Solar implementation in Pakistan model and report including cost
analysis

Answer:

The electric ceiling fan was invented in 1882 by engineer and inventor, Philip Diehl. He had earlier invented an electric sewing machine and adapted the motor from this invention to create the ceiling fan. He called his invention the “Diehl Electric Fan” and it was such a success that he soon had many other people competing with him.

Explanation:

Explanation:

A business man who really focus on victory achieved through a right procedure will focus on long-term planning.

Let us understand what a short-term and long-term planning is.

Short-term will plan only for two-three years. But a long-term plan will look for future five years income projection, plan of expansion, bigger goals, etc.

A business man is the person who take risks and achieve more. A victory can be achieved in many ways one is taking bigger risks, next is focusing on long-term plans

If this is wrong, give me the answer choices so I know what's right or wrong. I'll edit the question if given to me.

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 process variable that is affected when the cooling tower performance has an increase in ambient temperature is lowering the efficiency of the condenser and reducing the cooling power.

The factors that is influenced performance of cooling tower are:

The temperature difference between the hot water inlet and cold water outlet at the tower is called a range. The temperature of tower's ambient is generally  4 ° C to 6 ° C (or even higher​) less than the ambient temperature. Because of the temperature is cool, the cooling tower ready to cool the water at a temperature below ambient temperature. The impact of ambient temperature makes energy consumption increase.

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Answer:

yes.

Explanation:

The statement that The different taste qualities (sweet, sour, bitter, salt, umami) each have their own area of the tongue that is most sensitive to them is False.

Gate Theory states that competing signals such as rubbing your elbow can make you more sensitive to pain. This theory suggests that physical signals such as massage, pressure, heat, or cold can block the transmission of pain messages through the spinal cord and prevent them from reaching the brain. Therefore, when people rub their elbows or apply pressure to the area, this stimulates the non-painful touch fibers and decreases the transmission of the painful stimuli.

As per the statement, patients who are allowed to self-administer morphine use less than when they receive injections from healthcare providers is True. Olfaction is a very important sense for humans, and they often become depressed when they lose their sense of smell (olfaction). The statement that The different taste qualities (sweet, sour, bitter, salt, umami) each have their own area of the tongue that is most sensitive to them is False.

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The major types of interior walls and partitions in a larger building are:

It is different because it is more durable than the rest and it is also:

Conclusively, the coats of plaster that are used over expanded metal lath are:

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Answer:

Cave-ins

Explanation:

The term excavation means any form of cuts, depression or trench by removing the surface of the earth. This process is intended primarily for the purpose of construction and maintenance or exploration. In this process there are many hurdles that pose danger to both human life and earth. The excavation workers face the great threat because of cave-ins. The collapsing of the earth's surface and random accidents prove to be very dangerous for the workers.

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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The final temperature of the system is obtained as 23.75  degrees Celsius. Option B

We know that the specific heat capacity has to do with the heat that is required to raise the temperature of 1 Kg of a substance  by a temperature of 1 Kelvin.

Now, we know that the heat that is lost by the aluminum would be equal to the heat that is gained by the water. This would be in line with the principle of the conservation of energy as we know it.

Knowing that;

Heat lost by the aluminum = Heat gained by the water

We have;

-[500 *  0.89 * (200 - T)] = [5000 * 4.18 * (T - 20)]

-[445 - 445T] = 20900 T  - 418000

-445 + 445T =  20900 T - 418000

Collecting the like terms;

445T - 20900 T =  - 418000 + 445

-20455 T = -417555

T = -417555/-20455

T = 23.75  degrees Celsius

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The question is incomplete. The complete question is :

The hydrofoil boat has an A-36 steel propeller shaft that is 100 ft long. It is connected to an in-line diesel engine that delivers a maximum power of 2590 hp and causes the shaft to rotate at 1700 rpm . If the outer diameter of the shaft is 8 in. and the wall thickness is \($\frac{3}{8}$\)  in.

A) Determine the maximum shear stress developed in the shaft.

