Compute the fundamental periods and fundamental angular frequencies of the following signals: a. 4 cos(0.56лn + 0.7) b. 5 cos(√2-1)

Answer:

Resistance = 3 Ω

Explanation:

As we know that, By Ohm's Law

V = IR

where

V is the voltage in volt

I is the current in amps

R is the resistance in ohm

Now,

Given that,

V = 15 volts

I = 5 amps

So,

R = V/I

  = 15/5

 = 3 Ω

⇒R = 3 Ω

The major release number in the ios image name c1900-universalk9-mz.spa.152-3.t.bin is 152. The letter "t" indicates the type of image, and "bin" is the file extension.

In the ios image name c1900-universalk9-mz.spa.152-3.t.bin, the numbers following "spa" indicate the software version number. The first three numbers after "spa" represent the major release number, which is 152 in this case. The following number, 3, represents the maintenance release number.

In the image name, the release number is represented by the numbers immediately before the hyphen. In this case, it is "152". The major release number is the first digit, which is "15".
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Answer:

\(139213.68\ \text{Btu/h}\)

Explanation:

Number of people = 510

Heat generated per person with respect to time = 80 W

\(1\ \text{W}=3.4121\ \text{Btu/h}\)

Heat generated by 510 people is

\(\dot{Q}=510\times 80\times 3.4121\)

\(\Rightarrow \dot{Q}=139213.68\ \text{Btu/h}\)

The contribution of people to the heating of the building is \(139213.68\ \text{Btu/h}\)

The Python reserved keywords are "continue" and "break" among the options given. So, the correct answers are ''continue'' and ''break''.

In Python, reserved words or keywords are words that have special meanings and are used to define the syntax and structure of the language. These words cannot be used as identifiers or variable names.

"Else" is a keyword in Python, but it is used in control flow statements such as "if-else" and "try-except," rather than being a standalone reserved keyword.

Therefore, the correct answer is:

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Which of the following are python reserved words (keywords)?

The capitalized cost of the permanent roadside historical marker is $116,386.30.

Capitalized cost

The capitalized cost is an assessment of the cost of the investment. Capitalized cost is a useful metric in cost accounting, particularly in the case of business assets. In the case of permanent roadside historical markers, we need to calculate the capitalized cost given the first cost and maintenance cost of $90,000 and $3,100 respectively that is done every 5 years.

Assuming the interest rate of 10% per year. We can use the following formula to calculate the capitalized cost.

C = P * (i / (1 - (1 + i)^(-n)))

Where,

C = Capitalized cost

P = First cost

i = Interest rate per year

n = Total number of years

To calculate the capitalized cost of the permanent roadside historical marker, we need to calculate the present value of the investment. We are given that the first cost of the historical marker is $90,000 and the maintenance cost of $3,100 is incurred once every 5 years at an interest rate of 10% per year.

The total number of years n = 20 years (4 maintenance cycles of 5 years each).

Therefore, using the formula, we have,

C = $90,000 + $3,100 * (PVIFA10%,20)

$3,100 * (PVIFA10%,20) = 8.513 (calculated using Excel or tables)

C = $90,000 + $3,100 * 8.513

C = $90,000 + $26,386.30 = $116,386.30.

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Answer:

Se obtendrán 116.66 litros de jugo concentrado, y el agua evaporada será por un total de 883.33 litros.

Explanation:

Dado que para conseguir jugo de naranja concentrada, se parte de un extracto con 7% en peso de sólidos el cual se mete a un evaporador al vacío, y en el evaporador se elimina el agua necesaria para que el jugo salga con una concentración del 60% de peso de sólidos, si se introducen al proceso 1000 kg/h de jugo diluido, para calcular la cantidad de agua evaporada y de jugo concentrado saliente se debe realizar el siguiente cálculo;

1000 x 0.07 = 70

60 = 70

100 = X

100 x 70 / 60 = X

7000 / 60 = X

116.66 = X

Por lo tanto, se obtendrán 116.66 litros de jugo concentrado, y el agua evaporada será por un total de 883.33 litros.

Answer:

What do u need it for just gaming or for streaming and other things

It is not safe to operate the motor with a 10-hp shaft load.

