Each cable of the side spans of the Golden Gate Bridge supports a load w = 10.2 kips/ft along the horizontal. Knowing that for the side spans the maximum vertical distance h from each cable to the...

Chilled ethylene glycol (sp gr = 1.11) is pumped through the shell side of a condenser and a control valve at a nominal flow rate of 200 gal/min. The total pressure drop over the entire system is...

Fractional composition in a tetraprotic system. Prepare a fractional composition diagram analogous to Figure 9-4 for the tetraprotic system derived from hydrolysis of Cr3+: Cr3+ + (H2O) Cr(OH)2+ +...

One-dimensional steady-state conduction with no internal energy generation is occurring in a plane wall of constant thermal conductivity. (a) Is the prescribed temperature distribution possible?...

Engine oil flows through a 25-mm-diameter tube at a rate of 0.5 kg/so The oil enters the tube at a temperature of 25C, while the tube surface temperature is maintained at 100C. (a) Determine the oil...

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 components along ABC and in a direction...

Incompressible flow in an annulus, Water at 60F is being delivered from a pump through a coaxial annular conduit 20.3 ft long at a rate of 241 U.S. gal/min, the inner and outer radii of the annular...

A 4-L rigid tank contains 2 kg of saturated liquidvapor mixture of water at 50°C. The water is now slowly heated until it exists in a single phase. At the final state, will the water be in the...

Determine the components of the reactions at A and E when a 320-N force directed vertically downward is applied (a) At B, (b) At D. 100 mm IB 400 mm E (O 250 mm

The composite wall of an oven consists of three materials, two of which are of known thermal conductivity, k A = 20 W/m K and kc = 50 W/m K, and known thickness, LA = 0.30 m and Lc = 0.15 m. The...

Repeat Prob. 819 with the bottom aluminum plate replaced by one that is 20 mm thick. Repeat Prob. 819, A 30-mm thick AISI 1020 steel plate is sandwiched between two 10-mm thick 2024-T3 aluminum...

A 73-kg gymnast is executing a series of full-circle swings on the horizontal bar. In the position shown he has a small and negligible clockwise angular velocity and will maintain his body straight...

A Fink roof truss is loaded as shown. Determine the force in members FH, FG, and EG. 50 LI11.13

Dry ice (solid CO2) has been used as a mine explosive in the following manner. A hole is drilled into the mine wall, filled with dry ice plus a small charge of gunpowder, and then plugged. The...

The bolt is subjected to the force F, which has components acting along the x, y, z axes as shown. If the magnitude of F is 80 N, and ? = 60? and ? = 45?, determine the magnitudes of its components....

A water pump delivers 3 hp of shaft power when operating. If the pressure differential between the outlet and the inlet of the pump is measured to be 1.2 psi when the flow rate is 8 ft3/s and the...

During an experiment conducted in a room at 25°C, a laboratory assistant measures that a refrigerator that draws 2 kW of power has removed 30,000 kJ of heat from the refrigerated space, which is...

As noted in Problem 5.3, microwave ovens operate by rapidly aligning and reversing water molecules within the food, resulting in volumetric energy generation and, in turn, cooking of the food. When...

Determine the reactions at A and D when = 30. 280 mm 180 mm 100 mm 150 N

Three children are standing on a 15 15- ft raft. If the weights of the children at points A, B, and C are 85 lb, 60 lb, and 90 lb, respectively, determine the magnitude and the point of application...

A 50-lb cabinet is mounted on casters that allow it to move freely ( = 0) on the floor. If a 25-lb force is applied as shown, determine (a) The acceleration of the cabinet, (b) The range of values of...

A gas stream consisting of n-hexane in methane is fed to a condenser at 60C and 1.2 atm. The dew point of the gas (considering hexane as the only condensable component) is 55C. The gas is cooled to...

In Problem 14.37, NO 2 transport by diffusion in a stagnant atmosphere was considered for steady-state conditions. However, the problem is actually time dependent, and a more realistic approach would...

An engine oil cooler consists of a bundle of 25 smooth tubes, each of length L = 2.5 m and diameter D = 10 mm. (a) If oil at 300 K and a total flow rate of 24 kg/s is in fully developed flow through...

The synthesis of ethyl chloride is accomplished by reacting ethylene with hydrogen chloride in the presence of an aluminum chloride catalyst: C 2 H 4 (g) + HC1 (g) catalyst ? C 2 H 5 C1 (g): ?H ?...

Repeat Prob. 29 for a part made from hot-rolled AISI 1212 steel. Repeat Prob. 29, A part made from annealed AISI 1018 steel undergoes a 20 percent cold-work operation. (a) Obtain the yield strength...

