Consider the string length equal to 7. This string is distorted by a function f (x) = 2 sin(2x) - 10sin(10x). What is the wave formed in this string? a. In=12cos (nit ) sin(max) b. 2cos(2t)sin (2x) - 10cos(10t ) sin(10x) c. n 2 sin 2x e' – 10sin 10x e

DHCP also provides other benefits, such as efficient use of IP addresses, dynamic allocation of IP addresses, and support for mobile devices.

The two reasons that generally make DHCP the preferred method of assigning IP addresses to hosts on large networks are: DHCP automates IP address management: DHCP eliminates the need for network administrators to manually assign IP addresses to each host on the network, which can be time-consuming and error-prone. With DHCP, IP address assignment is automated, which saves time and reduces the potential for errors. DHCP centralizes IP address management: DHCP allows network administrators to manage IP address allocation from a central location, rather than having to manually configure each host individually. This makes it easier to manage IP address allocation, monitor network usage, and make changes to the network configuration.

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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

Answer:

According to search result [1], the driving environment that has been proven to have fewer collisions is the expressway.

Explanation:

The technician in B is right. In summer driving, raising RVP will increase the likelihood of gasoline boiling or vapour lock. When the fuel system's gasoline vaporises and produces a gas bubble, vapour lock happens.

Automobile exhaust gas analyzers are multi-gas analyzers that can detect carbon monoxide (CO), carbon dioxide (CO2), fuel-dependent hydrocarbons (HC), oxygen, and HC infrared (NDIR) (O2).

The engine might not idle if the EGR valve were to be open constantly. Combustion temperatures might increase under acceleration and load circumstances if there is insufficient or no EGR flow. As an example: Jump Knock (detonation).

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Answer:

The above three conditions are commonly referred to as the equations of equilibrium for planar structures. ∑ Fx and ∑ Fy are the summation of the x and y components of all the forces acting on the structure, and ∑ Mz is the summation of the couple moments and the moments of all the forces about an axis z, perpendicular to the plane xy of the action of the forces.

Explanation:

Normal Stress = 200 units / Area of the tube face

Normal Stress is equal to the force applied perpendicular to the surface area divided by the surface area. This force is also known as the axial load.

Therefore, we get the following formula:

Normal Stress = 200 units of Force / Area of the tube face

Answer:

good shoes

Explanation:

yes

Answer:

Explanation:

research how your company offers promotions show professional behavior at all times set both short and long-term personal goals make sure some goals are only for personal growth

Answer:

Fossil Fuels

Explanation:

Most industries and power plants rely on fossil fuels, such as coal, natural gas, and oil, to generate energy. These fuels are burned to produce heat, which is then used to create steam that drives turbines to generate electricity. However, there is a growing shift towards renewable sources of energy, such as wind, solar, hydroelectric, and geothermal power, due to concerns about the environmental impact of fossil fuels and their finite supply.

Answer:

The most common and well known of these documents are memos and emails, which are used in every type of business. In addition to this, technical communicators also create instructions, product guides and documentation, graphs, charts, images, videos, and other forms of content.

There are many ways to communicate

technical information,

1. Planning sheet- describe the process - this

shows steps on how to make your drill drift-

telling us how us how to make it.

2.Drawings- this tells you the dimensions, size

of component/workpiece

Inspection sheets- check the measurements

are within given tolerances, this shows us

you've made it within those tolerances.

Instructions/ images of how to make your.

Answer:

The answer "K = 0.0075"

Explanation:

If we try to measure up to 69 kPa of air, find mercury or fluid for gauge.  

While mercury was its largest liquid with a density of 13600 kg / m3 at normal room temperature.  

Let's all measure for 69 kPa that height of the  mercury liquid column.

\(\to P = 69 \ kPa\)

       \(= 69000 Pa \\\\\)

\(\to \rho = 13600 \ \ \frac{kg}{m^3} \\\\\\to g = 9.81 \ \ \frac{m}{s^2} \\\\\)

Formula:

\(\to P=\rho \ gh\)

\(\to 69000 = 13600\times9.81 \times h\\\\\to h= \frac{69000}{13600\times9.81} \\\\\to h= \frac{69000}{133416} \\\\\to h= 0.517179349 \\\\ \to h= 517 \ mm \\\\\)

The right choice for pressure measurements up to 69 kPa is mercury.  