Explanation :
Solution-
First, determine the rated speed and current of the motor:
Rated speed = 850 r/min
Rated current = 500 V / (0.1414 ohms + 0.0412 ohms + 0.0189 ohms) = 30.22 A
Next, determine the speed and current for a 10-hp shaft load:
Speed = 1700 r/min
Current = 10 hp / (75 hp * 0.902) = 0.1343 A
Finally, determine whether it is safe to operate the motor with the 10-hp shaft load using the magnetization curve. we can see that the current at 1700 r/min is 0.1264 A, which is less than the current for the 10-hp shaft load (0.1343 A).

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Answer:

Hence the given statement is false.

Explanation:

For low-speed subsonic wind tunnels, the air density remains nearly constant decreasing the cross-section area cause the flow to extend velocity, and reduce pressure. Similarly increasing the world cause to decrease and therefore the pressure to extend.

The speed within the test section is decided by the planning of the tunnel.  

Thus by adjusting the pressure difference won't change the worth of test section velocity.

Answer:

The given statement is false .

Answer:

240

Explanation:

The highest voltage typically encountered on the job by a residential electrician is C. 240 volts.

Voltage is the measure of the difference in electrical power between two points in a circuit.

It is like the force that pushes electric charges in a circuit and is measured in volts (V) and affects how strong the electric current flows in a wire.

In many countries, the United States included, residential electrical systems often use a split-phase setup with a voltage of 120/240 volts.

This voltage is widely used for things like household appliances, lights, and other electrical needs in homes.

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The formula for true strain after derivation from basic terms is; ε_t = In(1 + ε_e)

Formula for Engineering Stress is;

σ_e = Load/Area

Formula for true stress is;

σ_t = Force/Instantaneous Area

Formula for Engineering Strain is;

ε_e = ΔL/L₀

Formula for true strain is;

dε_t = dL/L

Total true strain is gotten from;

ε_t = ∫(dL/L) between boundaries of L_f and L_o

When we integrate between those boundaries, we have;

ε_t = In[(L₀ + ΔL)/L₀

⇒ ε_t = In[(1+ ΔL/L₀)

⇒ ε_t = In(1 + ε_e)

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The SQL queries for the given set of tables: EMPLOYEE (EmpNo, Name, DoB, Address, Gender, Salary, DNumber) DEPARTMENT (DNumber, Dname, ManagerEmpNo, MnagerStartDate) is given below.

The code that display the age of 'male' employees is given below:

sql

SELECT Name, TIMESTAMPDIFF(YEAR, DoB, CURDATE()) AS Age

FROM EMPLOYEE

WHERE Gender = 'male';

The code that  display all employees in the Department named 'Marketing':

sql

SELECT *

FROM EMPLOYEE

WHERE DNumber IN (SELECT DNumber FROM DEPARTMENT WHERE Dname = 'Marketing');

The code that display the name of the highest salary paid 'female' employee:

sql

SELECT Name

FROM EMPLOYEE

WHERE Gender = 'female'

ORDER BY Salary DESC

LIMIT 1;

Therefore, This code shows the age of male workers and workers in the ‘Marketing’ team, and the name of the woman who earns the most, using special statements.

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The productivity index (PI) for this well is 6.9 STB/day/psi.

