ÌâÄ¿ÄÚÈÝ
£¨1£©ÏÂͼµÄÓα꿨³ßµÄ¶ÁÊýÊÇ______mm
£¨2£©ÔÚÑо¿µ¯»ÉµÄÐαäÁ¿ÓëÍâÁ¦¹ØϵµÄʵÑéÖУ¬
½«µ¯»Éˮƽ·ÅÖòâ³öÆä×ÔÈ»³¤¶È£¬È»ºóÊúÖ±Ðü¹ÒÈÃÆä×ÔȻϴ¹£¬ÔÚÆä϶ËÊúÖ±ÏòÏÂÊ©¼ÓÍâÁ¦Ê¬£¬ÊµÑé¹ý³ÌÊÇÔÚµ¯»ÉµÄµ¯ÐÔÏÞ¶ÈÄÚ½øÐеģ®ÓüǼµÄÍâÁ¦FÓ뵯»ÉµÄÐαäÁ¿x×÷³öµÄF-xͼÏóÈçͼËùʾ£¬ÓÉͼ¿ÉÖªµ¯»ÉµÄ¾¢¶ÈϵÊýΪ______N/m
£¨3£©Ä³ÊµÑéС×éÓÃÈçͼËùʾµÄʵÑé×°ÖÃÀ´²âÁ¿Ä¾°å¶ÔÎï¿éµÄĦ²ÁÁ¦Ëù×öµÄ¹¦£®Ò»Îï¿é·ÅÔÚ´Ö²ÚµÄˮƽ³¤Ä¾°åÉÏ£¬ÓÒ²à˨ÓÐһϸÏߣ¬¿ç¹ý¹Ì¶¨ÔÚľ°å±ßÔµµÄ»¬ÂÖÓëÖØ´¸Á¬½Ó£¬Îï¿é×ó²àÓë´©¹ý´òµã¼ÆʱÆ÷µÄÖ½´øÏàÁ¬£¬³¤Ä¾°å¹Ì¶¨ÔÚˮƽʵÑę́ÉÏ£¬
ʵÑéʱ£¬Îï¿éÔÚÖØ´¸Ç£ÒýÏÂÏòÓÒÔËÖØ´¸ÂäµØºó£¬Îï¿é¼ÌÐøÏòÓÒ×ö„ò¼õËÙÔ˶¯£®
¢ÙÏÂͼ¸ø³öÁËÖØ´¸ÂäµØºó´òµã¼ÆʱÆ÷´ò³öµÄÖ½´ø£¬Ö½´øÉϵÄСºÚµãÊǼÆÊýµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÒÑÔÚͼÖбê³ö£¬´òµã¼ÆʱÆ÷ËùÓý»Á÷µçƵÂÊΪ50Hz£¬¸ù¾Ý¸Ãͼ¿ÉÒÔÅжÏÖ½´øµÄ______£¨Ñ¡Ìî¡°×ó¶Ë¡±»ò¡°ÓҶˡ±£©ÓëÎï¿éÏàÁ¬£®´òµã¼ÆʱÆ÷ÔÚ´òÏÂ4µãºÍBµãʱÎï¿éµÄËٶȷֱðΪvA=______m/s£¬vB=______m/s £¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
¢ÚÒ»¸öµçÁ÷¼ÆµÄÂúÆ«µçÁ÷Ig=100¦ÌA£¬ÄÚ×èΪ600¦¸£¬Òª°ÑËü¸Ä×°³ÉÒ»¸öÁ¿³ÌΪ0.6AµÄµçÁ÷±í£¬ÔòÓ¦ÔÚµçÁ÷¼ÆÉÏ______£¨Ìî´®Áª»ò²¢Áª£©Ò»¸öÔ¼______¦¸µÄµç×裨±£ÁôһλÓÐЧÊý×Ö£©
£¨2£©ÔÚÑо¿µ¯»ÉµÄÐαäÁ¿ÓëÍâÁ¦¹ØϵµÄʵÑéÖУ¬
½«µ¯»Éˮƽ·ÅÖòâ³öÆä×ÔÈ»³¤¶È£¬È»ºóÊúÖ±Ðü¹ÒÈÃÆä×ÔȻϴ¹£¬ÔÚÆä϶ËÊúÖ±ÏòÏÂÊ©¼ÓÍâÁ¦Ê¬£¬ÊµÑé¹ý³ÌÊÇÔÚµ¯»ÉµÄµ¯ÐÔÏÞ¶ÈÄÚ½øÐеģ®ÓüǼµÄÍâÁ¦FÓ뵯»ÉµÄÐαäÁ¿x×÷³öµÄF-xͼÏóÈçͼËùʾ£¬ÓÉͼ¿ÉÖªµ¯»ÉµÄ¾¢¶ÈϵÊýΪ______N/m
£¨3£©Ä³ÊµÑéС×éÓÃÈçͼËùʾµÄʵÑé×°ÖÃÀ´²âÁ¿Ä¾°å¶ÔÎï¿éµÄĦ²ÁÁ¦Ëù×öµÄ¹¦£®Ò»Îï¿é·ÅÔÚ´Ö²ÚµÄˮƽ³¤Ä¾°åÉÏ£¬ÓÒ²à˨ÓÐһϸÏߣ¬¿ç¹ý¹Ì¶¨ÔÚľ°å±ßÔµµÄ»¬ÂÖÓëÖØ´¸Á¬½Ó£¬Îï¿é×ó²àÓë´©¹ý´òµã¼ÆʱÆ÷µÄÖ½´øÏàÁ¬£¬³¤Ä¾°å¹Ì¶¨ÔÚˮƽʵÑę́ÉÏ£¬
ʵÑéʱ£¬Îï¿éÔÚÖØ´¸Ç£ÒýÏÂÏòÓÒÔËÖØ´¸ÂäµØºó£¬Îï¿é¼ÌÐøÏòÓÒ×ö„ò¼õËÙÔ˶¯£®
