ÌâÄ¿ÄÚÈÝ
£¨2013·Ìì½òÊÐÎåÇøÏظßÈýµÚÒ»´ÎÖÊÁ¿µ÷²é£¬9Ì⣩£¨2£©ÓÃÓα꿨³ß²âÁ¿Ò»Ö±¹ÜµÄ³¤¶È£¬ÓÃÂÝÐý²â΢Æ÷²âÁ¿¸ÃÖ±¹ÜµÄÍ⾶£¬²âÁ¿½á¹ûÈç¹û£¬Ö±¹Ü³¤¶ÈΪ cm£¬Ö±¹ÜÍ⾶Ϊ mm¡£
£¨3£©ÔÚ¡°Ñé֤ţ¶ÙÔ˶¯¶¨ÂÉ¡±ÊµÑéÖУ¬ËùÓõÄʵÑé×°ÖÃÈçͼËùʾ¡£ÔÚµ÷Õû´ø»¬ÂÖľ°åµÄÇãб³Ì¶Èʱ£¬Ó¦Ê¹Ð¡³µÔÚ²»ÊÜÇ£ÒýÁ¦Ê±ÄÜÍ϶¯Ö½´øÑØľ°åÔÈËÙÔ˶¯¡£Ð¡³µµÄÖÊÁ¿ÎªM£¬Å̺ÍÅÌÖÐÖØÎïµÄ×ÜÖÊÁ¿Îªm£¬±£³ÖM²»±ä£¬Ñо¿Ð¡³µµÄ¼ÓËÙ¶ÈÓëÁ¦µÄ¹Øϵʱ£¬ÔÚ Ìõ¼þÏ£¬mg½üËƵÈÓÚС³µÔ˶¯Ê±ËùÊܵÄÀÁ¦¡£ÊµÑéÖдò³öµÄÒ»ÌõÖ½´øÈçÏÂͼËùʾ£¬Ö½´øÉÏÏàÁÚÁ½¸ö¼ÆÊýµãÖ®¼äÓÐËĸöʵ¼Êµãδ»³ö£¬ÒÑÖª½»Á÷µçƵÂÊΪ50HZ£¬AB=19.9mm£¬AC=49.9mm£¬AD=89.9mm£¬AE=139.8mm£¬Ôò´ò¸ÃÖ½´øʱС³µµÄ¼ÓËٶȴóСΪ m/s2
(±£ÁôÁ½Î»ÓÐЧÊý×Ö)
ijʵÑéС×éÉè¼ÆÁËÏÂÃæµÄʵÑéµç·²âÁ¿µç³ØµÄµç¶¯ÊƺÍÄÚµç×裬±ÕºÏ¿ª¹ØS£¬µ÷Õûµç×èÏäµÄ×èÖµR£¬¶Á³öµçѹ±íÏàӦʾÊýU£¬²â³ö¶à×éÊý¾Ý£¬ÀûÓòâµÄÊý¾Ý×ö³öÈçÓÒÏÂͼÏñ¡£Ôòµç³ØµÄµç¶¯ÊÆΪ £¬ÄÚµç×èΪ ¡£µç¶¯ÊƵIJâÁ¿ÖµÓëÕæʵֵÏà±È £¨Ìî¡°Æ«´ó¡±¡¢¡°Æ«Ð¡¡±»ò¡°ÏàµÈ¡±£©
¡¾´ð°¸¡¿£¨2£©10.36,12.500£»
£¨3£©m<< M£¬1.0 £»£¨4£©2V£¬0.2¦¸£¬Æ«Ð¡¡£
ÆÀ·Ö±ê×¼£ºÃ¿¿Õ2·Ö
¡¾KS5U½âÎö¡¿£¨2£©Óα꿨³ßµÄÖ÷³ß¶ÁÊýΪ103mm£¬Óαê³ßÉϵÚ6¸ö¿Ì¶ÈºÍÖ÷³ßÉÏijһ¿Ì¶È¶ÔÆ룬Óαê¶ÁÊýΪ0.1¡Á6mm=0.6mm£¬ËùÒÔ×îÖÕ¶ÁÊýΪ£ºÖ÷³ß¶ÁÊý+Óαê³ß¶ÁÊý=103mm+0.6mm=103.6mm=10.36cm£»
ÂÝÐý²â΢Æ÷µÄ¹Ì¶¨¿Ì¶È¶ÁÊý12.5mm£¬¿É¶¯¿Ì¶È¶ÁÊýΪ0.01¡Á0.0=0.000mm£¬ËùÒÔ×îÖÕ¶ÁÊýΪ£º¹Ì¶¨¿Ì¶È¶ÁÊý+¿É¶¯¿Ì¶È¶ÁÊý=12.5mm+0.000mm=12.500mm.
