Refer to Fig. 4.37. 0.76 m 0.60 m 1,00 m Gate Oil (sg = 0.80) 20

Refer to Fig. 4.39. 0.80 m 05 m Semicircular hatch 1.50-m diameter Turpentine 70 sg - 0.88

Figure 4.42 shows a gasoline tank filled into the filler pipe. The gasoline has a specific gravity of 0.67. Calculate the total force on each flat end of the tank and determine the location of the...

For the orange-drink tank shown in Fig. 4.32, compute the magnitude and location of the total force on the vertical back wall. The tank is 3.0 m long. 30 Orange drink (sg - 1.10) 3.0 m 4.6 m 2.4-m...

An exceedingly narrow beam of white light is incident at 60.0 on a sheet of glass 10.0 cm thick in air. The index of refraction for red light is 1.505 and for violet light its 1.545. Determine the...

A beam of light in air strikes the surface of a smooth piece of plastic having an index of refraction of 1.55 at an angle with the normal of 22.0. The incident light has component E-field amplitudes...

Unpolarized light is incident in air on the flat surface of a sheet of glass of index 1.60 at an angle of 30.0 to the normal. Determine both amplitude coefficients of reflection. What is the...

Show that tan p = n t /n i and calculate the polarization angle for external incidence on a plate of crown glass (n g = 1.52) in air.

Derive the expressions for r ¥ and r || given by Eqs. (4.70) and (4.71). cos 6; (n sin 0;)'/ cos 0; + (n sin 0;)'/2 (4.70) ni cos 0; (ni sin e,)'/2 n cos e; + (ni sin0;}'/2 and (4.71)

A large block of diamond is covered, on top, by a layer of water. A narrow beam of light travels upward in the solid and strikes the solidliquid interface. Determine the minimum incident angle that...

Figure 5.19 shows a pump partially submerged in oil (sg = 0.90) and supported by springs. If the total weight of the pump is 14.6 lb and the submerged volume is 40 in 3 , calculate the supporting...

A buoy is to support a cone-shaped instrument package, as shown in Fig. 5.22. The buoy is made from a uniform material having a specific weight of 8.00 lb/ft 3 . At least 1.50 ft of the buoy must be...

For the raft shown in Fig. 5.27, how much of the drums will be submerged when only the platform is being supported? Refer to Problems 5.31 and 5.32 for data. Raft 36 in- 21-in diameter

A container for an emergency beacon is a rectangular shape 30.0 in wide, 40.0 in long, and 22.0 in high. Its center of gravity is 10.50 in above its base. The container weighs 250 lb. Will the box be...

If the barge in Problem 5.57 is loaded with 240 000 lb of loose coal having an average density of 45 lb/ft 3 , how much of the barge would be below the water? Is it stable? In Problem A barge is 60...

Convert a volume flow rate of 3.0 gal/min to m 3 /s.

(a) Suppose a tire rolls without slipping on a horizontal road. Explain the role friction plays in this motion. What two surfaces are involved in this frictional force? Is it static friction or...

You are a newly graduated astronaut preparing for your first trip into space. Plans call for your spacecraft to reach a velocity of 500 m/s after 2.4 min. If your mass is 75 kg, what force will be...

A ball is thrown upward with a speed of 35 m/s from the edge of a cliff of height h - 15 m (similar to Fig. P3.22). (a) What is the speed of the ball when it passes by the cliff on its way down to...

A book of mass 3.0 kg sits at rest on a horizontal table. What is the magnitude of the normal force exerted by the table on the book?

Calculate the terminal speed for a baseball. A baseballs diameter is approximately d = 0.070 m, and its mass is m = 0.14 kg. Express your answer in meters per second and miles per hour.

A 35-m-wide river flows in a straight line (the x direction) with a speed of 0.25 m/s. A boat is rowed such that it travels directly across the river (along y). If the boat takes exactly 4 minutes to...

A bullet is fired from a rifle with speed v 0 at an angle θ with respect to the horizontal axis (Fig. P4.32) from a cliff that is a height h above the ground below. (a) Calculate the...

The three forces shown in Figure P4.2 act on a particle. If the particle is in transnational equilibrium, find F 3 (the magnitude of force 3) and the angle θ 3 . Figure P4.2 (50 N 60 30...

