In what way is the longitudinal stability affected by the degree of positive camber of the aerofoil?A) Positive, because the centre of pressure shifts rearward at increasingangle of attack.B) Positive, because the lift vector rotates backward at increasing angle ofattack.C) No effect, because camber of the aerofoil produces a constant pitch downmoment coefficient, independent of angle of attack.D) Negative, because the lift vector rotates forward at increasing angle ofattack.

As something of a result, the highest electric field in an unpaid labor p-n junction diode is around 8.93 x 104 V/cm. To calculate the maximum electric field (Emax) in an uncompensated p-n junction diode, we can use the following formula:

Emax = V / W

Where V is the applied bias voltage and W is the depletion width of the diode.

The depletion width can be calculated using the following formula for a double-sided abrupt junction:

W = [(2εε0 / q) * (NA*ND / (NA+ND)) * (Vbi + V)]^0.5

Where ε is the permittivity of silicon, ε0 is the vacuum permittivity, q is the charge of an electron, NA is the acceptor doping concentration, ND is the donor doping concentration, Vbi is the built-in potential, and V is the applied bias voltage.

We can first calculate the built-in potential using the following formula:

Vbi = (kT / q) * ln(NA*ND / ni^2)

Where k is the Boltzmann constant, T is the temperature in Kelvin, and ni is the intrinsic carrier concentration of silicon at 300K, which is approximately 1.5 x 10^10 (cm^-3).

Plugging in the given values, we get:

Vbi = (8.617 x 10^-5 eV/K * 300K / 1.602 x 10^-19 C) * ln(28 x 10^16 cm^-3 * 36 x 10^16 cm^-3 / (1.5 x 10^10 cm^-3)^2)

≈ 0.787 V

Next, we can calculate the depletion width using the formula above:

W = [(2εε0 / q) * (NA*ND / (NA+ND)) * (Vbi + V)]^0.5

= [(2 * 11.7 * 8.854 x 10^-14 F/cm / 1.602 x 10^-19 C) * (28 x 10^16 cm^-3 * 36 x 10^16 cm^-3 / (28 x 10^16 cm^-3 + 36 x 10^16 cm^-3)) * (0.787 V - 1.5 V)]^0.5

≈ 0.168 µm

Finally, we can calculate the maximum electric field using the formula at the beginning:

Emax = V / W

= -1.5 V / (0.168 µm * 10^-4 cm/µm)

≈ -8.93 x 10^4 V/cm

Therefore, the maximum electric field in AP the uncompensated p-n junction diode is approximately 8.93 x 10^4 V/cm.

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As the temperature of the material increases, the potential energy of the molecules increases. Thermal expansion occurs due to changes in temperature, and interatomic distances increase as potential energy increases.

Thermal expansion is used in a variety of applications such as rail buckling, engine coolant, mercury thermometers, joint expansion, and others.

It is to be noted that an application of the concept of liquid expansion in everyday life concerns liquid thermometers. As the heat rises, the mercury or alcohol in the thermometer tube moves in only one direction. As the heat decreases, the liquid moves back smoothly.

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Answer:

the answer is airfoil

Explanation:

hope the answer helps

Answer:

It is called the airfoil

Explanation:

The answer is D. ( airfoil) because an airport is a place. Air raid is a attack in the air and that only leaves airfoil, so airfoil is the correct answer.(Hoped that helped)

Providing timely, accurate responses; actively listening; seeking continuous feedback and improvement.

Demonstrating commitment to servicing internal customers involves adopting a customer-centric approach towards colleagues and other internal stakeholders within an organization.

Here are some ways to showcase this commitment:

By incorporating these practices, you can demonstrate your commitment to servicing internal customers, fostering a positive work environment, and building strong relationships within the organization.

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Answer:

  (√6)/3 ≈ 0.8165

Explanation:

The RMS value is the square root of the mean of the square of the waveform over one period. It will be ...

