Assuming the upward reaction of the ground on beam AB to be uniformly distributed, (a) Draw the shear and bending moment diagrams, (b) Determine the maximum absolute values of the shear and bending...

For the network of Fig. 7.96, determine: a. IDQ and VGSQ. b. VDS and VS. 18 V 2.2 k DSS = 8 mA 1 GS 0 0.39 k -4V

Water flows through a shower head steadily at a rate of 10 L/min. An electric resistance heater placed in the water pipe heats the water from 16 to 43°C. Taking the density of water to be 1 kg/L,...

Refrigerant-134a at 1.4 MPa and 90C is throttled to a pressure of 0.6 MPa. The temperature of the refrigerant after throttling is (a) 22C (d) 80C (b) 56C (e) 90C (c) 82C

A steam power plant operates on a simple ideal Rankine cycle between the pressure limits of 1250 and 2 psia. The mass flow rate of steam through the cycle is 75 lbm/s. The moisture content of the...

Consider an ideal gas-turbine cycle with two stages of compression and two stages of expansion. The pressure ratio across each compressor stage and each turbine stage is 8 to 1. The pressure at the...

The 12-lb slender rod AB is pinned at A and Knowing that the diameter of the cylinder is 12.5 in. and that the coefficient of static friction is 0.35 between all surfaces of contact, determine the...

An engineer desires to measure the thermal conductivity of an aero-gel material. It is expected that the aero-gel will have an extremely small thermal conductivity. (a) Explain why the apparatus of...

A process has the following block diagram representation (a) Will the process exhibit overshoot for a step change in u? Explain/demonstrate why r why not. (b) What will be the approximate maximum...

A spacecraft is describing an elliptic orbit of minimum altitude hA = 1500 mi and maximum altitude hB = 6000 mi above the surface of the earth. Determine the speed of the spacecraft at A. ha 3900 mi B

When a jet strikes an inclined plate, it breaks into two jets of equal velocity V but unequal fluxes αQ at (2) and (1 α) Q at (3), as shown. Find α, assuming that the tangential...

If 8 kg of oxygen in a closed tank at 200C and 300 kPa is heated until the pressure rises to 400 kPa, calculate (a) The new temperature; (b) The total heat transfer; and (c) The change in entropy.

A 68-kg man whose average body temperature is 39C drinks 1 L of cold water at 3C in an effort to cool down. Taking the average specific heat of the human body to be 3.6 kJ/kg C, determine the drop...

Instruments in airplane A indicate that with respect to the air the plane is headed 30? north of east with an airspeed of 480 km/h. At the same time radar on ship B indicates that the relative...

A bar in tension has a circular cross section and includes a conical portion of length l , as Shown, the task is to find the spring rate of the entire bar. Equation (44) is useful for the outer...

What is the percentage of error involved in treating carbon dioxide at 3 MPa and 10C as an ideal gas?

For laminar free convection from a heated vertical surface, the local convection coefficient may be expressed as hx = Cx-1/4, where h, is the coefficient at a distance x from the leading edge of the...

Consider a circular cylinder (oriented with its axis perpendicular to the flow) and a symmetric diamond-wedge airfoil with a half-angle of 5 at zero angle of attack; both bodies are in the same Mach...

There is a percentage of fuel in a fuelair mixture called the lower flammable limit (LFL), below which the mixture cannot be ignited. There is also an upper flammable limit (UFL), a percentage of...

A cylindrical piece of 8640 steel is to be austenitized and quenched in moderately agitated oil. If the hardness at the surface of the piece must be at least 49 HRC, what is the maximum allowable...

A 0.55-ft3 well-insulated rigid can initially contains refrigerant-134a at 90 psia and 30°F. Now a crack develops in the can, and the refrigerant starts to leak out slowly, Assuming the...

Data for the titration of 100.00 mL of a weak acid by NaOH are given below. Find the end point by preparing a Gran plot, using the last 10% of the volume prior to Ve. 048262810094016 | 7 7 7 8 8 9 9...

A tube has another tube shrunk over it. The specifications are Inner Member Outer Member ID OD 1.000 +0.002 in 2.000 +0.0004 in 1.999 0.0004 in 3.000t 0.004 in

A plane wall has constant properties, no internal heat generation, and is initially at a uniform temperature Ti. Suddenly, the surface at x = L is heated by a fluid at T having a convection...

A 2-kg block A slides in a vertical frictionless slot and is connected to a moving support B by means of a spring AB of constant k = 117N/m. Knowing that the displacement of the support is = m sin...