\($\tau_{max}$\) = ?

B) Also, what is the "wind up," or angle of twist in the shaft at full power?

\($ \phi $\) = ?

Solution :

Given :

Angular speed, ω = 1700 rpm

                              \($ = 1700 \frac{\text{rev}}{\text{min}}\left(\frac{2 \pi \text{ rad}}{\text{rev}}\right) \frac{1 \text{ min}}{60 \ \text{s}}$\)

                              \($= 56.67 \pi \text{ rad/s}$\)

Power \($= 2590 \text{ hp} \left( \frac{550 \text{ ft. lb/s}}{1 \text{ hp}}\right)$\)

          = 1424500 ft. lb/s

Torque, \($T = \frac{P}{\omega}$\)

                 \($=\frac{1424500}{56.67 \pi}$\)

                 = 8001.27 lb.ft

A). Therefore, maximum shear stress is given by :

Applying the torsion formula

\($\tau_{max} = \frac{T_c}{J}$\)

        \($=\frac{8001.27 \times 12 \times 4}{\frac{\pi}{2}\left(4^2 - 3.625^4 \right)}$\)

      = 2.93 ksi

B). Angle of twist :

     \($\phi = \frac{TL}{JG}$\)

         \($=\frac{8001.27 \times 12 \times 100 \times 12}{\frac{\pi}{2}\left(4^4 - 3.625^4\right) \times 11 \times 10^3}$\)

         = 0.08002 rad

         = 4.58°

The question is asking whether that statement is true or false. Options are;

A) True

B) False

We want to know whether it is true or false that Swing arm restraints are intended to prevent a vehicle from falling off a lift and the answer is;

Option B; False

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Answer:

10

Explanation:

Front gear = 2

Rear gear = 5

The number of possible combination of gears :

2 different gears :

We find the number of ways of selecting 1 front gear from 2 and also 1 rear gear from 5

2C1 * 5C1

nCr = n! ÷ (n-r)!r!

2C1 = 2 ÷ 1 = 2

5C1

5C1 = 5! ÷ (5-4)! * 1

5C1 = 5 ÷ 1 = 5

2C1 * 5C1

2 * 5 = 10

The statement that is not true of ISO 9000 is b. The American National Standards Institute guarantees continued ISO 9000 certification for all the ISO-certified American companies. Here's why:  ISO 9000 is a set of international standards for quality management and quality assurance.

It is designed to help companies achieve consistency in their products and services while also improving customer satisfaction. ISO 9000 is a five-part series of standards that includes ISO 9001, ISO 9002, ISO 9003, ISO 9004, and ISO 19011.

The ISO 9000 certification process involves an accredited third-party certification body reviewing a company's quality management system to ensure that it meets the requirements of the ISO 9001 standard. Once a company has been certified, the certification body will issue an ISO 9000 certificate that the company can use in its advertising and publications.

Continued ISO 9000 certification is not guaranteed. To maintain certification, a company must undergo regular surveillance audits to ensure that its quality management system continues to meet the requirements of the ISO 9001 standard. If a company fails to meet these requirements, it can lose its certification.

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The required flow rate of water can be calculated using the following formula:
Power = (Flow Rate) x (Acceleration due to Gravity) x (Height)
Here, Power = 0.80 MW, Acceleration due to Gravity = 9.81 m/s^2 and Height = 55 m.
So, Flow Rate = Power / (Acceleration due to Gravity x Height)
Substituting the given values, we get:

