(a) Obtain the voltage V o in the circuit of Fig. 2.127(a) . (b) Determine the voltage Vʹ o measured when a voltmeter with 6-kΩ internal resistance is connected as shown in...

The circuit in Fig. 2.134 is to control the speed of a motor such that the motor draws currents 5 A, 3 A, and 1 A when the switch is at high, medium, and low positions, respectively. The motor can be...

Apply nodal analysis to solve for V x in the circuit of Fig. 3.56 . V 302 0.05V, 2 A 60 2

Find V o and the power dissipated in all the resistors in the circuit of Fig. 3.60 . 12 6 Vo 60 V (+ 12 24 V (1+

Using nodal analysis, find v o in the circuit of Fig. 3.63 . 12.5 A 50 V Vo 100 V (+

For the circuit in Fig. 3.69 , find v 1 , v 2 , and v 3 using nodal analysis. 240 V (+- 201 V3 20 V2 1 40 40 10

Write the mesh-current equations for the circuit in Fig. 3.117. 10 10 10 V 1) 10 15 V (+ 10 10 V 10 10 (+ 10 4 10 10 15 V (+ 10 +) 10 V

By inspection, write the mesh-current equations for the circuit in Fig. 3.116 . 20 www 40 V 15 30 b) 20 +, 14 20 V 20 10

Obtain v a in the circuit of Fig. 3.54 . 120 V +- 60 V 120 k2 120 k2 Vo 30 k2

For the circuit in Fig. 5.93 , find v o . 25 k2 100 k2 40 k2 20 k2 20 k2 10 k2 Vo +, 2 V 0+

Determine the Thevenin equivalent circuit, shown in Fig. 4.101 , as seen by the 7-ohm resistor. Then calculate the current flowing through the 7-ohm resistor. 13 60 7 30 240 V +,

Use superposition to find V o in the circuit of Fig. 4.86 . 10 2 2 V. V. 102 ) 4 A +.

The voltage waveform in Fig. 6.46 is applied across a 55-μF capacitor. Draw the current waveform through it. v (t) VA 10 12 t (ms) 6 8 10 2 4 -10

A 50-F capacitor has energy w(t) = 10 cos 2 377t J. Determine the current through the capacitor.

Find the load voltage v L in the circuit of Fig. 5.98 . 100 k2 250 kO 20 k2 +. 2 k2 5.6 V

Find the Norton equivalent at terminals a-b of the circuit in Fig. 4.119 . Vo- +. 10 20 2 V.

A fish looking straight up toward the smooth surface of a pond receives a cone of rays and sees a circle of light filled with the images of sky and birds and whatever else is up there. This right...

Convert 0.296 cm 3 /s to m 3 /s.

Convert 0.105 m 3 /s to L/min.

Convert 23.5 cm 3 /s to m 3 /s.

Convert 84.3 gal/min to m 3 /s.

Convert 3.58 10 -3 m 3 /s to L/min.

Convert 5.26 10 -6 m 3 /s to L/min.

Convert 459 gal/min to ft 3 /s.

Convert 20 gal/min to ft 3 /s.

Convert 2.50 gal/min to ft 3 /s.

Convert 125 ft 3 /s to gal/min.

Convert 0.060 ft 3 /s to gal/min.

Convert 7.50 ft 3 /s to gal/min.

Convert 0.008 ft 3 /s to gal/min.

Figure 9.29 shows a system in which methyl alcohol at 77°F flows outside the three tubes while ethyl alcohol at 0°F flows inside the tubes. Compute the volume flow rate of each fluid required...

Water at 90°F flows in the space between 6-in Schedule 40 steel pipe and a square duct with inside dimensions of 10.0 in. The shape of the duct is similar to that shown in Fig. 9.10. Compute the...

Figure 9.14 shows a heat exchanger in which each of two DN 150 Schedule 40 pipes carries 450 L/min of water. The pipes are inside a rectangular duct whose inside dimensions are 200 mm by 400 mm....

Determine the energy loss for a gradual contraction from a 4-in Schedule 80 steel pipe to a 1-in Schedule 80 pipe for a flow rate of 250 gal/min. The cone angle for the contraction is 76.

A piping system for supplying heavy fuel oil at 25°C is arranged as shown in Fig. 10.35. The bottom leg of the tee is normally capped, but the cap can be removed to clean the pipe. Compute the...

The inlet and the outlet shown in Fig. 10.36 (a) are to be connected with a 50 mm OD Ã 2.0 mm wall copper tube to carry 750 L/min of propyl alcohol at 25°C. Evaluate the two schemes shown...

Water at 10C flows from a large reservoir at the rate of 1.5 10 -2 m 3 /s through the system shown in Fig. 11.13. Calculate the pressure at B.

Analyze the system shown in Fig. 11.11 with kerosene at 20°C as the working fluid. Use PIPE-FLO ® software to determine the pressure at point B that results in a flow rate of 800 L/min....

Repeat Problem 11.43, except consider that there will be the following elements added to the system: A fully open gate value near the water main A fully open butterfly valve near the green (but...