Atmospheric Mercury up to 69 kPa Air 517 mm  

The relationship of Hg to Pa is = 134.22 Pa 1 mm Hg  

Static sensitivity to Pa of mm hg = change of mercury height to Pa:

\(= \frac{\Delta Hg }{ \Delta P }\\\\= \frac{1 }{ 133.3 }\\\\= 0.0075\)

Answer:

Explanation:

Like requested the following function is written in JavaScript and prompts the user for a total amount of Kenyan Currency that needs to be converted. It then places that value in a variable and divides it by 115 Ksh so that it gives us the USD value of that currency. Then that value is returned. The function can be attached to any button but it must be done manually when creating the button's onClick method.

function convertCurrency() {

 var KenyanAmount = prompt("Please enter the amount of Kenyan you want to convert.");

 var usdValue = "$" + (KenyanAmount / 115);

 return usdValue;

}

The program is a sequential program, and does not require loops and conditional statements

The function in JavaScript where comments are used to explain each line is as follows:

//This defines the function

function convertCurrency() {

//This gets input for the amount to convert

var Amount = prompt("Kenyan Shillings: ");

//This converts the Kenyan Shillings to US Dollars

var usdValue = KenyanAmount / 115;

//This returns the converted amount to the main method

return usdValue;

}

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Answer:

Biochemistry

Explanation:

Hope this helps :)

Answer:

Biochemistry

Have an amazing day!

Answer:

It's False

Explanation:

I did the assignment

Answer:Very productive

Explanation:

According to the basic principles of Electrical Resistance Welding, Resistance welding is used to fuse two metals together. See further explanation below.

It is to be noted that Electrical Resistance Welding comprises a welding head that exerts pressure and holds the metal between its electrodes, as well as a welding power source that applies electric current to the metal to be welded. When force is exerted, resistance creates friction heat.

A weld is a metal coalescence formed by heating to an appropriate temperature with or without pressure, and with or without the introduction of a filler substance.

Resistance welding bonds are classified into three types:

Different materials having dissimilar grain structures, such as molybdenum to tungsten, are bonded utilizing a relatively short heating time, high weld energy, and high force in a solid state bond, also known as a thermo-compression bond.

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Answer:

The most accurate reading for an analog meter is a pointer position between 2/3 of full scale and full scale. Typically, dc voltage measurements use the full count capability of the ADC, since signal conditioning is rather straight forward: it uses resistive dividers and filters.

Answer:a

Ieieksdjd snsnsnsnsksks

Control charts for variables are based on data that come from continuous measurement processes.

These processes generate numerical measurements of a characteristic of interest, called a variable. The variable can be any measurable attribute such as weight, length, height, volume, temperature, pressure, and so on. The data obtained from measuring the variable is plotted on a control chart to monitor the stability and performance of the process over time.
Variables control charts consist of two types: X-bar and R charts. The X-bar chart displays the average value of the variable, and the R chart displays the range or variation of the variable. Both charts are used together to detect any shifts or changes in the process mean or variability.
The data used to construct the control charts should be representative of the process being monitored and should be collected in a systematic and consistent manner. The data should be accurate, precise, and unbiased. Typically, a minimum of 20 to 25 consecutive samples of the variable is collected before constructing the control charts.
In summary, control charts for variables are based on data that come from continuous measurement processes of a measurable attribute. The data is used to construct X-bar and R charts to monitor the stability and performance of the process over time. The quality of the data is essential to ensure the reliability and usefulness of the control charts.

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Answer:

Because the shunt winding consist of a large number of turns,

Explanation:

It is nearly impossible to obtain satisfactory performance from a shunt motor connected to an ac power source because the shunt winding consist of a large number of turns, due to the high number of turns that the DC shunt motor has it develops a high impedance when connected to an ac power source. and due  to this high impedance the amount of current that flows through the field will be very low making it nearly impossible for the shunt motor to operate properly

Answer:

Explanation:

From the given information:

Strain fracture toughness \(K_k\)= 75 MPa\(\sqrt{m}\)

Tensile stress \(\sigma\) = 361 MPa

Value of Y = 1.03

Thus, the minimum length of the critical interior surface crack which will result to fracture can be determined by using the formula:

\(a_c = \dfrac{1}{\pi} ( \dfrac{k_k}{\sigma Y})^2 \\ \\ a_c = \dfrac{1}{\pi} \Big [ \dfrac{75 \times \sqrt{10^3}}{361 \times 1.03 } \Big]^2 \\ \\ a_c = \dfrac{1}{\pi} \Big [ 6.378474693\Big]^2 \\ \\ \mathbf{ a_c = 12.95 \ mm}\)

The correct answer is b) mantrap. A mantrap is a physical security system designed to separate a non-secured area from a secured area, typically used in high-security buildings or facilities.

A mantrap is a security feature that is commonly used in high-security facilities to prevent unauthorized access. It is a physical barrier that consists of two or more interlocking doors or gates, which are designed to separate a secured area from a nonsecured area. The doors or gates are designed to open only one at a time, which allows only one person to enter or exit the secured area at any given time. This helps to ensure that only authorized personnel are allowed access to sensitive areas, and it also prevents tailgating, which is the unauthorized entry of an individual into a secured area.

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My mother lives.

From the point of view of the sentence, the mother is living far away from the point of her child. She is living not very far but from the point of view of the streets. She is living in her old apartment that is at the end of the road.

