In a paging system, page boundaries are transparent to the programmer. Explain how a loop might cause thrashing in a static allocation paging system when the memory allocation is too small.

A cylindrical piece of steel 75 mm (3 in.) in diameter is to be austenitized and quenched such that a minimum hardness of 40 HRC is to be produced throughout the entire piece. Of the alloys 8660,...

At the end of Section 21.14 it was noted that the intensity of light absorbed while passing through a 16-kilometer length of optical fiber glass is equivalent to the light intensity absorbed through...

In the Otto cycle all the heat transfer qH occurs at constant volume. It is more realistic to assume that part of qH occurs after the piston has started its downwards motion in the expansion stroke....

Consider the conditions associated with the hot water pipe of Problem 7.56, but now account for the convection resistance associated with water flow at a mean velocity of U m = 0.5m/s in the pipe....

Two small spheres A and B, with masses of 2.5 kg and 1 kg, respectively, are connected by a rigid rod of negligible mass. The two spheres are resting on a horizontal, frictionless surface when A is...

Two identical uniform cylinders of mass m and radius r are at rest at time t = 0 when a couple M of constant magnitude M M

When operated from a 230-V dc supply, a dc series motor operates at 975 r/min with a line current of 90 A. Its armature-circuit resistance is 0.11 and its series-field resistance is 0.08. Due to...

The separation of air into nitrogen and oxygen is widely practiced. Cryogenic distillation is most economical for processing 100 to 5,000 tons of air per day, while pressure-swing-adsorption is...

In ratio control, would the control loop gain for Method I (Fig) be Less variable if the ratio were defined as R = d/u instead of R = u/d? Justify youranswer. Disturbance stream, d FT "p Ratio...

Suppose that the distillation column shown in figure has been designed to separate a methanol-water mixture that is .50% methanol (MeOH). This high purity column has a large number of trays and a...

How many moles of C2H5OH are needed to generate 106.7 g of H2O? C2H5OH() + 3O2(g) ( 2CO2(g) + 3H2O()

The schematic of a single-flash geothermal power plant with state numbers is given in Fig. P18-91. Geothermal resource exists as saturated liquid at 230oC. The geothermal liquid is withdrawn from the...

Find Vo in the circuit shown using Thevenins Theorem +12v

A steam power plant operates on an ideal reheatregenerative Rankine cycle with one re-heater and two open feedwater heaters. Steam enters the high-pressure turbine at 1500 psia and 1100F and leaves...

A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat a house. The mass flow rate of the refrigerant is 0.32 kg/s. The condenser and evaporator...

As a block of wood is sanded, it exerts on the disk of the sander a force F of magnitude 1.8 lb. Knowing that the belt forces exerted on the 5-in.- diameter pulley lie in a plane parallel to yz...

Consider the thick slab of copper in Example 5.10 which is initially at a uniform temperature of 20o0 and is suddenly exposed to large surroundings at 1000oC (instead of a prescribed heat flux). (a)...

Saturated steam enters a convergingdiverging nozzle at 3.0 MPa, 5 percent moisture, and negligible velocity, and it exits at 1.2 MPa. For a nozzle exit area of 16 cm2, determine the throat area, exit...

A vertical plate 500 mm high and 200 mm wide is to be used to condense saturated steam at 1 atm (a) At what surface temperature must the plate be maintained to achieve a condensation rate of m = 25...

Two uniform rods, each of mass m and length l, are welded together to form an L-shaped assembly. The assembly is constrained by two springs, each of constant k, and is in equilibrium in a vertical...

An unmodulated carrier of amplitude A c and frequency c and band-limited white noise are summed and then passed through an ideal envelope detector. Assume the noise spectral density to be of height...

A second-order system has a double pole at p1,2 = 0.5 and two zeros at z1.2 = ej3/4. Using geometric arguments, choose the gain G of the filter so that |H (0)| = 1.

Suppose three people are in a line waiting for a department store to open for the big sale. When the door opens, all three rush the door, bur the door is not big though for all of them to pass...

Toluene is to be separated from biphenyl by ordinary distillation. The specifications for the separation are as follows: Temperature = 264oF; Pressure = 37.1 psia for the feed Reflux ratio = 1.3...

A process temperature sensor/transmitter in a fermentation reactor exhibits second-order dynamics with time constants of 1 s and 0.1 s. If the quantity being measured changes at a constant rate of...

