ÌâÄ¿ÄÚÈÝ
ÈçͼÊÇÐ¥Óî¼ÒÐÂÂòµÄһ̨¿ìËÙµçË®ºø£¬Õą̂µçË®ºøµÄ ÃúÅÆÈçÏÂ±í£®ÎªÁ˲âÁ¿¸ÃµçË®ºøÉÕˮʱµÄʵ¼Ê¹¦ÂÊ£¬Ð¥ÓîÓÃËùѧ֪ʶºÍ°Ö°ÖºÏ×÷½øÐÐÁËÈçÏÂʵÑ飺¹Øµô¼ÒÀïËùÓÐÓõçÆ÷£¬½«¸ÃµçË®ºø×°ÂúË®£¬½ÓÈë¼ÒÍ¥µç·ÖУ¬²âµÃºøÖÐË®´Ó25¡æ ÉÏÉýµ½35¡æËùÓõÄʱ¼äÊÇ50s£¬Í¬Ê±¹Û²ìµ½¼ÒÖС°220V 10A £¨40A£© 3 200imp/£¨ kW£®h£©¡±µÄµç×ÓʽµçÄܱíºÄµçָʾµÆÉÁ˸ÁË80imp.Çë¸ù¾ÝÏà¹ØÐÅÏ¢½â´ðÏÂÁÐÎÊÌ⣮[cË®=4.2¡Á 103J/£¨ kg£®¡æ£©]
£¨1£©µçË®ºøÖÐË®µÄÖÊÁ¿£»
£¨2£©µçË®ºøÉÕˮʱµÄʵ¼Ê¹¦ÂÊ£»
£¨3£©µçË®ºø¼ÓÈȵÄЧÂÊ£»
£¨4£©Í¨¹ý±È½Ïʵ¼Ê¹¦ÂÊÓë¶î¶¨¹¦ÂʵĴóС¹Øϵ£¬¼òÒª»Ø´ðÔì³ÉÕâÖÖ¹ØϵµÄÒ»ÖÖ¿ÉÄÜÔÒò¡£
£¨1£©µçË®ºøÖÐË®µÄÖÊÁ¿£»
£¨2£©µçË®ºøÉÕˮʱµÄʵ¼Ê¹¦ÂÊ£»
£¨3£©µçË®ºø¼ÓÈȵÄЧÂÊ£»
£¨4£©Í¨¹ý±È½Ïʵ¼Ê¹¦ÂÊÓë¶î¶¨¹¦ÂʵĴóС¹Øϵ£¬¼òÒª»Ø´ðÔì³ÉÕâÖÖ¹ØϵµÄÒ»ÖÖ¿ÉÄÜÔÒò¡£
![](http://thumb.1010pic.com/pic1/upload/papers/c04/20120306/201203060938229012891.gif)
![](http://thumb.1010pic.com/pic1/upload/papers/c04/20120306/2012030609382291111712.gif)
½â£º
£¨1£©m=¦ÑV=1¡Á103¡Á1.8¡Á10-3kg=1.8kg£»
£¨2£©W=
¡Á3.6¡Á106J=9¡Á104J£¨»ò0.025kW¡¤h£©£¬P=
=1 800W£»
£¨3£©QÎü=cm£¨t-t0£©=4.2¡Á103¡Á1.8¡Á£¨35-25£©J=7.56¡Á 104J£¬¦Ç=
=84%£»
£¨4£©Êµ¼Ê¹¦ÂÊСÓڶ¹¦ÂʵÄÔÒò¿ÉÄÜÊÇʵ¼ÊµçѹСÓڶµçѹ¡£
£¨1£©m=¦ÑV=1¡Á103¡Á1.8¡Á10-3kg=1.8kg£»
£¨2£©W=
![](http://thumb.1010pic.com/pic1/upload/papers/c04/20120306/20120306093822917962.gif)
![](http://thumb.1010pic.com/pic1/upload/papers/c04/20120306/201203060938229401078.gif)
£¨3£©QÎü=cm£¨t-t0£©=4.2¡Á103¡Á1.8¡Á£¨35-25£©J=7.56¡Á 104J£¬¦Ç=
![](http://thumb.1010pic.com/pic1/upload/papers/c04/20120306/201203060938229571171.gif)
£¨4£©Êµ¼Ê¹¦ÂÊСÓڶ¹¦ÂʵÄÔÒò¿ÉÄÜÊÇʵ¼ÊµçѹСÓڶµçѹ¡£
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
![](http://thumb.1010pic.com/pic3/upload/images/201207/35/db5c1ea8.png)