A binary PAM wave is to be transmitted over a baseband channel with an absolute maximum bandwidth of 75 kHz. The bit duration is 10s. Find a raised-cosine spectrum that satisfies these requirements.

To correct a birth defect, the tibia of the leg is straightened using three wires that are attached through holes made in the bone and then to an external brace that is worn by the patient. Determine...

The three forces and a couple shown are applied to an angle bracket. (a) Find the resultant of this system of forces. (b) Locate the points where the line of action of the resultant intersects line...

In Section 5.5, the one-term approximation to the series solution for the temperature distribution was developed for a plane wan of thickness 2L that is initially at a uniform temperature and...

To determine air velocity changes, it is proposed to measure the electric current required to maintain a platinum wire of 0.5-mm diameter at a constant temperature of 77C in a stream of air at 27C....

A fan is to accelerate quiescent air to a velocity of 10 m/s at a rate of 4 m3/s. Determine the minimum power that must be supplied to the fan. Take the density of air to be 1.18 kg/m3

A cooking pan whose inner diameter is 20 cm is filled with water and covered with a 4-kg lid. If the local atmospheric pressure is 101 kPa, determine the temperature at which the water starts boiling...

Refrigerant-134a at 140 kPa and -10°C is compressed by an adiabatic 0.5-kW compressor to an exit state of 700 kPa and 60°C. Neglecting the changes in kinetic and potential energies and...

Determine the normal reaction at the roller A and horizontal and vertical components at pin B for equilibrium of the member. Units Used: kN = 103 N Given: F1 = 10kN F2 = 6kN a = 0.6 m b = 0.6 m c =...

The vapor pressure of toluene is given in Exercise 4.8, and that of n-heptane is given in the accompanying table. (a) Plot an x-y equilibrium diagram for this system at 1 atm by using Raoult's and...

Determine the internal forces at point J of the structure shown. 10 in.- 75 in. 75 in. C. 12 in -6 in- -6 in

Consider a tube wall of inner and outer radii r; and r o , whose temperatures are maintained at T i and T o , respectively. The thermal conductivity of the cylinder is temperature dependent and may...

Gear C is rigidly attached to arm AB. If the forces and couple shown can be reduced to a single equivalent force at A, determine the equivalent force and the magnitude of the couple M. 400 400 200 N

The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes. The actuating mechanism is to be arranged to produce the...

Consider a steady, turbulent boundary layer on an isothermal flat plate of temperature Ts- The boundary layer is "tripped" at the leading edge x = 0 by a fine wire. Assume constant physical...

A 120-V: 2400-V, 60-Hz, 50-kVA transformer has a magnetizing reactance (as measured from the 120-V terminals) of 34.6 . The 120-V winding has a leakage reactance of 27.4m and the 2400-V winding has...

Consider the nodal point 0 located on the boundary between materials of thermal conductivity kA and kB. Derive the finite-difference equation, assuming no internal generation. Material A Ay kA Ax=Ay...

A certain gasoline engine has an efficiency of 30%; that is, it converts into useful work 30% of the heat generated by burning a fuel. If the engine consumes 0.80 L/h of a gasoline with a heating...

A mixture is 10.0mole % ethyl alcohol 75.0 mole% ethyl acetate (C 4 H 8 O 2 ) and 15.0mole% acetic acid. Calculate the mass fractions of each compound. What is the average molecular weight of the...

Reduction of evaporation losses by transpiration (Fig. 11B.7), it is proposed to reduce the rate of evaporation of liquefied oxygen in small containers by taking advantage of transpiration. To do...

A 150-liter cylinder of carbon monoxide is stored in a 30.7-m3 room. The pressure gauge on the tank reads 2500 psi when the tank is delivered. Sixty hours later the gauge reads 2245 psi, indicating a...

The synthesis of methanol from carbon monoxide and hydrogen is carried out in a continuous vapor-phase reactor at 5.00 atm absolute. The feed contains CO and H2 in stoichiometric proportion and...

A 2 2 - in sleeve bearing uses grade 20 lubricant. The axial-groove sump has a steady-state temperature of 110F. The shaft journal has a diameter of 2.500 in with a unilateral tolerance of 0.001...

The 10-lb uniform rod ABD is attached to the crank BC and is fitted with a small wheel that can roll without friction along a vertical slot. Knowing that at the instant shown crank BC rotates with an...

Draw the shear and moment diagrams for the cantileverbeam. 300 1 200 /ft -6 ft

A coal-burning steam power plant produces a net power of 300 MW with an overall thermal efficiency of 32 percent. The actual gravimetric airfuel ratio in the furnace is calculated to be 12 kg air/kg...