The state of stress at a point is x = 6, y = 18, z = 12, xy = 9, yz = 6, and zx = 15 kpsi. Determine the principal stresses, draw a complete Mohrs three-circle diagram, labeling all points of...

Repeat Prob. 285 assuming the electricity is produced by a power plant that burns coal. The average production of CO2 in this case is 1.1 kg per kWh.

It is often stated that the refrigerator door should be opened as few times as possible for the shortest duration of time to save energy. Consider a household refrigerator whose interior volume is...

A uniform sphere of radius r rolls down the incline shown without slipping. It hits a horizontal surface and, after slipping for a while, it starts rolling again. Assuming that the sphere does not...

A thin ring of radius r = 12 in. is attached by a collar at point A to a vertical shaft which rotates with a constant angular velocity . Determine (a) The value of for which the ring forms a...

Figure shows a PCM signal in which the amplitude levels of +1 volt and ?1 are used to represent binary symbols 1 and 0, respectively. The code word used consists of three bits. Find the sampled...

Air at 1 atm and 100C flows through a straight, 5-cm-diameter circular tube, cast from naphthalene, at a Reynolds number of 1,500. Air entering the tube has an established laminar-flow velocity...

For the network of Fig. 5.160: a. Determine Zi and Zo. b. Find Av. c. Calculate Vo if Vi = 1 mV. 12 V = 120 390 k 0 Z, -8 V

A steam power plant operates on the reheat regenerative Rankine cycle with a closed feedwater heater. Steam enters the turbine at 12.5 MPa and 550C at a rate of 24 kg/s and is condensed in the...

Two unsaturated airstreams are mixed adiabatically. It is observed that some moisture condenses during the mixing process. Under what conditions will this be the case?

Neglecting friction, determine the tension in cable ABD and the reaction at C when = 30 o . B.

A 28-g bullet is fired with a velocity of 550 m/s into a block A, which has a mass of 5 kg. The coefficient of kinetic friction between block A and the cart BC is 0.50. Knowing that the cart has a...

Plot the waveform of a GMSK modulator produced in response to the binary sequence 1101000, assuming the use of a gain-bandwidth product WTb = 0.3. Compare your result with that of Example 6.5.

For the conditions of Exercise 8.30, estimate: (a) Sauter mean drop size, (b) Range of drop sizes, and (c) Interfacial area of the two-phase liquid-liquid emulsion.

A fuel mixture having a molar analysis of 65% CH4, 25% C2H6, 10% N2 is supplied to a furnace where it burns completely with 120% of theoretical air. Determine. (a) The air-fuel ratio on a mass basis....

Write the chemical equation and the Kb expression for the reaction of each of the following bases with water: (a) Propylamine, C3H7NH2; (b) Monohydrogen phosphate ion, HPO42-; (c) Benzoate ion,...

A stream of warm air with a dry-bulb temperature of 40C and a wet-bulb temperature of 32C is mixed adiabatically with a stream of saturated cool air at 18C. The dry air mass flow rates of the warm...

For the portion of a machine shown, the 100-mm-diameter pulley A and wheel B are fixed to a shaft supported by bearings at C and D. The spring of constant 366 N/m is unstretched when θ = 0, and...

A vertical steel tube carries water at a pressure of 10 bars. Saturated liquid water is pumped into the D = 0.1 m diameter tube at its bottom end (x = 0) with a mean velocity of unt = 0.05 m/s. The...

In the simplified sketch of a ball bearing shown, the diameter of the inner race A is 2.5 in. and the diameter of each ball is 0.5 in. The outer race B is stationary while the inner race has an...

An annular fin of thickness t is used as a radiator to dissipate heat for a space power system. The fin is insulated on the bottom and may be exposed to solar irradiation GS. The fin is coated with a...

The exit composition C3 of the blending system in Fig is controlled using a digital feedback controller. The exit stream is automatically sampled every minute, and the composition measurement is sent...

Air at 500 kPa and 400 K enters an adiabatic nozzle at a velocity of 30 m/s and leaves at 300 kPa and 350 K. Using variable specific heats, determine (a) The isentropic efficiency, (b) The exit...

A paper mill has two steam generators, one at 4.5 MPa, 300C and one at 8 MPa, 500C. Each generator feeds a turbine, both of which have an exhaust pressure of 1.2 MPa and isentropic...

