Th e bulk modulus of elasticity of ethyl alcohol is 1.06 10 9 Pa. For water, it is 2.15 10 9 Pa. Which of these liquids is easier to compress? a. Ethyl alcohol b. Water

A design team is developing a prototype CO 2 cartridge for a manufacturer of rubber raft s. The is cartridge will allow a user to quickly inflate a raft . A typical raft is shown in the sketch....

A liquid flows between parallel boundaries as shown above. The velocity distribution near the lower wall is given in the following table: a. If the viscosity of the liquid is 10 3 Ns/m 2 , what is...

A 1ft diameter cylindrical tank is filled with water to a depth of 2ft. A cylinder of wood 5 in. in diameter and 6.0 in. long is set afloat on the water. The weight of the wood cylinder is 3.5 lbf....

The plane rectangular gate can pivot about the support at B. For the conditions given, is it stable or unstable? Neglect the weight of the gate. Justify your answer with calculations. Water 8 m Gate...

A tank is fitted with a manometer on the side, as shown. The liquid in the bottom of the tank and in the manometer has a specific gravity (SG) of 3.0. Th e depth of this bottom liquid is 20 cm. A 15...

A field test is used to measure the density of crude oil recovered during a fracking* operation. The crude oil recovered is mixed with brine. The oil and brine mixture are placed in an *Hydraulic...

As shown, an air space above a long tube is pressurized to 50 kPa vacuum. Water (20C) from a reservoir fills the tube to a height h. If the pressure in the air space is changed to 25 kPa vacuum, will...

The gage pressure throughout the horizontal 90 pipe bend is 300 kPa. If the pipe diameter is 1.5 m and the water (at 10C) flow rate is 10 m 3 /s, what x-component of force must be applied to the bend...

Water at 15C flows through a nozzle that contracts from a diameter of 15 cm to 2 cm. Th e exit speed is v 2 = 10 m/s, and atmospheric pressure prevails at the exit of the jet. Calculate the pressure...

The hypothetical liquid in the tube shown in the figure has zero viscosity and a specific weight of 10 kN/m 3 . If p B p A is equal to 8 kPa, one can conclude that the liquid in the tube is being...

Water ( = 62.4 lbm/ft 3 ) flows from the large orifice at the bottom of the tank as shown. Assume that the flow is irrotational. Point B is at zero elevation, and point A is at 1 ft elevation. If V A...

This closed tank, which is 4 ft in diameter, is filled with water ( = 62.4 lbm/ft 3 ) and is spun around its vertical axis at a rate of 10 rad/s. An open piezometer is connected to the tank as shown...

Suppose you are designing an object to fall through seawater with a terminal velocity of exactly 1 m/s. What variables will have the most influence on the terminal velocity? List these variables and...

How much power is required to move a spherical-shaped submarine of diameter 1.5 m through seawater at a speed of 10 knots? Assume the submarine is fully submerged.

For this siphon the elevations at A, B, C, and D are 30 m, 32 m, 27 m, and 26 m, respectively. The head loss between the inlet and point B is three-quarters of the velocity head, and the head loss in...

For this system, point B is 10 m above the bottom of the upper reservoir. The head loss from A to B is 1.1V 2 /2g, and the pipe area is 8 10 4 m 2 . Assume a constant discharge of 8 10 4 m 3 /s....

In this system, d = 15 cm, D = 35 cm, and the head loss from the venturi meter to the end of the pipe is given by h L = 1.5 V 2 /2g, where V is the velocity in the pipe. Neglecting all other head...

Refer to Figure 7.14. Assume that the head loss in the pipes is given by h L = 0.02(L/D)(V 2 /2g), where V is the mean velocity in the pipe, D is the pipe diameter, and L is the pipe length. The...

Water flows from reservoir A to reservoir B in a desert retirement community. The water temperature in the system is 100F, the pipe diameter D is 2 ft, and the pipe length L is 160 ft. If H = 35 ft,...

Water flows in the pipe shown, and the manometer deflects 120 cm. What is f for the pipe if V = 3 m/s? D = 5 cm Elevation = 10 m 4 m Elevation = 11 m V = 3 m/s S= 2.5

Air flows in a 3-cm smooth tube at a rate of 0.015 m 3 /s. If T = 20C and p = 110 kPa absolute, what is the pressure drop per meter of length of tube?

Estimate the rate of flow of water through the venturi meter shown. Air (y = 0.20 lbf/ft') 48 in 30 Diameter = 4 in Diameter = 12 in

Water flows over a rectangular weir that is 3 m wide and 35 cm high. If the head on the weir is 15 cm, what is the discharge in cubic meters per second?

