ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿Ä³Í¬Ñ§ÎªÌ½¾¿¡°ºÏÁ¦×ö¹¦ÓëÎïÌ嶯ÄܸıäµÄ¹Øϵ¡±Éè¼ÆÁËÈçÏÂʵÑ飬ËûµÄ²Ù×÷²½ÖèÈçÏ£º

(1)°´Í¼Á¬½ÓʵÑé×°Öã¬ÆäÖÐС³µÖÊÁ¿M=0.20kg£¬¹³Âë×ÜÖÊÁ¿m=0.05kg¡£

(2)ÊÍ·ÅС³µ£¬È»ºó½Óͨ´òµã¼ÆʱÆ÷µÄµçÔ´£¨µçԴƵÂÊΪf=50Hz£©£¬´ò³öÌõÖ½´ø¡£

(3)ËûÔÚ¶à´ÎÖظ´ÊµÑéµÃµ½µÄÖ½´øÖÐÈ¡³ö×ÔÈÏΪÂúÒâµÄÒ»Ìõ£¬ÈçͼËùʾ¡£°Ñ´òϵĵÚÒ»µã¼Ç×÷0£¬È»ºóÒÀ´ÎÈ¡Èô¸É¸ö¼ÆÊýµã£¬ÏàÁÚ¼ÆÊýµã¼ä»¹ÓÐ4¸öµãδ»­³ö£¬ÓÃÀåÃ׿̶ȳ߲âµÃ¸÷¼ÆÊýµãµ½0µã¾àÀë·Ö±ðΪd1=0.041m£¬d2=0.055m£¬d3=0.167m£¬d4=0.256m£¬d5=0.360m£¬d6=0.480m¡£Ëû°Ñ¹³ÂëÖØÁ¦×÷ΪС³µËùÊܺÏÁ¦£¨µ±µØÖØÁ¦¼ÓËÙ¶ÈgÈ¡9.8m/s2£©£¬Ëã³ö´òÏ¡°0¡±µãµ½´òÏ¡°5¡±µãÕâÒ»¹ý³ÌÖкÏÁ¦×ö¹¦W=____J£¨½á¹û±£ÁôÈýλÓÐЧÊý×Ö£©£¬´Ë¹ý³ÌµÄ¶¯ÄܸıäÁ¿µÄ±í´ïʽΪEk=______£¨ÓÃÏà¹ØÊý¾ÝÇ°×ÖĸÁÐʽ£©£¬ËãµÃEk=0.125J¡£

(4)´Ë´ÎʵÑé̽¾¿µÄ½á¹ûÆ«²îºÜ´ó£¬Ã»Äܵõ½¡°ºÏÁ¦¶ÔÎïÌå×öµÄ¹¦µÈÓÚÎïÌ嶯Äܵı仯¡±ÕâÒ»½áÂÛ¡£Í¨¹ý·´Ë¼£¬ËûÈÏΪ²úÉú½Ï´óÆ«²îµÄÔ­ÒòÈçÏ£¬ÆäÖпÉÄܵÄÊÇ___________¡£

A£®Ã»ÓÐƽºâĦ²ÁÁ¦£¬Ê¹µÃºÏÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à

B£®¹³ÂëÖÊÁ¿Ã»ÓÐԶСÓÚС³µÖÊÁ¿£¬Ê¹µÃºÏÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à

C£®ÏÈÊÍ·ÅС³µºó½Óͨ´òµç¼ÆʱÆ÷£¬Ê¹µÃ¶¯Äܱ仯Á¿µÄ²âÁ¿Öµ±ÈÕæʵֵƫС

D£®¼ÆËã¡°5¡±µãµÄ˲ʱËÙ¶Èʱ£¬Á½¼ÆÊýµã¼äʱ¼ä¼ä¸ôÎóÈ¡ÁË0.08s

¡¾´ð°¸¡¿0.176 AB

¡¾½âÎö¡¿

(3)[1]°Ñ¹³ÂëÖØÁ¦×÷ΪС³µËùÊܺÏÁ¦£¬´òÏ¡°0¡±µãµ½´òÏ¡°5¡±µãÕâÒ»¹ý³ÌÖкÏÁ¦×ö¹¦

[2]ÏàÁÚ¼ÆÊýµã¼ä»¹ÓÐ4¸öµãδ»­³ö£¬Ôò¼ÆÊýµã¼äʱ¼äµã¸ôΪ£¬´òÏ¡°5¡±µãʱС³µµÄËÙ¶È

´òÏ¡°0¡±µãµ½´òÏ¡°5¡±µãÕâÒ»¹ý³ÌÖУ¬Ð¡³µ¶¯ÄܸıäÁ¿

(4) AB£®¹³ÂëÖÊÁ¿Ã»ÓÐԶСÓÚС³µÖÊÁ¿£¬¹³ÂëС½µµÄ¼ÓËٶȽϴó£¬ÉþÖÐÀ­Á¦Ð¡ÓÚ¹³ÂëÖØÁ¦£¬ÓÖûÓÐƽºâĦ²ÁÁ¦£¬¹³ÂëÖØÁ¦£¨²âÁ¿µÄºÏÁ¦£©´óÓÚС³µËùÊܵÄÕæʵºÏÁ¦£¨ÉþÖÐÀ­Á¦¼õȥĦ²ÁÁ¦£©£¬Ê¹µÃºÏÁ¦¶ÔÎïÌå×ö¹¦µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´óÌ«¶à£¬¹ÊABÏîÕýÈ·£»

C£®ÏÈÊÍ·ÅС³µºó½Óͨ´òµç¼ÆʱÆ÷£¬´ò¡°0¡±µãʱС³µ¶¯ÄÜ´óÓÚ0£¬Ê¹µÃ¶¯Äܱ仯Á¿µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´ó£¬¹ÊCÏî´íÎó£»

D£®¼ÆËã¡°5¡±µãµÄ˲ʱËÙ¶Èʱ£¬Á½¼ÆÊýµã¼äʱ¼ä¼ä¸ôÎóÈ¡ÁË0.08s£¬»áʹ²âÁ¿µÄËÙ¶ÈÆ«´ó£¬Ê¹µÃ¶¯Äܱ仯Á¿µÄ²âÁ¿Öµ±ÈÕæʵֵƫ´ó£¬¹ÊDÏî´íÎó¡£

¹ÊÑ¡AB¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø