gravitational potential energy 引力势能 ; 重力位能 ; [力] 引力位能
Available Gravitational Potential Energy 有效重力位能
When I'm here, gravitational potential energy ; increases in this way; the gravitational force is in this direction.
重力势能,这样增长,重力;,是在这个方向,当我在这里。
Notice that the gravitational potential energy increases.
注意,这里,重力势能是增加的。
Let me first give you the formal definition of gravitational potential energy.
我先给你一个对于,重力势能的形式定义。
You know, if you want to measure the potential energy of something in a gravitational field, you have to define the zero somewhere, right, because it's arbitrary. You can set it anywhere you want. It's the same with enthalpy.
你知道,如果你想测量重力场,中某种东西的势能,你需要,在某处定义一个零点,对吧?,因为势能的值是任意的,你可以把它设定在。
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