Water at 50F is piped from a reservoir to a channel like that shown. The pipe from the reservoir to the channel is a 4 in. steel pipe 100 ft in total length. There are two 90 bends, r/D = 1, in the...

The state of 1(lb m ) of steam is changed from saturated vapor at 20 (psia) to superheated vapor at 50 (psia) and 1000(F). What are the enthalpy and entropy changes of the steam? What would the...

Assuming the validity of Eq. (6.89), derive Edmisters formula for estimation of the acentric factor: where T n / T c , T n is the normal boiling point, and P c is in (atm). 3 log P. - 1 1-0

Consider a chloroform(1)/tetrahydrofuran(2) mixture with x 1 = 0.90, initially at 76C and 120 kPa. Describe the evolution of phases and phase compositions as the temperature is gradually reduced to...

Consider a chloroform(1)/tetrahydrofuran(2) mixture with x 1 = 0.10, initially at 80C and 120 kPa. Describe the evolution of phases and phase compositions as the temperature is gradually reduced to...

Consider a chloroform(1)/tetrahydrofuran(2) mixture with x 1 = 0.20, initially at 70C and 120 kPa. Describe the evolution of phases and phase compositions as the temperature is gradually increased to...

Sketch a figure similar to Fig. 3.4a for the forward-biased junction of an npn transistor. Describe the resulting carrier motion. Fig. 3.4a + Majority carriers E + B Depletion region VEE (a)

Sketch a figure similar to Fig. 3.4b for the reverse-biased junction of an npn transistor. Describe the resulting carrier motion. Fig. 3.4 Minority carriers B+ Depletion region Vcc (b)

Sketch a figure similar to Fig. 3.5 for the majority- and minority-carrier flow of an NPN transistor. Describe the resulting carrier motion. Fig. 3.5 Majority carriers P + Minority carriers E B....

Calculate the frequency of a Wien bridge oscillator circuit (as in Fig. 14.23) when R = 10 k and C = 2400 pF. Fig. 14.23 R3 +Vcc Output sinusoidal Op-amp signal R2 R4 -VEE f,= 2n VR, C, R2C2 FIG....

A single Px 1 data point is available for a binary system at 35C. Estimate from the data: (a) The corresponding value of y 1 . (b) The total pressure at 35C for an equimolar liquid mixture. (c)...

For the 2N5457 JFET of Fig. 6.20, what is the power rating at a typical operating temperature of 45C using the 5.0 mW/C derating factor? Fig. 6.20 2NS457 MMBF5457 ABKLITE MANIMIM RATINCS Sel Dr Ss...

Determine V o1 and V o2 for the networks of Fig. 2.159 . +12 Vo Si (a) 4.7 GaAs Vo -10 Vo FIG. 2.159 Problem 9. Ge Si K (b) 1.2 kQ ww + Vo 3.3

A proposed embankment fill requires 8000 m 3 of compacted soil. The void ratio of the compacted fill is specified as 0.7. Four borrow pits are available as described in the following table, which...

Consider the Supermarine Spitfire shown in Figure 5.19. The first version of the Spitfire was the Mk I, which first flew in 1936. Its maximum velocity is 362 mi/h at an altitude of 18,500 ft. Its...

A motor control system for a computer disk drive must reduce the effect of disturbances and parameter variations, as well as reduce the steady-state error. We want to have no steady-state error for...

Consider a unity feedback system with loop transfer function Determine the value of the gain K such that the percent overshoot to a unit step is minimized. L(s) = Ge(s)G(s) = K(s + 2) (s + 5) (s + s...

Determine the angle between the two cables. 2 m 3 m F = 40 N |A Z F = 70 N 3 m 4m -3 m- 2m B

Determine the magnitude of the projected component of force F along the pole. F = (-20i + 50j - 10k} lb A 6 ft 1-281- X 3 ft Prob. 2-105

Determine the magnitude and coordinate direction angles , . of the resultant force acting on the pole. Set x = 4m, y = 2m. -3 m F=250 N = 300 N 4 m F = 350 N m

The spur gear is subjected to the two forces. Express each force as a Cartesian vector. F= 180 lb 60 60 24. 7 135 25 F = 50 lb

Two forces F 1 and F 2 act on the screw eye. If the resultant force F R has a magnitude of 150 lb and the coordinate direction angles are shown. determine the angle y, the magnitude of F 2, and its...

If a vertical force of 2.5 kN is applied to the hook at A, determine the tension in each of the three cables for equilibrium. Set d = 1 m. X B 3 m 1.5 m A (P Pasazanmar F = 2.5 KN 3 m 1 m D 0.75 m y

If cable AD is tightened by a turnbuckle and develops a tension of 1300 lb, determine the tension developed in cables AB and AC, and the force developed along the z-axis of the Antema tower AE. 30 ft...