  \(\displaystyle\sqrt{\frac{1}{T}\left(\int_{\frac{T}{4}}^{\frac{3T}{4}}{1^2}\,dt+\int_{\frac{3t}{4}}^{\frac{5t}{4}}{(\frac{-4}{T}}(t-T))^2\,dt\right)}=\sqrt{\frac{1}{T}\left(\frac{T}{2}+\left.\frac{16}{T^2}\cdot\frac{1}{3}(t-T)^3\right|_{\frac{3t}{4}}^{\frac{5t}{4}}\right)}\\\\=\sqrt{\frac{1}{T}\left(\frac{T}{2}+\frac{T}{6}\right)}=\sqrt{\frac{2}{3}}=\boxed{\frac{\sqrt{6}}{3}\approx0.8165}\)

Answer:

The tangential stress for the steel at 30mm = 88.8MPa.

The tangential stress for the steel at 60mm = 35.5 MPa.

The tangential stress for the bronze at 20mm =  - 191.9 MPa.

The tangential stress for the bronze at 30mm =  - 138.6 MPa.

Explanation:

The outer radius bronze bushing = 60 mm/2 = 30 mm, the inner radius for bronze bushing = 40mm/2 = 20mm and the cylinder radius = 120mm/2 = 60mm.

Step one: The first step is to calculate or Determine the interface pressure.

The interface pressure = 0.05/ [ [ 30 × ( 1/210 ×10⁹) ] ×  [( 60² + 30²/ ( 60² - 30²) + 0.3 ] + [ 1/105 × 10⁹× [ ( 20² + 30²)/( 30² - 20²) - 0.3] ].

The interface pressure = 53.3 MPa

Step two: Determine the tangential stresses for steel and bronze as given below:

The tangential stress for the steel at 30mm = 10⁶ × 53.3 [ ( 0.06)² + (0.03)²/ ( 0.06)² - (0.03)² ] = 88.8 MPa.

The tangential stress for the steel at 60mm = 10⁶ × 53.3 × 2 × [0.03]²/  ( 0.06)² - (0.03)² ] = 35.5 MPa.

The tangential stresses for the bronze is calculated below;

=> The tangential stress for the bronze at 20mm = - [ 10⁶ × 53.3 × 2 × [0.03]² ] /  ( 0.03)² - (0.02)² ] = - 191.9 MPa.

The tangential stress for the bronze at 30mm = - [ 10⁶ × 53.3  × [ 0.03]² + (0.03)² ] /  ( 0.03)² - (0.02)² ] = - 138.6 MPa.

Answer:

  ground

Explanation:

In modern cars, the chassis is connected to the negative terminal of the battery, and provides the "ground" or "return" for the circuit.

Answer:

ground

Explanation:

Answer:

a) the  rate of cooling provided is 18604.8 Btu/h

b) the rate of exergy destruction in the evaporator is 0.46 Btu/Ibm

c) the second-law efficiency of the evaporator is 37.39%

Explanation:

Given that;

Temperature of sink TL = 50°F = 510 R

Temperature at evaporator inlet TI = 10°F = 470 R

mass flow rate m" = 0.08 lbm/s

quality of refrigerant at evaporator inlet x1 = 0.3

quality of refrigerant at evaporator exit x2 = 1.0

T₀ = 77°F = 537 R

h1 = 107.5 Btu/lbm

s1 = 0.2851 Btu/lbm·R,

h2 = 172.1 Btu/ lbm,

s2 = 0.4225 Btu/lbm·R.

a) rate of cooling provided, in Btu/h.