Flow Rate = 0.80 MW / (9.81 m/s^2 x 55 m) = 1.43 m^3/s
To convert this to m^3/min, we multiply by 60:
Flow Rate = 1.43 m^3/s x 60 = 85.8 m^3/min
If friction were included, a higher flow rate would be required because some of the energy of the water would be lost due to friction with the pipe walls, resulting in a lower overall efficiency of the system.
To calculate the required flow rate of water in m³/min, we'll use the following equation:
Power = (ρ * g * h * Q) / (60 * 1000)
Where:
Power = 0.80 MW (800 kW)
ρ = Density of water (1000 kg/m³)
g = Acceleration due to gravity (9.81 m/s²)
h = Height difference between the reservoir surface and the discharge point (55 m)
Q = Flow rate in m³/min
We need to solve for Q:
800,000 W = (1000 kg/m³ * 9.81 m/s² * 55 m * Q) / (60 * 1000)
800 = 9.81 * 55 * Q / 60
Now, we can solve for Q:
Q = (800 * 60) / (9.81 * 55)
Q ≈ 14.75 m³/min
So, the required flow rate of water is approximately 14.75 m³/min.If friction were included, a higher flow rate would be required. This is because some of the energy would be lost due to friction, resulting in a lower efficiency of the turbine. Consequently, to maintain the same power output, the flow rate must be increased to compensate for the energy loss.

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Answer:

I HAVE NO CLUEEEE

Explanation:

???????????????????/

Answer:

I think its B

Explanation:

Im sorry if im wrong

The positive charge will experience two forces acting on it: a magnetic force in the opposite direction its motion, & an electric force in same direction as motion.

The Lorentz force is the force that a moving charge experiences in an electromagnetic field. It is the combination of electric and magnetic force, and is the result of the interaction between a moving charged particle and an electromagnetic field. The Lorentz force is given by the equation: F = qE + qv × B, where q is the charge of the particle, E is the electric field, v is the velocity of the particle, and B is the magnetic field.

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Answer:

Wood is heavy

Explanation:

To find the k-shortest paths from graph G using the modified Dijkstra algorithm, you can use the following Python implementation:```

from heapq import heappush, heappop
from itertools import count

def dijkstra(G, source):
   heap, seen = [(0, source, ())], set()
   while heap:

       (cost, v1, path) = heappop(heap)
       if v1 not in seen:
           seen.add(v1)
           path = (v1, path)
           if v1 == target:
               return (cost, path)

           for v2, cost2 in G.get(v1, {}).items():
               if v2 not in seen:
                   heappush(heap, (cost + cost2, v2, path))
   return (float("inf"), ())

def k_shortest_paths(G, source, target, k):
   return list(dijkstra(G, source, target, i)
               for i in range(k))

G = {'1': {'2': 1, '3': 2},
    '2': {'4': 3},
    '3': {'4': 1},
    '4': {'5': 2},
    '5': {}}

print(k_shortest_paths(G, '1', '5', 2)) # Output: [(3, ('1', '3', '4', '5')), (4, ('1', '2', '4', '5'))]```
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The should be no concerns about the space immediately below the tanks because there will be no damage to anything if any peril causes the tank to falls.

Potential hazards refers to the active source for potential damage on a building, structure etc

It is important we know that the storage tanks are placed on a platform next to the building at the second-floor level but nothing beneath the tanks stands.

Hence, there should be no concerns about the space immediately below the tanks because there will be no damage to anything if any peril causes the tank to falls.

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The radius of gyration of the hollow drive shaft with an inside diameter of 3 inches and an outside diameter of 3.5 inches is approximately 1.80 inches.

The formula for the radius of gyration is:

r = √(I / m)

Here,

I is the moment of inertia

m is the mass of the drive shaft.

To calculate the moment of inertia of a hollow drive shaft, use the following formula:

I = (π/4) × [(R² + r²) - (r²)]

where

R is the outer radius

r is the inner radius of the shaft.

We have:

Inner diameter = 3 inches

Outer diameter = 3.5 inches

Length of the shaft = 6 ft = 72 inches

Mass of the shaft = 25 lbs

Rotational speed = 500 rpm

Inner radius, r = 3/2 = 1.5 inches

Outer radius, R = 3.5/2 = 1.75 inches

Mass of the shaft, m = 25/32.2 = 0.776 kg (since the acceleration due to gravity is 32.2 ft/s²)

Using the above values in the formula for the moment of inertia,

I = (π/4) × [(1.75² + 1.5²) - (1.5²)]

 = 4.970 kg.m²  (approx.)

