method LazyArrayTestHarness() { var arr := new LazyArray(3, 4); assert arr.Get(0) == arr.Get(1) == 4; arr.Update(0, 9); arr.Update(2, 1); assert arr.Get(0) == 9 && arr.Get(1) == 4 && arr.Get(2) == 1; }
The second assertion in the test harness of Q1 is true. O True
O False

Answer:

  100 μs

Explanation:

The Thévenin equivalent source impedance is the parallel impedance of the two resistors, so 50 ohms. The R·C product is then ...

  (50 ohms)(2 microfarads) = 100 microseconds

When a 6-bit D/A converter is given a binary input of 100100, which is the decimal equivalent of 51, it will output a voltage circuit of 1.8 volts.

When the binary input is 100100, a 6-bit D/A converter will generate an output voltage of 1.8 volts. This binary input consists of six binary digits, each of which denotes a 0 or a 1. Each digit to the right after the first is one less significant, making the leftmost digit the most important bit. In this instance, the leftmost 1 represents a value of 32, followed by the next 1 representing 16, the subsequent 0 representing 8, the subsequent 0 representing 4, the subsequent 1 representing 2, and the last 1 representing 1. These values add up to 51, which is the decimal representation of the binary number 100100. Consequently, the decimal number of 1.8 volts corresponds to the output voltage.

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Answer:

George  Floyd (BLACK  LIFES  MATTER)

C O V I D - 19

Quarantine  

no sports

wearing a mask

and a whole lot of other stuff

Explanation:

Answer:

Visual connectivity refers to the tangible aspects of a space; extent to which a place can be viewed from other places. It is believed that the design properties of a spatial layout of an atrium leaves unobstructed views horizontally and vertically.

Explanation:

Answer:

95049=(2x1000)+(5x1000)+(0x100)+4x10)+(9x1

Explanation:

hope it helps

Answer: B, plumb bob

Explanation:

A plumb bob's main job was to establish what is true (ie vertical and perpendicular to a surface,) as well as the secondary task of marking these points.

Compasses are mainly used to draw circles, protractors are used to measure angles, and rulers are used to measuring length.

The frequency range for a single TE10 mode of operation for an air-filled rectangular waveguide with dimensions of 0.9x0.4 inches (X-band) is 6.48 GHz to 11.04 GHz and for dimensions of 0.10x0.05 inches (W-band) is 71.56 GHz to 122.4 GHz.

The TE10 mode is the dominant mode of operation in a rectangular waveguide, and its cut-off frequency can be approximated by the following equation:

fc = \(\frac{c}{2} \sqrt{a^2 + b^2}\)

Where fc is the cut-off frequency, c is the speed of light, a is the width of the waveguide, and b is the height of the waveguide.

For the X-band waveguide with dimensions of 0.9x0.4 inches, the cut-off frequency of the TE10 mode is approximately 6.48 GHz. The highest frequency that can propagate in the waveguide is approximately twice the cut-off frequency, or 11.04 GHz.

For the W-band waveguide with dimensions of 0.10x0.05 inches, the cut-off frequency of the TE10 mode is approximately 71.56 GHz. The highest frequency that can propagate in the waveguide is approximately twice the cut-off frequency, or 122.4 GHz.

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Shear stain is typically stated in radians; however, it can alternatively be expressed in degree. Strain is a unit less quantity.

Because the strain lacks the enzyme or enzymes required to generate substance A, Neurospora cannot thrive on minimum medium. Neurospora of the wild kind can also grow in simple media. Inorganic salts and carbon sources make up the bare minimum media. Some enzymes in the pathway that are not functional prevent neurospora from growing, which affects their growth. Because Neurospora is haploid and expresses all alleles, it is very helpful in genetic investigations. The entire genome of the neurospora has seven sequenced chromosomes. There is always a chance that cyber concerns will be abused by hackers. Users should avoid using the same password on many websites and should first keep their passwords private.