QL = m"( h2 - h1)

we substitute

QL = 0.08( 172.1 - 107.5

= 0.08 × 64.6

= 5.168 Btu/s

we convert to Btu/h

5.168 × 60 × 60

QL = 18604.8 Btu/h

Therefore the  rate of cooling provided is 18604.8 Btu/h

b) The rate of exergy destruction in the evaporator

Entropy generation can be expressed as;

S_gen = m"(s2 - s1) - QL/TL

so we substitute

S_gen = 0.08( 0.4225 -  0.2851  ) - 5.168 / 510

= 0.010992 - 0.01013

S_gen = 0.00086 Btu/ibm.R

now the energy destroyed expressed as;

X_dest = T₀ × S_gen

so

X_dest =  537 × 0.00086

X_dest = 0.46 Btu/Ibm

Therefore the rate of exergy destruction in the evaporator is 0.46 Btu/Ibm

c)  The second-law efficiency of the evaporator.

Energy expended is expressed as;

X_exp = m"(h1 - h2) - m"T₀(s1 - s2)

we substitute

= 0.08( 107.5 - 172.1 ) - [0.08 × 537 ( 0.2851 - 0.4225 )

= -5.168 - [ - 5.9027)

= -5.168 + 5.9027

= 0.7347 Btu/s

Now second law efficiency is expressed as;

nH = 1 - (X_dest / X_esp)

= 1 - ( 0.46 / 0.7347 )

= 1 - 0.6261

= 0.3739

nH = 37.39%

Therefore the second-law efficiency of the evaporator is 37.39%

Answer:

Connect your computer to the OBD(On-Board Diagnostics) port and see whats wrong

Explanation:

im a mekanic

mechanik

mecanic

meckanic

nvm, I fix cars

The javascript code that satisfies the given question that throws a range error exception if any of the numbers is greater than 50.  is given below

function processNumbers(numList) {

   var result = 0;

   if (numList.length < 4)

       throw new Error();

   for (var index = 0; index < numList.length; index++) {

       if (numList[index] > 75)

           throw new RangeError();

       result += numList[index] * 1.3 * index;

   }

   return result;

}

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The basic characteristic of the taxi service is that some taxi services are as extensive in range as either urban mass transit or commercial airlines.

A taxi is a cab that one hired b a single person or a group and they have a nonshared ride. The taxi service is found in various international destinations all over the world and especially at the airports, restaurants and hotels. Some place's taxi services are extensive and include the urban transits.

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probably in it's chromosomes

The average labor utilization is approximately 16.7% (rounded to 1 decimal place).Therefore, the correct option is: 16.7.

The formula to calculate the average labor utilization (%) is:Average Labor Utilization = (Total Production Time / Total Labor Time) * 100First, let's calculate the total production time.Total Production Time = Demand / Production RateTotal Production Time = 5.2 / 7.9Total Production Time = 0.6582 hourNow, let's calculate the total labor time of the first resource.Total Labor Time of First Resource = Total Production TimeTotal Labor Time of First Resource = 0.6582 hourTotal Labor Time of Second Resource = Total Production Time * Number of WorkersTotal Labor Time of Second Resource = 0.6582 hour * 5Total Labor Time of Second Resource = 3.291 hourNow, let's calculate the total labor time.Total Labor Time = Total Labor Time of First Resource + Total Labor Time of Second ResourceTotal Labor Time = 0.6582 hour + 3.291 hourTotal Labor Time = 3.9492 hourNow, let's calculate the average labor utilization.Average Labor Utilization = (Total Production Time / Total Labor Time) * 100Average Labor Utilization = (0.6582 / 3.9492) * 100Average Labor Utilization = 16.666666666666668.

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Answer:

Sum.

Explanation:

An electric motor can be defined as a machine which is typically used for the conversion or transformation of electrical energy into mechanical energy.

Basically, the mode of operation of an electric motor is simply to supply the motor with an alternating current (AC) voltage to one end, which is then used to power the axle (metal rod) at the other end of the motor.

Two motors can be made to run simultaneously in a synchronous manner through the use of a standby power system that provides the required level of power (alternating current and voltage).

Thus, if two motors are to be started at the same time, the standby power system must have the capacity to provide the sum of the starting kilovolt-ampere (KVA) values for the TWO motors.

