各位板友好~有道題目因為有點看不太懂，所以希望各位板友可以幫幫忙~~~

問題是這樣的(因為怕翻譯有誤所以用原文的~)

A swimming pool is filled with water (total mass M)to a height  h. Explain
why the gravitational potential energy of the water is 1/2Mgh. Where does the
factor of 1/2 come from? How much work be done to fill the pool, if there
supply of water at ground level? What does this have to do with capacitors?

第一個問題我是有比較直觀的答案，但是又怕這樣不夠嚴謹，至於後面兩個問題就真的不
太懂要怎麼解決了~ 希望有哪位好心的板友可以幫幫我的忙~~謝謝囉~~!!

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 203.72.85.92