A solar collector consists of a parallel plate channel that is connected to a water storage plenum at the bottom and to a heat sink at the top. The channel is inclined 0 = 30 from the vertical and...

Determine the mass moment of inertia of the steel machine element shown with respect to the z axis. (The density of steel is 7850 kg/m 3 .) 360 mim S0 mm 200 mm 240 mm 50 mm 100 mm

Consider the following transfer function: (a) What is the steady-slate gain? (b) What is the time constant? (c) If U(s) = 2/s, what is the value of the output y(t) when t ? ?? (d) For the same U(s),...

A heat exchanger used to heat a glycol solution with a hot oil is known to exhibit first-order-plus-time-delay behavior, G 1 (s) = T?(s)/Q?(s), where r is the outlet temperature deviation and Q? is...

Consider the plane wall, long cylinder, and sphere shown schematically, each with the same characteristic length a. thermal conductivity k, and uniform volumetric energy generation rate q. (a) On the...

Loss of catalyst particles in stack gas (a) Estimate the maximum diameter of micro spherical catalyst particles that could be lost in the stack gas of a fluid cracking unit under the following...

Two rigid tanks are connected by a valve. Tank A is insulated and contains 0.2 m3 of steam at 400 kPa and 80 percent quality. Tank B is uninsulated and contains 3 kg of steam at 200 kPa and...

Determine the reactions at the beam supports for the given loading. 1.8 kN/m -1.2 m- -3.6 m 0.8 m

A collar B of mass m is attached to the spring AB and can move along the rod shown. The constant of the spring is 1.5kN/m and the spring is unscratched when θ = 0. Knowing that the coefficient...

A long plastic rod of 30-mm diameter (k = 0.3 W/m K and pc p = 1040kJ/m 3 K) is uniformly heated in an oven as preparation for a pressing operation. For best results, the temperature in the rod...

An opaque surface with the prescribed spectral, hemispherical reflectivity distribution is subjected to the spectral irradiation shown. (a) Sketch the spectral hemispherical absorptivity...

The cross section of a long circular tube, which is divided into two semi cylindrical ducts by a thin wall, is shown below. Sides 1 and 2 are maintained at temperatures of T 1 = 600 K and T 2 = 400...

A cell was prepared by dipping a Cu wire and a saturated calomel electrode into 0.10 M CuSO 4 solution. The Cu wire was attached to the positive terminal of a potentiometer and the calomel electrode...

A mixture (A) in a continuous pharmaceutical manufacturing process Contains up to 10 wt% of an ingredient R [mass fraction x RA (g R/g A)1. The mixture is subjected to a reaction step in which the...

The compartment heater of an automobile exchanges heat between warm radiator fluid and cooler outside air, the flow rate of water is large compared to the air, and the effectiveness, , of the heater...

Saturated-liquid feed, of F = 40 mollh, containing 50 mol% A and B is supplied continuously to the apparatus shown in Figure. The condensate from the condenser is split so that half of it is returned...

Consider the chromatogram of deuterated benzenes in Box 24-1. (a) Unretained thiourea, is eluted in 41.7 min. Find the linear velocity ux (mm/s). (b) Find the retention factor k for C6D6. (c) Find...

For the curved beam shown, F = 30 kN. The material is steel with E = 207 GPa and G = 79 GPa. Determine the relative deflection of the applied forces. 40 50 10 Section A-A (All dimensions in...

Knowing that at the instant shown bar AB is rotating counterclockwise and that the magnitude of the velocity of the midpoint of bar BC is 7.8 ft/s, determine(a) The angular velocity of bar AB,(b) The...

Two identical 4-lb slender rods AB and BC are connected by a pin at B and by the cord AC. The assembly rotates in a vertical plane under the combined effect of gravity and a couple M applied to rod...

Write the formula for each of the following compounds, being sure to use brackets to indicate the coordination sphere: (a) Tetraaquadibromomanganese(III) perchlorate (b) Bis(bipyridyl)cadmium(II)...

Cord AB of length a is attached to the end B of a spring having an unstretched length b. The other end of the spring is attached to a roller C so that the spring remains horizontal as it stretches....

The lever AB is welded to the bent rod BCD which is supported by bearings at E and F and by cable DG. Knowing that the bearing at E does not exert any axial thrust, determine (a) The tension in cable...

An air-conditioner with refrigerant-134a as the working fluid is used to keep a room at 26°C by rejecting the waste heat to the outdoor air at 34°C. The room gains heat through the walls and...

