A test tube is placed in a rotating device that gradually positions the tube to a horizontal position. If the rate is 1000 rpm, estimate the pressure at the bottom of the relatively small-diameter test tube. The 12 cm-long tube contains water and the top of the tube is at a radius of 4 cm from the axis or rotation

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Milk with a density of 970 kg/m^3 is transported on a level road in a 9-m long, 3-m diameter cylindrical tanker. The tanker is completely filled with milk, i.e., no air space in the tank. If the truck is accelerating from a stop signal at 7.0 m/s^2 to the left, determine the pressure difference between the maximum and minimum pressures in the tank. Depict on the figure the location of the minimum and maximum pressures in the tank. min. 9m 3m

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You have a container like the one shown in figure 1 from which you want to extract liquid with the help of asiphon (inverted U-shaped tube). The siphon should be filled initially, but once this is done theliquid will flow until its level drops below opening A. The liquid has a density ?, and anegligible viscosity. Assume that the area of ​​the container is very large compared to the area of ​​thetube and that both the tube at C and the container itself at D are open to the atmosphere. a) Using Bernoulli's equation and comparing points "D" and "C", determine the speed with which the liquid flows in C. b) What is the gauge pressure of the liquid at the highest point (B)? c) What maximum height H can the highest point (B) of the tube have without ceasing to have flow? d) If the liquid of density ? is changed, for one with density ?2 where ? < ?2, will there be any change in velocity at C? If there is any change, write down with which liquid the highest speed is obtained in C, otherwise…