì¶È³ß¡£
Ôò¸Ãͬѧ²»ÐèҪѡÓõÄÆ÷²ÄÓУ¨Ð´´úºÅ£©£º________________ 
£¨2£©£¨5·Ö£©ÔÚ¸ÃʵÑéÖУ¬Ð¡³µÍÏ×ÅÖ½´øͨ¹ý¼Ç¼ÏµÄÔ˶¯Çé¿öÈçͼËùʾ£¬Í¼ÖÐO¡¢A¡¢B¡¢C¡¢D¡¢EΪÁ¬ÐøÑ¡¶¨µÄ¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôÊÇ0.10s£¬±ê³öµÄÊý¾Ýµ¥Î»ÊÇcm£¬ÔòÔÚ´òCµãʱС³µµÄËÙ¶ÈÊÇ______m/s¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

£¨9·Ö£©Ä³Í¬Ñ§Óôòµã¼ÆʱÆ÷²âÁ¿×öÔȼÓËÙÖ±ÏßÔ˶¯µÄÎïÌåµÄ¼ÓËٶȣ¬µçԴƵÂÊf£½50 Hz.ÔÚÖ½´øÉÏ´ò³öµÄµãÖУ¬Ñ¡³öÁãµã£¬Ã¿¸ô4¸öµãÈ¡1¸ö¼ÆÊýµã£¬Òò±£´æ²»µ±£¬Ö½´ø±»ÎÛȾ£¬ÈçͼËùʾ£¬A¡¢B¡¢C¡¢DÊÇÒÀ´ÎÅÅÁеÄ4¸ö¼ÆÊýµã£¬½öÄܶÁ³öÆäÖÐ3¸ö¼ÆÊýµãµ½ÁãµãµÄ¾àÀ룺£¬£½126.5mm£¬£½624.5mm.

ÈôÎÞ·¨ÔÙ×öʵÑ飬¿ÉÓÉÒÔÉÏÐÅÏ¢ÍÆÖª£º
¢ÙÏàÁÚÁ½¼ÆÊýµãµÄʱ¼ä¼ä¸ôΪ________s£»
¢Ú´òCµãʱÎïÌåµÄËٶȴóСΪ________m/s£¨È¡2λÓÐЧÊý×Ö£©£»
¢ÛÎïÌåµÄ¼ÓËٶȴóСΪ________£¨Óᢡ¢ºÍ±íʾ£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

(10·Ö)ijͬѧÓÃͼÖÐËùʾµÄʵÑé×°ÖÃÑо¿Ð¡³µÔÚбÃæÉϵÄÔ˶¯¡£ÊµÑé²½ÖèÈçÏ£º

a£®°²×°ºÃʵÑéÆ÷²Ä¡£
b£®½ÓͨµçÔ´ºó£¬ÈÃÍÏ×ÅÖ½´øµÄС³µÑØƽ°åбÃæÏòÏÂÔ˶¯£¬Öظ´¼¸´Î¡£Ñ¡³öÒ»Ìõµã¼£±È½ÏÇåÎúµÄÖ½´ø£¬ÉáÈ¥¿ªÊ¼Ãܼ¯µÄµã¼££¬´Ó±ãÓÚ²âÁ¿µÄµã¿ªÊ¼£¬Ã¿Á½¸ö´òµã¼ä¸ôÈ¡Ò»¸ö¼ÆÊýµã£¬ÈçÏÂͼÖÐ0¡¢1¡¢2¡­¡¢6µãËùʾ¡£