For the beam and loading shown, (a) Draw the shear and bending-moment diagrams, (b) Determine the maximum absolute values of the shear and bending moment. 8 kips 4 kips 10 kips DY -45 t-06R 1.8 ft'...

Consider the conveyor system described in Problem 7.24, but under conditions for which the conveyor is not moving and the air is quiescent. Radiation effects and interactions between boundary layers...

Determine the angle ? between the tails of the two vectors. n = 9 m. 120 60 45

When measuring small pressure differences with a manometer, often one arm of the manometer is inclined to improve the accuracy of reading. (The pressure difference is still proportional to the...

Temperature distribution in a hot-wire anemometer, a hot-wire anemometer is essentially a fine wire, usually made of platinum, which is heated electrically and exposed to a flowing fluid. Its...

A heated process is used to heat a semiconductor wafer operates with first-order dynamics, that is, the where K has units [?C/Kw] and ? has units [minutes]. The process is at steady state when an...

A compressor brings R-134a from 150 kPa, -10oC to 1200 kPa, 50oC. It is water cooled with a heat loss estimated as 40 kW and the shaft work input is measured to be 150 kW. How much is the mass flow...

The slab tongs shown are used to lift a 960-lb block of granite. Determine the forces exerted at D and F on tong BDF. -15.75 in 15.75 SA In 10 in

In a game of pool, ball A is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls B and C, which are at rest and aligned as shown. Knowing that after the collision the three...

Friction factor for flow past an infinite cylinder, the flow past a long cylinder is very different from the flow past a sphere, and the method introduced in S4.2 can-not be used to describe this...

A solution is prepared by dissolving 0.5150 g of a solute (MW = 110.1) in 100.0 g of an organic solvent (MW = 94.10). The solution is observed to have a freezing point 0.41C below that of the pure...

A stirred tank with volume V t? (L) is charged with V 1 (L) of a liquid. B. The space above the liquid (volume V g = V t ? V 1 ) is filled with a pure gas, A, at an initial pressure P 0 (atm). The...

A flat-bottomed hole 6 mm in diameter is bored to a depth of 24 mm in a diffuse, gray material having an emissivity of 0.8 and a uniform temperature of 1000 K. (a) Determine the radiant power leaving...

A process is described by the transfer function Find the range of controller settings that yield stable closed-loop systems for (a) A proportional-only controller. (b) A proportional-integral...

A solar collector design consists of several parallel tubes each enclosed concentrically in an outer tube which is transparent to solar radiation. The tubes are thin walled with diameter of the inner...

When 5.00 mL of 0.1032 M NaOH were added to 0.1123 g of alanine (FM 89.093) in 100.0 mL of 0.10 M KNO3, the measured pH was 9.57. Use activity coefficients to find pK2 for alanine. Consider the ionic...

Air is compressed steadily by a compressor from 100 kPa and 17C to 700 kPa at a rate of 5 kg/min. Determine the minimum power input required if the process is (a) Adiabatic and (b) Isothermal. Assume...

A 20-kg aluminum block initially at 200C is brought into contact with a 20-kg block of iron at 100C in an insulated enclosure. Determine the final equilibrium temperature and the total entropy change...

A 0.238 6-g sample contained only NaCl and KBr. It was dissolved in water and required 48.40 mL of 0.048 37 M AgNO3 for complete titration of both halides [giving AgCl(s) and AgBr(s)]. Calculate the...

Superheated refrigerant R-134a at 20C, 0.5 MPa is cooled in a piston/cylinder arrangement at constant temperature to a final two-phase state with quality of 50%. The refrigerant mass is 5 kg, and...

An air-cooled steam condenser is operated with air in cross flow over a square, in-line array of 400 tubes (N L = N T = 20), with an outside tube diameter of 20 mm and longitudinal and transverse...

A 1.2-lb ball A is moving with a velocity vA when it is struck by a 2.4-lb ball B which has a velocity vB of magnitude vB = 18 ft/s. Knowing that the velocity of ball B is zero after impact and that...

Engine oil flows at a rate of 0.5 kg/s through a 2.5 cm ID tube. The oil enters 25?C while the tube wall is at 100?C.(a) If the tube is 4 m long. Determine whether the flow is fully developed.(b)...

A pressure cylinder has a diameter of 150 mm and has a 6-mm wall thickness. What pressure can this vessel carry if the maximum shear stress is not to exceed 25 Mpa?

Hot water at 85C flows through a thin-walled copper tube of 30 mm diameter. The tube is enclosed by an eccentric cylindrical shell that is maintained at 35C and has a diameter of 120 mm. The...