¢ÙÏÂͼ¸ø³öÁËÖØ´¸ÂäµØºó´òµã¼ÆʱÆ÷´ò³öµÄÖ½´ø£¬Ö½´øÉϵÄСºÚµãÊǼÆÊýµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ±ê³ö£©£¬¼ÆÊýµã¼äµÄ¾àÀëÒÑÔÚͼÖбê³ö£¬´òµã¼ÆʱÆ÷ËùÓý»Á÷µçƵÂÊΪ50Hz£¬¸ù¾Ý¸Ãͼ¿ÉÒÔÅжÏÖ½´øµÄ______£¨Ñ¡Ìî¡°×ó¶Ë¡±»ò¡°ÓҶˡ±£©ÓëÎï¿éÏàÁ¬£®´òµã¼ÆʱÆ÷ÔÚ´òÏÂ4µãºÍBµãʱÎï¿éµÄËٶȷֱðΪvA=______m/s£¬vB=______m/s £¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©
¢ÚÒ»¸öµçÁ÷¼ÆµÄÂúÆ«µçÁ÷Ig=100¦ÌA£¬ÄÚ×èΪ600¦¸£¬Òª°ÑËü¸Ä×°³ÉÒ»¸öÁ¿³ÌΪ0.6AµÄµçÁ÷±í£¬ÔòÓ¦ÔÚµçÁ÷¼ÆÉÏ______£¨Ìî´®Áª»ò²¢Áª£©Ò»¸öÔ¼______¦¸µÄµç×裨±£ÁôһλÓÐЧÊý×Ö£©
£¨1£©Óα꿨³ßµÄ¶ÁÊýÓÉÖ÷³ß¶ÁÊý1mmºÍÓαê³ß¶ÁÊý0.94mmÖ®ºÍ£¬ËùÒÔ¶ÁÊýÊÇ1.94mm£®
£¨2£©¸ù¾Ýºú¿Ë¶¨ÂÉÖªµÀ£¬ÓüǼµÄÍâÁ¦FÓ뵯»ÉµÄÐαäÁ¿x×÷³öµÄF-xͼÏóµÄбÂÊΪµ¯»ÉµÄ¾¢¶ÈϵÊý£®
´ÓͼÖÐÇó³öбÂÊk=200N/m£®
£¨3£©¢Ù´¸ÂäµØºó£¬Îï¿é¼ÌÐøÏòÓÒ×ö„ò¼õËÙÔ˶¯£¬ÔÚÖ½´øÉÏ¿ÉÒÔ¿´³ö´ÓÓÒµ½×óÏàÁÚ¼ÆÊýµã¼ä¾àÖð½¥¼õС£¬Ò²¾ÍÊÇÖ½´øËÙ¶ÈÖð½¥¼õС£¬ËùÒÔÖ½´øµÄÓÒ¶ËÓëÎï¿éÏàÁ¬£®
ÀûÓÃÔȱäËÙÖ±ÏßÔ˶¯µÄÍÆÂ۵ãº
vA=
=
=0.718m/s
vB=
=
=0.974m/s
¢ÚµçÁ÷¼Æ¸Ä×°³ÉµçÁ÷±íʱ±ØÐë²¢ÁªÒ»¸ö·ÖÁ÷µç×裬Æä´óСÂú×ãIgRg=£¨I-Ig£©R
½âµÃ£ºR=0.1¦¸£®
¹Ê´ð°¸Îª£º
£¨1£©1.94
£¨2£©200
£¨3£©
¢ÙÓÒ¶Ë
0.718£¬0.974
¢Ú²¢Áª£¬0.1¦¸£®
£¨2£©¸ù¾Ýºú¿Ë¶¨ÂÉÖªµÀ£¬ÓüǼµÄÍâÁ¦FÓ뵯»ÉµÄÐαäÁ¿x×÷³öµÄF-xͼÏóµÄбÂÊΪµ¯»ÉµÄ¾¢¶ÈϵÊý£®
´ÓͼÖÐÇó³öбÂÊk=200N/m£®
£¨3£©¢Ù´¸ÂäµØºó£¬Îï¿é¼ÌÐøÏòÓÒ×ö„ò¼õËÙÔ˶¯£¬ÔÚÖ½´øÉÏ¿ÉÒÔ¿´³ö´ÓÓÒµ½×óÏàÁÚ¼ÆÊýµã¼ä¾àÖð½¥¼õС£¬Ò²¾ÍÊÇÖ½´øËÙ¶ÈÖð½¥¼õС£¬ËùÒÔÖ½´øµÄÓÒ¶ËÓëÎï¿éÏàÁ¬£®
ÀûÓÃÔȱäËÙÖ±ÏßÔ˶¯µÄÍÆÂ۵ãº
vA=
x |
t |
(6.85+7.50)cm |
0.2s |
vB=
x |
t |
(9.42+10.06)cm |
0.2s |
¢ÚµçÁ÷¼Æ¸Ä×°³ÉµçÁ÷±íʱ±ØÐë²¢ÁªÒ»¸ö·ÖÁ÷µç×裬Æä´óСÂú×ãIgRg=£¨I-Ig£©R
½âµÃ£ºR=0.1¦¸£®
¹Ê´ð°¸Îª£º
£¨1£©1.94
£¨2£©200
£¨3£©
¢ÙÓÒ¶Ë
0.718£¬0.974
¢Ú²¢Áª£¬0.1¦¸£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