£¨3£©ÒÔÕûÌåΪÑо¿¶ÔÏóÓÐmg=£¨m+M£©a£¬½âµÃ£¬ÒÔMΪÑо¿¶ÔÏóÓÐÉþ×ÓµÄÀÁ¦F=MaÏÔȻҪÓÐF=mg±ØÓÐm+M=M£¬¹ÊÓÐm£¼£¼M£¬¼´Ö»ÓÐm£¼£¼Mʱ²Å¿ÉÒÔÈÏΪÉþ¶ÔС³µµÄÀÁ¦´óСµÈÓÚÅ̺ÍÖØÎïµÄ×ÜÖØÁ¦¡£
ÀûÓÃÖ½´ø¼°ÒÑÖªÊý¾Ý½áºÏÔȱäËÙÖ±ÏßÔ˶¯µÄÍÆÂÛ¡÷x=aT2Çó¼ÓËٶȡ£
£¨4£©Ö»Óõçѹ±íºÍ±ä×èÏä²âµç¶¯ÊƺÍÄÚµç×èµÄ·½·¨½Ð¡°·üÅ··¨¡±£¬ÈôÓÃͼÏó½âÌâʱ£¬»ù±¾Ë¼Â·ÊÇ£ºÓÃѧ¹ýµÄÎïÀí¶¨ÂÉÁгö±í´ïʽ£¬ÔÙ½áºÏÊýѧ֪ʶÕûÀí³öÓйØÒ»´Îº¯Êýʽy=kx+bµÄÐÎʽ£¬ÔÙÇó³ökºÍb¼´¿É£®
Óɱպϵç·ŷķ¶¨ÂɵÿÉÕûÀíΪ£¬ÓÉÉÏʽ֪ÈôͼÏóΪÏßÐÔ¹Øϵ£¬¶ÔÕÕÊýѧһ´Îº¯Êýy=kx+b£¬ÔòºáÖáӦȡ£¬×ÝÖáӦȡ£¬ÓÉͼÏó×ÝÖá½Ø¾àΪ0.5£¬¼´E=2V£¬Ð±ÂÊk==0.1£¬¿ÉµÃr=0.2¦¸.
±¾ÌâÖÐRÎÞÇî´óʱ£¬µçѹ±íµÄʾÊý½üËƵÈÓÚµçÔ´µÄµç¶¯ÊÆ¡£ÓÉÓÚµçÔ´ÄÚ×費Ϊ0£¬¹Êµçѹ±íµÄʾÊýСÓÚµçÔ´µç¶¯ÊƵÄÕæʵֵ¡£
£¨2013·±±¾©³¯Ñô¶þÄ££¬17Ì⣩¾¹ú¼ÊСÐÐÐÇÃüÃûίԱ»áÃüÃûµÄ¡°ÉñÖÛÐÇ¡±ºÍ¡°ÑîÀûΰÐÇ¡±µÄ¹ìµÀ¾ù´¦ÔÚ»ðÐǺÍľÐǹìµÀÖ®¼ä£¬ËüÃÇÈÆÌ«ÑôÑØÍÖÔ²¹ìµÀÔËÐУ¬Æä¹ìµÀ²ÎÊýÈçÏÂ±í¡£
Ô¶ÈÕµã | ½üÈÕµã | |
ÉñÖÛÐÇ | 3.575AU | 2.794AU |
ÑîÀûΰÐÇ | 2.197AU | 1.649AU |
×¢£ºAUÊÇÌìÎÄѧÖеij¤¶Èµ¥Î»£¬1AU=149 597 870 700m£¨´óÔ¼ÊǵØÇòµ½Ì«ÑôµÄƽ¾ù¾àÀ룩¡£
¡°ÉñÖÛÐÇ¡±ºÍ¡°ÑîÀûΰÐÇ¡±ÈÆÌ«ÑôÔËÐеÄÖÜÆÚ·Ö±ðΪT1ºÍT2£¬ËüÃÇÔÚ½üÈÕµãµÄ¼ÓËٶȷֱðΪa1ºÍa2¡£ÔòÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
A£®£¬ B£®£¬
C£®£¬ D£®£¬