Èçͼ£¬ÊúֱƽÐÐÖ±ÏßΪÔÈÇ¿µç³¡µÄµç³¡Ïߣ¬µç³¡·½Ïòδ֪£¬Ò»¸öÖÊÁ¿Îªm¡¢µçºÉÁ¿ÎªqµÄ´ø¸ºµçÁ£×ÓÒÔ³õËÙ¶Èvo´ÓAµã´¹Ö±µç³¡·½Ïò½øÈëµç³¡£¬¸Ã´øµçÁ£×Ó¾­¹ýµç³¡ÖеÄBµãºÍCµã£¬²»¿¼ÂÇ´øµçÁ£×ÓµÄÖØÁ¦¡£

£¨1£©ÊÔÈ·¶¨µç³¡Ç¿¶ÈµÄ·½Ïò£»

£¨2£©ÈôÁ£×Ó¹ýCµãʱËÙ¶È·½ÏòÓëˮƽ·½Ïò¼Ð½ÇΪ60¡ã£¬ÊÔÇó´ÓAµãµ½Cµã¹ý³ÌÖе糡Á¦×ö¹¦£»

£¨3£©ÈôÒÑÖªµç³¡Ç¿¶ÈΪE£¬ABÁ½µãÁ¬ÏßÓëµç³¡Ï߼нÇΪ60¡ã£¬ÇóÁ£×Ó´ÓAµãµ½BµãµÄÔ˶¯Ê±¼ä¡£


 (1) µç³¡·½ÏòÊúÖ±ÏòÉÏ  (2)   (3)

£¨1£©ÒòÁ£×Ó´ø¸ºµçÇÒÏòÏÂÆ«×ª£¬µç³¡Á¦·½ÏòÏòÏ£¬¹Êµç³¡·½ÏòÊúÖ±ÏòÉÏ¡£¡­¡­¡­¡­¡­¢Ù

£¨2£©ÉèÁ£×Óµ½´ïCµãµÄËÙ¶ÈΪv£¬µç³¡Á¦×ö¹¦ÎªW£¬Ôò

ÓɺÏÔ˶¯Óë·ÖÔ˶¯µÄ¹ØÏµÓР      ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢Ú

Óɶ¯Äܶ¨ÀíÓР           ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢Û

ÁªÁ¢¢Ù¢Úʽ½âµÃ                   ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢Ü

£¨3£©Á£×ÓÔڵ糡ÖÐ×öÀàÆ½Å×Ô˶¯£¬Éèˮƽ·½ÏòµÄÎ»ÒÆÎªx£¬ÊúÖ±·½ÏòµÄÎ»ÒÆÎªy£¬Ôò¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢Ý

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢Þ

Á£×ӵļÓËÙ¶ÈΪ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢ß

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢à

ÁªÁ¢¢Ü¢Ý¢Þ¢ßʽ½âµÃ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¢á


Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


ÏÂÁÐ˵·¨ÖÐÕýÈ·µÄÊÇ£¨              £©                                                

¡¡   A£®  Ô­×ӵĺËʽ½á¹¹Ä£ÐÍÊÇÓÉÌÀÄ·Ñ·ÔÚaÁ£×ÓÉ¢ÉäʵÑé»ù´¡ÉÏÌá³öµÄ

¡¡   B£®  ½«·ÅÉäÐÔÔªËØ²ôÔÓµ½ÆäËûÎȶ¨ÔªËØÖУ¬²¢½µµÍζȣ¬ËüµÄ°ëË¥ÆÚ²»·¢Éú¸Ä±ä

¡¡   C£®  ¹âµçЧӦ֤ʵÁ˹â¾ßÓв¨¶¯ÐÔ

¡¡   D£®  Ì«ÑôÄÚ²¿·¢ÉúµÄºË·´Ó¦ÊÇÁѱ䷴Ӧ

                                                                                                     

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


ΪÁ˲ⶨһ¸ùÇᵯ»ÉѹËõ×î¶Ìʱ´¢´æµÄµ¯ÐÔÊÆÄÜ´óС£¬¿ÉÒÔ½«µ¯»É¹Ì¶¨ÔÚÒ»¸ö´ø¹â»¬°¼²ÛµÄÖ±¹ìµÀµÄÒ»¶Ë£¬²¢½«¹ìµÀ¹Ì¶¨ÔÚˮƽ×ÀÃæµÄ±ßÔµÉÏ£¬ÈçͼËùʾ£¬ÓøÖÇò½«µ¯»ÉѹËõÖÁ×î¶Ì£¬È»ºóͻȻÊÍ·Å£¬¸ÖÇò½«ÑعìµÀ·É³ö×ÀÃæ£¬ÊµÑéʱ£º                                                                                                                                  