Compute the Reynolds number for the flow of 325 L/min of water at 10C in a standard hydraulic steel tube, 50 mm OD 1.5 mm wall thickness. Is the flow laminar or turbulent?

Water at 75C is flowing in a standard hydraulic copper tube, 15 mm OD 1.2 mm wall, at a rate of 12.9 L/min. Calculate the pressure difference between two points 45 m apart if the tube is horizontal.

For the pump described in Problem 8.46, if the pressure at the pump inlet is -2.36 psig, compute the power delivered by the pump to the water.

Reliant Energy (the electric company in Houston, Texas) charges customers as follows: Monthly charge $6 First 250 kWh @ $0.02/kWh All additional kWh @ $0.07/kWh If a customer uses 2,436 kWh in one...

Calculate I o in the circuit of Fig. 2.119. 700 2 400 2 200 2 100 V 1.7 k2 800 2 400 2 +1)

For the circuits in Fig. 2.108 , obtain the equivalent resistance at terminals a-b. 20 2 www 30 2 30 2 be

For the ladder network in Fig. 2.104 , find I and R eq . 82 62 15 V Rea

Find R eq and i o in the circuit of Fig. 2.102. 12 2 o 2.50 80 35 V(+ 15 2 20 2 TRea

Using Fig. 3.50 , design a problem to help other students better understand nodal analysis. R2 12 V

For the circuit in Fig. 3.70 , find v 1 and v 2 using nodal analysis. 21. 20 V2 ww 10 30 V

The feedback resistor of a five-input averaging summing amplifier is 40 k. What are the values of R 1 , R 2 , R 3 , R 4 , and R 5 ?

For the transistor model in Fig. 4.118 , obtain the Thevenin equivalent at terminals a-b. 3 k2 21 V (+ 201. 2 k2

Apply Thevenins theorem to find V o in the circuit of Fig. 4.105 . Vo 10 16 2 2.5 A + 50 V

A 100-mH inductor is connected in parallel with a 2-k resistor. The current through the inductor is i(t) = 35e 400t mA. (a) Find the voltage vL across the inductor. (b) Find the voltage v R across...

Design a problem to help other students better understand how inductors work. The current through a 12-mH inductor is i(t) = 30te -2t . A, t 0. Determine: (a) The voltage across the inductor, (b)...

If v(0) = 0, find v(t), i 1 (t), and i 2 (t) in the circuit of Fig. 6.63 . Is (mA). 30 5 t -30 6 F is 4F

Design a circuit that provides a relationship between output voltage v o and input voltage v s such that v o = 12v s 10. Two op amps, a 6-V battery, and several resistors are available.

For the flow of 12.9 L/min of water at 75°C in a plastic pipe, 16 mm OD Ã 1.5 mm wall, compute the expected maximum velocity of flow from Eq. (94). + 1.43 V) Umax = v(1 %3D

Compute points on the velocity profile from the pipe wall to the centerline of a 3/4-in Type K copper tube if the volume flow rate of water at 60F is 0.50 gal/min. Use increments of 0.05 in and...

Determine the pressure drop across a 90 standard elbow in a DN 65 Schedule 40 steel pipe if water at 15C is flowing at the rate of 750 L/min.

Compute the resulting pressure after a real diffuser in which the energy loss due to the enlargement is considered for the data presented in Problem 10.12. The enlargement is sudden. In Problem...

A bicycle wheel of radius 0.30 m is spinning at a rate of 60 revolutions per minute. (a) What is the centripetal acceleration of a point on the edge of the wheel? (b) What is the period of the wheels...

A car of mass 1700 kg is traveling without slipping on a flat, curved road with a radius of curvature of 35 m. If the cars speed is 12 m/s, what is the frictional force between the road and the tires?

If the masses of the objects in Problem 35 are both increased by a factor of 5, by what factor does the gravitational force change? Do not use a calculator to solve this problem! Data From Problem 35...

Find the ratio of your weight on the Earth to your weight on the surface of the Sun. WEarth W Sun

Using Fig. 7.85 , design a problem to help other students better understand source-free RC circuits. For the circuit shown in Fig. 7.85 , find i(t), t > 0. t= 0 R, R2 R3 +1

A roller-coaster track is designed so that the car travels upside down on a certain portion of the track as shown in Figure P5.20. What is the minimum speed the roller coaster can have without...