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Answer:

To join and reinforce intersecting structural members

Explanation:

The purpose of a gusset or gusset plate used in the construction and repair of aircraft structures is to join and reinforce intersecting structural members

Answer:

a) 0.39795 kJ/K

b) 79.589.37 kJ

Explanation:

m = Mass of air = 2 kg

Temperature = 200 K

P₁ = Initial pressure = 300 kPa

P₂ = Final pressure = 600 kPa

R = mass-specific gas constant for air = 287.058 J/kgK

a) For isentropic process

∴ Entropy is generated in the process is 0.39795 kJ/K

b)

∴ Amount of lost work is 79.589.37 kJ

Slope 1 is  the slope of the line when a change of state is occurring.

The slopes of the slanted strains represent the unique warmth potential. The sharper the slope, the smaller the unique warmth potential of the substance is. This is extensive due to the fact the sharper the slope, the greater fast the temperature rises while the substance is heated. A slope of one approach it rises simply as rapid because it is going forward. A terrible slope approach that variables are negatively related; that is, while x increases, y decreases, and while x decreases, y increases. If the graph of a line rises from left to proper, the slope is positive. If the graph of the road falls from left to proper the slope is terrible.

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Yes, this is a random sample. By selecting cameras from the production line output at random times on three different days, the engineer is ensuring that the sample will be random.

What is engineer?

Engineering is a profession that involves the application of scientific principles for the purpose of designing, building, and maintaining structures, machines, and other products. It is also a field of study that involves the analysis and use of mathematics, physics, and other sciences to solve problems. Engineering requires knowledge of mathematics, science, and engineering fundamentals, as well as problem-solving and critical thinking skills. Engineers must also be able to communicate their ideas and results effectively, both in written and oral forms. Engineering involves the design and construction of structures, machines, and systems, as well as the development of new materials, processes, and products.

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Answer:

Hello your question is incomplete attached below is the complete question

answer :

a) 95.80°C

b) 8.23 MW

Explanation:

Convection heat transfer coefficient = 860 W/m^2 . k

a) Calculate for the temp of sheet metal when it leaves the oil bath

first step : find the Biot number

Bi = hLc / K  ------- ( 1 )

where : h = 860 W/m^2 , Lc = 0.0025 m ,  K = 60.5 W/m°C

Input values into equation 1 above

Bi = 0.036 which is < 1  ( hence lumped parameter analysis can be applied )

next : find the time constant

t ( time constant ) = h / P*Cp *Lc  --------- ( 2 )

where : p = 7854 kg/m^3 , Lc = 0.0025 m , h = 860 W/m^2, Cp = 434 J/kg°C

Input values into equation 2 above

t ( time constant ) = 0.10092 s^-1

Determine the elapsed time

T = L / V = 9/20 = 0.45 min

∴   temp of sheet metal when it leaves the oil bath

= (T(t) - 45 ) / (820 - 45)  = e^-(0.10092 * 27 )

T∞ =  45°C

Ti = 820°C

hence : T(t) = 95.80°C

b) Calculate the required rate of heat removal form the oil

Q = mCp ( Ti - T(t) ) ------------ ( 3 )

m = ( 7854 *2 * 0.005 * 20 ) = 26.173 kg/s

Cp = 434 J/kg°C

Ti =  820°C

T(t) = 95.80°C

Input values into equation 3 above

Q = 8.23 MW

Note that the isentropic efficiency of the compressor is 0.68 and the entropy generation rate in the compressor is 0.119 kW/K.

We can use the following thermodynamic relations to solve this problem:

h2s = h1 + (s2s - s1) (isentropic process)

h2 = h1 + (q - w) (actual process)

ηisentropic = (h2s - h1) / (h2 - h1) = (T2s - T1) / (T2 - T1)

where h is the enthalpy, s is the entropy, q is the heat added, w is the work done, and ηisentropic is the isentropic efficiency.

To calculate the entropy generation rate (Sgen) in the compressor, we can use the following relation:

Sgen = q/Tc - q/Th

where Tc is the average surface temperature of the compressor and Th is the temperature of the compressed fluid at the compressor outlet.