Repeat Problem 11.35, but consider the valve to be fully open. Repeat Problem For the system shown in Fig. 11.30, compute the volume flow rate of ethyl alcohol at 77°F that would occur if the...

What force makes it possible for a car to move along a curved road? A straight, flat road?

What is the acceleration of the Moon as it moves in its circular orbit around the Earth? TABLE 5.1 Solar System Data: Properties of Several Objects in the Solar System, Including the Planets and Two...

The track near the top of your favorite roller coaster has a circular shape with a diameter of 20 m. When you are at the top, as in Figure 5.11, you feel as if your weight is only one-third your true...

An RC circuit consists of a series connection of a 120-V source, a switch, a 34-M resistor, and a 15-F capacitor. The circuit is used in estimating the speed of a horse running a 4-km racetrack. The...

Find v(t) for t > 0 in the circuit of Fig. 8.81 . t = 0 1H ll 4.5 A 6u(t) A 5 10

Obtain v(t) and i(t) for t > 0 in the circuit of Fig. 8.84 . 2 5H i(t) 10u(t) A 4 24 V v(t) 2 200 mF

It is desired to operate a pump at 1750 rpm by driving it with a four-pole electric motor. For each of the following conditions, compute the specific speed using Eq. (1317). Then, recommend whether...

A person who is farsighted has her near point at 100 cm and her far point is where it should normally be. Determine the prescription for a contact lens that will fix the problem. Locate her new far...

An optometrist finds that a farsighted person has a near point at 125 cm. What power will be required for contact lenses if they are effectively to move that point inward to a more workable distance...

Suppose you have a concave spherical mirror with a focal length of 10 cm. At what distance must an object be placed if its image is to be erect and one and a half times as large? What is the radius...

A man whose face is 25 cm away looks into the bowl of a soup-spoon and sees his image reflected with a magnification of -0.064. Determine the radius of curvature of the spoon.

A woman is standing 600 cm in front of a large flat vertical mirror. She sees the image of a tree 1200 cm from her face. Where is the actual tree located? Describe the image in detail.

A blade of grass standing 10.0 mm tall is 150 mm in front of a thin positive lens having a 100 mm focal length; 250 mm behind that first lens is a thin negative lens with a focal length of -75.0 mm....

A candle flame is 18.0 cm in front of a thin positive lens. Its image appears three times farther away from the lens than if the same candle were on a very distant mountain. Determine the lenss focal...

A meniscus concave glass (n l = 1.5) thin lens (see Fig. 5.12) has radii of curvature of +20.0 cm and +10.0 cm. If an object is placed 20.0 cm in front of the lens, show that the image distance will...

In Section 5.4, we showed that the radius of a geosynchronous orbit about the Earth is 4.2 107 m, compared with the radius of the Earth, which is 6.4 106 m. By what factor is the force of gravity...

Identify the static 1-hazards in the following circuit. State the condition under which each hazard can occur. Draw a timing diagram (similar to Figure 1-10(b)) that shows the sequence of events when...

A sequential circuit has one input (X) and two outputs (Z 1 and Z 2 ). An output Z 1 = 1 occurs every time the input sequence 010 is completed provided that the sequence 100 has never occurred. An...

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

(a) Write a Verilog module for a LUT with four inputs and three outputs. The 3-bit output should be a binary number equal to the number of 1s in the LUT input. (b) Write a Verilog module for a...

Design the correction circuit for a BCD adder that computes Zdigit 0 and C for S 0 . This correction circuit adds 0110 to S 0 if S 0 > 9. This is the same as adding 0AA0 to S 0 , where A = 1 if S 0 >...

(a) Implement the function F 1 = A'BC + B'C + ABC using an FPGA with programmable logic blocks consisting of 4-to-1 multiplexers. Assume inputs and their complements are available. (b) Implement the...

A description of a 74194 4-bit bidirectional shift register follows. The CLRb input is asynchronous and active low and overrides all the other control inputs. All other state changes occur following...

The objective of this problem is to use Verilog to describe and simulate a multiplier for signed binary numbers using Booths algorithm. Negative numbers should be represented by their 2s complement....

Obtain the Laplace transform of f (t) in Fig. 15.28 . f(t) A 15 1 2 3 4 t

An association has 15 voting members. Executive meetings of this association can be held only if more than half (i.e., at least eight) of the members are present (i.e., eight is the minimum quorum...

The magnitude plot in Fig. 14.76 represents the transfer function of a preamplifier. Find H(s). H (dB) 20 20 dB/decade 2,122 20 dB/decade 50 500

Design a problem to help other students better understand how to determine the Bode magnitude and phase plots of a given transfer function in terms of jÏ. Sketch the Bode magnitude and phase...

Find the transfer function H(s) = V o V i of the circuit shown in Fig. 14.71 . V. ll V, (+)

A radio receiver has an input resistance of 300 . When it is connected directly to an antenna system with a characteristic impedance of 75 , an impedance mismatch occurs. By inserting an...

