Pressure vs Depth - U Shaped Tube 2 (one fluid) Learning Goal: Pressure vs Depth in a fluid stopper The figure shows a U-tube containing water. The right side of the tube is sealed with a stopper (there is no air between the stopper and the water surface), and on the left side the water lever is indicated by letter A and is open to the air. The atmospheric pressure is 1 .013x10 Pa . Points A and E are at the same horizontal level. Point F is above point E by h; = 0.34 m . Point B is below point Aby hg =0.47 m . The density of water is p = 1000.0 kg/m3 . The magnitude of the gravitational acceleration is g = 9.80 m/s? w Part A - What is the watter pressure at point E, Pg ? Use Scientific notation Pg 1.013x10 Pa Previous Answers v Correct Part B - What is the watter pressure at point F, Pg ? Pay attention to which point is deeper in the fluid, and which has larger pressure. \"eoms = ol LB 0 5 | E A e Use Scientific notation , format 1.234- 10", in Pascals. r'C)l? , format 1.234- 10", in Pascals. w Part C - What is the watter pressure at point B, Pg ? Use Scientific notation , format 1.234- 10", in Pascals. .0 =10 o] g1 Previous Answers Request Answer Learning Goal: Pressure vs Depth in a fluid -- U-shaped Tube capped| F; capped|F; h.T s ca I water As shown in the figure, water is first poured into a U-shaped tube, then some unknown fluid is added to the LEFT arm. There is no intermixing between the two liquids. Then both ends are fitted with tight caps of the same cross-sectional area = 0.018 m? . Force F; =10.8 N is exerted on the Left cap, and F, =7.1 N is exerted on the right cap. When static equillibrium is established, in the Left arm h; =0.43 m . In the right arm hy =0.21 m . The density of water is p = 1000.0 kg/m3 . The magnitude of the gravitational acceleration is g = 9.80 m/s? Suggestion: Self Assessment v v Part A - What is the pressure at point A (right below the Left cap), Pa ? Keep 1 digit after the decimal point, in Pascals. below the LEFT cap f\" 600.0 Pa Previous Answers + Correct Compare your results of Pg and P, are they indeed equal? Part B - What is the pressure at point B (right below the Right cap), Pg ? Keep 1 digit after the decimal point, in Pascals. P below the RIGHT cap _B 394.4 Pa Previous Answers v Part C - What is the density of the UNKNOWN Fluid ? The most important step in solvinf a U-Shaped Tube problem is to identify TWO POINTS (on on each side) that have the same pressure. Thes two points must be at the SAME HORIZONTAL Level in the SAME FLUID. If you are not sure how to choose such two points, open the "hints" Density of the unknown fluid - Keep 1 digit after the decimal point, in kg/m3 P View Available Hint(s) M. .- pnknown - : kg/mS Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining w Part D - If you didn't open Hint C1, open it now. What is the pressure at point D, Pp ? Keep 1 digit after the decimal point, in Pascals. M. Submit Request Answer + PartE - If you didn't open Hint C1, open it now. What is the pressure at point C, Pg ? Keep 1 digit after the decimal point, in Pascals. a5 a0 SRRSO Pc Pa Submit Request