The absorber plate and the adjoining cover plate of a flat-plate solar collector are at 70 and 35C, respectively, and are separated by an air space of 0.05 m. What is the rate of free convection heat...

The acceleration of a particle is defined by the relation a = 0.4 v, where a is expressed in mm/s2 and v in mm/s. Knowing that at t = 0 the velocity is 75 mm/s, determine (a) The distance the...

The assembly shown consists of two pieces of sheet aluminum of uniform thickness and total mass 1.6 kg welded to a light axle supported by bearings A and B. Knowing that the assembly rotates with an...

A 1m x 1 m square solar collector is placed on the roof of a house. The collector receives a solar radiation flux of 800 W/m2. Assuming that the surroundings act as a blackbody at an effective sky...

Air is compressed steadily by an 8 - kW compressor from 100 kPa and 17°C to 600 kPa and 167°C at a rate of 2.1 kg/min. Neglecting the changes in kinetic and potential energies, determine. (a)...

The uniform hoop of weight W is suspended from the peg at A and a horizontal force P is slowly applied at B. If the coefficient of static friction between the hoop and peg is s, determine if it is...

A stream of ammonia enters a steady flow device at 100 kPa, 50C, at the rate of 1 kg/s. Two streams exit the device at equal mass flow rates; one is at 200 kPa, 50C, and the other as...

The sides and the base of a punch bowl are of uniform thickness t. If t <

Two parallel members ABC and DEF are placed between two walls and are connected by link BE. Neglecting friction between the members and the walls, determine the range of values of the distance a for...

Two packages are placed on an incline as shown. The coefficients of friction are s = 0.30 and k = 0.25 between the incline and package A, and s = 0.20 and k = 0.15 between the incline and package B....

Describe a new read function, xRead ( ) , along with other functions that could enable one to write programs in a high level language such that the application can continue processing after the xRead...

Acetic acid is to be extracted from a dilute aqueous solution with isopropyl ether at 25oC in a countercurrent cascade of mixer-settler units. In one of the units, the following conditions apply:...

Consider the distillation column shown in Figure. It would be reasonable to control the liquid level in the reflux drum, hD, by manipulating either reflux flow rate, R, or distillate flow rate, D....

At the equator, where the sun at noon is approximately overhead, a near optimum orientation for a flat plate solar hot water heater is in the horizontal position. Suppose a 4 m 4 m solar collector...

The uniform rod AB of mass m and length L is attached to two blocks which slide freely in circular slots as shown. Knowing that 45 α = °, determine (a) The largest value of L for which the...

The system shown, consisting of a 20-kg collar A and a 10-kg counterweight B, is at rest when a constant 500-N force is applied to collar A.(a) Determine the velocity of A just before it hits the...

A furnace with an aperture of 20-mm diameter and emissive power of 3.72 x 105 W/m2 is used to calibrate a heat flux gage having a sensitive area of 1.6 x 10-5 m2. (a) At what distance, measured along...

Consider the evaporation of liquid A into a column containing a binary gas mixture of A and B. Species B cannot be absorbed in liquid A and the boundary conditions are the same as in Section 14.2.2....

An indoor pool evaporates 1.512 kg/h of water, which is removed by a dehumidifier to maintain 21C, 70% in the room. The dehumidifier, shown in Fig P12.71, is a...

Each of the frames shown consists of two L-shaped members connected by two rigid links. For each frame, determine the reactions at the supports and indicate whether the frame is rigid.

Show that for an axisymmetrical body under no force, the rates of precession and spin can be expressed, respectively, as = HG/I and where HG is the constant value of the angular momentum of the...

Draw the shear and moment diagrams for the cantilevered beam. 1000 Ib 800 ib ft ft

A desublimation unit of the heat-exchanger type is to be sized for the recovery of 200 kg/h of benzoic acid (BA) from a gas stream containing 0.8 mol% BA and 99.2 mol% N 2 . The gas enters the unit...

A feedback control system has the open-loop transfer function, GOL(s) = 0.5Kce3s / (10s + 1). Determine the values of Kc for which the closed-loop system is stable using two approaches: (a) An...

The top of a 12 in. I-beam is maintained at a temperature of 500?F, while the bottom is at 200?F. The thickness of the web is 1/2 in. Air at 500?F is blowing along the side of the beam so that h = 7...

Propane is compressed isothermally by a piston cylinder device from 100C and 1 MPa to 4 MPa. Using the generalized charts, determine the work done and the heat transfer per unit mass of propane.

