That’s called the kinetic energy density, and it’s the second term of Bernoulli’s equation.
这就是所谓的动能密度, 它是伯努利方程的第二项。
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Bernoulli also came up with what we now know as Bernoulli’s equation.
伯努利还提出了我们现在所知的伯努利方程。
Crash Course Physics 速成课物理
Bernoulli also came up with what we now know as Bernoulli's equation.
伯努利还放了什么 我们通过伯努利方程知道它。
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Now, let’s look at a special case of Bernoulli’s equation, known as Torricelli’s theorem.
现在,让我们看一下伯努利方程的一个特例, 即托里拆利定理。
Crash Course Physics 速成课物理
The first term in Bernoulli's equation takes that energy, and divides it by volume.
伯努利方程的第一项是 能量除以体积。
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The first term in Bernoulli’s equation takes that energy, and divides it by volume.
伯努利方程中的第一项取该能量, 并将其除以体积。
Crash Course Physics 速成课物理
That's called the kinetic energy density, and it's the second term of Bernoulli's equation.
这称为动能密度, 它是伯努利方程的第二项。
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It’s exactly the same equation as the one we just found by using Bernoulli’s equation to describe the velocity of the water coming out of the spout.
它与我们刚刚通过使用伯努利方程找到的方程完全相同,用于描述从喷口流出的水的速度。
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To better understand this, have a look at how the three forms of energy in a fluid are represented in Bernoulli’s equation: First, there’s pressure times volume.