A shell-and-tube heat exchanger is to heat 10,000 kg/h of water from 16 to 84C by hot engine oil flowing through the shell. The oil makes a single shell pass, entering at 160C and leaving at 94C,...

Using partial fraction expansion where required, find x(t) for s(s + 1) (s + 2)(s + 3)(s + 4) (a) X(s) s+1 (b) X(s) (s + 2)(s + 3)(s? + 4) s+4 (c) X(s) - (s + 1) (d) X(s) - 2 +s+1 s+1 0.51 (e) X(s)...

A solar-power-tower plant is considered for Houston, Texas. Heliostats with a total area of 400,000 ft2 are to be used to reflect solar radiation into a receiver. When the solar irradiation is 250...

Consider the following fluids, each with a velocity of V = 5 m/s and a temperature of Try; = 20C, in cross flow over a 10-mm diameter cylinder maintained at 50C: atmospheric air, saturated water, and...

Slug flow is an idealized tube flow condition for which the velocity is assumed to be uniform over the entire tube cross section. For the case of laminar slug flow with a uniform surface heat flux,...

A system gains 2780 J of heat at a constant pressure of 1.26 105 Pa, and its internal energy increases by 3990 J. What is the change in the volume of the system, and is it an increase or a decrease?

A mass of 12 kg of saturated refrigerant-134a vapor is contained in a pistoncylinder device at 240 kPa. Now 300 kJ of heat is transferred to the refrigerant at constant pressure while a 110-V source...

A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries helium at 200 kPa and 120°C. Now the valve is opened, and helium is allowed to flow...

The density and specific heat of a particular material are known (p = 1200 kg/m 3 c p = 1250 J/kg K), but its thermal conductivity is unknown. To determine the thermal conductivity, a long...

A section of track for a roller coaster consists of two circular arcs AB and CD joined by a straight portion BC. The radius of AB is 27 m and the radius of CD is 72 m. The car and its occupants, of...

Determine the ratio a/b for which the shear force will be zero at the midpoint C of the beam. B. - b2 - b/2

Consider design B of Problem 3.137. Over time, dust can collect in the fine grooves that separate the fins. Consider the buildup of a dust layer of thickness Ld, as shown in the sketch. Calculate and...

An electrically heated, stirred-tank system is shown in figure. Using the given information do the following: (a) Draw a block diagram for the case where T 3 is the controlled variable and voltage...

Design a central annular-groove pressure-fed bearing with an l/d ratio of 0.5, using SAE grade 20 oil, the lubricant supplied at 30 psig. The exterior oil cooler can maintain the sump temperature at...

A pistoncylinder device contains steam initially at 1 MPa, 450C, and 2.5 m3. Steam is allowed to cool at constant pressure until it first starts condensing. Show the process on a T-v diagram with...

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 100 lb. 16.8 & 126 9.4 126 7.2

The 2-kg rod AB and the 3-kg rod BC are connected as shown to a disk that is made to rotate in a vertical plane. Knowing that at the instant shown the disk has an angular acceleration of 18 rad/s2...

As will be discussed in detail in Chapter 5, the ideal gas equation of state relates absolute pressure, P(atm); gas volume, V(liters); number of moles of gas, n(mol); and absolute temperature, T(K);...

A yellow pine rod (SG = 0.65) is 5 cm by 5 cm by 2.2 m long. How much lead (SG = 11.4) is needed at one end so that the rod will float vertically with 30 cm out of the water? 0.3 m Wood 1.9 m Lead

Combustion in a diesel engine may be modeled as a constant-pressure heat addition process with air in the cylinder before and after combustion. Consider a diesel engine with cylinder conditions of...

The neighborhood cat likes to sleep on the roof of our shed in the backyard. The roofing surface is weathered galvanized sheet metal ( = 0.65, S = 0.8). Consider a cool spring day when the ambient...

A 700-N force P is applied at point A of a structural member. Replace P with (a) An equivalent force-couple system at C, (b) An equivalent system consisting of a vertical force at B and a second...

A fan that can provide air speeds up to 50 m/s is to be used in a low-speed wind tunnel with atmospheric air at 25C. If one wishes to use the wind tunnel to study flat-plate boundary layer behavior...

The system shown starts from rest and each component moves with a constant acceleration. If the relative acceleration of block C with respect to collar B is 120 mm/s2 upward and the relative...

Selenium from 0.108 g of Brazil nuts was converted into the fluorescent product in Reaction 17-15, which was extracted into 10.0 mL of cyclohexane. Then 2.00 mL of the cyclohexane solution were...