Consider the clad fuel element of Problem 3.77. (a) Using appropriate relations from Tables C. 1 and C. 2 , obtain an expression for the temperature distribution T(x) in the fuel element. For k f =...

Consider the configuration of Example 3.8, where uniform volumetric heating within a stainless steel tube is induced by an electric current and heat is transferred by convection to air flowing...

The diagonal members in the center panels of the truss shown are very slender and can act only in tension; such members are known as counters. Determine the forces in the counters which are acting...

An airfoil is in a free stream where p = 0.61atm, px, = 0.819 kg/m3, and Vx = 300 m/s. At a point on the airfoil surface, the pressure is 0.5atm; assuming isentropic flow calculates the velocity at...

The differential equation model for a particular chemical process has been found by testing to be as follows: where ? 1 and ? 2 are constant parameters and u(t) is the input function of time. What...

An opaque surface, 2 m by 2 m, is maintained at 400 K and is simultaneously exposed to solar irradiation with G = 1200 W/m2 . The surface is diffuse and its spectral absorptivity is = 0, 0.8, 0, and...

Carbon dioxide, CO2, enters an adiabatic compressor at 100 kPa, 300 K, and exits at 1000 kPa, 520 K. Find the compressor efficiency and the entropy generation for the process.

Knowing that α =25°, determine the tension (a) In cable AC, (b) In rope BC. 5 kN

A thin semicircular plate has a radius a and a mass m. Determine the mass moment of inertia of the plate with respect to (a) The centroidal al axis BB′, (b) The centroidal axis CC′ that...

A process output is given by the following expression Because we know that the Laplace transform of the output can express the product of the process transfer function and the Laplace transform of...

Engine oil flows at a rate of I kg/s through a 5-mm-diameter straight tube. The oil has an inlet temperature of 45C and it is desired to heat the oil to a mean temperature of 80C at the exit of the...

Effect of flow rate on exit temperature from a heat exchanger (a) Repeat parts (b) And (c) Of Problem 14A.2 for oil flow rates of 200, 400, 800, 1600, and 3200 lb m /hr. (b) Calculate the total heat...

Two couples act on the frame. Determine the resultant couple moment. Compute the result by resolving each force into x and y components and (a) Finding the moment of each couple (Eq. 4-13) and (b)...

The uniform ladder rests along the wall of a building at A and on the roof at B. If the ladder has a weight W and the surfaces at A and B are assumed smooth, determine the angle for equilibrium....

A 4-ft-long beam is subjected to a variety of loadings. (a) Replace each loading with an equivalent force-couple system at end A of the beam. (b) Which of the loadings are equivalent? 11

The uniform thin 5-lb disk spins at a constant rate w2 = 6 rad/s about an axis held by a housing attached to a horizontal rod that rotates at the constant rate w1 = 3 rad/s. Determine the couple...

Numerical demonstration of the von Karman momentum balance (a) Evaluate the integrals in Eq. 4.4-13 numerically for the Blasius velocity profile given in Fig. 4.4-3. (b) Use the results of (a) to...

Calculate cp, cv, e, and h for (a) The stagnation point conditions given in Prob. 7.1 (b) Air at standard sea level conditions (If you do not remember what standard sea level conditions are, find...

A plate (k = 10W/m K) is stiffened by a series of longitudinal ribs having a rectangular cross section with length L = 8 mm and width w = 4 mm. The base of the plate is maintained at a uniform...

A speech signal with bandwidth B = 10 kHz is sampled at F2 = 20 kHz. Suppose that the signals is corrupted by four sinusoids with frequencies F1 = 10,000 Hz, F3 = 7778 Hz, F2 = 8889 Hz, F4 = 6667 Hz...

A toy skyrocket consists of a solid conical top of density t, a hollow cylinder of density c, and a stick having a circular cross section of density s. Determine the length of the stick, x, so that...

A hot fluid at 35C is to be transported through a tube horizontally positioned in quiescent air at 25C. Which of the tube shapes, each of equal cross-sectional area, would you use in order to...

The square gate AB is held in the position shown by hinges along its top edge A and by a shear pin at B. For a depth of water d = 3.5 m, determine the force exerted on the gate by the shear pin. 1.8...

A solution of diphenyl (MW = 154.2) in benzene is formed by mixing 56.0 g diphenyl with 550.0 mL of benzene. Estimate the effective vapor pressure of the solution at 30C and the melting and boiling...

A 20,000-liter storage tank was taken out of service to repair and reattach a feed line damaged in a collision with a tanker. The tank was drained and then opened several days later for a welder to...

