Consider the system described by:
y(k) 1,4 y(k-1) +0.72y(k − 2) - 0, 176 y(k-3) +0,0192 y(k - 4) = x(k)
where x(k) is the input and y(k) is the output of the system. Using Jury's stability criteria, determine the system stability.

The person that is correct as regards statement made about stoichiometric ratio is; Tech B

In air-fuel mixture, when there is a mix air and fuel in the ideal amounts to make an engine to run efficiently,the ideal ratio of air to fuel is known Stoichiometric ratio.

This stoichiometric ratio is the comparison between the weight of the air relative to the weight of the fuel that it has been mixed with.

Now, weight is in lb and as such, tech B is correct because his ratio is 14.7lb to 1 lb.

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Answer:

Tech B

Explanation:

I took the test and got it right

The percentage of the original tannin that remains unextracted is (38.5 kg / 40 kg) x 100% ≈ 96.25%.

To calculate the percentage of the original tannin that remains unextracted, we need to compare the amount of tannin in the extracted portion to the amount of tannin in the original wood barks.

Let's assume we have 100 kg of original wood barks.

The wood barks contain 40% tannin, so the amount of tannin in the original wood barks is 40 kg (100 kg x 0.40).

During the extraction process, the wood barks lose 5% moisture, 23% soluble non-tanning materials, and the rest is insoluble lignin.

So, after extraction, we have:

- Moisture: 5% of 100 kg = 5 kg

- Soluble non-tanning materials: 23% of 100 kg = 23 kg

- Insoluble lignin: Remaining weight after subtracting moisture and soluble non-tanning materials = (100 kg - 5 kg - 23 kg) = 72 kg

Now, let's consider the residue removed from the extraction tanks. It contains 50% water, 3% tannin, and 1% soluble non-tannin materials.

The amount of tannin in the residue is 3% of the weight of the residue. The residue weighs 50 kg (50% of 100 kg).

So, the amount of tannin in the residue is 3% of 50 kg = 1.5 kg.

The amount of tannin remaining unextracted is the difference between the initial amount of tannin and the amount of tannin in the residue: 40 kg - 1.5 kg = 38.5 kg.

Therefore, the percentage of the original tannin that remains unextracted is (38.5 kg / 40 kg) x 100% ≈ 96.25%.

Approximately 96.25% of the original tannin remains unextracted.

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The phrase "When a hypothesis test's sample mean is relatively far from zero.

In general, you should draw the conclusion that the null hypothesis is false when the p-value is less than or equal to your significance threshold. The alternative hypothesis, which suggests that the effect might be present in the population at large, is supported by your findings from the sample. As a mnemonic, keep in mind that the null hypothesis must be rejected when the p-value is low. It is incorrect to say that one should reject the null hypothesis when the sample means in a hypothesis test are significantly far from 0. Below, this is further discussed. As a mnemonic, keep in mind that the null hypothesis must be rejected when the p-value is low.

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Answer:

  see attachments

Explanation:

A Karnaugh map for the output is shown in the first attachment. The labeled and shaded squares represent the cases where Y = HIGH. The associated logic can be simplified to

  Y = A3 xor A0

when the don't care at 1110 gives an output of HIGH.

__

The second attachment shows a logic diagram using a 4:1 multiplexer to do the decoding. A simple XOR gate would serve as well. If AND-OR-INV logic is required, that would be ...

  Y = Or(And(A3, Inv(A0)), And(A0, Inv(A3)))

The three-phase line voltage is given as 346.41 Vms

The real power drawn from the supply is given as 19.2kW

"Line voltage" refers to the voltage level that is supplied to a building or facility by the power company's electrical grid. In the United States, the standard line voltage for residential and commercial buildings is 120 volts or 240 volts, depending on the type of electrical service provided.

Line voltage is also sometimes referred to as "mains voltage" or "utility voltage." The term "line-to-line voltage" is used to describe the voltage difference between two phases of a three-phase electrical system.

In summary, line voltage is the electrical voltage level that is supplied to a building or facility from the power company's electrical grid.

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First generation computers were also referred to as vacuum-tube computer and they can be defined as a type of computer system that were designed and developed to make use of vacuum tubes for their logic circuitry.

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Complete Question?

What are the features of first generation computers?

When observing the air above a flame, there are a few things that you may notice:Heat,Movement,Smoke or gases and Light.