Determine the length of the connecting rod AB by first formulating a position vector from A to B and then determining its magnitude. 30 B 300 mm 150 mm Prob. 2-86 X

Given that G = 3a + cosa z 2 a z , find the component of G along a x at point Q(3,4,6).

Three 10-lb balls and one 15-lb ball are suspended from the pulley-and-cable system. If the pulleys are frictionless and the centers of all of them lie in the same horizontal plane, determine the sag...

Determine the force in each of the three cables needed to support the tractor tread assembly, which has a mass of 8 Mg. 1.25 m B X 1.25 m N 3 m D 2 m 1m

If the tension developed in either cable AB or AC cannot exceed 1000 lb, determine the maximum tension that can be developed in cable AD when it is tightened by the turnbuckle. Also, what is the...

Determine the force in each of the three cables needed to lift the machine that has a weight of 10 kN. x 1 m 3 m 2 m 10 KN A B C 1.25 m 1.25 m

If the cords suspend the two buckets in the equilibrium position, determine the weight of bucket B. Bucket A has a weight of 60 lb. E 40 A 20 20 B D 65

The lamp has a weight of 15 lb and is supported by the six cords connected together as shown. Determine the tension in each cord and the angle for equilibrium. Cord BC is horizontal. E 30 B A C 45 E...

Each cord can sustain a maximum tension of 20 lb. Determine the largest weight of the lamp that can be supported. Also, determine of cord DC for equilibrium. E 30 B 60 A C 750 D

The spring has a stiffness of k = 800 N/m and an unstretched length of 200 mm. Determine the force in cables BC and BD when the spring is held in the position shown. k = 800 N/m B www 500 mm -400 mm...

Determine the stretch in each spring for equilibrium of the 2-kg block. The springs are shown in the equilibrium position. 3 m Ans. -3 m- wwwwww KAC = 20 N/m D -4m- wwwwwww KAD = 40 N/m B KAB = 30 N/m

Given that find: (a) |P + Q R|, (b) P Q X R, (c) Q X P R, (d) (P X Q) (Q X R), (e) (P X Q) X (Q X R), (f) cos PR , (g) sin PQ . P = 2a, ay-2a Q = 4a, + 3a, + 2a R = -a + a, + 2a

Determine the reactions at the roller support A, the joint D, and the tension in cable BC for ball-and-socket the plate. 0.4 m X 0.6 m 0.6 m 0.6 m B 450 N

The rod is supported by smooth journal bearings at A, B, and C and is subjected to the two forces. Determine the reactions at these supports. X A N 0.6 m B 0.6 m A600N 400 N D 0.6 m 0.4 m -y

Determine the components of reaction at the fixed support A. Neglect the thickness of the beam. 3m A 60 200 N 200 N 200 N m- tim- 30 400 N

Two couples act on the beam. Determine the magnitude of F so that the resultant couple moment is 450 Ib ft, counterclockwise. Where on the beam does the resultant couple moment act? 200 lb 1.5 ft -2...

If F = 125 lb, determine the resultant couple moment. 200 lb 1.5 ft 200 lb -2 ft- 1.25 ft 130 130 F

The road exerts a torque of M A = 400 N m and M B = 200 N m on the brushes of the road sweeper. Determine the magnitude of the couple forces that are developed by the road on the rear wheels of the...

Determine the magnitude of the forces F and - F, so that the resultant couple moment is 400 N m clockwise. 250 N 250 N 1 m -40% 600 N 600 N

The man tries to open the valve by applying the couple of forces of F = 75 N to the wheel. Determine the couple of moment produced. F -150 mm-150 mm- F

The bevel gear is subjected to the force F which is caused from contact with another gear. Determine the moment of this force about the y axis of the gear shaft. F = {20i + 8j - 15k} N 30 mm 40 mm X

The board is used to hold the end of the cross lug wrench in the position shown when the man applies a force of F = 100 N. Determine the magnitude of the moment produced by this force about the...

If the moment of the force F about the edge CA of the tetrahedron has a magnitude of M = 200 lb ft and is directed from C toward A, determine the magnitude of F. 8 ft 10 ft Sft a fon 6 ft N 4 ft A...

The force of F = 80 lb acts along the edge DB of the tetrahedron. Determine the magnitude of the moment of this force about the edge CA. X 8 ft 5 ft 10 ft X611 6 ft 4 ft Z D 15 ft F B y

Determine the moment produced by force F about the diagonal AF of the rectangular block. Express the result as a Cartesian vector. X C 3 m Z A 0 D F F = {-6i+ 3j + 10k} N B 1.5 m G 3 m

The board is used to hold the end of the cross lug wrench in the position shown. If a torque of 30 N m about the x-axis is required to tighten the nut, determine the required magnitude of the force...

