Find if the following system: y(n) = 5[x(n)]^2 + 10x(n) 1.
Static or Dynamic 2. Causal or Non-Causal 3. Linear or Non-Linear
4. Time Variant or Time Invariant 5. Stable or Unstable

Answer:

a true

Explanation:

duhhhhhhhhhhhhh

Answer:

D. Measure the voltage on the conductor with a known good meter

Explanation:

In a safe approach to electrical work,the thing that you should always do immediately before touching any electrical conductor is  C. Measure the voltage on the conductor with a known good meter.

One should never touch any wires or conductors until you are certain that their electrical supply has been turned off. Circuits must be locked out and marked with a tag to prevent re-energizing them. A conductor is always risky. Before working on a circuit, always test to make sure it is deenergized.

The action you should always do right away before touching any electrical conductor is  the safest approach to electrical work. Use a reputable meter to measure the voltage across the conductor.

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Technician A is correct because the automotive batteries can be recycled and the materials used to make new batteries.

Materials present in the battery;

Lead-acid batteries are used to store chemical energies and they are highly recyclable.

To recycle a lead-acid battery, first step is to break it into smaller fragments such as lead, plastic coating and the toxic material (sulfuric acid).

Thus, we can conclude that Technician A is correct because the automotive batteries can be recycled and the materials used to make new batteries.

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Answer:

I can't write stories well, but I can give character advice!

Explanation:

The final answer is 1011101103080 by using the divide-and-conquer integer multiplication algorithm to multiply the two binary integers 10011011 and 10111010.

Here is the steps to perform integer multiplication using the divide-and-conquer algorithm:

        10011011 = 100110|11

         10111010 = 101110|10

        (1) Multiply the two upper halves: 100110 x 101110 = 1011110000100

        (2) Multiply the two lower halves: 11 x 10 = 110

        (3) Multiply the sum of the two halves:

              100110 + 11 = 100121 x 101110 +  10 = 101230

        (4) Multiply the middle result: 100121 x 101230 = 1011101002970

          1011110000100 + 1011101002970 + 110 = 1011101103080

So, the final answer is 1011101103080.

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Answer:

A solenoid switch is an electrical switch that is often used where a high current circuit, such as a starter motor circuit, is brought into operation by a low current switch. When the key switch is turned to Start and the gearshift is in neutral, the circuit between the battery and the solenoid switch is complete

Explanation:

brainliest?

The function of the solenoid switch is better understood by the fact that it mediates the high current which is flowing in the circuit into an appropriate current that is easily required by any electrical device.

A solenoid switch may be defined as a type of electrical switch that is significantly utilized in a place where there is a high current flowing in the circuit. This high current is effectively brought into a functional low current switch.

According to the context of this question, a solenoid switch is placed between your vehicle's ignition module and the engine in order to regulate the high current into the functional one. This type of switch is also used in a motor circuit for the same function.

Therefore, the function of the solenoid switch is well described above.

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Answer:

Explanation:

Given that,

The area of glass \(A_g\) = \(0.11m^2\)

The thickness of the glass \(t_g=4mm=4\times10^-^3m\)

The area of the styrofoam \(A_s=11m^2\)

The thickness of the styrofoam \(t_s=0.20m\)

The thermal conductivity of the glass \(k_g=0.80J(s.m.C^o)\)

The thermal conductivity of the styrofoam  \(k_s=0.010J(s.m.C^o)\)

Inside and outside temperature difference is ΔT

The heat loss due to conduction in the window is

\(Q_g=\frac{k_gA_g\Delta T t}{t_g} \\\\=\frac{(0.8)(0.11)(\Delta T)t}{4.0\times 10^-^3}\\\\=(22\Delta Tt)j\)

The heat loss due to conduction in the wall is

\(Q_s=\frac{k_sA_s\Delta T t}{t_g} \\\\=\frac{(0.010)(11)(\Delta T)t}{0.20}\\\\=(0.55\Delta Tt)j\)

The net heat loss of the wall and the window is

\(Q=Q_g+Q_s\\\\=\frac{k_gA_g\Delta T t}{t_g}+\frac{k_sA_s\Delta T t}{t_g}\\\\=(22\Delta Tt)j +(0.55\Delta Tt)j \\\\=(22.55\Delta Tt)j\)

The percentage of heat lost by the window is

\(=\frac{Q_g}{Q}\times 100\\\\=\frac{22\Delta T t}{22.55\Delta T t}\times 100\\\\=97.6 \%\)

Answer:

Use a non digital multimeter.