A rigid 5.00-liter vessel contains 4.00 L of liquid water in equilibrium with 1.00 L of water vapor at 25C. Heat is transferred to the water by means of an immersed electrical coil. The volume of the...

Two automobiles A and B are approaching each other in adjacent highway lanes. At t = 0, A and B are 0.62 mi apart, their speeds are vA = 68 mi/h and vB = 39 mi/h, and they are at points P and Q,...

The window of a large vacuum chamber is fabricated from a material of prescribed spectral characteristics. A collimated beam of radiant energy from a solar simulator is incident on the window and has...

Coated metallic disks are cured by placing them at the top of a cylindrical furnace whose bottom surface is electrically heated and whose sidewall may be approximated as a reradiating surface. Curing...

The density of atmospheric air varies with elevation, decreasing with increasing altitude. (a) Using the data given in the table, obtain a relation for the variation of density with elevation, and...

Carbon dioxide (CO2) gas within a piston-cylinder assembly undergoes an expansion from a state where P1= 20 lbf/in2, V1= 0.5ft3 to a state where P2=5 lbf/in2, V2= 2.5ft3. the relationship between...

A 200-lb crate is attached to the trolley-beam system shown. Knowing that a = 1.5 ft, determine (a) The tension in cable CD, (b) The reaction at B. 1.5 A 55 Fosa

The acceleration due to gravity of a particle falling toward the earth is a = ?gR2/r2, where r is the distance from the center of the earth to the particle, R is the radius of the earth, and g is the...

Flow of gas through a packed column, a horizontal tube with diameter 4 in. and length 5.5 ft is packed with glass spheres of diameter 1/16 in., and the void fraction is 0.41. Carbon dioxide is to be...

A gas stream containing acetone in air flows from a solvent recovery unit at a rate of 142L/s at 150?C and 1.3 atm. The stream flows into a condenser which liquefies most of the acetone, and the...

The following chemical reactions take place in a liquid-phase batch reactor of constant volume V. A 2B r1 [mol A consumed/ (Ls)] = 0.100CA B C r2 [mol C generated/(Ls) = 0.200C2B where the...

An opaque, diffuse, gray (200 mm by 200 mm) plate with an emissivity of 0.8 is placed over the opening of a furnace and is known to be at 400 K at a certain instant. The bottom of the furnace having...

BH+ ClO-4 is a salt formed from the base B (Kb = 1.00 10-4) and perchloric acid. It dissociates into BH+, a weak acid, and ClO-4, which is neither an acid nor a base. Find the pH of 0.100 M BH+ClO-4.

A binary mixture of mole fraction zj is flashed (o conditions T and P, Fur one of the following determine: the equilibrium mole fractions x1 and y1 of the liquid and vapor phases formed, the molar...

An insulated tank containing 0.4 m3 of saturated water vapor at 500 kPa is connected to an initially evacuated, insulated pistoncylinder device. The mass of the piston is such that a pressure of 150...

The friction hook is made from a fixed frame which is shown colored and a cylinder of negligible weight. A piece of paper is placed between the smooth wall and the cylinder. Determine the smallest...

A force P is applied to a bent rod which is supported by a roller and a pin and bracket. For each of the three cases shown, determine the internal forces at point J.

A single-threaded steel worm rotates at 1725 rev/min, meshing with a 56-tooth worm gear transmitting 1 hp to the output shaft. The pitch diameter of the worm is 1.50. The tangential diametral pitch...

A wire of diameter D = 2 mm and uniform temperature T has an electrical resistance of 0.01 n/m and a current flow of 20 A. (a) What is the rate at which heat is dissipated per unit length of wire?...

A girl throws a ball at an inclined wall from a height of 3 ft, hitting the wall at A with a horizontal velocity v0 of magnitude 25 ft/s. Knowing that the coefficient of restitution between the ball...

Two large blocks of different materials, such as copper and concrete have been sitting in a room (23C) for a very long time. Which of the two blocks if either will feel colder to the touch? Assume...

A vertical channel 152 Ã 76 (see Table A7) has a cantilever beam bolted to it as shown. The channel is hot-rolled AISI 1006 steel. The bar is of hot-rolled AISI 1015 steel. The shoulder bolts...

(a) The measured pH of 0.100 M HCl at 25C is 1.092. From this information, calculate the activity coefficient of H+ and compare your answer with that in Table 7-1.

A procedure for measuring the thermal conductivity of solids at elevated temperatures involves placement of a sample at the bottom of a large furnace. The sample is of thickness L and is placed in a...

A molten aluminum alloy at 900 K is poured into a cylindrical container that is well insulated from large surroundings at 300 K. The inner diameter of the container is 250 mm, and the distance from...