Hence says lives just the corner from me.

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Answer:

Explanation:

I'm not 100% this is what you want, but here it is:

2

3

13

8

11

A

13

Answer:

The wind turbine generates \(19297.222\) kilowatt-hours of electricity daily.

The wind turbine makes a daily revenue of 1736.75 US dollars.

Explanation:

First, we have to determine the stored energy of wind (\(E_{wind}\)), measured in Joules, by means of definition of Kinetic Energy:

\(E_{wind} = \frac{1}{2}\cdot \dot m_{wind}\cdot \Delta t \cdot v_{wind}^{2}\) (Eq. 1)

Where:

\(\dot m_{wind}\) - Mass flow of wind, measured in kilograms per second.

\(\Delta t\) - Time in which wind acts in a day, measured in seconds.

\(v_{wind}\) - Steady wind speed, measured in meters per second.

By assuming constant mass flow and volume flows and using definitions of mass and volume flows, we expand the expression above:

\(E_{wind} = \frac{1}{2}\cdot \rho_{air}\cdot \dot V_{air} \cdot \Delta t \cdot v_{wind}^{2}\) (Eq. 1b)

Where:

\(\rho_{air}\) - Density of air, measured in kilograms per cubic meter.

\(\dot V_{air}\) - Volume flow of air through wind turbine, measured in cubic meters per second.

\(E_{wind} = \frac{1}{2}\cdot \rho_{air}\cdot A_{c}\cdot \Delta t\cdot v_{wind}^{3}\) (Eq. 2)

Where \(A_{c}\) is the area of the wind flow crossing the turbine, measured in square meters. This area is determined by the following equation:

\(A_{c} = \frac{\pi}{4}\cdot D^{2}\) (Eq. 3)

Where \(D\) is the diameter of the wind turbine blade, measured in meters.

If we know that \(\rho_{air} = 1.25\,\frac{kg}{m^{3}}\), \(D = 100\,m\), \(\Delta t = 86400\,s\) and \(v_{wind} = 8\,\frac{m}{s}\), the stored energy of the wind in a day is:

\(A_{c} = \frac{\pi}{4}\cdot (100\,m)^{2}\)

\(A_{c} \approx 7853.982\,m^{2}\)

\(E_{wind} = \frac{1}{2}\cdot \left(1.25\,\frac{kg}{m^{3}} \right) \cdot (7853.982\,m^{2})\cdot (86400\,s)\cdot \left(8\,\frac{m}{s} \right)^{3}\)

\(E_{wind} = 2.171\times 10^{11}\,J\)

Now, we proceed to determine the quantity of energy from wind being used by the wind turbine in a day (\(E_{turbine}\)), measured in joules, with the help of the definition of efficiency:

\(E_{turbine} = \eta\cdot E_{wind}\) (Eq. 4)

Where \(\eta\) is the overall efficiency of the wind turbine, dimensionless.

If we get that \(E_{wind} = 2.171\times 10^{11}\,J\) and \(\eta = 0.32\), then the energy is:

\(E_{turbine} = 0.32\cdot (2.171\times 10^{11}\,J)\)

\(E_{turbine} = 6.947\times 10^{10}\,J\)

The wind turbine generates \(6.947\times 10^{10}\) joules of electricity daily.

A kilowatt-hours equals 3.6 million joules. We calculate the equivalent amount of energy generated by wind turbine in kilowatt-hours:

\(E_{turbine} = 6.947\times 10^{10}\,J\times\frac{1\,kWh}{3.6\times 10^{6}\,J}\)

\(E_{turbine} = 19297.222\,kWh\)

The wind turbine generates \(19297.222\) kilowatt-hours of electricity daily.

Lastly, the revenue generated per day can be found by employing the following:

\(C_{rev} = c\cdot E_{turbine}\) (Eq. 5)

Where:

\(c\) - Unit price, measured in US dollars per kilowatt-hour.

\(C_{rev}\) - Revenue generated by the wind turbine in a day, measured in US dollars.

If we know that \(c = 0.09\,\frac{USD}{kWh}\) and \(E_{turbine} = 19297.222\,kWh\), then the revenue is:

\(C_{rev} = \left(0.09\,\frac{USD}{kWh} \right)\cdot (19297.222\,kWh)\)

\(C_{rev} = 1736.75\,USD\)

The wind turbine makes a daily revenue of 1736.75 US dollars.

Steel pipes are typically used in situations where the required pipe size exceeds the maximum size that can be effectively manufactured using other materials.

This is because steel has superior strength and durability compared to other materials, making it a suitable choice for larger pipes that need to withstand high pressure and heavy loads. Additionally, steel pipes are resistant to corrosion and erosion, ensuring a longer lifespan and reduced maintenance costs.

As a result, steel pipes are commonly used in industries such as oil and gas, water treatment, and construction for applications ranging from transportation of fluids to structural support.

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