Explanation:

If a digital multimeter displays "000" when reading amperage, the technician should adjust the multimeter to a higher amperage range.

This is because "000" typically indicates that the current being measured is too low for the current range selected on the multimeter.

By switching to a higher amperage range, the technician can get a more accurate reading and ensure that the multimeter is properly measuring the current in the circuit under test.

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The angle at which the directivity is 3 dB below its maximum value is approximately **45.0 degrees**.

Directivity is a measure of the concentration of radiation in a particular direction compared to an isotropic radiator. It represents the ratio of radiation intensity in the desired direction to the average radiation intensity over all directions.

When the directivity is 3 dB below its maximum value, it means that the radiation intensity in the desired direction has decreased by half compared to the maximum value. This corresponds to a loss of approximately 3 dB.
To find the angle at which this occurs, we use the formula: θ = cos^(-1)(1/sqrt(2)). Evaluating this expression gives us θ ≈ 45.0 degrees. Therefore, at approximately 45.0 degrees, the directivity is 3 dB below its maximum value.

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Three-phase transformers are used in electrical power systems to transmit and distribute electrical power. A three-phase transformer is a device that can either raise or lower the voltage of a three-phase power system.

A simulation of a three-phase transformer has been demonstrated in this assignment. The following are the tasks that were involved in the simulation:1. Demonstrate the simulations of a simplified per phase equivalent circuit of a three-phase transformer referred to the primary side.

 The magnetic core is constructed of steel laminations that are coated in an insulating varnish to reduce the eddy current loss. Each transformer has two windings that are wound around the core.The windings of a three-phase transformer can be connected in either a wye or delta configuration.

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When the control input ld is 0, the function of a 3-bit load register is to maintain its current value.

The ld input is typically used to select between loading a new value into the register or maintaining the current value. When ld is 0, the register ignores any new input and maintains the current value, allowing it to be used for temporary storage or holding a value for later use. This is useful in various digital circuits, such as counters or shift registers, where a value needs to be held or preserved for a certain amount of time before being processed or used in further calculations.

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Answer:

ratio = 1

Explanation:

Given data :

mean diameter ( D ) = 2m

wall thickness( t ) = 100 mm

internal pressure ( P )  = 10 MPa

where : σ1 = pd/4t = ( 10*2000 ) / ( 4 * 100 )  = 50 MPa

also ;  σ2 = 50 MPa

next calculate the Von-mises stress

attached below is the remaining part of the solution

next calculate the maximum stress

attached below

hence ratio of Von-mises stress over maximum shear stress =

=  50 / (2*25 ) = 1

Disc pad rivets come into contact with a rotor. This contact generates heat that causes the backing plate to expand. This expansion results in the backing plate pushing the disc pad away from the rotor.

That's why you'll hear a clunk or click when you release the brake pedal. What is the distance at which the disc pad rivets can contact a rotor The answer is option OD, which is 1/64th inch.In a brake system, disc pad rivets should not contact the rotor. If they do, they will wear the rotor prematurely and make a scraping sound. If the brake pads are worn too thin, they will grind against the rotors, causing damage to the rotors and making noise.

thickness of the brake pads and the amount of rotor material remaining are the two most critical measurements in determining if the rotors need to be resurfaced or replaced. If the rotors are worn, they may require replacement, which will be expensive. If the rotors have deep grooves, scoring, or are cracked, they must be replaced.

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The ratio of shear strength of the clay in vertical direction to that in horizontal direction is 1.41.

The force that can cause an object to rotate along an axis is measured as torque. Similar to how force accelerates an item in linear kinematics, torque accelerates an object in an angular direction.

The apparent shear stress of the soil can be calculated using the following formula:

τ = T/(2πLW)

Where τ is the apparent shear stress, T is the torque at failure, L is the length of the vane, and W is the width of the vane.