The tip of a soldering iron consists of a 0.6-cm-OD copper rod, 7.6 cm long. If the tip must be 204?C, what is the required minimum temperature of the base and the heat flow, in Btu??s per hour and...

A steel sphere with a diameter of 7.6 cm is to be hardened by first heating it to a uniform temperature of 870?C and then quenching it in a large bath of water at a temperature of 38?C. The following...

A constant-volume tank contains a mixture of 1 kmol of benzene (C6H6) gas and 30 percent excess air at 25C and 1 atm. The contents of the tank are now ignited, and all the hydrogen in the fuel burns...

A stream of air at 77F and 1.2 atm absolute flowing at a rate of 200 ft/h is blown through ducts that pass through the interior of a large industrial motor. The air emerges at 500F. Using tabulated...

For a solid solution consisting of two elements (designated as 1 and 2), sometimes it is desirable to determine the number of atoms per cubic centimeter of one element in a solid solution, N 1 ,...

The tool is used to shut off gas valves that are difficult to access. If the force F is applied to the handle, determine the component of the moment created about the z axis of thevalve. F=1-601 +...

Draw the shear and moment diagrams for thebeam 250 N/m -2 m- 2 m 500 N

The homogeneous wire ABCD is bent as shown and is supported by a pin at B. Knowing that 200 l = mm, determine the angle θ for which portion BC of the wire is horizontal. 150 mm 150 nm

Water flows through a thick-walled tube with an inner diameter of 12 mm and a length of 8 m. The tube is immersed in a well-stirred, hot reaction tank maintained at 85C, and the conduction resistance...

A natural gas is analyzed and found to consist of 87.5% v/v (volume percent) methane, 7.0% ethane, 2.0% propane, and 3.5% N 2 (noncombustible). (a) Calculate the higher heating value and the lower...

For a bolted assembly, the stiffness of each bolt is kb = 4 Mlbf/in and the stiffness of the members is km = 12 Mlbf/in per bolt. The joint is subject to occasional disassembly for maintenance and...

A compound with molecular mass 292.16 g/mol was dissolved in a 5-mL volumetric flask. A 1.00-mL aliquot was withdrawn, placed in a 10-mL volumetric flask, and diluted to the mark. The absorbance at...

Consider the following fluids at a film temperature of 300 K in parallel flow over a flat plate with velocity of 1 m/s: atmospheric air, water, engine oil, and mercury. (a) For each fluid, determine...

The condenser of a steam power plant consists of AISI 302 stainless steel tubes (k s = 15 W/m K) each of outer and inner diameters Do = 30 mm and Di = 26 mm, respectively. Saturated steam at 0.135...

Consider an automobile with a mass of 5500lb m braking to a stop from a speed of 55 miles/h. (a) How much energy (Btu) is dissipated as heat by the friction of the braking process? (b) Suppose that...

A foot valve for a pneumatic system is hinged at B. Knowing that = 28, determine the moment of the 4-lb force about point B by resolving the force into horizontal and vertical components. 65 ka. 3...

A cross-flow heat exchanger used in a cardio-pulmonary bypass procedure cools blood flowing at 5 liter/min from a body temperature of 37C to 25C in order to induce body hypothermia, which reduces...

Three cables are used to tether a balloon as shown. Determine the vertical force P exerted by the balloon at A knowing that the tension in cable AC is 444 N. 5.60 m 3.30 in 420 m 240 m

The net potential energy between two adjacent ions, E N , may be represented by the sum of Equations 2.8 and 2.9; that is, Calculate the bonding energy E 0 in terms of the parameters A, B, and n...

Determine the diameter and packed height of a countercurrently operated packed tower required to recover 99% of the ammonia from a gas mixture that contains 6 mol% NH3 in air. The tower, packed with...

Using the method of joints, determine the force in each member of the truss shown. State whether each member is in tension or compression. 16 kN 13 KN 00 m D. 1.2 m 1.2 m

Consider flow in a circular tube within the test section length (between 1 and 2) a constant heat flux q" s is maintained. (a) For the following two cases, sketch the surface temperature Ts(x) and...

The crane shown rotates at the constant rate 1 = 0.25 rad/s; simultaneously, the telescoping boom is being lowered at the constant rate 2 = 0.40 rad/s. Knowing that at the instant shown the length of...

Determination of diffusivity for ether-air system the following data on the evaporation of ethyl ether (C 2 H 5 OC 2 H 5 ) have been tabulated by Jost. 2 The data are for a tube of 6.16 mm diameter,...

A Thermocouple is a temperature-measurement device that consists of two dissimilar metal wires joined at one end. An oversimplified diagram follows. A voltage generated at the metal junctions is read...