Given:

P1 = 140 kPa

T1 = -10°C = 263.15 K

P2 = 1200 kPa

T2 = 50°C = 323.15 K

W = 150 kW

Qloss = 40 kW

Tc = 20°C = 293.15 K

Using the refrigerant tables, we can determine the enthalpies and entropies at the compressor inlet and outlet:

At the compressor inlet:

h1 = 187.67 kJ/kg

s1 = 0.9396 kJ/kg·K

At the compressor outlet:

h2 = 307.23 kJ/kg

s2 = 1.1058 kJ/kg·K

To calculate h2s, we assume an isentropic process, so s2s = s1 and P2s = P1. Using the refrigerant tables, we find:

h2s = 259.62 kJ/kg

a) The isentropic efficiency can be calculated as:

ηisentropic = (h2s - h1) / (h2 - h1) = (259.62 - 187.67) / (307.23 - 187.67) = 0.661 or 66.1%

b) The heat added to the compressor can be calculated as:

q = W + Qloss = 150 + 40 = 190 kW

The temperature at the compressor outlet can be determined from the refrigerant tables at P2 = 1200 kPa:

h2f = 210.13 kJ/kg

The final temperature can be calculated as:

T2f = T1 + (h2f - h1) / cp = 59.43°C

The entropy generation rate can be calculated as:

Sgen = q/Tc - q/Th = q(1/Tc - 1/Th) = 190(1/293.15 - 1/332.58) = 1.57 kW/K

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Answer:

Technician A

Explanation:

Technician A is correct. Technician B is wrong, as different drive vehicles (FWD, RWD, AWD, 4WD) each require a certain rotation for optimal tire wear.

The horizontal and vertical components of the force that the water exerts on the bulge are 642.936 lb and 141.145 lb

The radius of the bulge is given  as 1.2 ft

Length of the bulge is 1 ft

The projected area of the bulge is 2RL

= 2 x 1.2 x 1

= 2.4 ft²

We have to find the horizontal components of the force

Hc = 3.1 + 1.2 = 4.3 ft

fH = 62.3 x 4.3 x 2.4

= 642.936 lb

Hence the horizontal components of the force is 642.936 lb

How to find the vertical component of force

Fv = 62.4 x (π x 1.2²/2) x 1

= 62.4 x 2.26285 x 1

= 141.145 lb

Hence the vertical component of the force is 141.145 lb

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Answer:

To be honest I don't really know there's so much great things to be in your future just to many to choose from, but you have to work for want you want in life, but if I had to choose it would be a writer or baker.

Answer: the degree of superheat is 95.91 °C

Explanation:

Given that;

Pressure P = 10 bar

Specific enthalpy h = 3000 kJ/kg

Now we take a look at the saturated steam table at Pressure ⇒ 10 bar

we have; T_sat = 179.88 °C

Also, From superheated steam table, at Pressure P = 10 bar

and Specific enthalpy h = 3000 kJ/kg;

we get; T = 275.79 °C

Hence, Degree of superheat = T - T_sat

= 275.79 °C - 179.88 °C

= 95.91 °C

Therefore, the degree of superheat is 95.91 °C

It is certain that Electrician B is correct because he says that it would be legal if there was a neutral carried to the last switch in the circuit. The Option B.

The three-way switch circuit is a common type of electrical wiring used to control lights or other fixtures from two or more locations. It allows the user to turn the light on or off from either switch position.

According to the National Electrical Code, the wire is required at each switch location for lighting circuits, but in a three-way switch circuit, only one switch location is required to have a neutral wire to comply with the NEC.

Missing options:

a. Only electrician A is correct

b. Only electrician B is correct

c. Both electrician A and B is correct

d. Neither electrician A nor B is correct

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i) Truth table listing all combinations of the input signals F, G, D and R:Given: Switch for the farmer provides logic signal F, which is high if the farmer is on the east bank and low if he is on the west bank. Similar logic signals (G for the goose, D for the dog, and R for the rye) are high if the corresponding object is in the east bank and low if it is on the west bank.

