ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿ÈçͼËùʾ£¬MNÊÇÒ»¶ÔƽÐнðÊô°å£¬°å¼äµçѹU1£½104 V¡£PQÊÇÁíÒ»¶ÔƽÐнðÊô°å£¬P°å½ÓµçÔ´Õý¼«£¬Q°å½ÓµçÔ´¸º¼«£¬°å¼äµçѹΪU2£¬°å³¤L1£½0.24 m£¬°å¼ä¾àÀëd£½0.16 m£¬°å¼ä»¹´æÔÚ´¹Ö±Ö½Ãæ·½ÏòµÄÔÈÇ¿´Å³¡(δ»­³ö)£¬½ðÊô°åÓÒ²àÓÐÒ»ÊúÖ±·ÅÖõÄÓ«¹âÆÁ£¬ÆÁÓëPQ×îÓҶ˵ľàÀëL2£½0.16 m¡£ÓÐÒ»´øµçºÉÁ¿q£½10£­5 C¡¢ÖÊÁ¿m£½2¡Á10£­11 kgµÄ´ø¸ºµçÁ£×Ó£¬´ÓM°åÎÞ³õËٶȽøÈë¼ÓËٵ糡£¬»ñµÃÒ»¶¨ËٶȺó£¬ÑØÐéÏß·½Ïò½øÈë½ðÊô°åPQÖ®¼ä£¬Ç¡ÄÜÑØÐéÏß·½Ïò×öÖ±ÏßÔ˶¯£¬×îÖÕ´òÔÚÓ«¹âÆÁÉϵÄOµã¡£ÐéÏßÊǽðÊô°åPQµÄÖÐÐÄÏß¡£tan 37¡ã£½0.75£¬²»¼ÆÁ£×ÓÖØÁ¦¡£

£¨1£©ÇóÁ£×Ó½øÈëPQ°å¼äʱµÄËٶȴóС¼°°å¼ä´Å³¡µÄ·½Ïò£»

£¨2£©Èô½ö³·È¥µçѹU2£¬·¢ÏÖÁ£×ÓÇ¡ÄÜ´Ó½ðÊô°åP¡¢QµÄÓҶ˵ãÀ뿪£¬»÷ÖÐÓ«¹âÆÁÉÏAµã£¬ÇóµçѹU2µÄ´óС£»

£¨3£©Èô½ö³·È¥´Å³¡£¬ÊÔÅжÏÁ£×ÓÄÜ·ñ»÷ÖÐÓ«¹âÆÁ¡£ÈôÄÜ£¬¼ÙÉè»÷ÖеãΪA¡ä£¬ÇóµÚ(2)ÎÊÖеĻ÷ÖеãÓëA¡äµãÖ®¼äµÄ¾àÀ룻Èô²»ÄÜ£¬ÇóÁ£×Ó´òÔÚPQ°åÉϵÄλÖÃÓëPQ°åÓҶ˵ľàÀë¡£

¡¾´ð°¸¡¿£¨1£©105 m/s ´¹Ö±Ö½ÃæÏòÀï £¨2£©8¡Á103 V £¨3£©ÄÜ 0.368 m

¡¾½âÎö¡¿

(1)¸ù¾Ý¶¯Äܶ¨ÀíÓÐ

½âµÃ

Á£×Ó´ø¸ºµç£¬ÔÚP¡¢Q°å¼äÔ˶¯Ê±£¬ËùÊܵ糡Á¦·½ÏòÏòÉÏ£¬ÔòÂåÂ××ÈÁ¦·½ÏòÏòÏ£¬ÓÉ×óÊÖ¶¨Ôò¿ÉÅжϣ¬°å¼ä´Å³¡µÄ·½Ïò´¹Ö±Ö½ÃæÏòÀï¡£

(2)ÓÉÌâÒâ¿ÉÖª£¬Á£×ÓÊܵ½µÄµç³¡Á¦ºÍÂåÂ××ÈÁ¦´óСÏàµÈ£¬·½ÏòÏà·´£¬Èô½ö³·È¥µçѹU2£¬ÔòÁ£×ÓµÄÔ˶¯¹ì¼£ÈçͼËùʾ£¬¸ù¾Ý¼¸ºÎ֪ʶ£¬