The Productivity Index (PI) for this well is approximately 6.9 STB/day/psi.What is Productivity Index (PI)?Productivity index (PI) is a performance metric used to assess the capacity of an oil or gas well to produce hydrocarbons. It is a measure of the well's productivity that relates to the pressure drop across the wellbore's reservoir section and the flow rate of fluids (oil, gas, or water) from the reservoir into the wellbore.When the PI value is high, it means the well is very productive. When the PI is low, it means that the well is not very productive.The formula for the Productivity Index (PI) is as follows:PI = (2πkhd)/(μln(r_e/r_w) + s)Where:k = average permeability, mdh = net reservoir thickness, ftμ = fluid viscosity, cpd = drainage area, acr = wellbore radius, fts = skin factorPI Calculation:Given data,Net pay thickness (h) = 75 ftNet to gross ratio = 0.9Porosity (φ) = 6.5%Average permeability, k = 2 md and 15 md in the vertical and horizontal directions, respectivelyRelative permeability (kro) = 0.82Oil viscosity (μ) = 0.55 cpFormation volume factor (Bo) = 1.22 bbl/STBWellbore radius (rw) = 6 in. or 0.5 ftDrainage area (Ad) = 55 acres = (55 × 43560) ft² = 2395800 ft²Well length (L) = 1500 ftSkin value (s) = 0.8Correction factor for wellbore friction = 1.0The first step is to calculate the effective drainage radius (re) using the formula,re = (0.00708 × (φ^2) × (kh/μ))^(1/2)× (kro/Bo) × ln(r_e/r_w)Let's plug in the values of given parameters,re = (0.00708 × (0.065^2) × ((2+15)/2/μ))^(1/2) × 0.82/1.22 × ln(r_e/r_w)re = (0.04226/μ)^(1/2) × ln(r_e/r_w)We know, k = 2 md and 15 md in vertical and horizontal directions. So we use the harmonic average permeability.1/kh = 1/2 + 1/15kh = 2.14 mdUsing μ = 0.55 cp, the effective drainage radius is calculated as,re = 174.86 ftUsing the formula of PI,PI = (2πkh)/[μln(re/rw) + s]PI = (2 × 3.1416 × 2.14 × 1500)/(0.55 × ln(174.86/0.5) + 0.8)PI = 6.9 STB/day/psi.

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The total variable cost per unit is $170, and the total fixed costs are $1,464,000.

Total variable cost per unit:

Direct materials = 336,000/14,000 units = $24 per unit

Direct labor = 588,000/14,000 units = $42 per unit

Indirect materials = 392,000/14,000 units = $28 per unit

Sales commissions = 98,000/14,000 units = $7 per unit

Shipping = 210,000/14,000 units = $15 per unit

Total variable cost per unit = $24 + $42 + $28 + $7 + $15 = $116

Total fixed costs = $2,828,000 - ($24 x 14,000) - ($42 x 14,000) - ($28 x 14,000) - ($7 x 14,000) - ($15 x 14,000) = $1,464,000

Flexible budget at activity levels of 12,000 units and 16,000 units:

12,000 units: Total variable cost = 12,000 units x $116 = $1,392,000

Total fixed cost = 1,464,000

Total budget = $2,856,000

16,000 units: Total variable cost = 16,000 units x $116 = $1,856,000

Total fixed cost = 1,464,000

Total budget = $3,320,000

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Answer:

try settings and go to updates?

Explanation:

Answer:

attached below

Explanation:

Applying the state transition Formula

state - next = ( state *2 + in ) % 5

how this works : remainder of previous cycle is doubled to enable the calculation of the new remainder.  

Input of current cycle is represented as either 1 or 0

since the dividing number = 5 . possible remainders = 1,2,3,4,0

each remainder is represented as :

S0 = zero remainder , S1 = 1 remainder , S2 = 2 remainder, S3 = 3 remainder,

S4 = 4 remainder

A two-stage furnace can run at a predetermined output level that is either less than full heat or at maximum heat output.

Condensing furnaces are those that run with an AFUE of greater than 90%. This indicates that the furnace turns escaping water vapour back into energy and heat by condensing them. The furnace is therefore more effective than a noncondensing furnace.

The ability of a burner to burn fuel is indicated by the boiler's combustion efficiency. The amount of unburned fuel in the exhaust and the amount of extra oxygen in the exhaust are the two factors that influence the burner efficiency.

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Each bolt diameter in the standard system can have one of two thread pitches, coarse or unf.

The term used to describe the distinction between two threads is thread pitch. TPI is swapped out for thread pitch when talking about metric fasteners. Millimeters are used to measure the distance as well.

Use a caliper to measure the distance between the peaks of each thread in order to determine the thread pitch.

M2 x 0.4 x 5M

In terms of millimeters, the M2 designates the bolt's diameter.

There are when the number 4 is used to represent the thread pitch in millimeters.

5M denotes the length of the bolt in millimeters and 4M denotes the distance between each thread peak.

