So the force that you're pushing down on here is the external pressure times the area.
或者压缩功的概念,在活塞上施加压力。
We have a weight on the piston, and that weight is chosen so that p2 it acts as though p external is equal to p2.
让活塞上放一重物,让它的效果刚好,等同于外压强。
So it's going to shoot up until the internal pressure and the external pressure are in equilibrium.
活塞将上,移直到内外,压强达到平衡。
to take my cylinder now, and the external pressure and the internal pressure are not going to be I'm going to start with my cylinder here, I'm going to put little pegs here so it doesn't fly up.
活塞内外的,压强不相等,我们在,放上插销,以防止活塞。
We have two weights on it.
放两个重物在活塞上。
It's not doing as much work.
活塞上的力。
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