A thread has a basic size of 10 mm and is a course series. Pitch = 1 mmA screw thread is a ridge that wraps around a rod or a shaft. Threads have various dimensions such as major diameter, minor diameter, pitch diameter, pitch, and flank angles.

A screw thread is used to form fasteners like bolts, screws, and nuts.The pitch of a thread is the distance between the two neighboring crest (or root) of a thread. It is denoted by P. For metric threads, it is expressed in millimeters. To determine the pitch of a thread, use the formula below;P = 1 / n, where n is the number of threads per unit length in millimeters.Example 1:Basic size = 10 mmCourse seriesNumber of threads per mm = 1 / pitch, since it's a course series. Pitch = 1 mm.

Example 2:Basic size = 12 mmFine seriesPitch = 1 / n, where n is the number of threads per unit length.Number of threads per mm = n = 1 / pitchPitch = 1 / 1.25 mmPitch = 0.8 mmQuestion 3: A thread has a basic size of 10 mm and is a course series.  The number of threads per mm = 1 thread per mmTo solve for the number of threads per mm, we will use the formula;n = 1 / pitch, where n is the number of threads per unit length.

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GIS

The full for GIS is : Geographic Information System.

The GIS is a system of mapping that is used to create, analyze, manage and map all the types of data.

It is a method capturing, checking as well as displaying all the data that is related to the position of the surface of earth.

Remote Sensing

Remote sensing is defined as a process where the various physical characteristics of an area are constantly monitored and detected by a process of measuring the reflection of the emitted radiations at ta distance.

The snow covered areas of the Kabul basin can be monitored and analyzed by using the process of GIS and remote sensing.

They provide a continuous source of information and data about snow covered peaks, the amount of snow to the authorities.

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Answer: the engineers are performing a tensile test

Explanation:

i took the test and got it right

Yes, it is possible to produce a polymer that is 100% crystalline. However, the process of achieving 100% crystallinity is highly dependent on the specific polymer being used and the production methods being employed. One example of a polymer that can be produced with high levels of crystallinity is PolyMet, which is a high-performance thermoplastic material. The production process for achieving high levels of crystallinity typically involves careful control of the cooling and solidification of the polymer to ensure that the molecular chains are aligned in a highly ordered fashion. Overall, achieving 100% crystallinity is a challenging process that requires careful control of multiple factors, including temperature, pressure, and processing conditions.

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Answer:

kindly check the explanation section.

Explanation:

The word ''sprawl'' as it is related to people and population simply means an irregular expansion and the word ''urban'' simply means a city. So, putting both together as "urban sprawl" simply means an irregular expansion of cities or town.

Urban sprawl is majorly caused by race and land and the characteristics of urban sprawls are: [1]. there is High dependency on automobiles, [2]. the development is dispersed, and [3]. there is low density.

Answer:

The final velocity of the rocket is 450 m/s.

Explanation:

Given;

initial velocity of the rocket, u = 0

constant upward acceleration of the rocket, a = 18 m/s²

time of motion of the rocket, t = 25 s

The final velocity of the rocket is calculated with the following kinematic equation;

v = u + at

where;

v is the final velocity of the rocket after 25 s

Substitute the given values in the equation above;

v = 0 + 18 x 25

v = 450 m/s

Therefore, the final velocity of the rocket is 450 m/s.

Answer:

An equipment or process powered by compressed air is a pneumatic tool.

The 3-bit R-2R digital to analogue converter with R=1 DOQ, Ro=1 OD Q and the reference voltage, Vret = 5 V is shown in the figure below:

The R-2R ladder network used for the 3-bit DAC can be made up of a series combination of equal valued resistors R (R=1 DOQ).

In addition, a feedback resistor Ro (Ro=1 OD Q) is connected between the output and the inverting input of the op-amp (U1).

The output voltage (Vout) is obtained at the output of the op-amp.