£¨1£©ÐèÒªÖ±½Ó²â¶¨µÄÎïÀíÁ¿ÊÇ                                                                                      

£¨2£©¼ÆË㵯»É×î¶Ìʱµ¯ÐÔÊÆÄܵĹØÏµÊ½ÊÇEp=                                                 £®£¨ÓÃÖ±½Ó²âÁ¿µÄÁ¿±íʾ£©       

                                                                                                        

                                                                                                                                     

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


Á½¸öÏàͬµÄ½ðÊôСÇòA¡¢B£¬Ëù´øµÄµçÁ¿q A£½+qo¡¢B£½£­7qo£¬Ïà¾àr·ÅÖÃʱ£¬Ï໥×÷ÓõÄÒýÁ¦´óСΪF¡£ÏÖ½«AÇòÓëBÇò½Ó´¥£¬ÔÙ°ÑA¡¢BÁ½Çò¼äµÄ¼ä¾àÔö´óµ½2r£¬ÄÇôA¡¢BÖ®¼äµÄÏ໥×÷ÓÃÁ¦½«±äΪ

A£®³âÁ¦¡¢                                 B£®³âÁ¦¡¢

C£®ÒýÁ¦¡¢                                 D£®ÒýÁ¦¡¢

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


Èçͼ£¬´øµçºÉÁ¿Îª£«q¡¢ÖÊÁ¿ÎªmµÄ»¬¿é£¬Ñع̶¨µÄ¾øÔµÐ±ÃæÔÈËÙÏ»¬¡£ÏÖ¼ÓÉÏÒ»ÊúÖ±ÏòÉϵÄÔÈÇ¿µç³¡£¬µç³¡Ç¿¶ÈΪE£¬ÇÒqE£¼mg¡£ÎïÌåÑØÐ±ÃæÏ»¬µÄ¹ý³ÌÖУ¬ÒÔÏÂ˵·¨ÕýÈ·µÄÊÇ

A£®»¬¿é½«ÑØÐ±Ãæ¼õËÙÏ»¬

B£®»¬¿éÈÔÑØÐ±ÃæÔÈËÙÏ»¬

C£®¼Óµç³¡Ç°£¬ÏµÍ³»úеÄÜÊØºã

D£®¼Óµç³¡ºó£¬ÖØÁ¦ÊÆÄܵļõÉÙÁ¿´óÓÚµçÊÆÄܵÄÔö¼ÓÁ¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


ÏÂÁÐ˵·¨ÖзûºÏÎïÀíʷʵµÄÊÇ£¨   £©                                                                

¡¡   A£®  ÂêÀö¾ÓÀïÊ×ÏÈÌá³öÔ­×ӵĺËʽ½á¹¹Ñ§Ëµ

¡¡   B£®  ÌÀÄ·Éúͨ¹ý¶ÔÒõ¼«ÉäÏßµÄÑо¿·¢ÏÖÁ˵ç×Ó£¬´Ó¶øÖ¤Ã÷ÁËÔ­×Ӻ˿ÉÔÙ·Ö

¡¡   C£®  ÆÕÀÊ¿ËÔÚ1900Äê°ÑÄÜÁ¿×ÓÒýÈëÎïÀíѧ£¬ÕýÈ·µØÆÆ³ýÁË¡°ÄÜÁ¿Á¬Ðø±ä»¯¡±µÄ´«Í³¹ÛÄî

¡¡   D£®  °®Òò˹̹Ϊ½âÊ͹âµçЧӦµÄʵÑ鹿ÂÉÌá³öÁ˹â×Ó˵

                                                                                                                                   

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


ÈçͼËùʾΪ¡°ÅöײÖе͝Á¿Êغ㡱ʵÑé×°ÖÃʾÒâͼ£®

£¨1£©ÈëÉäСÇò1Óë±»ÅöСÇò2Ö±¾¶Ïàͬ£¬¾ùΪd£¬ËüÃǵÄÖÊÁ¿Ïà±È½Ï£¬Ó¦ÊÇ m1 m2£®

£¨2£©²»·ÅСÇò2£¬ÈÃÇò1´Ó»¬²ÛµÄGµãÓɾ²Ö¹¹öÏ£¬Æ½Å׺óÂäµãΪ £®

£¨3£©·ÅÉÏÇò2£¬ÈÃÇò1´Ó»¬²ÛµÄGµãÓɾ²Ö¹¹öÏ£¬Åöײºó·Ö±ðƽÅ×£¬Çò1µÄÂäµãΪ £®Çò2µÄÂäµãΪ £®

£¨4£©¿´ ºÍ ÊÇ·ñÏàµÈ£¬ÒÔÑéÖ¤¶¯Á¿Êغ㣮

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


ÈçͼΪ¡°Ñé֤ţ¶ÙµÚ¶þ¶¨ÂÉ¡±µÄʵÑé×°ÖÃʾÒâͼ£®É°ºÍɰͰµÄ×ÜÖÊÁ¿Îªm£¬Ð¡³µºÍíÀÂëµÄ×ÜÖÊÁ¿ÎªM.ʵÑéÖÐÓÃɰºÍɰͰ×ÜÖØÁ¦µÄ´óС×÷ΪϸÏß¶ÔС³µÀ­Á¦µÄ´óС£®