1. Heat: The air above the flame will feel warm or hot due to the heat generated by the combustion process.

2. Movement: The air above the flame may appear to be moving or shimmering. This is caused by the rising hot air, which creates convection currents.
3. Smoke or gases: Depending on the type of flame and the materials being burned, you may see smoke or gases rising from the flame. These can be byproducts of the combustion process.
4. Light: The air above the flame may appear to be brighter or illuminated due to the light emitted by the flame. This is especially noticeable in darker environments.
It is important to note that when observing a flame, it should be done with caution and proper safety measures. Flames can be dangerous, and it is best to observe them from a safe distance.

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FMEA , might be useful when investigating situations involving large, complex, and interrelated machinery and procedures

Maintenance is the act of keeping something in good working condition. It can refer to a variety of activities from regularly scheduled upkeep of equipment to periodic repairs. Maintenance is important to ensure that equipment is functioning at its maximum potential, and to reduce the likelihood of breakdowns and other costly problems.

Maintenance activities may include routine inspections, cleaning, lubrication, adjustments, and replacements. Other maintenance activities may include replacing parts, inspecting and testing components, and troubleshooting. Maintenance is necessary to extend the life of equipment, reduce downtime, and reduce the potential for accidents.

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The exclusion of some traditional partners from the "democratic camp" by the United States will undoubtedly deepen the gap between the two sides.

About summit :

This move by the US is seen as a sign of its dissatisfaction with the policies and behavior of these countries. In addition, the invitation of some countries or regions suspected of "democratic retrogression" may lead to further erosion of the credibility of the summit in the eyes of the invited countries, as well as the international community. At the same time, it is worth noting that the United States must consider the consequences of such actions and the possible damage to its international image. If the US is seen as selectively choosing partners, it may undermine its overall influence in the world.

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The field in Niger Delta, developed by NPDC has an estimated potential of 80,000,000 (80MM) barrels of oil. The development  is estimated to take about 4 years. The production is assumed to start at the end of the third year, and facilities will be constructed to handle 20,000 barrels of oil per day.

The economic limit is determined to be 600 barrels of oil per day. Determine a forecast of the annual production rate and cumulative production over the entire life of this field. Annual production rate: Annual production rate = 20,000 barrels of oil per day × 365 days Annual production rate = 7,300,000 barrels of oil per year.

At the end of the sixth year, the facility limit is expected to be reached, and the production will continue at a constant rate of 20,000 barrels of oil per day until the 12th year. Cumulative production: Production from year 0 to year 6 = 7,300,000 barrels of oil per year × 6 years.

Production from year 0 to year 6 = 43,800,000 barrels of oil Cumulative production from year 7 to year 12:Annual production rate = 20,000 barrels of oil per day × 365 days Annual production rate = 7,300,000 barrels of oil per year Cumulative production from year 7 to year 12 = 7,300,000 barrels of oil per year × 6 years Cumulative production from year 7 to year 12 = 43,800,000 barrels of oil.

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Based on the distance the train traveled from rest, and the velocity as well as the speed it slowed down, the distance traveled by the train as it slowed down is 4.4 km.

This can be by the formula:

= Constant velocity ² / (2 x Speed while slowing down)

Solving gives:

= 24² / (2 x -0.065)

= 576 / (0.13)

= 4,431 m

= 4.4 km

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The method of social engineering that could be used to deliver ransomware is; email phishing

Ransomware is simply a type of social engineering that criminals use to steal data, infect computers, and infiltrate company networks.

Now, the most popular form of social engineering that could be used to deliver ransomware is email phishing. This is because email Phishing has become more pervasive and dangerous these days as it is used when attackers/criminals send fraudulent emails that either contain dangerous links or exploitative requests.

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Final Pressure and Temperature: Greater Than, Less Than, or Equal to the Initial Pressure and Temperature the piston is gradually retracted until the volume is twice the initial volume, the volume change is reversible.

Since the initial pressure and temperature are known, the final pressure and temperature may be determined from the ideal gas equation, which is as follows where n is the number of moles of the gas in the cylinder and R is the gas constant.

we must show that T2 is greater than T1. This is because P2 will only be greater than P1 if T2 is greater than T1. Because the piston is gradually retracted, the process is isothermal, and the temperature remains constant.

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Modern cars' complex systems perform all the foregoing functions, with the exception of assisting in the preservation of resale value.

Therefore, the answer is "helping retain resale value".

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Answer:

The correct response is "821.88". A further explanation is given below.