The logic signal A (Alarm), which is the output, is high any time the rye or the goose is in danger of being eaten.F  G  D  R  A0  0  0  0  00  0  0  1  10  0  1  0  10  1  0  0  10  1  1  0  10  1  1  1  1Now, the desired value of the output, A, for each row in the truth table is shown below: 0000 0001 0010 0100 1000 1111ii) SOP (Sum of Products) and POS (Product of Sums) expressions from the truth table:The sum of products (SOP) is A = F' G' D' R + F' G' D R' + F G' D' R' + F G' D R' + F G D' R'The product of sums (POS) is A = (F + G + D' + R')(F + G' + D + R')(F' + G + D + R')(F + G' + D' + R')(F + G + D' + R')Therefore, the SOP expression from the truth table is A = F' G' D' R + F' G' D R' + F G' D' R' + F G' D R' + F G D' R' and the POS expression from the truth table is A = (F + G + D' + R')(F + G' + D + R')(F' + G + D + R')(F + G' + D' + R')(F + G + D' + R').Explanation:This problem is related to the logic circuit that should be designed to replicate the conditions of a riddle that involves a farmer who has a sack of rye, a goose, and a mischievous dog. When the farmer comes across a river, he must cross it from east to west. A boat is available, but it only has space for the farmer and one of his possessions. If the farmer is not present, the goose will eat the rye or the dog will eat the goose. A circuit is required to replicate this riddle's conditions, with four switches provided for the farmer, the rye, the goose, and the dog.

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1. A suspension bridge is supported by large main cables, from which smaller cables suspend the deck, while a cable-stayed bridge has towers that support the deck directly with cables attached to the towers. 2. The purpose of the extreme event I limit state is to assess the structural integrity of a system or infrastructure under extreme loading conditions, such as earthquakes, hurricanes, or other severe environmental events, ensuring they can withstand and safely endure these extreme forces. 3. The position of the Design Tandem that induces a maximum moment in simple-span bridges is typically located at the quarter span from the support, where the bending moment is the highest due to the concentrated load. 4. Three factors that affect live load distribution in bridge systems are Load configuration, Bridge stiffness and Bridge geometry.

These cables are supported by tall towers or pylons, and the load is primarily transferred to the anchorages. In contrast, a cable-stayed bridge has cables that are connected directly from the towers or pylons to the bridge deck.

The cables are arranged in a fan-like pattern and support the load by transferring it directly to the towers or pylons.

The purpose behind this limit state is to ensure the safety, functionality, and durability of the structure even under extreme conditions. By accounting for these extreme events, engineers can design structures that have the necessary strength, resilience, and robustness to withstand such scenarios, protecting both human life and property.

This configuration leads to the highest bending moment in the bridge structure, as the load is concentrated at the location where the structure is most vulnerable to bending stresses. By considering the maximum moment induced by the Design Tandem, engineers can design the bridge to withstand the associated load effects and ensure its structural integrity.

1. Load configuration: The arrangement and distribution of live loads, such as vehicles, on the bridge influence how the load is distributed across the bridge structure.

2. Bridge stiffness: The stiffness and flexibility of the bridge components impact how the load is transferred and distributed throughout the bridge system.

3. Bridge geometry: The shape, span length, and alignment of the bridge play a role in load distribution, as these factors affect the distribution of forces and moments within the bridge structure.

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Answer:

The energy in pneumatic power systems is easily transmitted to gases, which absorb the energy of the system and lower its efficiency.

Explanation:

I did it on edge and got it right.

