Is equal to 1/2 R, and that v2 is equal to 2R. The input area is 2, so it'sĢv1, and that also equals the output area times output Thing as the input velocity times the input area.
Is R, which is volume per amount of time, is the same To be the same numbers, because of the equation Per second, or out of the pipe per second? We know that those are the going Water in this pipe- how much volume goes either into the pipe Is, I want to figure out what is the flow or the flux of the We're assuming that it's laminarįlow, so there's no friction within the pipe, and In the pipe- that is equal to 6,000 pascals. Pressure 2- that's the external pressure at that point Point is essentially being applied rightwardsġ is 10,000 pascals. Point in the pipe, which is v1, and the velocity exiting The cross-sectional area at this end of the pipe,Īrea 2, is equal to half a square meter. Pipe that at the left end of the pipe, the cross-sectionalĪrea, area 1, which is equal to 2 meters squared. If this wasn't helpful please fell free to specify your questions again. The velocity in the section 2 in the video is bigger because the same amount of molecules that passed through section 1 now have to pass section 2 in the exact same amount of time. And if you want to understand this in terms os momentum you just have to consider all the collisions between the molecules as perfectly elastic (watch some videos about this topic).
In a molecular level, you can imagine (just imagine it because such perfect fluid doesn't exist) some fluid molecules align in a stream line, when you push one (by applying a force) all of them will move. So, if a certain amount of fluid (volume) passes through area 1 in a certain amount of time (flux - R) the same volume will cross section 2. Therefore, if you apply a certain force (pressure) on one edge it will be distributed along the fluid without ANY lost of energie and in every direction. This fluid, besides being imaginary, has the properties of having zero viscosity and being incompressible. However I will explain to you what happens and hopefully it'll be useful.įirst, you have to understand that Sal is using and ideal fluid. CHEMICAL AND PHYSICAL PROPERTIES AND CHANGES For this exercise, use online resources (Khan academy, Youtube, etc.) to fill in the columns for the elements and compounds below: ELEMENT Solubility in Water Physical Properties (Color, texture, phase, etc.) Results of Heating in a Bunsen burner (Does it burn, melt, decompose?) ΑΙ с Fe Mg Ss Sn ZnĬOMPOUND Physical Properties (Color, texture, phase, etc.) Solubility in Water Results of Heating in a Bunsen burner (Does it bum, melt, decompose?) Physical Changes (If it melts or goes to the gas phase) Chemical Changes (If it burns, it's a chemical change) Sucrose, C12H22011 NaCl CuSO5H2O Naphthalene, CioHs CaCl2 CaCO3 NH.Unfortunately I couldn't clearly understand your doubt.
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