ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ð¡»ª¼ÒʹÓõÄһ̨µçÈÈÁÜÔ¡Æ÷£¬ÃúÅÆÈçϱíËùʾ¡£Ð¡»ª¸øÁÜÔ¡Æ÷¼ÓÂúË®£¬ÁÜÔ¡Æ÷ÉÏÏÔʾµÄË®ÎÂΪ25¡æ£¬Ëû½«É趨ζȵ÷Ϊ75¡æºóͨµç¼ÓÈÈ£¬3hºóÁÜÔ¡Æ÷´ïµ½É趨ζÈ×Ô¶¯¶ÏµçÍ£Ö¹Á˼ÓÈÈ¡£Çë¼ÆËã²¢»Ø´ð£º
£¨1£©¼ÓÈȹý³ÌÖÐË®ÏäÖеÄË®ÎüÊÕÁ˶àÉÙÈÈÁ¿£¿
£¨2£©µçÈÈÁÜÔ¡Æ÷µÄ¶î¶¨µçÁ÷¶à´ó£¿
£¨3£©¼ÓÈȹý³ÌÖеçÈÈÁÜÔ¡Æ÷ÏûºÄÁ˶àÉÙµçÄÜ£¿
£¨4£©±È½ÏË®ÎüÊÕµÄÈÈÁ¿ÓëµçÈÈÁÜÔ¡Æ÷ÏûºÄµÄµçÄܵĴóС¹Øϵ£¬²¢¼òÒª·ÖÎöÆäÔÒò¡£
¡¾´ð°¸¡¿£¨1£©1.26¡Á107J£»£¨2£©6.82A£»£¨3£©1.62¡Á107J£®£¨4£©ÒòΪW£¾QÎü£¬ËùÒÔË®ÎüÊÕµÄÈÈÁ¿Ð¡ÓÚÏûºÄµÄµçÄÜ£¬ÕâÊÇÒòΪÓÐÒ»²¿·ÖÈÈÁ¿É¢Ê§µ½¿ÕÆøÖÐÁË£®
¡¾½âÎö¡¿£¨1£©¡÷t£½75¡æ-25¡æ£½50¡æ,Ë®ÏäÖеÄË®ÎüÊÕµÄÈÈÁ¿£ºQÎü£½cm¡÷t£½4.2¡Á103J/£¨kg¡æ£©¡Á60 kg¡Á50¡æ£½1.26¡Á107J£¨2£©Óɹ«Ê½I£½µÃ£¬µçÈÈãåÔ¡Æ÷Õý³£¹¤×÷ʱµÄµçÁ÷£ºI¶î£½£½6.28A£¨3£©t£½3h£½1.08¡Á104s¼ÓÈȹý³ÌÖеçÈÈãåÔ¡Æ÷ÏûºÄµÄµçÄÜ£ºW£½Pt£½1500W¡Á1.08¡Á104s£½1.62¡Á107J£®£¨4£©ÒòΪW£¾QÎü£¬ËùÒÔË®ÎüÊÕµÄÈÈÁ¿Ð¡ÓÚÏûºÄµÄµçÄÜ£¬ÕâÊÇÒòΪÓÐÒ»²¿·ÖÈÈÁ¿É¢Ê§µ½¿ÕÆøÖÐÁË£®