A 1-mm-thick square (100 mm x 100 mm) sheet of polymer is suspended from a precision scale in a chamber characterized by a temperature and relative humidity of T = 300 K and cp = 0, respectively....

Carbon dioxide gas enters an adiabatic expander at 8 bar and 400oC and discharges at 1 bar. If the turbine efficiency is 0.75 what is the discharge temperature and what is the work output per mole of...

A 100 kmol/h stream that is 97 mole% carbon tetrachloride (CCl4) and 3% carbon disulfide (CS2) is to be recovered from the bottom of a distillation column. The feed to the column is 16 mole% CS2 and...

The figure shows a conical compression helical coil spring where R1 and R2 are the initial and final coil radii, respectively, d is the diameter of the wire, and Na is the total number of active...

The smooth rod of mass M rests inside the glass. Determine the reactions on the rod. Given: M = 20 gm a = 75 mm b = 200 mm = 40 deg g = 9.81m/s2 b.

An irregularly shaped machine component is held in the position shown by three clamps. Knowing that 940 FA = N, determine the magnitudes of the forces FB and FC exerted by the other two clamps. Fo Fc

Applying high-emissivity paints to radiating surfaces is a common technique used to enhance heat transfer by radiation. (a) For large parallel plates, determine the radiation heat flux across the gap...

A combination of two drugs (hydrochlorothiazide and oxybutynin) is commonly used to regulate blood pressure in elderly patients. These two drugs mainly affect two physiological variables of the...

Consider a two-stage cascade refrigeration system operating between the pressure limits of 0.8 and 0.14 MPa. Each stage operates on the ideal vapor-compression refrigeration cycle with...

The pressure loading on the plate is described by the function p = {-240/(x + 1) + 340} Pa. Determine the magnitude of the resultant force and coordinates of the point where the line of action of the...

For the beam and loading shown, determine (a) The magnitude and location of the resultant of the distributed load, (b) The reactions at the beam supports. G00 N/m 240 N/m A. 4.2 m 2 m

The driveshaft of a buildings air-handling fan is turned at 300 RPM by a belt running on a 0.3 m diameter pulley,. The net force applied by the belt on the pulley is 2000 N. Determine the torque...

Joints of high quality can be formed by friction welding. Consider the friction welding of two 4O-mm-diameter Inconel rods. The bottom rod is stationary, while the top rod is forced into a...

A tower, packed with Montz B1-200 metal structured packing, is to be designed to absorb SO2 from air by scrubbing with water. The entering gas, at an SO2-free flow rate of 6.90 lbmollh-ft2 of bed...

A house that is losing heat at a rate of 80,000 kJ/h when the outside temperature drops to 15C is to be heated by electric resistance heaters. If the house is to be maintained at 22C at all times,...

The frame ACD is supported by ball-and-socket joints at A and D and by a cable that passes through a ring at B and is attached to hooks at G and H. Knowing that the frame supports at point C a load...

A slender 6-kg rod can rotate in a vertical plane about a pivot at B. A spring of constant k = 600 N/m and an un-stretched length of 225 mm is attached to the rod as shown. Knowing that the rod is...

A colored substance (B) is to be removed from a mineral oil by adsorption with clay particles at 25oC. The original oil has a color index of 200 units/l00 kg oil, while the decolorized oil must have...

It has been proposed that oxygen be separated from nitrogen by absorbing and desorbing air in water. Pressures from 101.3 to 10,130 kPa and temperatures between 0 and 100C are to be used. (a) Devise...

A process is described by the transfer function which includes actuator and measurement dynamics. The process engineering group has the option of redesigning the process to eliminate the right-half...

Supply the missing data in the table below. Molar Analytical Concentration, Cr Lactic Iodic Butanoic Hypochlorous 0.280 7.00 Nitrous Hydrogen .120 _ 0.200 , 0.640 0.765 5.00 0.644_ __ _0.105 0.413...

Replace the distributed loading by an equivalent resultant force and specify where its line of action intersects member AB, measured from A. Given: w1 = 200N/m w2 = 100N/m w3 = 200N/m a = 5 m b = 6 m...

Circuit boards are mounted to interior vertical surfaces of a rectangular duct of height H = 400 mm and length L = 800 mm. Although the boards are cooled by forced convection heat transfer to air...

One g-mole of pure liquid sulfuric acid at temperature T0 (C) is mixed with r g-moles of liquid water, also at temperature T0 (C), in an adiabatic container. The final solution temperature is Ts (C)....

A cylindrical specimen of cold-worked steel has a Brinell hardness of 250. (a) Estimate its ductility in percent elongation. (b) If the specimen remained cylindrical during deformation and its...