c£®²âÁ¿1¡¢2¡¢3¡¢¡­¡¢6¼ÆÊýµãµ½0¼ÆÊýµãµÄ¾àÀ룬·Ö±ð¼Ç×÷£ºS1¡¢S2¡¢S3¡¢¡­¡¢S6¡£
d£®Í¨¹ý²âÁ¿ºÍ¼ÆË㣬¸ÃͬѧÅжϳöС³µÑØƽ°å×öÔȼÓËÙÖ±ÏßÔ˶¯¡£
e£®·Ö±ð¼ÆËã³öS1¡¢S2¡¢S3¡¢¡­¡¢S6Óë¶ÔӦʱ¼äµÄ±ÈÖµ¡£
f£®ÒÔΪ×Ý×ø±ê¡¢tΪºá×ø±ê£¬±ê³öÓë¶ÔӦʱ¼ätµÄ×ø±êµã£¬»­³ö¡ªtͼÏß¡£
½áºÏÉÏÊöʵÑé²½Ö裬ÇëÄãÍê³ÉÏÂÁÐÈÎÎñ£º
¢ÙʵÑéÖУ¬³ý´òµã¼ÆʱÆ÷£¨º¬Ö½´ø¡¢¸´Ð´Ö½£©¡¢Ð¡³µ¡¢Æ½°å¡¢Ìú¼Ų̈¡¢µ¼Ïß¼°¿ª¹ØÍ⣬ÔÚÏÂÃæµÄÒÇÆ÷ºÍÆ÷²ÄÖУ¬±ØÐëʹÓõÄÓР      ºÍ         ¡££¨ÌîÑ¡Ïî´úºÅ£©
A£®µçѹºÏÊʵÄ50 Hz½»Á÷µçÔ´B£®µçѹ¿Éµ÷µÄÖ±Á÷µçÔ´
C£®¿Ì¶È³ßD£®Ãë±í
E£®Ììƽ                   F£®ÖØ´¸
¢Ú½«×îС¿Ì¶ÈΪ1 mmµÄ¿Ì¶È³ßµÄ0¿ÌÏßÓë0¼ÆÊýµã¶ÔÆ룬0¡¢1¡¢2¡¢5¼ÆÊýµãËùÔÚλÖÃÈçͼËùʾ£¬ÔòS2£½       cm£¬S5£½        cm¡£

¢Û¸ÃͬѧÔÚͼÖÐÒѱê³ö1¡¢3¡¢4¡¢6¼ÆÊýµã¶ÔÓ¦µÄ×ø±ê£¬ÇëÄãÔÚ¸ÃͼÖбê³öÓë2¡¢5Á½¸ö¼ÆÊýµã¶ÔÓ¦µÄ×ø±êµã£¬²¢»­³ö¡ªtͼ¡£

¢Ü¸ù¾Ý¡ªtͼÏßÅжϣ¬ÔÚ´ò0¼ÆÊýµãʱ£¬
С³µµÄËÙ¶Èv0£½       m/s£»
ËüÔÚбÃæÉÏÔ˶¯µÄ¼ÓËÙ¶Èa£½       m/s2¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

ÈçͼΪ½ÓÔÚ50HzµÍѹ½»Á÷µçÔ´ÉϵĴòµã¼ÆʱÆ÷£¬ÔÚÖ½´ø×öÔȼÓËÙÖ±ÏßÔ˶¯Ê±´ò³öµÄÒ»ÌõÖ½´ø£¬Í¼ÖÐËùʾµÄÊÇÿ´ò5¸öµãËùÈ¡µÄ¼ÇÊýµã£¬µ«µÚ3¸ö¼ÇÊýµãûÓл­³ö¡£ÓÉͼÊý¾Ý¿ÉÇóµÃ£º£¨ÒÔÏÂÒªÇóСÊýµãºó±£Áô2룩

£¨1£©¸ÃÎïÌåµÄ¼ÓËÙ¶ÈΪ                    m/s2£¬
£¨2£©µÚ3¸ö¼ÇÊýµãÓëµÚ2¸ö¼ÇÊýµãµÄ¾àÀëԼΪ            cm£¬
£¨3£©´òµÚ3¸ö¼ÇÊýµãʱ¸ÃÎïÌåµÄËÙ¶ÈΪ               m/s¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

(12·Ö)ijͬѧ½«Á¦´«¸ÐÆ÷¹Ì¶¨ÔÚС³µÉÏ£¬È»ºó°ÑÉþµÄÒ»¶Ë¹Ì¶¨ÔÚ´«¸ÐÆ÷µÄ¹Ò¹³ÉÏ£¬ÓÃÀ´²âÁ¿Éþ¶ÔС³µµÄÀ­Á¦£¬Ì½¾¿ÔÚС³µ¼°´«¸ÐÆ÷×ÜÖÊÁ¿²»±äʱ¼ÓËٶȸúËüÃÇËùÊÜÀ­Á¦µÄ¹Øϵ£¬¸ù¾ÝËù²âÊý¾ÝÔÚ×ø±êϵÖÐ×÷³öÁËÈçͼËùʾµÄͼÏñ¡£