For the circuit in Fig. 7.91 , find i o for t > 0. t= 0 4 H 24 V(+ 4 8

Determine v(t) for t > 0 in the circuit of Fig. 8.87 . 250 mH 3 20u(t) V (+ 4 20u(t) A v(t) 500 mF

A series RLC circuit has R = 80 , L = 240 mH, and C = 5 mF. If the input voltage is v(t) = 115 cos 2t, find the current flowing through the circuit.

Using Fig. 9.40 , design a problem to help other students better understand phasor relationships for circuit elements. Two elements are connected in series as shown in Fig. 9.40 . If i = 12 cos (2t -...

Determine the admittance Y for the circuit in Fig. 9.44 . 10 J30 WW 10 -10 J10 rell

Using Fig. 9.45 , design a problem to help other students better understand admittance. Find i(t) and v(t) in each of the circuits of Fig. 9.45. a. b. (t) R2 R1 Vs(t) (+ all

Find current I o in the circuit shown in Fig. 9.50 . 40 2 5/0 A -j40 2 20 2 j40 Q relll

Find Z T and V o in the circuit in Fig. 9.71 . Let the value of the inductance equal j20 Ω. Z7 V. 10 -j20 2 5/30 A 20 2 elle

A coin of diameter D C is 300 cm in front of a parallel wall on which is hung a circular flat mirror of diameter D M . A person stands 900 cm from the wall. Show that D M = 3/4 D C is the...

Consider the case of two positive thin lenses, L 1 and L 2 , separated by 5 cm. Their diameters are 6 and 4 cm, respectively, and their focal lengths are 1 = 9 cm and 2 = 3 cm. If a diaphragm with...

A classic 35-mm film camera has a single thin lens having a 50.0-mm focal length. A woman 1.7 m tall stands 10.0 m in front of the camera. (a) Show that the lens-film distance must be 50.3 mm. (b)...

A rock of mass m is tied to a string of length L and swung in a horizontal circle of radius r. The string can withstand a maximum tension T max before it breaks. (a) What is the maximum speed v max...

Find the gravitational force of the Sun on the Earth.

A positive meniscus lens with an index of refraction of 2.4 is immersed in a medium of index 1.9. The lens has an axial thickness of 9.6 mm and radii of curvature of 50.0 mm and 100 mm. Compute the...

Write out the truth table for the following equation: F = (A B) + A' (B' C)

(a) Find all the static hazards in the following circuit. For each hazard, specify the values of the input variables and which variable is changing when the hazard occurs. For one of the hazards,...

In the following Verilog code, A, B, C, and D are 0 at time 10 ns. If D changes to 1 at 20 ns, specify the times at which A, B, and C will change and the values they will take. (a) always @(D) begin...

A sequential circuit has one input (X) and two outputs (D and B). X represents a 4-bit binary number N, which is input least significant bit first. D represents a 4-bit binary number equal to N 2,...

In the following circuit, the XOR gate has a delay in the range of 2 to 16 ns. The D flip-flop has a propagation delay from clock to Q in the range 12 to 24 ns. The setup time is 8 ns, and the hold...

Develop a Verilog model for a 16-bit carry look-ahead adder utilizing the 4-bit adder from Figure 4-10 as a module.

(a) If gate delays are 5ns, what is the delay of the fastest 4-bit ripple carry adder? (b) If gate delays are 5ns, what is the delay of the fastest 4-bit adder? What kind of adder will it be?

(a) Construct an SM chart equivalent to the following state table. Test only one variable in each decision box. Try to minimize the number of decision boxes. (b) Write a Verilog description of the...

(a) In which applications should a designer use a CPLD rather than an FPGA? (b) In which applications should a designer use an MPGA rather than an FPGA? (c) In which applications should a designer...

Calculate the Laplace transform of the infinite train of unit impulses in Fig. 15.31 . f(t) A 8 t 4

The block diagram for an elevator controller for a building with two floors is shown in the following diagram. The inputs FB 1 and FB 2 are floor buttons in the elevator. The inputs CALL 1 and CALL 2...