The output voltage of the 3-bit R-2R digital-to-analogue converter (DAC) can be calculated using the expression below:

\(V_{out} = \frac{V_{ref}}{2^{n}} \times \left( b_{2}2^{2} + b_{1}2^{1} + b_{0}2^{0}\right)\)

Where b2, b1 and b0 are the binary input bits, n is the number of bits and Vref is the reference voltage.

The binary input 101 represents the decimal number 5.

Therefore, the output voltage of the DAC can be calculated using the expression above with n=3 and Vref=5V:

\(V_{out} = \frac{5}{2^{3}} \times \left( 1\cdot2^{2} + 0\cdot2^{1} + 1\cdot2^{0}\right)\)

= \(\frac{5}{8}\cdot(4+0+1)\)

=\(\frac{25}{8} V\)

Hence, the output voltage of the 3-bit R-2R digital-to-analog converter for the input of binary 101 is 3.125 V.

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Answer:

Mechanic: a person who repairs and maintains machinery

Mechanical engineers: design power-producing machines

Explanation:

Answer:

int()

Explanation:

float() is using decimals, so that can't be it, like float(input( "how much does this cost?"))

print() is used to print something, not a user asking, like print("hello")

string() means like a whole, like string( I am good)

By elimination, int() is correct.

Hope this helps!

False. It is not recommended to reduce tire pressure below the manufacturer's recommendation, but it is also not recommended to maintain tire pressure at the recommended level in extreme heat conditions.

This is because extreme heat can cause a significant increase in tire pressure, leading to a dangerous condition known as tire overheating.

Tire overheating can occur when tires are driven at high speeds for extended periods of time, or when driving in hot weather conditions. Overheated tires can cause the tire's internal temperature to increase, leading to a reduction in tire life and an increased risk of tire failure.

To avoid tire overheating, it is important to regularly check the tire pressure and adjust it as needed. If driving in extreme heat conditions, it may be necessary to reduce tire pressure slightly to help regulate the internal temperature of the tire. This will help to minimize the risk of tire overheating and the associated dangers.

It is also important to note that tire pressure should be checked when the tires are cold, as tire pressure will increase as the tire heats up. This means that tire pressure should be checked before driving, and not immediately after driving in extreme heat conditions.

In conclusion, while it is not recommended to reduce tire pressure below the manufacturer's recommendation, it may be necessary to reduce tire pressure slightly in extreme heat conditions to help regulate the internal temperature of the tire and minimize the risk of tire overheating and tire failure.

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The configuration is connected to electric potential energy, which is a potential energy (measured in joules) resulting from conservative Coulomb forces.

The total effort performed by an external agent to bring a specific charge or system of charges from infinity to the current configuration without acceleration is referred to as the electric potential energy of that charge or system of changes.

The effort necessary to assemble a system of point charges by bringing them close together, as in the system from an infinite distance, is known as the electric potential energy of the system.

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Answer:

20.833 ohms

Explanation:

V = IR    re-arrange

V/I = R

250 / 12 = 20.833    ( 20  5/6)

The foundation depth (df) can be determined by considering the characteristics of the soil layers and the column load applied on the foundation.

To calculate the foundation depth (df), we need to consider the bearing capacity and settlement of the soil layers. The foundation should be designed to ensure that the applied load from the column is adequately distributed and does not cause excessive settlement or failure.

In this case, we have three soil layers: loose sand, medium clay, and dense sand, with corresponding thicknesses and properties. To determine the foundation depth, we need to identify the layer that provides the most favorable bearing capacity and settlement characteristics.

We can calculate the bearing capacity of each layer using appropriate methods such as Terzaghi's bearing capacity equation. The settlement can be estimated using methods like the elastic settlement equation. By comparing the results, we can determine the layer with the most suitable characteristics for the foundation.

Once the appropriate layer is identified, the foundation depth can be determined by summing the thicknesses of all the layers above that particular layer.

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