ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÓÃÒ»Ìõ¾øÔµÇáÉþ¹ÒÒ»¸ö´øµçСÇò£¬Ð¡ÇòÖÊÁ¿Îª1.0¡Á102 kg£¬Ëù´øµçºÉÁ¿Îª2.0¡Á108 C¡£ÏÖ¼Óһˮƽ·½ÏòµÄÔÈÇ¿µç³¡E = 3.75¡Á106 N/C¡£Æ½ºâʱ¾øÔµÉþÓëÊúÖ±Ï߳ɦȽǣ¬Éþ³¤L = 0.2 m¡£
£¨1£©Ð¡ÇòÊܵ½µÄµç³¡Á¦Îª¶à´ó£¿
£¨2£©Æ½ºâʱ¾øÔµÉþÓëÊúÖ±Ï߳ɦȽǣ¬¦È½Ç¶à´ó£¿
£¨3£©Ð¡ÇòÔÚƽºâλÖÃʱ£¬Í»È»¼ô¶ÏÇáÉþ£¬Ð¡Çò¼ÓËٶȵĴóСºÍ·½Ïò£¿
£¨4£©Èô½«Ð¡ÇòÀµ½ÊúֱλÖþ²Ö¹ÊÍ·Å£¬Ð¡ÇòÔ˶¯µ½Æ½ºâλÖÃʱµÄËٶȴóС£¿
£¨5£©½ÓµÚ£¨4£©ÎÊ£¬Ð¡ÇòÔ˶¯µ½Í¼Ê¾Î»ÖÃʱ£¬¼ô¶ÏÇáÉþ£¬0.08 sºóСÇòµÄËٶȴóСºÍ·½Ïò£¿
¡¾´ð°¸¡¿£¨1£©£»£¨2£©37¡ã£»£¨3£©£¬·½ÏòÑØбÓÒÏ·½£»£¨4£©£»£¨5£©£¬ÓëϸÉþ³É45¡ã½Ç£¬ÓëÊúÖ±·½Ïò³É82¡ã½Ç
¡¾½âÎö¡¿
£¨1£©¸ù¾Ý
´úÈëÊý¾Ý½âµÃ
£¨2£©¶ÔСÇòÊÜÁ¦·ÖÎö£¬ÈçͼËùʾ
¸ù¾Ý¼¸ºÎ¹ØϵÔòÓÐ
½âµÃ
£¨3£©Ã»Óмô¶ÏÇáÉþÇ°£¬ÓÉÊÜÁ¦·ÖÎöͼ¿ÉµÃ£¬ÖØÁ¦Óëµç³¡Á¦µÄºÏÁ¦Îª
¼ô¶ÏÇáÉþºó£¬ÖØÁ¦Óëµç³¡Á¦²»±ä£¬ÔòºÏÁ¦²»±ä£¬¸ù¾ÝÅ£¶ÙµÚ¶þ¶¨ÂÉÓÐ
½âµÃ
¼ÓËٶȵķ½ÏòбÓÒÏ·½¡£
£¨4£©´Ë¹ý³Ì£¬¸ù¾Ý¶¯Äܶ¨ÀíÓÐ
½âµÃ
£¨5£©Ð¡ÇòÔ˶¯µ½Í¼Ê¾Î»ÖÃʱ£¬¼ô¶ÏÇáÉþ£¬ÊÜÖØÁ¦ºÍµç³¡Á¦×÷Óã¬Á½Á¦µÄºÏÁ¦²»±ä£¬¼ÓËÙ¶ÈÈÔΪ£¬ÔòСÇò×öÀàƽÅ×Ô˶¯£¬ÑسõËٶȷ½Ïò×öÔÈËÙÖ±ÏßÔ˶¯£¬ÔòÓÐ
ÑغÏÁ¦·½Ïò×ö³õËÙ¶ÈΪÁãµÄÔȼÓËÙÖ±ÏßÔ˶¯£¬¼ÓËÙ¶ÈΪ£¬ÔòÓÐ
Ôò´ËʱµÄËٶȴóСΪ
Éè´ËʱËÙ¶ÈÓëÔÈËÙÔ˶¯·½ÏòµÄ¼Ð½ÇΪ£¬ÔòÓÐ
½âµÃ
¹ÊÓëϸÉþ³É45¡ã½Ç£¬ÓëÊúÖ±·½Ïò³É82¡ã½Ç¡£