(1)ͼÏñ²»¹ý×ø±êÔ­µãµÄÔ­ÒòÊÇ_____________£»
(2)±¾ÊµÑéÖÐÊÇ·ñÈÔÐèҪϸɳºÍÍ°µÄ×ÜÖÊÁ¿Ô¶Ð¡ÓÚС³µºÍ´«¸ÐÆ÷µÄ×ÜÖÊÁ¿______(Ìî ¡°ÊÇ¡±»ò¡°·ñ¡±)£»
(3)ÓÉͼÏñÇó³öС³µºÍ´«¸ÐÆ÷µÄ×ÜÖÊÁ¿Îª_________kg£»Í¨¹ýʵÑéµÃµ½ÈçͼËùʾµÄÖ½´ø£¬Ö½´øÉϵãΪС³µÔ˶¯Æðʼʱ¿ÌËù´òµÄµã£¬Ñ¡È¡Ê±¼ä¼ä¸ôΪ 0.1s µÄÏàÁÚ¼ÆÊýµãA¡¢B¡¢C¡¢D¡¢E¡¢F¡¢G¡£ÔòС³µÔ˶¯µÄ¼ÓËÙ¶ÈΪ=        (±£Áô3λÓÐЧÊý×Ö£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

£¨1£©¡°ÑéÖ¤»úеÄÜÊغ㶨ÂÉ¡±µÄʵÑé¿ÉÒÔ²ÉÓÃÈçͼËùʾµÄ(¼×)»ò(ÒÒ)·½°¸À´½øÐС£
¢Ù±È½ÏÕâÁ½ÖÖ·½°¸£¬    (Ìî¡°¼×¡±»ò¡°ÒÒ¡±)·½°¸ºÃЩ¡£

¢ÚÈçͼÊǸÃʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬²âµÃÿÁ½¸ö¼ÆÊýµã¼äµÄ¾àÀëÈçͼÖÐËùʾ£¬ÒÑÖªÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼äµÄʱ¼ä¼ä¸ôT£½0.1s£®ÎïÌåÔ˶¯µÄ¼ÓËÙ¶Èa£½             £»¸ÃÖ½´øÊDzÉÓà        (Ìî¡°¼×¡±»ò¡°ÒÒ¡±)ʵÑé·½°¸µÃµ½µÄ£®
£¨2£©Èçͼa£¬Ä³Í¬Ñ§Òª²âÁ¿»¬¿éÓ볤ľ°å¼äµÄ¶¯Ä¦²ÁÒòÊý¦Ì£¬Ã»Óдòµã¼ÆʱÆ÷£¬ËûÓÃÒ»µÎÆ¿×÷¼Æʱ¹¤¾ß£¬ÒÑÖª´ÓµÎÆ¿µÄµÎ¹ÜÖÐÿ¸ôÒ»¶¨Ê±¼ä»áÓÐһСҺµÎÂäÏ£¬½«µÎÆ¿·ÅÔÚ»¬¿éÉÏ£¬È¡Ò»´øÓоùÔȿ̶ÈÏߵij¤Ä¾°å£¬Ä¾°åˮƽ·ÅÖÃʱ£¬»¬¿é·ÅÔÚľ°å×ó¶Ë£¬È»ºóÇáÍÆ»¬¿é£¬¸øËüÒ»ÏòÓҵijõËٶȣ¬½á¹ûÔÚľ°åÉϵõ½ÈçͼbËùʾµÄÒºµÎµã¼££»Èô½«Ä¾°åµÄÓÒ¶ËAÊʵ±Ì§Æð£¬Ê¹Ä¾°åÓëˮƽ·½Ïò³Éa½Ç£¬È»ºóÈû¬¿éÔÚA¶Ë¿ªÊ¼Ï»¬£¬½á¹ûÔÚľ°åÉϵõ½ÈçͼcËùʾµÄÒºµÎµã¼££¬Ôò¸ù¾Ýͼb¡¢c¿É¼ÆËãµÃµ½¶¯Ä¦²ÁÒòÊý¦Ì=                £®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