Two coils are mutually coupled, with L 1 = 50 mH, L 2 = 120 mH, and k = 0.5. Calculate the maximum possible equivalent inductance if: (a) The two coils are connected in series. (b) The coils are...

Two coils connected in series-aiding fashion have a total inductance of 500 mH. When connected in a series-opposing configuration, the coils have a total inductance of 300 mH. If the inductance of...

Using the superposition principle, find i x in the circuit of Fig. 10.88 . +) 20 cos(2t 60) V 10 cos(2t + 10)A( 4 H -|00 all

Find v o for the circuit in Fig. 10.86 , assuming that i s (t) = 2 sin (2t) + 3 cos (4t) A. i,(t) 10 5 HE Vo rell

A wooden flume is being built to temporarily carry 5000 L/min of water until a permanent drain can be installed. The flume is rectangular, with a 205-mm bottom width and a maximum depth of 250 mm....

A drainage structure for an industrial park has a trapezoidal cross-section similar to that shown in Fig. 14.2 (c). The bottom width is 3.50 ft and the sides are inclined at an angle of 60 from the...

A rectangular channel has a bottom width of 2.75 m. Compute the hydraulic radius when the fluid depth is 0.50 m.

Compute the hydraulic radius for a circular drain pipe running half full if its inside diameter is 300 mm.

For the circuit in Fig. 16.73 , find v(t) for t > 0. Assume that i(0) = 2 A. i(t) 10 HE v(t) 2 H 2i(t)

Find the output voltage v o (t) in the circuit of Fig. 16.64 . t= 0 10 1H3 10 mF 1.5 A () 52 Vo

The switch in the circuit of Fig. 16.61 is moved from position a to b (a make before break switch) at t = 0. Determine i(t) for t > 0. 0.02 F 14 +) 15 V bo i(t) 2 2 H ell t = 0 5 A (+1

Determine v for t > 0 in the circuit in Fig. 16.60 . 250 mH ele 20u(t) A 4 20u(t) V 500 mF +1

Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. The current record for this race is about 9 min 30 s. If...

A skier of mass 100 kg starts from rest at the top of the ski slope of height 100 m shown in Figure P6.71. If the total work done by friction is -3.0 ?? 10 4 J, what is the skier???s speed when he...

You use an elevator to travel from the first floor (h = 0) to the fourth floor of a building (h = 12 m). If you start from rest and you end up at rest on the fourth floor, what is the work done by...

A mass and spring are arranged on a horizontal, friction less table as shown in Figure P6.58. The spring constant is k = 500 N/m, and the mass is 4.5 kg. The block is pushed against the spring so...

Consider again the roller coaster in Figure P6.32, but now assume the roller coaster starts with a speed of 12 m/s at point A. Find the speed of the roller coaster when it reaches locations B and C....

An archer is able to fire an arrow (mass 0.020 kg) at a speed of 250 m/s. If a baseball (mass 0.14 kg) is given the same kinetic energy, what is its speed?

A tomato of mass 0.22 kg is dropped from a tall bridge. If the tomato has a speed of 12 m/s just before it hits the ground, what is the kinetic energy of the tomato?

A sphere of mass 35 kg is attached to one end of a rope as shown in Figure P6.1. It is found that the rope does an amount of work W = 550 J in pulling the sphere upward through a distance 1.5 m. Find...

Figure 16.23 is a sketch of a turbine in which the incoming stream of water at 15°C has a diameter of 7.50 mm and is moving with a velocity of 25 m/s. Compute the force on one blade of the...

A bend in a tube causes the flow to turn through an angle of 135. The pressure ahead of the bend is 275 kPa. If the standard hydraulic copper tube, 100 mm OD 3.5 mm wall, carries 0.12 m 3 /s of...

Figure 16.13 shows a free stream of water at 180°F being deflected by a stationary vane through a 130 angle. The entering stream has a velocity of 22.0 ft/s. The cross-sectional area of the...

A sharp-edged orifice is placed in a 10-in-diameter pipe carrying ammonia. If the volume flow rate is 25 gal/min, calculate the deflection of a water manometer (a) If the orifice diameter is 1.0 in...