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Answer:

the turbine work in MW is   \(\mathbf{W_t = 10.47299 \ kW}\)

Explanation:

Given that:

the inlet temperature = 500°C

pressure = 600 kPa

exit temperature = 45°С

mass flow rate = 11 kg/s

The objective is to find the turbine work  in MW given that the mass flow rate of the steam is at 11 kg/s.

From the steam tables, the data obtained for the enthalpies at the inlet temperature of  500°C and a pressure of  600 kPa is:

\(\mathtt{h_1 : 3482.7 \ kJ/kg}\)

The turbine expansion process is also the isentropic process, as such:

Inlet entropy \(\mathbf{s_1}\) = Exit entropy \(\mathbf{s_2}\)

The data obtained from the steam table for \(\mathbf{s_1}\) = 8.003 kJ/kg.K

\(s_2 = s_{f2}+ x_2 *s_{fg2}\)

The data obtained from the steam tables for this entities are as follows:

\(\mathsf{s_{f2} = 0.638 \ kJ/Kg/K }\)

\(\mathtt{s_{fg2}=7.528 \ kJ/kg/K}\)

since  \(\mathbf{s_1}\) =  \(\mathbf{s_2}\) = 8.003 kJ/kg.K

Therefore;

\(8.003 = 0.638 + x_2 * 7.528\)

\(8.003 -0.638 = 7.528x_2\)

\(7.365= 7.528x_2\)

\(x_ 2= \dfrac{ 7.365}{7.528}\)

\(x_2 = 0.978\)

From the steam tables, the data obtained for the enthalpies at the exit temperature of  45°C and a pressure of  600 kPa is:

\(h_{f2}\) = 188.4

\(h_{fg2\) =2394.9

Thus;

\(h_ 2= 188.4 +0.978*2394.9\)

\(h_ 2=2530.61\) kJ/kg

The workdone for the turbine process can be computed as:

\(\mathsf{W_t = m(h1-h_2)}\)

\(\mathsf{W_t = 11(3482.7-2530.61)}\)

\(\mathsf{W_t = 11(952.09)}\)

\(\mathsf{W_t = 10472.99}\) kW

To MW, we have

\(\mathbf{W_t = 10.47299 \ kW}\)

b. detailed engineering and specific architectural project plans

General overall policy planning involves setting aspirations and realistic objectives, identifying goals, and establishing functional priorities. It is a high-level strategic process that provides direction and guidance for an organization or government. However, detailed engineering and specific architectural project plans are more related to implementation and operational activities, rather than strategic planning. These plans are typically developed after the general policy planning has been completed and provide more specific guidance on how to achieve the identified goals and objectives. Therefore, b. is the correct answer as it does not fit within the scope of general overall policy planning.

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The power exerted by the dominant group over minority groups through institutions, such as mass media and popular culture, in order to communicate and reinforce ruling values and beliefs that may be adopted by members of the minority group is referred to as hegemony.

The term "hegemony" best describes the concept described in the question. Hegemony refers to the social, cultural, and ideological influence wielded by the dominant group over subordinate groups within a society. It involves the imposition of dominant norms, values, and beliefs that shape the worldview and behavior of both the dominant and subordinate groups.

In this context, institutions like mass media and popular culture play a significant role in disseminating and reinforcing the ideologies and narratives of the dominant group. By controlling the representation, portrayal, and dissemination of information, the dominant group can shape public opinion and maintain their position of power and control.

However, it is important to note that while hegemony influences the beliefs and behaviors of some members of the minority group, it does not encompass all forms of discrimination, racism, or oppression. These terms represent specific manifestations of power imbalances and discriminatory practices, which can be reinforced by hegemonic systems but are not limited to them.

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Answer:

Use GitHub or stackoverflow for this answer

Explanation:

It helps with programming a lot

To find the tension in the string and the acceleration of the block, we can use the equations of motion for the system.

Assuming the mass of the block M1 is 1500N and the mass of the block M2 is 1000N, the equation of motion for the system is given by:

T - μMgcos(θ) = M1a + M2a

Where T is the tension in the string, μ is the coefficient of friction between the block M1 and the inclined plane, Mg is the weight of the blocks, θ is the angle of the inclined plane, and a is the acceleration of the blocks.