Replace the distributed loading with an equivalent resultant force, and specify its location on the beam measured from point A. W 100 lb/ft 370 lb/ft w = (x + 3x + 100) lb/ft 15 ft- B -X

Replace the loading on the beam by an equivalent resultant force and specify its location, measured from point A. + \FR = F ; (+MRA = ; Fn = 3 + 1.5 + 1.5 = 6 kN | 6(d) 3 (1) + 1.5 (1.5) + 1.5 (4) d...

Determine the resultant moment of both the 100-lb force and the triangular distributed load about point O. y 12 ft- 20 lb/ft 100 lb 60 1 ft X

Replace the loading system acting on the post by an equivalent resultant force and couple moment at point P. 60 lb 3 4 P O 30 lb 1 ft 3 ft 2 ft 40 lb X

Replace the force and couple-moment system by an equivalent resultant force and specify its coordinate point of application (x, 0) on the x axis. F = 20 lb 3 ft 4 ft -5 ft F = 10 lb y M = 100 lb-ft O...

Replace the force system acting on the pipe assembly by a resultant force and couple moment at point O. Express the results in Cartesian vector form. X 2 ft N F = {-20i-10j + 25k}lb O F = {-10i + 25j...

Replace the force system acting on the truss by a resultant force and couple moment at point C. 6 ft 200 lb PC 150 lb -2 ft-2 ft2 ft- A O 100 lb -2 ft- B 5 500 lb

Replace the loading acting on the frame by an equivalent resultant force and couple moment acting at point A. B -3 ft 80 lb. +3 -3 ft- 75 lb 60 lb + 3 ft -3 ft- 2 ft 1 40 lb A 4 ft

Replace the force system by an equivalent resultant force and couple moment at point O. Set F = 15 lb. -2 in.- 6 in. 20 lb 40 30 1.5 in. X

Replace the force system by an equivalent resultant force and couple moment at point O. Set F = 20 lb. y +2 in. 6 in. 20 lb 40 30 1.5 in. X 4 3 F

The two ends of the spanner wrench fit loosely into the smooth slots of the bolt head. Determine the required force P on the handle in order to develop a torque of M = 50 N m on the bolt. Also, what...

The two ends of the spanner wrench fit loosely into the smooth slots of the bolt head. Determine the torque M on the bolt and the resultant force on the pin at B when a force of P = 80 N is applied...

Determine the force P needed to suspend the 100-lb weight. Each pulley has a weight of 10 lb. Also, what are the cord reactions at A and B? A 2 in. C 2 in. 2 in. P

If each cord can support a maximum tension of 500 lb determine the largest weight that can be supported by the pulley system. Each pulley has a weight of 10 lb. A B: 2 in. C 2 in. 2 in. P

Determine the components of reaction at C. 250 N B D -1.5 m-1.5 m-1.5 m-1.5 m- Prob. F6-22 2 m 2m E

Identify the zero-force members in the truss. 1.5 m E A -2 m- 3 kN D B -2m- 'C

Determine the force in each member of the truss. State if the members are in tension or compression. A -4 ft- B D -4 ft- 450 lb 4 ft

Determine the magnitude and coordinate direction angles of the resultant couple moment. M = 40 lb-ft 20 15 X Z M = 30 lb-ft 130 y

Two couples act on the frame. If d = 6 ft, determine the resultant couple moment by (a) Summing the moments of the two couples (b) Resolving each force into x and y components and then summing the...

Two couples act on the frame. If d = 4 ft, determine the resultant couple moment by (a) Summing the moments of the two couples (b) Resolving each force into x and y components and then summing the...

Two couples act on the frame. If the resultant couple moment is to be zero, determine the distance d between the 100-lb couple forces. 100 lb -3 ft-+d- 30 30% 100 Ib 150 Ib -3 ft- B T 4 ft 150 Ib

Three couple moments act on the pipe assembly. Determine the magnitude of the resultant couple moment if M 2 = 50 N and M 3 = 35 N m. M3 0 120 120 120 (M M= 80 Nm

If the valve can be opened with a couple moment of 25 N m within, determine the required magnitude of each couple forces that must be applied to the wheel. F -150 mm-150 mm. F

The cord passing over the two small pegs A and B on the board is subjected to a tension of 10 lb. Determine the minimum tension P and the orientation of the cord passing over pegs C and D, so that...

The crossbar wrench is used to remove a lug nut from the automobile wheel. The mechanic applies a couple to the wrench such that his hands are a constant distance apart. Is it necessary that a = b in...

The A-frame is being hoisted into an upright position by the vertical force of F = 80 lb. Determine the moment of this force about the y' axis passing through points A and B when the frame is in the...