0.2A=0.5W\r10.\r¡\r¢¡\r80£¤¥T¦8§¨8§¨©ª«¬®¯8§¨P©ª°±!¬®P²\r³ª¬®´µ¶8§¨·¯©ª?¸¹º8§¨±¦?8\r»P¼½¾¿¦ÀÁ\r11.261.98xlO6J6.72x105J\r¡\r¢¡\r(1)[1]HI*ĸ0PÅ!1Æ,,¸!26ÆÇ8È>&É}<Ê\rËÌÍ©8¸%ÎÏÐP26Æ\r(2)[2]*ÄÑÒ¸«£ÌÍP!110W,Ó|ÔÕ5?ÇÖ×Pr\rª!\rW=Pt=110WX5X3600S=1.98X106J\r(3)[3]Ø=ÄÌÍ©8PÙu!\rtn=pV=1.0x103kg/m3x20x103m3=20kg\rijk5lm6lEvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\r8ÚÛP£u!\rÜ=c,?²4=4.2x103J/(kg.Æ)x20kgx(26Æ-18Æ)=6.72xl05J\r12.(1)180W¶(2)91.7%\r¡\r¢¡\rÞ(1)*Ä,Çßr=4sÇàp¯Páâ=720J,àp¯P\r/>=%=æ=180W\rt4s\ràpE¯P!180W\r(2)fgÄçè0.3m/sPéêéëì4s©íîïPð\rh==0.3m/sx4s=1.2m\rbçèW!550N,àp¯P't\r%==550Nxl.2m=660J\rëïçèP²³ñ\r77=ò*100%=æ?100%*91.7%\rô720J\rëïçèP²³ñõ!91.7%\riÞ(1)àpö¯P!180W¶\r(2)÷tbøùëïçèP²³ñõ!91.7%\rijk6lm6l