Draw a model like the one shown in Figure, for each of the following situations. Indicate whether or not there is deadlock in the situation. Assume that there is only one unit of each resource type....

A lopping pruner is used to cut a small branch at F. Handles AD and BE pivot about bolt B and blade AC pivots about fixed bolt A while bolt C can slide freely in the slot of handle BE. Determine the...

Bags of grass seed are stored on a wooden plank as shown. To move the plank, a 9° wedge is driven under end A. Knowing that the weight of the grass seed can be represented by the distributed load...

Shown is the cross section of an idler roller. Determine its mass moment of inertia and its radius of gyration with respect to the axis AA². (The density of bronze is 8580 kg/m3; of aluminum,...

The inner surface of a plane wall is insulated while the outer surface is exposed to an airstream at T . The wall is at a uniform temperature corresponding to that of the airstream. Suddenly, a...

The spectral transmissivity of a 50-m-thick polymer film is measured over the wavelength range 2.5m < < 15m. The spectral distribution may be approximated as = 0.80 for 2.5m < < 7m, = 0.05 for 7m...

A 25 mol% mixture of acetone (A) in water (W) is to be separated by distillation at an average pressure of 130 kPa into a distillate containing 95 mol% acetone and a bottoms containing 2 mol%...

Draw the shear and moment diagrams for thebeam 50 Ib/ft 200 lb ft C| 9 ft -4 ft

Andy and Wendy both wear glasses. On a cold winter day, Andy comes from the cold outside and enters the warm house while Wendy leaves the house and goes outside. Whose glasses are more likely to be...

A flow, 0.2 kg/s dry air, of moist air at 40C, 50% relative humidity flows from the outside state 1 down into a basement where it cools to 16C, state 2. Then it flows up to the living...

When 25.00 mL of unknown were passed through a Jones reductor, molybdate ion (MoO 2- 4 ) was converted into Mo 3+ . The filtrate required 16.43 mL of 0.010 33 M KMnO 4 to reach the purple end point....

When the high-temperature superconductor yttrium barium copper oxide (see Chapter 15 opening and Box 15-3) is heated under flowing H2, the solid remaining at 1 000C is a mixture of Y2O3, BaO, and Cu....

A 10-L rigid tank contains R-22 at 10C, 80% quality. A 10-A electric current (from a 6-V battery) is passed through a resistor inside the tank for 10 min, after which the R-22 temperature is 40C....

Determine the reactions at the beam supports for the given loading. Parabolas Nertices- 120 tvft 45 lb/ft -3.2 ft 2.1 ft-1.6 ft- -2.4 ft-

Ball B is suspended from a cord of length l attached to cart A, which can roll freely on a frictionless, horizontal track. The ball and the cart have the same mass m. If the ball is given an initial...

Argon gas expands from 3.5 MPa and 100°C to 500 kPa in an adiabatic expansion valve. For environment conditions of 100 kPa and 25°C, determine (a) The energy of argon at the inlet, (b) The...

Consider a vertical, single-pane window of equivalent width and height (W = L = 1m). The interior surface is exposed to the air and walls of a room, which are each at 18C. Under cold ambient...

The 4-kg rod AB can slide freely inside the 6-kg tube CD. The rod was entirely within the tube (x = 0) and released with no initial velocity relative to the tube when the angular velocity of the...

Suppose a file system is organized like the DOS file system and the device index contains 64K pointers. Explain how the file manager could be designed to use the 64K pointers to reference every...

The following performance data have been obtained for a distillation tower separating a 50/50 by weight percent mixture of methanol and water: Feed rate = 45,438 lb/h. Feed condition = bubble-point...

A long 1.2 m OD pipeline carrying oil is to be installed in Alaska. To prevent the oil from becoming too viscous for pumping, the pipeline is buried 3 m below ground. The oil is also heated...

An ideal vapor compression refrigeration cycle with R-134a as the working fluid operates between the pressure limits of 120 kPa and 700 kPa. The mass fraction of the refrigerant that is in the liquid...

The constant-speed magnetization curve for a 25-kW, 250-V dc machine at a speed of 1200 r/min is shown in Figure. This machine is separately excited and has an armature resistance of 0.14?. This...

During processor multiplexing using interrupts and the interval timer, the processor receives a timer interrupt when the interrupt request flag (interruptRequest) is set to TRUE by the interval timer...