The entropy S(U, V) is a function of U and V in equilibrium. Using the chain rule, dV. This is always true; it's a mathematical identity. The "Fundamental Relation of Thermodynamics" says that in equilibrium: where T is temperature, S is entropy, U is internal energy, p is pressure, and V is volume. This describes how, in equilibrium, S depends on changes in U and V. Here are other derivatives to evaluate, always assuming equilibrium so you can use the Fundamental Relation. A) What's d. vi ds? B) What's UV dV? C) What's duts. n dV?

explanation:

newton's third law, for every action there is an equal and opposite reaction.

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the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

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im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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joke:

h o h o hope you have a merry christmas!