ÔÚ×ö¡°Ñо¿ÔȱäËÙÖ±ÏßÔ˶¯¡±µÄʵÑéÖУº
(1)ʵÑéÊÒÌṩÁËÒÔÏÂÆ÷²Ä£ºµç´Å´òµã¼ÆʱÆ÷¡¢Ò»¶Ë¸½Óл¬Âֵij¤Ä¾°å¡¢Ð¡³µ¡¢Ö½´ø¡¢Ï¸Éþ¡¢¹³Âë¡¢¿Ì¶È³ß¡¢µ¼ÏߺͿª¹Ø¡¢µÍѹ½»Á÷µçÔ´¡¢¸´Ð´Ö½¡¢µ¯»É²âÁ¦¼Æ¡£ÆäÖÐÔÚ±¾ÊµÑéÖв»ÐèÒªµÄÆ÷²ÄÊÇ________¡£
(2)ÈçͼËùʾ£¬ÊÇijͬѧÓÉ´òµã¼ÆʱÆ÷µÃµ½µÄ±íʾС³µÔ˶¯¹ý³ÌµÄÒ»ÌõÇåÎúÖ½´ø£¬Ö½´øÉÏÁ½ÏàÁÚ¼ÆÊýµã¼ä»¹ÓÐËĸöµãûÓл­³ö£¬´òµã¼ÆʱÆ÷´òµãµÄʱ¼ä¼ä¸ôT£½0.02s£¬ÆäÖÐx1£½7.05cm¡¢x2£½7.68cm¡¢x3£½8.33cm¡¢x4£½8.95cm¡¢x5£½9.61cm¡¢x6£½10.23cm¡£

ϱíÁгöÁË´òµã¼ÆʱÆ÷´òÏÂB¡¢C¡¢FʱС³µµÄ˲ʱËٶȣ¬ÇëÔÚ±íÖÐÌîÈë´òµã¼ÆʱÆ÷´òÏÂD¡¢EÁ½µãʱС³µµÄ˲ʱËٶȣ¨Ð¡Êýµãºó±£ÁôÈýλÊý×Ö£©¡£
λÖÃ
B
C
D
E
F
ËÙ¶È(m¡¤s£­1)
0.737
0.801
 
 
0.992
(3)ÒÔAµãΪ¼ÆʱÆðµã£¬ÔÚ×ø±êͼÖл­³öС³µµÄËٶȡªÊ±¼ä¹ØϵͼÏß¡£
(4)¸ù¾ÝÄã»­³öµÄС³µµÄËٶȡªÊ±¼äµÄ¹ØϵͼÏß¼ÆËã³öµÄС³µµÄ¼ÓËÙ¶Èa£½________m/s2¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÊµÑéÌâ

ÈçͼËùʾΪÑо¿ÔȱäËÙÖ±ÏßÔ˶¯µÄʵÑéÖÐËùÑ¡ÓõÄÒ»¶Î´òµãÖ½´ø£¬´òµã¼ÆʱÆ÷µÄ´òµãÖÜÆÚΪ0.02Ãë¡£ÔÚʵÑéµÃµ½µÄÖ½´øÉÏÈ·¶¨Æ߸ö¼ÆÊýµãA¡¢B¡¢C¡¢D¡¢E¡¢F¡¢G£¬Ã¿Á½¸öÏàÁڵļÆÊýµãÖ®¼ä»¹ÓÐËĸöµãûÓл­³ö£¬²âµÃAB¼äµÄ¾àÀëΪ="3.61cm" ,BC¼äµÄ¾àÀëΪ=4.41cm£¬ CD¼äµÄ¾àÀëΪ=5.20cm£¬DE¼äµÄ¾àÀëΪ=5.99cm£¨¼ÆËã½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©

¢Ù DµãµÄ˲ʱËÙ¶È=           m/s£»
¢ÚС³µµÄ¼ÓËÙ¶È           m/s2¡£

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