For the first test with the vane of length 150mm and diameter 60mm:

τ1 = 46/(2π × 0.15 × 0.06) = 666.67 kPa

For the second test with the vane of length 200mm and diameter 90mm:

τ2 = 138/(2π × 0.2 × 0.09) = 402.23 kPa

To calculate the ratio of shear strength of the clay in vertical direction to that in horizontal direction, we can use the formula:

tan φ = (τv - σ)/τh

Where φ is the angle of internal friction, τv is the shear strength in the vertical direction, τh is the shear strength in the horizontal direction, and σ is the normal stress.

Assuming that the normal stress is the same in both directions, we can rearrange the formula to get:

τv/τh = tan φ + 1

To find the angle of internal friction, we can use the average of the two apparent shear stresses:

φ = (1/2) × arctan((τ1/2 + τ2/2)/σ) = (1/2) × arctan((534.45 + 333.33)/σ)

Assuming a normal stress of 100 kPa, we get:

φ = (1/2) × arctan(867.78/100) = 21.16°

Substituting this value into the formula for the ratio of shear strength, we get:

τv/τh = tan(21.16°) + 1 = 1.41

Therefore, 1.41 the ratio of shear strength of the clay in vertical direction to that in horizontal direction.

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To calculate the bandwidth delay product, we need to multiply the bandwidth (R) by the round-trip time (RTT). The RTT is the time it takes for a packet to travel from the source (Host A) to the destination (Host B) and back. So, the bandwidth delay product in this scenario is 0.6 megabits (Mb).

First, we need to calculate the RTT. The RTT is the time it takes for a signal to propagate from Host A to Host B and back. Since the distance between the hosts is 15,000 kilometers, and the propagation speed is 2.5x10^8 meters/second, we can calculate the RTT as follows:

RTT = (2 * distance) / speed

RTT = (2 * 15,000,000 meters) / (2.5x10^8 meters/second)

RTT = 0.12 seconds

Now, we can calculate the bandwidth delay product:

Bandwidth Delay Product = Bandwidth (R) * RTT

Bandwidth Delay Product = 5 Mbps * 0.12 seconds

Bandwidth Delay Product = 0.6 megabits

Thus, the answer is 0.6 megabits (Mb).

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The aspect of life that would the differential association theorist be interested in order to understand how that person started smoking is option a: smoking habits of peers, family, and friends.

The act of Smoking is known to be a hard habit that is said to be difficult to break for a lot of reasons.

Note that it is one where a person is said to be only  nicotine addictive, but smokers are said to be the smoke multiple times a day.

Therefore, The aspect of life that would the differential association theorist be interested in order to understand how that person started smoking is option a: smoking habits of peers, family, and friends

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See full question below

If an individual is caught smoking in high school, what direction would a differential association theorist go in examining how that person started smoking?

smoking habits of peers, friends, and family

strain caused by society's structure that leads to smoking

the student's self-control

how this student was identified when everyone is equally susceptible

how am I going to do this, I have a friend that might be able to help I will check

The fundamental components of any digital system are logic gates. It is an electronic circuit with one or more inputs and just one output.

In any digital system, logic gates serve as the fundamental building elements. One or more inputs may be present, but there is only one output in this electronic circuit. An established logic governs the relationship between the input and the output. This is the basis behind the names AND, OR, NOT, etc. given to logic gates.

Using cables that stand for 1s and 0s, we transmit data through computers. In order for computers to someday perform more difficult tasks like computing the 50th digit of, they need to be able to manipulate those 1s and 0s. Input wire 1s and 0s are converted via logic gates in computers.

A K-map is a particular type of truth table that facilitates the mapping of parameter values and leads to a shortened Boolean expression. Functions with two to four variables are ideal candidates for K-maps.

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Answer:

The one end of a hollow square bar whose side is (10+N/100)  in with (1+N/100)  in thickness is under a tensile stress 102,500 psi and the other end is connected with a U bracket using a double-pin system. Find the minimum diameter of pin is used according to shear strength. Take the factor of safety as 1.5 and σ_all=243 ksi for pin material.

Explanation:

Explanation:

Los seres humanos siempre han tenido la necesidad de explicar y comprender los hechos sobre el mundo, ellos mismos y la naturaleza. La religión se configura como un conjunto de creencias comunes a una comunidad, que busca conectar al hombre con una fe en una divinidad superior que explique una visión y construcción del mundo. En sentido antropológico, la religión es una construcción evolutiva de parámetros sociales y dogmáticos como búsqueda de la creación de un sentido de pertenencia social, además de la búsqueda de la comprensión de uno mismo y del desarrollo espiritual.

