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There are two questions, and I hope experts can provide answers; I would be very grateful! The following questions assume a constant gas temperature. I. What is the relationship between the gas pressure, flow rate, and velocity at the C end and those in pipes A and B? As shown in Figure 1, the gas used for transportation is Ar gas; the gas source delivers the gas to tube A, which then passes through tube B to component C, where component C is open-ended. The diameter of tube B is smaller than that of tube A. The connection point between component C and tube B is a gas chamber, which opens to the atmosphere through several smaller-diameter branch tubes. Question: 1. What is the relationship between the flow rate, velocity, and pressure of Ar flowing out at the C end, and those of the gases in tubes A and B? Is it related to the diameter of the small branch pipes in component C? 2. What is the relationship between flow rate, velocity, and pressure between pipe A and pipe B? 3. What is the relationship between the flow rate, velocity, and pressure of the gas in the C-element gas chamber and those of the gas in tube B? file:///C:/Users/LIUGUO~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg Figure 1. II. What is the relationship between the pressure, flow rate, and velocity of the gas in the branch pipes and those in the main pipe? As shown in Figure 2, the carrier gas is Ar gas; the main pipe divides into two branch pipes, and the branch pipes are open. Question: What is the relationship between the pressure, flow rate, and velocity of the gas in the branch pipe and those in the main pipe? Is it related to the diameter of the two? file:///C:/Users/LIUGUO~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.jpg Figure 2