The handle of a ladle used for pouring molten lead is 30 cm long. Originally the handle was made of 1.9 1.25 cm mild steel bar stock. To reduce the grip temperature, it is proposed to form the...

Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500C and is cooled in the condenser at a pressure of 10 kPa. Show the cycle...

The wind chill, which is experienced on a cold, windy day, is related to increased heat transfer from exposed human skin to the surrounding atmosphere. Consider a layer of fatty tissue that is 3 mm...

Consider the non-lifting flow over a circular cylinder. Derive an expression for the pressure coefficient at an arbitrary point (r, ) in this flow, and show that it reduces to Eq. (3.101) on the...

A stream of air (21 mole% O 2 , the rest N 2 ) flowing at a rate of 10.0 kg/h is mixed with a stream of CO 2 . The CO 2 enters the mixer at a rate of 20.0m 3 /h at 150C and 1.5 bar what is the mole...

Two plane coaxial disks are separated by a distance L = 0.20 m. The lower disk (A 1 ) is solid with a diameter D o = 0.80 m and a temperature T 1 = 300 K. The upper disk (A 2 ), at temperature Tz =...

A 10 m3 rigid tank contains saturated vapor of H2O at 200oC. The tank is cooled until the quality drops to 80%. Determine the (a) Mass of H2O in the tank. (b) Drop in pressure (p). (c) Drop in...

A garden hose attached with a nozzle is used to fill a 20-gal bucket. The inner diameter of the hose is 1 in and it reduces to 0.5 in at the nozzle exit. If the average velocity in the hose is 8...

In an arm wrestling contest, a 150-lb force P is applied to the hand of one of the contestants by his opponent. Knowing that AB = 15.2 in. and BC = 16 in., determine the moment of the force about C.

Phosphate at 0.01 M is one of the main buffers in blood plasma, whose pH is 7.45. Would phosphate be as useful if the plasma pH were 8.5?

The beam will fail when the maximum shear force is Vmax or the maximum bending moment is Mmax. Determine the magnitude M0 of the largest couple moments it will support. Units Used: kN = 103 N Given:...

Sax and Lewis12 describe the hazards of breathing air containing appreciable amounts of an asphyxiant (a gas that has no specific toxicity but, when inhaled, excludes oxygen from the lungs). When the...

The exposed surface (x = 0) of a plane wall of thermal conductivity k is subjected to microwave radiation that causes volumetric heating to vary as where q"0 (W/m3) is a constant. The boundary at x =...

Using the enthalpy'concentration diagram of Figure, determine the following for a mixture of n-hexane (H) and n-octane (0) at I atm: (a) The temperature and compositions of equilibrium liquid and...

The outer surface of a hollow sphere of radius r 2 is subjected to a uniform heat flux q 2 . The inner surface at r 1 is held at a constant temperature T .1 . (a) Develop an expression for the...

One thousand kilograms per hour of a mixture containing equal parts by mass of methanol and water is distilled. Product streams leave the top and the bottom of the distillation column. The flow rate...

A liquid mixture containing 50 mole% propane, 30% n-butane, and 20% isobutene is stored in a rigid container at 77F. The container has a maximum allowable working pressure of 200 psig. The head space...

The force F = {25i ? 50j + 10k} N acts at the end of the pipe assembly. Determine the magnitude of the components F 1 and F 2 which act along the axis of AB and performance to it. 6 ft ft

Compare the force exerted on the toe and heel of a 120-lb woman when she is wearing regular shoes and stiletto heels. Assume all her weight is placed on one foot and the reactions occur at points A...

A 3/4 in-16 UNF series SAE grade 5 bolt has a -in ID steel tube 10 in long, clamped between washer faces of bolt and nut by turning the nut snug and adding one-third of a turn. The tube OD is the...

For an equimolar vapor mixture of propane(l) anti n-pentane(2) at 75°C and 2 bar. estimate Z, HR. and SR, Second virial coefficients, in cm3 mol-1: Equations (3.38), (6.55). (6.36). and (11.62)...

A plane wall of thickness 2 L = 40 mm and thermal conductivity k = 5 W/m K experiences uniform volumetric heat generation at a rate q, while convection heat transfer occurs at both of its surfaces...

An electrically heated process is known to exhibit second-order dynamics with the following parameter values K is 3 C/kW, = 3 mm, = 0.7. If the process initially is at steady state at 70 C with...

The graph shows van Deemter curves for n-nonane at 70°C in the 3.0-m-long microfabricated column in Box 23-2 with a 1- to 2-m-thick stationary phase. (a) Why would air be chosen as the carrier...