diameter pipe with a density of 0.0035 slugs/ft³ and a uniform speed of 696 ft/s. (a) Determine the rate (slugs/s) at which the mass of air in the tank is increasing or decreasing. (b) Determine the average time rate of change of air density within the tank. Compressor 10 ft³/s - 0.00238 slugs/ft³ (a) (b) DM Dt Dp Dt i i Tank volume 20 ft³ 1.2 in. slugs/s slugs/ft³.s 696ft/s 0.0035 slugs/ft³

diameter pipe with a density of 0.0035 slugs/ft³ and a uniform speed of 696 ft/s. (a) Determine the rate (slugs/s) at which the mass of air in the tank is increasing or decreasing. (b) Determine the average time rate of change of air density within the tank. Compressor 10 ft³/s - 0.00238 slugs/ft³ (a) (b) DM Dt Dp Dt i i Tank volume 20 ft³ 1.2 in. slugs/s slugs/ft³.s 696ft/s 0.0035 slugs/ft³

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A square bottomed tank measures 25*25*160cm and is positioned with the bottom of the tank 1m above sea level and at 20degreesC. The tank is 90% filled with water and 10% air. A water inlet enters the centre of the tank of 10mm diameter, and no other inlet or outlet is open within the tank. A pump drives water at a starting rate of 450ml/min at 0 Pa lowering to 350ml/min as the pressure increases to 800 kPa. The pump and tank are connected by a 10mm diameter pipe with k=0.15 for all fittings and tubing. It should be assumed this is the maximum flow and pressure provided by the pump. The pump will stop instantaneously once the pressure reaches 800kPa. The relationship between flow and pressure from the pump should be assumed linear. What will be the volume of compressed air inside the tank and how long will it take to fill?
A room has a volume of 349 m3. An air-conditioning system is to replace the air in this room every 81.5 minutes, using ducts that have a square cross section. Assuming that air can be treated as an incompressible fluid, find the length of a side of the square if the air speed within the ducts is (a) 2.00 m/s and (b) 7.00 m/s. a: b:
Water is being pumped the through one inch diameter piping arrangement to a higher elevation (5 meters up). Assume incompressible fluid conditions and some heat losses to the surroundings. At the inlet water pressure is 1 bar, temperature 15C, and volumetric flow rate is 0.02 m3/s. At the exit pressure is 2.2 bar, temperature is 10C and velocity of the stream is 40 m/s. Determine: a.Density of the inlet stream using NIST tables. b.Mass flow rate [kg/s] c.Determine h2 from known p2 and T2 using NIST tables d.Find heat rate removed from Q=m(h1-h2) Use Energy Balance Equation with enthalpy difference and in the units of kW to find pumping power in kW. NOTE: The heat is removed from the system, so it should be negative in your equation! show all steps please
A 400cm long pipe with a smaller diameter of 3.937 inchesand a larger diameter of 11.81 inches as shown below, isinclined at a 30° angle with the horizontal. Calculate the pressure differencein KN/m²between the smaller and bigger diameter parts of the pipe if the velocity of water at the smaller diameter section is 6.56 ft/s. Pi. V₁.d₁. A1 41-0 P2. Vz, dz. Az 32 Datum
The diameter of a tube changes gradually from 20cm at "A" to 40cm at "B". "A" is 4.5m below "B". if the relative pressure at "A" is 0.7 kg/cm^2 and at "B "is 0.6 Kg/cm^2. The flow rate carried by the tube is 105 L/s. Determine:a) The sense of circulation.b) The friction loss between the two points.
A pump is installed in a pipe system, where at the suction side 1.0 m below the pump, an open manometer reads a vacuum of 20 cm of mercury. The pipe is 10 cm in diameter and the flow is 35 L/s of water. Find the total energy at the location of the manometer, relative to a datum, through the pump. Choices are listed below and draw its FBD. A.-4.67 m B.-2.72 m C.12.74 m D.2.56
1. A pressure gauge attached to a pipe is reading 1.34 m of Hg at a place where the atmospheric pressure is 10.33 m of water. The approximate absolute pressure at the mountain isa. 930 kPab. 181 kPac. 280 kPad. 100 kPa 2. The flow is said to be unsteady and non-uniform when,a. The flow velocity is not changing with time but changing with spaceb. The flow velocity is changing with both time and spacec. The flow velocity is changing with time but not changing with spaced. The flow velocity is not changing with both time and space 3. The below figure shows a pipe with a circular cross section of diameter D mm on the left end and a square cross section with side D mm on the right end. Mercury enters the left end with a velocity 1 cm/s and leaves the right end with a velocity V2. Find V2 (neglect losses in the pipe).a. Cannot be find since length is not givenb. Cannot be find since diameter is not givenc. 7.85 mm/sd. 12.73 mm/s 4. 1 kg water is flowing through an inclined pipe at…
1.28. The performance curve for the fan of Problem 1.27 can be approx- imated by a straight line through its BEP (using techniques devel- oped in Chapter 7). The curve is Aps = 4488 – 166Q, with ApT in Pa and Q in m³/s. If this fan is connected to a 1-m dia- meter duct (f = 0.045) whose length is 66 m, what flow rate will result? %3D
Water is contained in both sides of the cylinder system shown below and the valve is closed. If the pressure on the right hand side of the valve is 119.6 kPa, what is the height in tank B, i.e. what is hp 1? Assume that the atmospheric pressure is 100 kPa, the acceleration due to gravity is 9.807 m/s² and the density of water is 1000 kg/m³. A Po B ha,1=1.5 m Water Water hg,1 1.0 m 0.5 m Pval,left Pyal,right A) 1.0 m B) 1.5 m C) 2.0 m D) 2.5 m
3. A pump steadily circulates oil used for lubricating heavy machine tools. The volume flow rate and temperature of the oil are 300 gal/min and 104°F, respectively. At 104°F, the kinematic viscosity and the specific gravity of the oil are 2.15 x 10-3 ft² /s and 0.89, respectively. The pipe lengths are 25 ft for the 4-in diameter pipe and 75 ft for the 3-in diameter one. The Schedule-40 steel pipe has an average roughness element size of 0.0018 in. If all minor losses can be ignored, evaluate how much power (in a unit of horsepower) the pump delivers to the oil. 6 ft 22 ft Flow 15 ft Discharge line 3-in Schedule 40 Suction line 4-in Schedule 40 steel pipe steel pipe Pump
The volume of air delivered by fan is 12 m^3/sec and 59 mm water gage. The density of air is 1.9 kg/m^3 and the motor power needed to drive the fan is 50 kW. Determine the fan efficiency in % Answer in whole number
60 deg F engine oil flows in a 6" diameter pipe of length 13 feet. The gage pressure at the pipe inlet is 1 psi; the oil exits the pipe to the atmosphere. Determine the volume flow rate of the oil in ft3/sec. You can assume laminar flow.