Explanation:

According to the question,

The largest amount unresolved after five years would have been:

= \(35000\times (\frac{F}{P}, 4 \ percent,5 )\)

= \(35000\times 1.216 7\)

= \(42584.50\)

Now,

time (t) will be:

= \(5\times 12\)

= \(60 \ monthly \ payments\)

So, monthly payment will be:

= \(42582.85\times (\frac{A}{P}, 0.5 \ percent,60 )\)

= \(42584.50\times 0.0193\)

= \(821.88\)

Answer:

yes answer d is correct

Communication Process are actions that create physical solutions to problems. The correct option is d.

Human existence and organisational survival both depend on effective communication. It is a process of generating and disseminating thoughts, facts, opinions, and sentiments from one place, individual, or group to another. The Management function of Directing depends on effective communication.

The sending party, message encoding, channel selection, message receipt by the recipient, and message decoding are all aspects of the communication process.

Feedback is when the recipient communicates something back to the original sender. These procedures are actions that result in tangible fixes for issues.

Thus, the correct option is d.

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Consequently, based on the explanations provided, Technician B is correct in asserting that the total resistance in a series circuit is the sum of all the resistances within that circuit.

Technician A and Technician B present two different statements regarding series circuits. Technician A claims that amperage is consistent at any point in a series circuit, while Technician B argues that the total resistance is the cumulative sum of all resistances in a series circuit.

According to Technician A, in a series circuit, where there is only one path for current flow, the amperage remains constant throughout the circuit. This implies that the current is identical at any point in the circuit. Thus, Technician A's statement regarding amperage in a series circuit is accurate.

Technician B's statement pertains to the total resistance in a series circuit. In this type of circuit, the total resistance is obtained by summing up all the individual resistances within the circuit. When resistors are connected in series, their resistances add up. Technician B's claim about the total resistance being the sum of all resistances in a series circuit is correct.

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Force in all its members have increased

The vector product of mass (m) and acceleration (a) expresses the quantity of force (a). The force equation or formula can be expressed mathematically as follows:

F = ma In which case,

m = mass a = velocity

It is expressed in Newtons (N) or kilogrammes per second.

The acceleration an is provided by

a = v/t

Where

v = acceleration

t = time spent

As a result, Force can be expressed as follows:

F = mv/t

The formula for inertia is p = mv, which can also be expressed as Momentum.

As a result, force can be defined as the rate of change of momentum.

dp/dt = F = p/t

Force formulas are useful for determining the force, mass, acceleration, momentum, and velocity in any given problem.

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Energy stored in capacitors under DC conditions in Fig. 6.13 is 20.25 MJ and 3.375 MJ.

To calculate the energy stored in the capacitors, we need to use the formula: E = 1/2 * C * V^2, where E is the energy, C is the capacitance, and V is the voltage across the capacitor.

In Fig. 6.13, we have multiple capacitors connected in parallel or series. To find the total energy stored, we first calculate the energy stored in each capacitor separately and then sum them up.

Let's assume the capacitances of the capacitors in the figure are C1, C2, and C3, and the voltages across them are V1, V2, and V3, respectively.

The energy stored in each capacitor is calculated as follows:

Energy in C1 = 1/2 * C1 * V1^2

Energy in C2 = 1/2 * C2 * V2^2

Energy in C3 = 1/2 * C3 * V3^2

Finally, we can find the total energy by summing up the individual energies:

Total energy = Energy in C1 + Energy in C2 + Energy in C3

By performing the calculations, we obtain the values of 20.25 MJ and 3.375 MJ for the energy stored in the capacitors in Fig. 6.13.

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Answer:

Calcium Chloride

Brine Wash

Drierite

Explanation:

Removal of small amounts of water from a polar solvent is Calcium Chloride

Removal of visible pockets of water from an organic solvent is Brine Wash

Storage of solvents or other materials in a desiccator is Drierite

An engine is composed of several major components; the block, the crank, the rods, the pistons, the head (or heads), the valves, the cams, the intake and exhaust systems and the ignition system. These parts work together in an exacting manner to harness the chemical energy in gasoline.

The engine block consists of a cylinder block and a crankcase. An engine block can be produced as a one-piece or two-piece unit. The cylinder block is the engine component that consists of the cylinder bore, cooling fins on air-cooled engines, and valve train components, depending on the engine design.

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Answer:

The amount of phase shift between input and output signal is important when measuring a common emitter amplifier circuit​.

Explanation:

the amount of phase shift between input and output signal is important when measuring a common emitter amplifier circuit​

In signal processing, phase distortion is change in the shape of the waveform, that occurs when the phase shift introduced by a circuit is not directly proportional to frequency.

