ÌâÄ¿ÄÚÈÝ
2£®Ì½¾¿ÔȱäËÙÖ±ÏßÔ˶¯ÊµÑ飬ÇëÔÚÏÂÃæÁгöµÄʵÑéÆ÷²ÄÖУ¬Ñ¡³ö±¾ÊµÑéÖв»ÐèÒªµÄÆ÷²ÄÌîÔÚºáÏßÉÏ£¨Ìî±àºÅ£©£º¢Ú¢Ü¢ß¢Ù´òµã¼ÆʱÆ÷ ¢ÚÌìƽ ¢ÛµÍѹ½»Á÷µçÔ´ ¢ÜµÍѹֱÁ÷µçÔ´
¢ÝϸÉþºÍÖ½´ø ¢Þ¹³ÂëºÍС³µ ¢ßÃë±í ¢àÒ»¶ËÓл¬Âֵij¤Ä¾°å ¢á¿Ì¶È³ß
£¨2£©°ÑÖ½´øµÄ϶˹̶¨ÔÚÖØÎïÉÏ£¬É϶ËÓÃÊÖÌá×Å£¬Ö½´ø´©¹ý´òµã¼ÆʱÆ÷£¬½ÓͨµçÔ´ºó½«Ö½´øÊÍ·Å£¬ÖØÎï±ãÀ×ÅÖ½´øÏÂÂ䣮ֽ´ø±»´ò³öһϵÁе㣬ÆäÖÐÓÐÒ»¶ÎÈçͼ£¬Ö½´øµÄÄĶËÓëÖØÎïÏàÁ¬£¿×󣮣¨Ìî×ó¶Ë»òÓҶˣ©
£¨3£©ÈôµçÔ´µÄƵÂÊΪ50Hz£¬ÊµÑéÕßÔÚ´¦ÀíʵÑéÊý¾Ýʱ£¬½«Ã¿¸ô3¸ö¼ÆʱµãÈ¡Ò»¸ö¼ÆÊýµã£¬ÔòÿÁ½¸ö¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôӦΪ0.08s£»Èç¹ûÔڲⶨÔȱäËÙÖ±ÏßÔ˶¯µÄ¼ÓËÙ¶Èʱ£¬ÊµÑéÕßÈç²»ÖªµÀ¹¤×÷µçѹµÄƵÂʱäΪСÓÚ50Hz£¬ÕâÑù¼ÆËã³öµÄ¼ÓËÙ¶ÈÖµÓëÕæʵֵÏà±ÈÊÇÆ«´ó£¨Ìî¡°Æ«´ó¡±¡¢¡°Æ«Ð¡¡±»ò¡°²»±ä¡±£©£®
·ÖÎö £¨1£©¸ù¾ÝʵÑéÄ¿µÄÃ÷ȷʵÑé²½ÖèºÍËùÒª²âÁ¿µÄÎïÀíÁ¿£¬¼´¿ÉÖªµÀʵÑéËùÐèÒªµÄʵÑéÆ÷²Ä£»
£¨2£©¸ù¾ÝÏàµÈʱ¼ä¼ä¸ôµÄλÒƱä´óÈ·¶¨Ö½´øµÄÄÄÒ»¶ËÓëÖØÎïÏàÁ¬£»
£¨3£©¸ù¾Ý²âÁ¿ÖÜÆڵı仯£¬½áºÏ¡÷x=aT2È·¶¨¼ÓËٶȲâÁ¿ÖµµÄ±ä»¯£»
½â´ð ½â£º£¨1£©ÔÚ±¾ÊµÑéÖв»ÐèÒª²âÁ¿Ð¡³µ»òíÀÂëµÄÖÊÁ¿Òò´Ë²»ÐèÒªÌìƽ£¬µç´Å´òµã¼ÆʱÆ÷ʹÓõÄÊǵÍѹ½»Á÷µçÔ´£¬Òò´ËµÍѹֱÁ÷µçÔ´±¾ÊµÑéÖв»ÐèÒª£¬Í¬Ê±´òµã¼ÆʱÆ÷¼Ç¼ÁËС³µÔ˶¯Ê±¼ä£¬Òò´Ë²»ÐèÒªÃë±í£®¹Ê²»ÐèÒªµÄÆ÷²ÄΪ£º¢Ú¢Ü¢ß£®
£¨2£©ÖØÎïÀ×ÅÖ½´øÔÚÏàµÈʱ¼äÄÚµÄλÒÆÔ½À´Ô½´ó£¬¿ÉÖªÖ½´øµÄ×ó¶ËÓëÖØÎïÏàÁ¬£»
£¨3£©µçÔ´µÄƵÂÊΪ50Hz£¬Ôòÿ¸ô0.02s´òÒ»¸öµã£¬Ã¿¸ô3¸ö¼ÆʱµãÈ¡Ò»¸ö¼ÆÊýµã£¬ÔòÿÁ½¸ö¼ÆÊýµã¼äµÄʱ¼ä¼ä¸ôΪ0.08s£»¸ù¾Ýa=$\frac{¡÷x}{{T}^{2}}$Öª£¬¹¤×÷µçѹµÄƵÂÊСÓÚ50Hz£¬Ôò²âµÃµÄÖÜÆÚÆ«´ó£¬²âµÃ¼ÓËٶȱÈÕæʵֵƫ´ó£®
¹Ê´ð°¸Îª£º£¨1£©¢Ú¢Ü¢ß£¨2£©×ó¶Ë £¨3£©0.08 Æ«´ó
