[問題] 2題有關能量的題目

看板Physics作者zjps3407 (阿銘)時間15年前 (2010/11/06 16:00)推噓2(2推 0噓 4→)

留言6則, 4人參與討論串1/2 (看更多)

→ ^ ^ ^ (a)[5%]Is the force field F(x,y,z) = -yi +xj +2k conservative? Why? [Hint] Consider the work done on moving a point particle along the unit circle centered at the origin in the xy plane. (b)[5%]For a conserved force field → → F(x,y,z) with potential energy U(x,y,z), show that F is perpendicular to the equipotential surface U(x,y,z) = constant. a小題和b小題...麻煩了.. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 123.193.94.129

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Entropy1988

11/06 16:07, , 1^F

11/06 16:07, 1^F

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HDT

11/06 16:17, , 2^F

11/06 16:17, 2^F

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hank780420

11/06 17:07, , 3^F

11/06 17:07, 3^F