1-111E A water pipe is connected to a double-U manom- eter as shown in Fig. Pl–111E at a location where the local atmospheric pressure is 14.2 psia. Determine the absolute pressure at the center of the pipe. „Oil SG = 0.80 Oil SG = 0.80 20 in Water pipe 30 in 60 in 25 in `Mercury SG = 13.6 FIGURE P1-111E
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- A fireman standing on a 4.9 m high ladder operates a water hose with a round nozzle of diameter 1.74 inch. The lower end of the hose (4.9 m below the nozzle) is connected to the pump outlet of diameter 2.37 inch. The gauge pressure of the water at the pump is P gauge) pump plabs- Patm Ppump 15.4 PSI = 106.179 kPa. Calculate the speed of the water jet emerg- ing from the nozzle. Assume that water is an incompressible liquid of density 1000 kg/m* and negligible viscosity. The acceleration of gravity is 9.8 m/s? Answer in units of m/s. 3 IllAn incompressible fluid with zero viscosity flows through a pipe of varying radius (shown in cross-section). Compared to the fluid at point Q, the fluid at point P has • P radius R radius 2R a greater pressure and a greater volume flow rate. a greater pressure and the same volume flow rate. the same pressure and a greater volume flow rate. a lower pressure and the same volume flow rate. none of the above.QUESTION 24 A vertical, cylindrical pipe has a height of 2.0 m and a radius of 8.0 cm. Water flowing upward from the bottom of the pipe has a speed of 3.0 m/s. If the water pressure is 100 kPa at the bottom of the pipe and 60 kPa at the top of the pipe, at what speed is the water flowing when it reaches the top of the pipe? O a. 5.82 m/s Ob.7.05 m/s OC. 8.10 m/s d. 9.43 m/s O e. 12.5 m/s
- A 4.5-kg, three legged stool supports a 65-kg person. If each leg of the stool has a cross-sectional diameter of 2.2 cm and the weight of the person is evenly distributed, determine the pressure exerted on the floor by each leg. PaB94. A closed tank contains compressed air and oil (SG=0.90) as shown. A u-tube manometer using Mercury ( SG= 13.6) is connected to the tank. The column heights are h;= 36 in, h2= 6 in, h3-9 in. Determine the pressure reading (i n psi) of the gauge. Pressure gage Air Орen Oil (2) (1) HE
- 13.2 Soapy water has a surface tension of 0.025 N m-l. A small bubble initially of radius r = 2 mm is formed. The air pressure in the vicinity of the bubble is 100 kPa. (a) What is the gauge pressure inside the bubble AP{? The bubble expands to a radius of r2 = 4 mm. (b) What is the gauge pressure inside the bubble now AP2? (c) what is the ratio of the gauge pres- APL? sures ΔΡ (d) Whatis the ratio of the bubble diam- eters r2Water is pumped through the hose shown, from a lower level to an upper level. How does the water at point 2 compare to the water at point 1? upper level lower levelz> Find the difference in pressure (P.-P) for the below pipe System : 20n
- A weather balloon has an absolute-pressure sensor attached. On the ground the sensor reads PA = 1.01×105 Pa. At a height of h = 968 m, the sensor reads PB = 8.88×104 Pa. a) Assuming air is an incompressible fluid, enter an expression for an estimate of the density of air, in terms of the defined quantities and the acceleration due to gravity, g. b ) Calculate the density of air, in kilograms per cubic meter, assuming it is an incompressible fluid.a) How much cargo mass can a ship of mass (2.8x105 kg) with dimensions (15 m x 12 m x 6 m) carry without sinking? W h 6) What is the air pressure above a given fluid of density (2300 kg/m 3 ) if the pressure is (180 kPa) at a depth of (4 m) below the surface?IP The weight of your 1450 kg car is supported equally by its four tires, each inflated to a gauge pressure of 35.0 lb/in^2. what is the area of contact each tire makes with the road? If the gauge pressure is increased, does the area of contact increase, decrease, or stay the same? what guage pressure is required to give and area of contact of 106 cm for each tire? this is one question.