£¬

£¬

µÃ

£¬

Ô²ÐĽÇ

¦È£½37¡ã

´øµçÁ£×ÓÔڴų¡ÖÐ×öÔ²ÖÜÔ˶¯£¬ÂåÂ××ÈÁ¦ÌṩÏòÐÄÁ¦£¬¼´

£¬

µÃ

B£½0.5 T

ÓÉÓÚ£¬µÃ

U2£½8¡Á103 V¡£

(3)Èô½ö³·È¥µç³¡£¬Á£×Ó»÷ÖеãÀëOµãµÄ¾àÀë

£¬

Èô½ö³·È¥´Å³¡£¬Á£×ÓÔÚP¡¢QÖ®¼ä×öÀàƽÅ×Ô˶¯£¬ÊúÖ±·½ÏòµÄÆ«ÒÆÁ¿

£¬

¹ÊÄÜ»÷ÖÐÓ«¹âÆÁ£¬ÈçͼËùʾ¡£

ÔòÓÐ

£¬

Ôò

l£½0.168 m

Á½µãÖ®¼äµÄ¾àÀë

AA¡ä£½0.368 m£»

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

¡¾ÌâÄ¿¡¿ÈçͼËùʾΪ¡°ÑéÖ¤¶¯Á¿Êغ㶨ÂÉ¡±ÊµÑéµÄ×°ÖÃʾÒâͼ£¬ÏÖÓдø¹â»¬Ô²»¡¹ìµÀµÄ´Ö²Úˮƽ×ÀÃ棬Îï¿éA¡¢B£¨AµÄÖÊÁ¿´óÓÚBµÄÖÊÁ¿£©¡£ÊµÑé²Ù×÷²½ÖèÈçÏ£º

£¨a£©ÔÚÔ²»¡¹ìµÀÉϾàÀë×ÀÃæh¸ß´¦ÈÃAÓɾ²Ö¹»¬Ï£¬ÔÚˮƽ×ÀÃæÉϲ»·ÅBµÄÇé¿öÏ£¬Ê¹AÒ»Ö±ÑØˮƽ×ÀÃæÔ˶¯µ½C´¦¾²Ö¹£»

£¨b£©ÔÙÈÃA´ÓÔ²»¡¹ìµÀÉϾàÀë×ÀÃæh¸ß´¦Óɾ²Ö¹»¬Ï£¬ÔÚ×ÀÃæÓ뻡¹ìµÀÏà½Ó´¦·ÅÉÏB£¬Ê¹AÓëBÅöײ£¬ÅöײºóÈÃAB¼ÌÐøÔ˶¯Ö±ÖÁ·Ö±ðÍ£ÉÏÔÚD¡¢E´¦£»

£¨c£©Öظ´¶à´ÎÒÔÉÏʵÑé²½Ö裬²¢¼Ç¼ʵÑéÊý¾Ý£¬Ñ¡È¡×Ô¼ºÈÏΪ×îÀíÏëµÄʵÑé½á¹û½øÐÐÑо¿£¬¸ù¾Ý¸ÃʵÑéÉè¼Æ£¬»Ø´ðÏÂÁÐÎÊÌ⣺

£¨1£©ÊµÑéÖгýÁËÒª²âÁ¿Îï¿éAµÄÖÊÁ¿m1£¬Îï¿éBµÄÖÊÁ¿m2£¬»¹Ðè²âÁ¿µÄÎïÀíÁ¿ÓÐ_____£»£¨Ð´³öÎïÀíÁ¿Ãû³Æ¼°±íʾ·ûºÅ£©£»¾ÝʵÑé²âÁ¿³öµÄÊý¾ÝºÍ²âÁ¿µÄÎïÀíÁ¿Ð´³ö¿ÉÒÔÑéÖ¤¶¯Á¿Êغ㶨Âɵıí´ïʽ_____£»

£¨2£©¹ØÓÚÎó²î·ÖÎöºÍʵÑé²âÁ¿£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ_____

A£®AÓëB·¢Éúµ¯ÐÔÅöײ»¹ÊǷǵ¯ÐÔÅöײ£¬¶ÔʵÑé½á¹ûÓÐÒ»¶¨µÄÓ°Ïì

B£®Èç¹ûAÓëB·¢ÉúµÄÅöײ²»ÊÇÕýÅö¶ÔʵÑé½á¹ûÓÐÒ»¶¨µÄÓ°Ïì

C£®ÊµÑéÖÐËùÓõÄÔ²»¡¹ìµÀ²»ÊÇÕæÕýµÄ¹â»¬£¬¶ÔʵÑéµÄ½á¹ûÓ°Ïì²»´ó

D£®ÊµÑéÖбØÐë²âÁ¿AÆðʼλÖþàÀë×ÀÃæµÄ¸ß¶È

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

¾«Ó¢¼Ò½ÌÍø