La biología y la filosofía surgen como conceptos amplios que buscan explicar otros conceptos sobre la ciencia de manera sistemática, diferente a buscar una comprensión del mundo a través de la religión. La filosofía como concepto de que el hombre puede comprender el mundo a través de sus propias visiones y descubrimientos, desarrollando el pensamiento crítico y la búsqueda del conocimiento, que desarrolló las ciencias, entre ellas la biología que ayudó en la comprensión de parámetros esenciales para la calidad de vida humana, como la medicina por ejemplo.

Entonces hay una convergencia de los conceptos de religión, biología y filosofía, y es posible que el hombre crea en cada uno sin que el otro concepto se vea afectado.

Dropbox implemented the two-factor authentication feature after a series of security snafus in 2011 and 2012. The two-factor authentication feature is used for an extra layer of security to prevent unauthorized access.

After a series of security incidents in 2011 and 2012, Dropbox implemented several measures to enhance its security. One of the measures they implemented was two-factor authentication (2FA). This added an extra layer of security by requiring users to provide an additional verification step, typically a code sent to their mobile device, in addition to their password when logging into their accounts. Two-factor authentication helps protect against unauthorized access, even if the password is compromised.

While it is likely that Dropbox also implemented other security measures, such as firewalls and anti-virus software, specific information about those measures being implemented as a direct response to the security snafus is not readily available. However, SSL/TLS (Secure Sockets Layer/Transport Layer Security) was likely already in use by Dropbox even before the security incidents as it is a common security protocol used for encrypting data transmitted over the internet.

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Answer:

2.9237 ft/s

Explanation:

Given the data in the question;

A₁ = 9-inch × 9-inch = 81 in² = 81 / 144 = 0.5625 ft²

V₁ = 6.1 ft/s

A₂ = 13 in × 13 in = 169 in² = 1.17361 ft²

v₂ = ?

using the the equation if continuity

( Rate of volumetric flow is constant )

A₁V₁ = A₂V₂

we substitute

0.5625 ft² × 6.1 ft/s = 1.17361 ft² × V₂

3.43125 ft³/s = 1.17361 ft² × V₂  

V₂  = 3.43125 ft³/s  / 1.17361 ft²

V₂ = 2.9237 ft/s

Therefore, the speed of the air flowing into the room is 2.9237 ft/s

Punts, originally used as freight and angling boats, are shallow-water craft with a flat bottom and a square-cut bow.

Flat-bottomed hulls are made to float on the water's surface while moving very little. Due to the absence of resistance, flat-bottomed boats can travel pretty quickly, but if the sea is rough at all, the hulls will pound into each swell, making for an extremely unpleasant ride.

Bass boat and flats boats are both stable, and whose hulls are made for a shallow draft; as a result, they are typically more flat than that of the wider hulls of boats built to cruise offshore, in choppy seas.

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The combination of physical fitness, skills, habits, attitude, emotional fitness, knowledge, and mental fitness make up the Arch of Safe Drivers.

Correct answer  is c) The Arch of Safe Drivers.

Safe driving requires more than just being physically able to operate a vehicle. It involves having a variety of skills, such as being able to navigate traffic, obey traffic laws, and react to unexpected situations. Good driving habits, such as avoiding distractions and not driving under the influence, are also important for staying safe on the road. Attitude plays a big role in safe driving as well, as drivers with a positive attitude are more likely to stay calm and focused behind the wheel. Emotional fitness is also important, as being able to manage stress and other emotions while driving can help prevent accidents. Knowledge of traffic laws and safe driving techniques is also crucial for safe driving.

This concept highlights the importance of these factors in ensuring that drivers are well-equipped to maintain safety on the roads.  Finally, mental fitness, such as being able to concentrate and make quick decisions, is also important for safe driving. All of these factors combined make up the Arch of Safe Drivers.