Now, using the formula for the radius of gyration,

r = √(I / m)

 = √(4.970 / 0.776)

 = 1.80 inches (approx.)

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When modeling an engineering process, the right choice between a simple but crude and a complex but accurate model is usually the complex model.

Engineers frequently follow a set of phases known as the engineering design cycle when developing useful goods, as well as procedures. This design are being frequently used by the person to create a model through which it can do various structural inputs.

The purpose of this modeling is to solve the complexity of the model as well as to allow a tolerable that can be more reliable.A complicated though the precise model is typically preferable to a simple yet unsophisticated one when simulating an engineering process.

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Answer:

building a bridge

Explanation:

you would have to sketch ideas to see what the bridge would look like and you need to know what to add to it to enhance the percentage of it working. if you sketch it you would have an idea of the process also

Building a bridge is an occasion in which an explanatory sketch would be used.

Sketches of explanations are created to demonstrate form, structure, and function. They accurately and objectively communicate a design, placing more emphasis on explanation than pitch. Outside of the design team, explanation sketches must be understandable.

Exploratory sketches, often referred to as thinking drawings, are a type of personal communication that frequently serve as the starting point for brand-new product concepts.

During a brainstorming session or for personal usage in a design notebook, these quick sketches are meant to quickly capture ideas. Exploratory research aims to study the important aspects of a topic that hasn't gotten much attention.

Thus, it is Building a bridge.

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When a signal travels via a transmission line, its amplitude lowers.

The phrase "attenuation constant" in communications refers to the attenuation of an electromagnetic wave travelling through a medium per unit distance from the source, also known as an attenuation parameter or attenuation coefficient. The unit of measurement is nepers per metre and refers to the real portion of the propagation constant.

Although we frequently convert to dB/meter in microwave engineering, the attenuation constant's natural units are Nepers/meter. Nepers/length must be multiplied by 8.686 to obtain loss in dB/length.

The signal's amplitude lowers as it travels through a transmission line. The symbol is used to represent it. 2. Phase sensitivity It is a part of the propagation constant that is fictitious.

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Answer:

a)123.37 mW

b) 58.75 mJ

Explanation:

a) The current (i) flowing through the terminal is given as:

\(i=\frac{dq}{dt} \\i=\frac{d(5sin(4\pi t)}{dt} =20\pi cos(4\pi t)\ mA\\\)

The Power delivered to the element (P(t)) is given as:

\(P(t)=v(t)i(t)= 3 cos(4\pi t)*20\pi cos(4\pi t)*10^{-3}\\P(t)=60\pi cos^2(4\pi t)*10^{-3}\\at \ t \ =\ 0.3s,\ the \ power\ delivered\ is:\\P(0.3) = 60\pi cos^2(4\pi *0.3)*10^{-3}=123.37mW\)

b)  the energy delivered to the element (W) between 0 and 0.6 s is given as:

\(W = \int\limits^0_{0.6} {P(t)} \, dt \\W=\int\limits^0_{0.6} {60\pi cos^{2}(4\pi t)} \, dt =58.75mJ\)

Gas turbine cycle is a thermodynamic cycle used in gas turbine engines and jet engines. In a gas-turbine cycle, fuel is combusted with air in a constant-pressure combustion chamber at a pressure of 0.8 MPa. The combustion process can simplified by (1) assuming.

that it could be represented as a heat-addition process and (2) neglecting the mass flowrate of the fuel (i.e. assuming that only air goes in and out of the combustion chamber).In a gas turbine engine, the basic operation principle is to suck in air from the surrounding and compress it.

The compressed air is then heated by fuel combustion in a combustion chamber, and the resulting gas expands, driving a turbine that generates power. This turbine is connected to a compressor, and the air compression cycle starts all over again.

The resulting gas also passes through a nozzle, which generates additional thrust to propel the aircraft. In other words, a gas turbine engine is essentially a complex air pump.

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