ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³Í¬Ñ§ÔÚ×öÑо¿ÔȱäËÙÖ±ÏßÔ˶¯ÊµÑéʱ£¬»ñÈ¡ÁËÒ»ÌõÖ½´øµÄÒ»²¿·Ö£¬0¡¢1¡¢2¡¢3¡¢4¡¢5¡¢6¡¢7ÊǼÆÊýµã£¬Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸öµã£¨Í¼ÖÐδ±ê³ö£¬´òµãƵÂÊΪ50Hz£©£¬¼ÆÊýµã¼äµÄ¾àÀëÈçͼËùʾ¡£ÓÉÓÚ´ÖÐÄ£¬¸ÃͬѧÍüÁ˲âÁ¿3¡¢4Á½¸ö¼ÆÊýµãÖ®¼äµÄ¾àÀë¡£Çó£º
£¨1£©ÆäÖÐ6ºÅ¼ÆÊýµãµÄ˲ʱËٶȵĴóСv6=________ m/s¡£(±£ÁôÈýλÓÐЧÊý×Ö)
£¨2£©ÀûÓÃÖð²î·¨´¦ÀíÊý¾Ý£¬¼ÆËã³ö»¬¿éµÄ¼ÓËÙ¶Èa=________ m/s2 ¡£(±£ÁôÈýλÓÐЧÊý×Ö)£®
£¨3£©¼ÆÊýµã3¡¢4Ö®¼äµÄ¾àÀëÊÇx4=____________cm¡£(±£ÁôÈýλÓÐЧÊý×Ö)
¡¾´ð°¸¡¿ £¨1£©0.413 m/s £¨2£©0.496 m/s2 £¨3£©2.90 cm£¨2.89~2.91¶¼ÐУ©
¡¾½âÎö¡¿£¨1£©Ã¿ÏàÁÚÁ½¼ÆÊýµã¼ä»¹ÓÐ4¸ö´òµãδ±ê³ö£¬ÔòÖÜÆÚT=0.02¡Á5=0.1s£»Ê±¼äÖеãµÄËٶȵÈÓڸùý³ÌÖеÄƽ¾ùËٶȣ¬
£¨2£©¸ù¾ÝÔȱäËÙÖ±ÏßÔ˶¯µÄÍÆÂÛ£¬½áºÏÖð²î·¨£¬ÄÇô»¬¿éµÄ¼ÓËÙ¶ÈΪ£º
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