2-8 As shown in Fig. A-2, a container with a certain vacuum degree is located invesely...
A structure is attached to the ocean floor as shown in Fig. A 2-m-diameter hatch is located in an inclined wall an hinged on one edge. Determine the minimum air pressure, p1, within the container that will open the hatch. Neglect the weight of the hatch and friction in the hinge.
part a-d
2 A paint sprayer pumps air through a constriction in a 0.025- m diameter pipe, as shown in the figure. The flow causes the pressure in the constricted area to drop and paint rises up the feed tube and enters the air stream. The speed of the air stream in the 0.025-m diameter sections is 5.00 m/s. The density of the air is 1.29 kg/m3, and the density of the paint is 1200 kg/m3. We can treat the...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
12) As shown in fig. an open-tube manometer containing water (p.-10 kg/m') and mercury (p-1.36x 10 kg/m). The height of water in the left column above the interface A is h' - 30 cm, while the height of mercury in the right column above B is h - 20 cm. The right column is open to the atmosphere Patm - 1.01 10 Pa. The pressure P in the container is: a) P-1.25x10 Pa a) P=0.56*10Pa b) P-4.29x109 Pa d) P-2.46x10*...
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H4-2: As shown below, water (which has a density of 998 kg/m2) flows steadily through a box, entering section 1 at 2 m/s. The inlet and exit are both open to atmosphere. Neglect body forces. Calculate the (a) horizontal; and (b) vertical forces required to hold the box stationary D1=5cm 65° D2=3cm hswers: (a
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: 24.11 Equal masses of He and Ne are placed in a sealed container. What is the partial pressure of He if the sotal pressure in the (E) 5 atm (A) 1 atm (B) 2 atms (C) 3 atm 2.A pure liquid in an open vessel boils at the temperature at which the (A) molar entropy of the liquid becomes equal to that of the gas vapor pressure of the liquid becomes equal to the...
(c) Fuel oil, with a density of 870 kg m-, is pumped through a horizontal pipe, as shown in Figure Q2.2. The pipe is 100 mm in diameter and contains an orifice plate with a throat diameter of 40 mm. The pressure drop across the orifice is measured on a U-tube manometer, containing mercury with a specific gravity 13.6. The difference in levels of the columns is measured as 45 mm. The coefficient of discharge for the orifice plate Ca...
Extra credit As shown in Fig. 2, two parallel plates are connected by a wire so that they remain at the same potential. Let one plate coincide with the yz plane and the other with the plane s (see diagram). The distance s between the plates is much smaller than the lateral dimension of the plates. A point charge Q is located between the plates at -b. What is the magnitude of the total surface charge density on the inner...
+8+7 ( 1800) (8d) 3. To find the distance across a highway, a surveyor chooses points A and B, which are (100 +10*N) m apart on one side of the highway (see Fig. 2; the highway is located between the side e and a reference point C- the vertex of the triangle). She then chooses the reference point C on the opposite side of the highway and finds that the angle a (70- N)0 and angle B-(.Approximate the distance afrom...
8-C) As shown below water is pumped and sprayed through a nozzle into the atmosphere at 20 m/s at an elevation 10 m above the reservoir surface. The mass flow rate is 40 kg/s and the volumetric flow rate is 0.040 m3/s. The large diameter inlet pipe total length is 50 m. The pump effidency is 65%. The longer smaller diameter pipe leaving the pump is 200 m in total length. The pipes have different diameters as indicated below. The...