Physical property of gas effecting turbulent flow is density *
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- kQ8) Which of the following graphs represents the correct relation between the pressure P (mm.Hg) and the volume V (mm³) of the trapped air: P P P A) В) D) E)Q2/ Liquid-Level feedback control (Pl Controller) system (shown below) has the following parameter values: A = 3 ft2, R = 1.0 min/ft?, Ky = 0.2 ft¥min psi, Km = 4 mA/ft, Kc = 5, 11=3 min, Kip = 0.75 psi/mA. The system is initially at the nominal steady state with a liquid level of 1 ft. a-Draw the block diagram of this system b-Derive the process transfer function G(s)=H'(s)/Q’z(s) c- If the set point is suddenly changed from 1 to 3 ft, how long will it take the system to reach 2 ft?
- Q2/ Calculate the pressure drop in (pa) for a cyclone of (1 ft ) in diameter „air velocity is ( 16.64 ft/s), air density is (0.082 Ib/ft3) and (kc=16). Then find the efficiency if the flow rate changed to (10 ft3/s) if the initial efficiency was .74%Review Constants erlodic Table A milkshake has viscosity of 0.60PA · s. To drink this shake through a straw of diameter 0.56 cm and length 22 cm, you need to reduce the pressure at the top of the straw to less than atmospheric •S. Part A pressure. If you want to drain a 400mL shake in 2.0 minutes, what pressure difference is needed? You can ignore the height difference between the top and the bottom of the straw. Express your answer with the appropriate units. HA ? Ap = 182.19 • 102 ра Submit Previous Answers Request Answer> Question 4 of 8 > © Macmillan Learning A 0.573 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 5.37 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 2.31, what is the initial acceleration a of the metal cylinder? Assume the pressure outside of the tube is 1.00 atm and that the top of the tube is open to the air. a = 27.29 Incorrect m/s² 100 > Attempt 3
- Basketball by circumference (75.5 cm) and mass (589 g) is forced onto the bottom of the pool and then released. After accelerating upward, it rises at a constant speed. Calculate the buoyancy force on a basketball?Confined gas 10 cm Glass bulh 5 cm Oil Water The manometer shown above is connected from one side to a glass bulb that contains a confined gas and from the other side it is open to the atmosphere. The pressure of the confined gas is: Given: Patm = 76 cm mercury Pmercury = 13600kg/m³ Pwater = 1000kg/m³ Poil = 800kg/m³ g = 10m/s? 103000 pa 106260 pa O 104460 pa 103720 pa 105310 paNormally, a Goodyear airship, such as that in Figure, contains about 5.40×103m3 of helium (He) whose density is 0.179 kg/m3. Find the weight of the load WLthat the airship can carry in equilibrium at an altitude where the density of air is 1.20 kg/m3.