For the circuit in Fig. 13.82 , determine the impedance seen by the source. j2 N -j1 80/0 V (+ J5 j5 Q j2 Q ell ell

Using Fig. 10.87 , design a problem to help other students better understand the superposition theorem. R2 jXL ll V2 -jXc R1 V, (+1

For the channel designed in Problem 14.32, compute the normal discharge that is expected for a slope of 0.12 percent if the channel is made from painted steel. In Problem Compute the flow area and...

Figure 14.21 represents the approximate shape of a natural stream channel with levees built on either side. The channel is earth with grass cover. Use n = 0.04. If the average slope is 0.000 15,...

Determine the normal discharge for an aluminum rain spout with the shape shown in Fig. 14.19 that runs at the depth of 3.50 in. Use n = 0.013. The spout falls 4 in over a length of 60 ft. 6 in 3.50...

Water is flowing in a formed, unfinished concrete rectangular channel 3.5 m wide. For a depth of 2.0 m, calculate the normal discharge and the Froude number of the flow. The channel slope is 0.1...

Compute the hydraulic radius for the channel shown in Fig. 14.20 if the water depth is 2.50 m. 25 m 0.6 m 0.5 m 1.0 m 2.

Find v(t) for t > 0 in the circuit in Fig. 16.50 . t= 0 1H v = 4 F 10 5 6u(t) A 4.5 A

A series RLC circuit is described by Find the response when L = 0.5H, R = 4Ω, and C = 0.2 F. Let i(0) = 7.5 A and [di(0)/dt] = 0. di(t) , i(t) i(t) = 15 + R- dt dt

A ball of mass 1.5 kg is tied to a string of length 6.0 m as shown in Figure P6.50. The ball is initially hanging vertically and is given an initial velocity of 5.0 m/s in the horizontal direction....

A crate of mass 24 kg is pushed up a friction less ramp by a person as shown in Figure P6.5. Calculate the work done by the person in pushing the crate a distance of 20 m as measured along the ramp....

A rock is thrown horizontally with a speed of 20 m/s from a vertical cliff of height 25 m. (a) How long does it take the rock to reach the horizontal ground below? (b) How far will it land from the...

Using phasors, determine the amplitude and phase of the waveform given by Draw an appropriate diagram. In other words, knowing that Ï(t) = A cos (Ït + α) find A and...

Imagine that we strike two tuning forks, one with a frequency of 340 Hz, the other 342 Hz. What will we hear?

The speed of propagation of a surface wave in a liquid of depth much greater than λ is given by where g = acceleration of gravity, λ = wavelength, Ï = density, Y =...

Show that the group velocity can be written as n + w(dn/dw)

An ionized gas or plasma is a dispersive medium for EM waves. Given that the dispersion equation is where Ï p is the constant plasma frequency, determine expressions for both the phase and group...

The first* experiment directly measuring the bandwidth of a laser (in this case a continuous-wave Pb 0.88 Sn 0.12 Te diode laser) was carried out in 1969. The laser, operating at 0 = 10 600 nm, was...

A 2-in-diameter stream of water having a velocity of 40 ft/s strikes the edge of a flat plate such that half the stream is deflected downward as shown in Fig. 16.16. Calculate the force on the plate...

Calculate the force exerted on a stationary curved vane that deflects a 1-in-diameter stream of water through a 90 angle. The volume flow rate is 150 gal/min.

Compute the hydraulic radius for the channel shown in Fig. 14.20 if the water depth is 0.50 m. 25 m 0.6 m 0.5 m 1.0 m 2.

A fan is rated to deliver 4760 cfm of air at a static pressure of 0.75 in H 2 O. Express the flow rate in m 3 /s and the pressure in Pa.

What is the approximate location of the center of mass of the boomerang in Figure Q7.3? Figure Q7.3 ? y

Two billiard balls undergo an elastic collision as shown in Figure P7.27. Ball 1 is initially traveling along x with a speed of 10 m/s, and ball 2 is at rest. After the collision, ball 1 moves away...

Two particles of mass m 1 = 1.5 kg and m 2 = 3.5 kg undergo a one-dimensional head-on collision as shown in Figure P7.21. Their initial velocities along x are v 1i = 12 m/s and v 2i = -7.5 m/s. The...

For a given amount of energy to be used for its propulsion, a spacecraft must have much larger tanks than an airplane. Why?

A hand grenade is thrown with speed v 0 = 30 m/s, as sketched in Figure P7.51, just prior to exploding. It breaks into two pieces of equal mass after the explosion. One piece has a final velocity of...

A railroad car (m = 3000 kg) is coasting along a level track with an initial speed of 25 m/s. A load of coal is then dropped into the car as sketched in Figure 7.19.? (a) Treat the railroad car plus...

A thin uniform layer of water (n = 1.333) 25.0 nm thick exists on top of a sheet of clear plastic (n = 1.59). At what incident angle will the water strongly reflect blue light (λ 0 = 460...

Sunlight incident on a screen containing two long narrow slits 0.20 mm apart casts a pattern on a white sheet of paper 2.0 m beyond. What is the distance separating the violet ( 0 = 400 nm) in the...