Substituting the given values, we get:

T - 0.2(1500 + 1000)9.81cos(45°) = 1500a + 1000a

Simplifying, we get:

T = 6715N - 3000a

Solving for a, we get:

a = (6715 - T)/3000

Therefore, the acceleration of the block is given by (6715 - T)/3000, where T is the tension in the string.

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When an electric current flows through a wire with resistance, energy is liberated as heat.

Thus, when a current flows through the resistor, the electrical energy is converted into heat energy. Hence the heat that is generated in the components of the circuit possesses some resistance and is dissipated into the air around the components.

Resistance in a wire causes a hindrance to the flow of electrons, which results in the conversion of electrical energy into thermal energy. This thermal energy is then dissipated into the surrounding environment, which can be felt as heat.

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On the print you would expect the pitch diameter of the gear to be 9.00 inches. Option A is right.

Gear ratio = 1/3

This is solved as number of teeth on pinion / teeth on gear

= Np/Ng

The pitch diameter = 1.5 x 2

= 3

Diametral pitch = 12

NP = 3 x 12 = 36

This is the teeth on piston

Ng = 3NP

Ng = 3 * 36

= 108

Hence pitch diameter = 108/12 = 9

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Answer:

Explanation:

The null hypothesis is that the mean fill volume is 16 oz, and the alternative hypothesis is that the mean fill volume is different from 16 oz. The level of significance is 5%, and the sample size is 15. The test statistic is t=0.0367t=0.0367. The p-value is 0.9738.

Since the p-value is greater than the level of significance, we fail to reject the null hypothesis. Therefore, there is not enough evidence to conclude that the mean fill volume is different from 16 oz. The engineer should not reset the machine.

```

The test statistic is calculated as follows:

t = (x - μ) / s / sqrt(n)

= (16.0367 - 16) / 0.0551 / sqrt(15)

= 0.0367

The p-value is calculated using the t-distribution with 14 degrees of freedom.

p-value = 2 * t.cdf(-0.0367, 14)

= 0.9738

```

Explanation:

The term refrigeration means cooling a space, substance or system to lower and/or maintain its temperature below the ambient one (while the removed heat is rejected at a higher temperature). In other words, refrigeration is artificial (human-made) cooling.

Refrigeration, is the act of removing undesirable heat from one thing, substance, or space and transferring it to another object, substance, or space.

Refrigeration refers to the process of chilling an area, material, or system in order to decrease and or keep its temperature below that of the surrounding environment.

Refrigeration, sometimes known as chilling, is the act of removing undesired heat from one item, substance, or area and transferring it to another.

The temperature can be lowered by using ice, snow, cooled water, or mechanical refrigeration to remove heat.

Hence,refrigeration, is the act of removing undesirable heat.

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Answer:

SECTION LEARNING OBJECTIVES

By the end of this section, you will be able to do the following:

Distinguish between static friction and kinetic friction

Solve problems involving inclined planes

Section Key Terms

kinetic friction static friction

Static Friction and Kinetic Friction

Recall from the previous chapter that friction is a force that opposes motion, and is around us all the time. Friction allows us to move, which you have discovered if you have ever tried to walk on ice.

There are different types of friction—kinetic and static. Kinetic friction acts on an object in motion, while static friction acts on an object or system at rest. The maximum static friction is usually greater than the kinetic friction between the objects.

Imagine, for example, trying to slide a heavy crate across a concrete floor. You may push harder and harder on the crate and not move it at all. This means that the static friction responds to what you do—it increases to be equal to and in the opposite direction of your push. But if you finally push hard enough, the crate seems to slip suddenly and starts to move. Once in motion, it is easier to keep it in motion than it was to get it started because the kinetic friction force is less than the static friction force. If you were to add mass to the crate, (for example, by placing a box on top of it) you would need to push even harder to get it started and also to keep it moving. If, on the other hand, you oiled the concrete you would find it easier to get the crate started and keep it going.

Figure 5.33 shows how friction occurs at the interface between two objects. Magnifying these surfaces shows that they are rough on the microscopic level. So when you push to get an object moving (in this case, a crate), you must raise the object until it can skip along with just the tips of the surface hitting, break off the points, or do both. The harder the surfaces are pushed together (such as if another box is placed on the crate), the more force is needed to move them.