(1)ʵÑéÖУ¬ÎªÁËʹϸÏß¶ÔС³µµÄÀ­Á¦µÈÓÚС³µËùÊܵĺÏÍâÁ¦£¬Ïȵ÷½Ú³¤Ä¾°åÒ»¶Ë»¬Âֵĸ߶ȣ¬Ê¹Ï¸ÏßÓ볤ľ°åƽÐУ®½ÓÏÂÀ´»¹ÐèÒª½øÐеÄÒ»Ïî²Ù×÷ÊÇ (¡¡¡¡)£®

A£®½«³¤Ä¾°åˮƽ·ÅÖã¬ÈÃС³µÁ¬×ÅÒѾ­´©¹ý´òµã¼ÆÊ±Æ÷µÄÖ½´ø£¬¸ø´òµã¼ÆÊ±Æ÷ͨµç£¬µ÷½ÚmµÄ´óС£¬Ê¹Ð¡³µÔÚɰºÍɰͰµÄÇ£ÒýÏÂÔ˶¯£¬´Ó´ò³öµÄÖ½´øÅжÏС³µÊÇ·ñ×öÔÈËÙÔ˶¯

B£®½«³¤Ä¾°åµÄÒ»¶ËµæÆðÊʵ±µÄ¸ß¶È£¬ÈÃС³µÁ¬×ÅÒѾ­´©¹ý´òµã¼ÆÊ±Æ÷µÄÖ½´ø£¬³·È¥É°ºÍɰͰ£¬¸ø´òµã¼ÆÊ±Æ÷ͨµç£¬ÇáÍÆÐ¡³µ£¬´Ó´ò³öµÄÖ½´øÅжÏС³µÊÇ·ñ×öÔÈËÙÔ˶¯

C£®½«³¤Ä¾°åµÄÒ»¶ËµæÆðÊʵ±µÄ¸ß¶È£¬³·È¥Ö½´øÒÔ¼°É°ºÍɰͰ£¬ÇáÍÆÐ¡³µ£¬¹Û²ìÅжÏС³µÊÇ·ñ×öÔÈËÙÔ˶¯

(2) ÔÚ¡°Ñé֤ţ¶ÙµÚ¶þ¶¨ÂÉ¡±µÄʵÑéÖУ¬ÎªÊ¹Ï¸Ïß¶ÔС³µµÄÀ­Á¦µÈÓÚɰ¼°É°Í°µÄ×ÜÖØÁ¦£¬Ó¦Âú×ãM     m£¨Ìî¡°Ô¶´óÓÚ¡±¡¢¡°Ô¶Ð¡ÓÚ¡±»ò¡°µÈÓÚ¡±£©

(3)ÏÂͼÊÇʵÑéÖеõ½µÄÒ»ÌõÖ½´ø£¬A¡¢B¡¢C¡¢D¡¢E¡¢F¡¢GΪ7¸öÏàÁڵļÆÊýµã£¬ÏàÁÚµÄÁ½¸ö¼ÆÊýµãÖ®¼ä»¹ÓÐËĸöµãδ»­³ö£¬Á¿³öÏàÁڵļÆÊýµãÖ®¼äµÄ¾àÀë·Ö±ðΪ£ºsAB£½4.22cm¡¢sBC£½4.65cm¡¢sCD£½5.08cm¡¢sDE£½5.49cm£¬sEF£½5.91cm£¬sFG£½6.34cm.ÒÑÖª´òµã¼ÆÊ±Æ÷µÄ¹¤×÷ƵÂÊΪ50 Hz£¬ÔòС³µµÄ¼ÓËÙ¶È´óСa£½________m/s2.(½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö)£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º


»¬°åÒÔijһ³õËÙ¶ÈÔÚˮƽ±ùÃæÉÏ»¬ÐÐÒ»¶Î¾àÀëºóͣϣ¬ÒÔÏÂ˵·¨ÕýÈ·µÄÊÇ£¨          £©                 

¡¡   A£®  ³åÁ¦¶Ô»¬°å×öÕý¹¦£¬Ä¦²ÁÁ¦¶Ô»¬°å×ö¸º¹¦

¡¡   B£®  ÖØÁ¦¶Ô»¬°å×öÕý¹¦£¬Ö§³ÖÁ¦¶Ô»¬°å×ö¸º¹¦

¡¡   C£®  ÖØÁ¦¶Ô»¬°å×ö¸º¹¦£¬Ö§³ÖÁ¦¶Ô»¬°å×öÕý¹¦

¡¡   D£®  Ħ²ÁÁ¦¶Ô»¬°å×ö¸º¹¦£¬ÖØÁ¦ºÍÖ§³ÖÁ¦¶¼²»×ö¹¦

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