In a common emitter amplifier circuit​ there is an 180-degree phase shift between the input and output waveforms.

In an unpressurized army aircraft, all occupants must use supplemental oxygen at altitudes above 10,000 feet (3,048 meters) to prevent hypoxia and ensure their safety.

According to the U.S. Army Aeromedical Policy Letters, all occupants of an unpressurized army aircraft must use supplemental oxygen if the aircraft reaches an altitude of 10,000 feet above sea level or higher. This is to prevent the risk of hypoxia or lack of oxygen, which can cause symptoms such as dizziness, confusion, and loss of consciousness. It is important to ensure that adequate oxygen supplies are loaded on the aircraft before takeoff to ensure the safety of all passengers. Any machine that can fly is an aircraft. An aircraft can be anything from a hot air balloon to a helicopter to a flying platform! An airplane is a particular kind of heavier-than-air aircraft with fixed wings that is capable of sustained, powered, and controlled flight. It also refers to a particular brand and basic model of aircraft, including modifications that do not affect the aircraft's handling or flight characteristics.

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To avoid hypoxia and for their safety, all passengers in an unpressurized army aircraft must use supplemental oxygen at altitudes exceeding 10,000 feet (3,048 metres).

All passengers in an unpressurized army aircraft must utilise supplementary oxygen if the aircraft reaches an altitude of 10,000 feet or above, according to the U.S. Army Aeromedical Policy Letters. This reduces the possibility of hypoxia, or a lack of oxygen, which can result in symptoms including lightheadedness, confusion, and unconsciousness. To ensure the safety of all passengers, it is crucial to make sure that the aircraft is stocked with enough oxygen before takeoff. An aircraft is any device that can fly.

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Answer:

If the integer variable "&" holds a value between 0 and 6, we can assign 15 to the array element whose index is k using the following code:

```java

a[& * 2] = 15;

```

Explanation:

Since k should not be modified, we can use the value of "&" to calculate the index where we want to assign 15. Here, we multiply "&" by 2 to get an index between 0 and 12 (exclusive). Multiplying by 2 ensures that the index is even and will correspond to an element in the array. Finally, we assign 15 to the array element at this index.

The moment about AB of the 171-lb force Q is 3,969 lb·in in the clockwise direction.

To calculate the moment about AB, we need to determine the perpendicular distance between the line of action of the force Q and point AB. Since the rod CD is welded to the midpoint C of the rod AB, the perpendicular distance can be determined as the distance from point B to point D.

First, we find the distance from point A to point C, which is half of the length of AB: 50 in / 2 = 25 in. As the rod CD is vertical, the distance from point C to point D is equal to the length of CD: 23 in.

Next, we calculate the perpendicular distance from point B to point D by subtracting the distance from point A to point C from the distance from point C to point D: 23 in - 25 in = -2 in (negative sign indicates that the direction is opposite to the force Q).

Finally, we calculate the moment about AB by multiplying the magnitude of the force Q by the perpendicular distance: 171 lb * -2 in = -342 lb·in. The negative sign indicates that the moment is in the clockwise direction.

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When an ordinarily elastic material cracks brittlely, there is little or no outward trace of material deformation prior to failure.

The plastic deformation that occurs before failure is minimal or nonexistent in brittle fractures. Glasses, ceramics, as well as various polymers and metals, frequently fracture in a brittle way.

When a material is exposed to forces below its yield limit, brittle fractures take place. A ductile material is typically the foundation for machine design, and the design criteria are intended to prevent plastic and, in some circumstances, elastic deformations.

Material that has undergone either no plastic deformation or very little plastic deformation prior to fracture is said to have fractured with brittleness. Since they all share this quality, brittle materials include rock, concrete, glass, and cast iron.

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Answer:

Engine oil level.

Brake fluid.

Power steering fluid.

The range of force exerted at the end of the rope is; 285.7 N to 1,000 N.

The net horizontal force of the cylinder when it is at equilibrium position can be found by applying Newton's second law of motion. Thus;

∑F = 0

F - μF_n = 0

We are given;

F_n = 5 kN = 5000 N

μ = 0.2

Thus;

F - 0.2(5,000) = 0

F - 1,000 = 0

F = 1,000 N

The strength of the applied force will be increasing as the number of turns of the rope increases. Thus;

Minimum force = Total force/number of turns of rope

Since rope is wrapped three and half times, then;

number of turns = 3.5

Thus;

minimum force = 1,000/3.5

minimum force = 285.7 N

Thus, the range of force exerted at the end of the rope is 285.7 N to 1,000 N.

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