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To determine the ideal reverse-saturation current density (J0) of a GaAs pn junction diode, we can use the following equation:

J0 = q * (Dp * Na / tpo + Dn * Nd / tno) * exp(-q * V / (k * T))

Where:

q is the electronic charge (1.6 x 10^-19 C)

Dp is the diffusion coefficient of holes (cm^2/s)

Na is the acceptor concentration (cm^-3)

tpo is the lifetime of minority carriers (s)

Dn is the diffusion coefficient of electrons (cm^2/s)

Nd is the donor concentration (cm^-3)

tno is the lifetime of minority carriers (s)

V is the applied voltage across the junction (V)

k is the Boltzmann constant (8.617 x 10^-5 eV/K)

T is the temperature (K)

exp is the exponential function

Given the parameters:

Nd = 2x10^16 cm^-3

Na = 8x10^15 cm^-3

Dn = 210 cm^2/s

Dp = 8 cm^2/s

tno = 10^-7 s

tpo = 5x10^-8 s

T = 300 K

We can substitute these values into the equation to calculate J0. However, we need to know the applied voltage across the junction (V) in order to compute the reverse-saturation current density accurately. Without the voltage value, we cannot provide a specific numerical answer for J0.

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As long as the rear toe is movable, this is often done during a 4-wheel alignment. If the rear is fixed, the front toe must be set to account for the thrust angle in order to center the steering.

The front wheels' direction of travel can be predicted by the thrust angle. So, failing to consider this angle can compromise even the front suspension that has been precisely aligned. As the front wheels steer to align themselves with the intended direction of the vehicle, it may cause the steering wheel to become misaligned. Positive camber causes the outside suspension to raise on the wheel as the vehicle turns. The weight of the car bears down on the steering axis and aids in straightening the wheel as soon as it turns back to face front.

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During a reversible, adiabatic process, the entropy of the nitrogen will never always increase. Option D

In a reversible, adiabatic process, the entropy of an ideal gas remains constant.

This is known as the isentropic process.

The increase in entropy is related to the irreversible nature of a process and the transfer of heat from a high-temperature reservoir to a low-temperature reservoir.

However, in an adiabatic process, there is no transfer of heat and the process is reversible, meaning that the entropy of the nitrogen will remain constant.

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Answer:

Full wave rectification flips the negative half cycle of the sine wave to positive so the result is two positive half cycles.

Explanation:

hope it helps a lil

Answer:

a)\(V_1=4.88m^2/s\)

  \(V_2=4.88m^2/s\)

b)\(P=-119.18kW\)

Explanation:

From the question we are told that:

Steady State Saturated vapor \(T_1= -20C=>253k\)

Mass Flow rate \(M=1.2kg/s\)

Exit Pressure \(P_2=7bar\)

Exit Temperature \(T_2=70C=>373k\)

From Refrigerant 134a Properties

\(T_1= -20C =>P_1=1.399 bar\)

Generally the equation for Volumetric Flow rate is mathematically given by

For Inlet

\(V_1=m\frac{RT_1}{P_1}\)

\(V_1=m\frac{8314*253}{1.399*10^3}\)

\(V_1=18.97m^2/s\)

For outlet

\(V_2=m\frac{RT_2}{P_2}\)

\(V_2=1.2*\frac{8314*343}{7*10^3}\)

\(V_2=4.88m^2/s\)

b)

Generally the equation for Steady state mass and energy equation  is mathematically given by

\(P=m(h_1-h_2)\)

From Refrigerant 134a Properties

\(T_1= -20C =>h_1=24.76kJ/kg\)

\(T_2= 70C =>h_2=124.08kJ/kg\)

Therefore

\(P=1.2(12.76-124.08)\)

\(P=-119.18kW\)

Therefore

Power input into the compressor is

\(P=-119.18kW\)

Answer:

The Negative battery cable is used to bolt the vehicle frame to allow the metal structure of the vehicle to serve as a large conductor to carry current.

Explanation:

Battery cable is large automotive cable. Like smaller types of automotive wire, it is available in PVC and cross-linked forms. Click here to read an earlier post explaining the differences between PVC and cross-linked wire insulation.

One type of PVC battery cable is SGT cable. It is rated to 80°C and therefore can be used in starters or battery grounds.  Cross-linked battery cables can also be used in starter and battery ground applications, and they are more resistant to heat, abrasion, and aging than PVC cable.

Two types of cross-linked battery cable are SGX and STX. They are rated to 125°C. Of the three types of battery cable (SGT, SGX, amd STX), STX has the thinnest wall, making it a popular choice for automotive applications with limited space.

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