The frame ACD is hinged at A and D and is supported by a cable that passes through a ring at B and is attached to hooks at G and H. Knowing that the tension in the cable is 1125 N, determine the...

A pulley and two loads are connected by inextensible cords as shown. Load A has a constant acceleration of 10 in/s2 and an initial velocity of 8 in/s, both directed upward. Determine (a) The number...

For the homogeneous tetrahedron of mass m shown, (a) Determine by direct integration the mass product of inertia a Izx, (b) Deduce Iyz and Ixy from the results obtained in part a.

Blocks A and B have masses of 4 kg and 1.5 kg, respectively, and are connected by a cord-and-pulley system and released from rest in the position shown with the spring undeformed. Knowing that the...

A meter to measure the optical power of a laser beam is constructed with a thin walled, black conical cavity that is well insulated from its housing. The cavity has an opening of D = 10 mm and a...

A Carnot heat engine receives heat from a reservoir at 1700F at a rate of 700 Btu/min and rejects the waste heat to the ambient air at 80F. The entire work output of the heat engine is used to drive...

In Chapter 1, it was stated that for incompressible liquids, flow work could usually be neglected in the steady-flow energy equation (Equation 1.11d). In the trans-Alaska pipeline, the high viscosity...

A solution containing hazardous waste is charged into a storage tank and subjected to a chemical treatment that decomposes the waste to harmless products. The concentration of the decomposing waste,...

The frame is used to support the 100-kg cylinder E. Determine the horizontal and vertical components of reaction at A andD. -1.2 m- 0.1 m D. 0,6 m

A process consists of five perfectly stirred tanks in Series. The volume in each tank is 30 L, and the volumetric flow rate through the system is 5 L/min. At some particular time, the inlet...

For the liquid storage system shown in Fig the control objective is to regulate liquid level h2 despite disturbances in flow rates, q1 and q4. Flow rate q2 can be manipulated. The two hand valves...

Replace the loading by a single resultant force, and specify the location of the force on the beam measured from point O. Units Used: kN = 103 N Given: w = 6 kN/m F = 15 kN M = 500 kN m a = 7.5 m b =...

A horizontal rod 5 mm in diameter is immersed in water maintained at 18C. If the rod surface temperature is 56C, estimate the free convection heat transfer rate per unit length of the rod.

The standard heat of reaction for the combustion of liquid n-nonane to form CO2 and liquid water at 25C and 1 atm is H = 6124 kJ/mol. (a) Briefly explain what that means. Your explanation may take...

A shell-and-tube heat exchanger consists of 135 thin-walled tubes in a double-pass arrangement, each of 12.5-mm diameters with a total surface area of 47.5 m 2 . Water (the tube-side fluid) enters...

A hole of diameter D = 0.25 m is drilled through the center of a solid block of square cross section with w = 1m on a side. The hole is drilled along the length, 1 = 2 m, of the block, which has a...

A 1-m3 tank contains 2.841 kg of steam at 0.6 MPa. Determine the temperature of the steam, using (a) The ideal gas equation, (b) The van der Waals equation, and (c) The steam tables. Answers: (a)...

In the Deacon process for the manufacture of chlorine, HC 1 and O 2 react to form Cl 2 and H 2 0. Sufficient air (21 mole% 0 2 , 79% N 2 ) is fed to provide 35% excess oxygen and the fractional...

An air-standard Diesel cycle has a compression ratio of 18.2. Air is at 80F and 14.7 psia at the beginning of the compression process and at 3000 R at the end of the heat addition process. Accounting...

Asphalt pavement may achieve temperatures as high as 50C on a hot summer day. Assume that such a temperature exists throughout the pavement, when suddenly a rainstorm reduces the surface temperature...

Air at 10 m/s and 15C is used to cool a square hot molded plastic plate 0.5 m to a side having a surface temperature of 140C. To increase the throughput of the production process, it is proposed to...

The same tank from Prob. 2.139 is now accelerating while rolling up a 30° inclined plane, as shown. Assuming rigid body motion, compute (a) The acceleration a, (b) Whether the acceleration is up...

A long, uninsulated steam line with a diameter of 89 mm and a surface emissivity of 0.8 transports steam at 200C and is exposed to atmospheric air and large surroundings at an equivalent temperature...

Viscous heating in laminar tube flow (a) Continue the analysis begun in Problem 11B.2--namely, that of finding the temperature profiles in a NewtonJan fluid flowing in a circular tube at a speed...

A 0.18-m3 rigid tank is filled with saturated liquid water at 120C. A valve at the bottom of the tank is now opened, and one-half of the total mass is withdrawn from the tank in the liquid form. Heat...