Answer:

The energy in pneumatic power systems is easily transmitted to gases, which absorb the energy of the system and lower its efficiency

Thanks for points!!! :D

Answer:

attached below

Explanation:

Given data:

Gaged flow = 52 m^3 / sec

Depth covering drainage area = 1450 km^2

Develop a 24-hour rainfall duration unit hydrograph for the watershed using observed hydorgraph

Runoff flow = gaged flow - base flows

                   = 52 - 52 = 0 m^3/sec

For 18 hours time duration

Direct runoff volume ( Vr ) = ∑ ( QΔt1 )

where Δt = 6

           ∑Q = 3666 m^3/sec

hence Vr = Δt * ∑Q  = 79185600 m^3

Next we will convert the Direct runoff volume to its equivalent depth covering the drainage area

= Vr / drainage area depth

= 79185600 / 1450000000 = 5.46 cm

Next we will find the unit hydrograph flows by applying the relation below

\(Q_{1.0cm} = Q_{5.46cm} (\frac{1.0cm}{5.46cm} )\)

where 14m^3/sec = \(Q_{5.6cm}\)

input value back to the above relation

\(Q_{1.0cm} = 2.57 m^3/sec\)

Attached below is The remaining part of the solution  tabulated below

and A graph of the unit hydorgraph for the given watershed

Note :

Base  flow total = 1560

UH total = 671.30

To design a one-input, one-output sequence detector for detecting the sequence "1111" using JK flip-flops, we can use the following state diagram:

Sequence Detector State DiagramIn this state diagram, S0, S1, S2, and S3 are the four possible states of the detector. The output of the detector is 1 when it reaches state S3 and remains in that state until the next clock pulse. The output is 0 for all other states.

The state transition table for the detector is:

Present State Input

S0 0 S0 0

S0 1 S1 0

S1 0 S0 0

S1 1 S2 0

S2 0 S0 0

S2 1 S3 0

S3 0 S0 1

S3 1 S1 0

To implement this state diagram using JK flip-flops, we can use the following circuit:Sequence Detector Circuit DiagramIn this circuit, J and K inputs of each flip-flop are set based on the state transition table. The Q output of each flip-flop is connected to the corresponding input of the next flip-flop. The output of the detector is taken from the Q output of the last flip-flop (Q3).To test the circuit, we can use the given input string x = 1101111111010 and verify that the output string z = 0000001111000 is produced. The simulation waveform of the circuit is shown below:

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As a result, 22.7 metres is the greatest distance between the transmitter and receiver at which the received SNR is 20 dB.

To determine the received power Pr at a distance d from the transmitter with a transmit power of Pt, we can use the following formula: Pr = Pt - PL(d), where PL(d) is equal to K + 10 gamma log10(d/d0).

The following formula can be used to determine the farthest distance dmax at which the received signal-to-noise power ratio (SNR) is 20 dB:

Pr / N0 = SNR

SNR being equal to 20 dB, the formula becomes:

Pr=SNR*N0 = 10

(SNR/10) * N0

In the equation above, we may substitute the equations for Pr and PL(d) to obtain:

Pt-K-Gamma*Log10(d/d0) = 10(SNR/10)*N0

When we solve for d, we obtain: d = d0 * 10

(10 * gamma) / ((Pt - K - SNR * 10 * log10(N0) - 10 * gamma * log10(d0)))

d = 1 * 10^

(10 mW - 20.8 - (-160) - 10*4*log10(1)) / (10*4) = 22.7 metres

As a result, 22.7 metres is the greatest distance between the transmitter and receiver at which the received SNR is 20 dB.

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A current value of 0.000005 A is equal to 5 HA.

Current is a measure of rate. In physics, there are various rate quantities. For instance, velocity, which measures how quickly an item changes position, is a rate quantity.

Velocity is defined mathematically as the position change to time ratio. The rate at which an object changes its velocity is called acceleration, which is a rate quantity.

Acceleration is defined mathematically as the ratio of velocity change to time. Power, which measures the rate at which work is done on an object, is a rate quantity.

A current value of 0.000005 A is equal to 5 HA.

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Answer:

Force is a kinetic quantity. Force = m x a. Hence, the mass of the body has an effect on force calculation.

Explanation:

The main sources of error in the collection of data are as follows : Due to direct personal interview. Due to indirect oral interviews. Information from correspondents may be misleading. Mailed questionnaire may not be properly answered. Schedules sent through enumerators, may give wrong information.