µãÆÀ ±¾Ì⿼²é̽¾¿ÔȱäËÙÖ±ÏßÔ˶¯ÊµÑ飻 ½â¾ö±¾ÌâµÄ¹Ø¼üÔÚÓÚÕÆÎÕÖ½´øµÄ´¦Àí£¬»áͨ¹ýÖ½´øÇó½â˲ʱËٶȺͼÓËٶȣ¬¹Ø¼üÊÇÔȱäËÙÖ±ÏßÔ˶¯Á½¸öÖØÒªÍÆÂÛµÄÕýÈ·ÔËÓã®
A£® | µçÔ´µÄµç¶¯ÊƵÈÓÚÄÚ¡¢Íâµç·µçÊƽµÖ®ºÍ | |
B£® | µç¶¯ÊƱíʾµçÔ´½«ÕýµçºÉ´Ó¸º¼«ÒÆË͵½Õý¼«Ê±£¬·Ç¾²µçÁ¦Ëù×öµÄ¹¦ | |
C£® | ÔÚµçÔ´ÄÚ²¿£¬µçÔ´ÒÀ¿¿·Ç¾²µçÁ¦°áÔ˵çºÉ | |
D£® | µ±µç·ÖÐͨ¹ý1CµçºÉÁ¿Ê±£¬µçÔ´ÏûºÄµÄÆäËûÐÎʽÄܵÄÊýÖµµÈÓÚµçÔ´µç¶¯ÊƵÄÖµ |
A£® | a¡¢bΪÒìÖÖµçºÉ£¬aµÄµçºÉÁ¿´óÓÚbµÄµçºÉÁ¿ | |
B£® | a¡¢bΪͬÖÖµçºÉ£¬aµÄµçºÉÁ¿Ð¡ÓÚbµÄµçºÉÁ¿ | |
C£® | C¡¢DÁ½µã´¦µÄµç³¡Ç¿¶ÈÏàͬ | |
D£® | Ò»ÊÔ̽µçºÉÑØÐéÏßÔ˶¯£¬µç³¡Á¦×ö¹¦²»Îª0 |
A£® | µ±·ÅÈëÕýµçºÉʱ£¬¸Ãµã³¡Ç¿ÏòÓÒ£¬µ±·ÅÈ븺µçºÉʱ£¬¸Ãµã³¡Ç¿Ïò×ó | |
B£® | ¸ÃµãµÄ³¡Ç¿·½ÏòÒ»¶¨Ïò×ó | |
C£® | ¸ÃµãµÄ³¡Ç¿·½ÏòÒ»¶¨ÏòÓÒ | |
D£® | ¸ÃµãµÄ³¡Ç¿·½Ïò¿ÉÄÜÏòÓÒ¡¢Ò²¿ÉÄÜÏò×ó |
A£® | ´ÓAµ½BÒƶ¯1CµÄÕýµçºÉ£¬¾²µç³¡Á¦×ö¹¦1J | |
B£® | ´ÓAµ½BÒƶ¯1CµÄ¸ºµçºÉ£¬¾²µç³¡Á¦×ö¹¦1J | |
C£® | ´ÓBµ½AÒƶ¯1CµÄ¸ºµçºÉ£¬¾²µç³¡Á¦×ö¹¦1J | |
D£® | ´ÓAµ½BÒƶ¯1CµÄÕýµçºÉ£¬¾²µç³¡Á¦×ö¹¦-1J |
A£® | ÔÚ²»ÐèÒª¿¼ÂÇÎïÌå´óСºÍÐÎ״ʱ£¬ÓÃÖʵãÀ´´úÌæÎïÌåµÄ·½·¨½Ð¼ÙÉè·¨ | |
B£® | ƽ¾ùËٶȡ¢Ë²Ê±ËÙ¶ÈÒÔ¼°¼ÓËٶȵĸÅÄîÊÇÓÉÙ¤ÀûÂÔ½¨Á¢µÄ | |
C£® | Á¦µÄ¸ÅÄîÊÇÓÉÑÇÀïÊ¿¶àµÂ½¨Á¢µÄ | |
D£® | ×ÔÈ»½çµÄËÄÖÖ»ù±¾Ï໥×÷ÓÃÊÇ£ºÍòÓÐÒýÁ¦¡¢Ä¦²ÁÁ¦¡¢Ç¿Ï໥×÷Óá¢ÈõÏ໥×÷Óà |
A£® | a¿ËÀ×êʯËùº¬ÓеķÖ×ÓÊýΪ$\frac{0.2¡Á1{0}^{-3}a{N}_{A}}{M}$ | |
B£® | a¿ËÀ×êʯËùº¬ÓеķÖ×ÓÊýΪ$\frac{0.2a{N}_{A}}{M}$ | |
C£® | ×êʯ·Ö×ÓÖ±¾¶µÄ±í´ïʽΪ$\root{3}{\frac{6M¡Á1{0}^{-3}}{{N}_{A}¦Ñ¦Ð}}$£¨µ¥Î»m£© | |
D£® | ×êʯ·Ö×ÓÖ±¾¶µÄ±í´ïʽΪ$\sqrt{\frac{6M}{{N}_{A}¦Ñ¦Ð}}$£¨µ¥Î»m£© |