From the question he has wrote the given infomation. i dont understand how he has got that from the question Now, from the information given u= - V (₁-2)-(2)a function of x only,and alsoL = L₁ - VtBecause of (2), Equation (1) is df +pdyatdx=0(3)(4) C૧)Amovingpiston compresser gus incylinder byat consfont speed V, as shown in the figure.TheLet thegas density andlength at time t=0 areto and Lo, respectively.qui velocity varylinearly from u = V atthe piston fare to u = oat x = L. If theanV// PISTONdensityp(t).X=0vanesGAS•u(x, t)p(t)ax=L(t)only with time, findgarexpression for

Answered: Image /qna-images/answer/f7d6f204-5c34-46cb-a354-bc4c11968a19.jpg

Q9) A piston compresses gus in а at constant moving 74 V PISTON X=0 GAS x cylinder by speed V, as shown in the figure. The gui density and length at time t=0 are to and Lo, respectively. Let the qui velucity vary linearly from u = √ at the piston face to u=0 at x = L. If the find an →u(x, t) p(t) x= L ( t) density vanes only with time, p(t)! дал expression for

Q9) A piston compresses gus in а at constant moving 74 V PISTON X=0 GAS x cylinder by speed V, as shown in the figure. The gui density and length at time t=0 are to and Lo, respectively. Let the qui velucity vary linearly from u = √ at the piston face to u=0 at x = L. If the find an →u(x, t) p(t) x= L ( t) density vanes only with time, p(t)! дал expression for

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

To what head of air (R = 287 J · kg−1·K−1) at an absolutepressure of 101.3kPa andtemperature of 15◦C is a pressureof 75 mm of water equivalent?
In Fig. water exits from a nozzle into atmosphericthe pressure of 101 kPa. If the exit velocity is V 2 = 8 m/s andfriction is neglected, what is the axial fl ange force requiredto keep the nozzle attached to pipe 1?( a ) 11 N, ( b ) 56 N, ( c ) 83 N, ( d ) 123 N, ( e ) 110 N
5. Consider a Pitot probe in high-speed flow.(a) Give the value of the stagnation pressure to the freestream pressure p0/p∞ for airand M∞ = 1. Assume stagnation is reached isentropically.(b) How is the value found in part (a) important for Pitot problems? As part ofyour discussion, include what the flow field looks like for different cases and thedifferent assumptions that have to be made.
A belt moves upward at velocity V, dragging a fi lm ofviscous liquid of thickness h , as in Fig. . Near the belt,the fi lm moves upward due to no slip. At its outer edge, thefi lm moves downward due to gravity. Assuming thatthe only nonzero velocity is υ ( x ), with zero shear stress atthe outer fi lm edge, derive a formula for ( a ) υ ( x ), ( b ) the average velocity V avg in the fi lm, and ( c ) the velocity V c forwhich there is no net flow either up or down. ( d ) Sketchυ ( x ) for case ( c ).
Air at Ma1 = 2.0 and p1 = 100 kPa undergoes an isentropicexpansion to a downstream pressure of 50 kPa. What is thedesired turn angle in degrees?
The waterwheel in Fig. is being driven at 200 r/minby a 150-ft/s jet of water at 20 ° C. The jet diameter is 2.5 in.Assuming no losses, what is the horsepower developed bythe wheel? For what speed Ω r/min will the horsepowerdeveloped be a maximum? Assume that there are manybuckets on the waterwheel.
A typical carbon dioxide tank for a paintball gun holdsabout 12 oz of liquid CO2. The tank is fi lled no more thanone-third with liquid, which, at room temperature, maintainsthe gaseous phase at about 850 psia. (a) If a valve isopened that simulates a converging nozzle with an exitdiameter of 0.050 in, what mass fl ow and exit velocityresults? (b) Repeat the calculations for helium.
Consider the incompressible viscous flow of air between two infinitelylong parallel plates separated by a distance h. The bottom plate isstationary, and the top plate is moving at the constant velocity ue in thedirection of the plate. Assume that no pressure gradient exists in the flowdirection.a. Obtain an expression for the variation of velocity between the plates.b. If T = constant = 320 K, ue = 30 m/s, and h = 0.01 m, calculate theshear stress on the top and bottom plates.
The large compressed-air tank in Fig.exhausts froma nozzle at an exit velocity of 235 m/s. The mercury manometerreads h =30 cm. Assuming isentropic flow, computethe pressure (a) in the tank and (b) in the atmosphere.(c) What is the exit Mach number?
Derive an expression for the capillary- height change h, as shown, for a fluid of surface tension Y and contact angle 0 be- tween two parallel plates W apart. Evaluate for water at 20°C if W = 0.5 mm.
An airplane is fl ying at 300 mi/h at 4000 m standardaltitude. As is typical, the air velocity relative to the uppersurface of the wing, near its maximum thickness, is 26 percenthigher than the plane’s velocity. Using Bernoulli’sequation, calculate the absolute pressure at this point on thewing. Neglect elevation changes and compressibility.
Liquid drains from a small hole in a tank, as shown inFig. P4.60, such that the velocity fi eld set up is given byυ r ≈ 0, υ z ≈ 0, υ θ ≈ KR 2 / r , where z = H is the depth of thewater far from the hole. Is this fl ow pattern rotational orirrotational? Find the depth z C of the water at the radiusr = R .