two structural elements with the same dimensions are compared. the structural element with a larger modulus of elasticity (e) isO heavier O less stiff O stiffer O less strong O stronger

The following are consequences of burning coal for energy increased levels of CO2 in the atmosphere, increased heavy metals (lead and mercury) released into the air and Acidified rain. The correct options are a, b and c.

Burning coal produces a number of main emissions: Sulphur dioxide (SO2), which causes respiratory conditions and acid rain, Nitrogen oxides (NOx), which cause respiratory diseases and smog, Particulates that cause lung sickness, respiratory diseases, fog, and haze, The main greenhouse gas produced by burning fossil fuels (coal, oil, and natural gas) is carbon dioxide (CO2).

Mercury and other heavy metals have been associated with developmental and neurological harm in both humans and other animals. Power stations produce bottom ash and fly ash as byproducts of burning coal.

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Answer:

At temperature is and relative humidity is 86% therefore,  the humidity ratio is 0.0223 and the specific volume is 14.289

At temperature is and Relative humidity is 40% therefore, the humidity ratio is  0.0066 and the specific volume is 13.535.

To calculate the mass of air can be calculated as follows:

Now , we going to calculate the volume,

The time which is required to fill the cistern can be calculated as follows:

Now, putting the value in above formula we get,

Therefore, the hours required to fill the cistern is 4.65 hours.

Explanation:

Answer:

Cool I think u should do Marvel first

The binary number 0011 1010 0011 represents the decimal value that is 962 in base 10.

The binary system employs two symbols: 0 and 1. The decimal system has 10 symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

The primary distinction between a binary number and a binary coded decimal. Both binary and BCD are equivalent for 0 to 9 decimal values, however when the decimal number is greater than one bit, BCD differs from binary.

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Answer: The elastic modulus and flexural strength are found to decrease with increased porosity. Fractography studies have been undertaken to identify the role of the pores on the fracture path. The deflection and cracking behavior of concrete structure depend on the flexural tensile strength of concrete. Many factors have been shown to influence the flexural tensile strength of concrete, particularly the level of stress, size, age and confinement to concrete flexure member, etc.

Explanation:

Answer:

Email etiquette is important

Explanation:

It is important to understand how to use correct email etiquette because it helps you communicate more clearly. It also makes you seem a bit more professional too. For example depending in who you're emailing like say you're emailing your teacher for help then here's how it'd go:

Dear(teacher name, capitalize, never use first name unless they allow it)

Hello (teacher name), my name is (first and last name) from your (number class) and I was wondering if you could please help me out with (situation, be clear on what you need help with otherwise it won't get through to them)? If you could that would be greatly appreciated!

Sincerely,

(your name first and last)

Answer:

A) Power output = 541.67 MW

B) Backwork ratio = 0.4

C) Improved thermal efficiency = 0.598

Explanation:

We are given;

Net power output; W'_net = 325 MW

Minimum Temperature; T1 = 300 K

Maximum Temperature; T4 = 1500 K

Compression Pressure ratio;P2/P1 = 12

From online tables, we have the following properties of air;

Specific heat capacity; C_p = 1.004 KJ/Kg

Adiabatic constant; k = 1.4

Temperature at stage 2 will be given by the formula;

T2 = T1(P2/P1)^((k - 1)/k)

Plugging in the relevant values gives;

T2 = 300(12)^((1.4 - 1)/1.4)

T2 = 610.18 K

Similarly, Temperature at stage 3 will be;

T3 = T4(P2/P1)^((k - 1)/k)

Plugging in the relevant values gives;

T3 = 750(12)^((1.4 - 1)/1.4)

T3 = 1525.45 K

Now, let's calculate the specific heat addition given by the formula;

q = C_p(T3 - T2)

q = 1.004(1525.45 - 610.18)

q = 918.93 KJ/Kg

Let's now calculate the specific net work output;

w_net = C_p[(T3 - T4) - (T2 - T1)]

w_net = 1.004[(1525.45 - 750) - (610.18 - 300)]

w_net = 467.13 KJ/Kg

A) Power output is given by;

W_T = (W'_net/W_net) × C_p(T3 - T4)

W_T = (325/467.13) × 1.004(1525.45 - 750)

W_T = 541.67 MW

B) back work ratio is;

f = (T2 - T1)/(T3 - T4)

f = (610.18 - 300)/(1525.45 - 750)

f = 0.4

C) Thermal efficiency is given by;

η = w_net/q

Since we are told that a regenerator, with an effectiveness of 85 percent, were installed in the power plant.

Thus;

η = (w_net/q)÷0.85

η = (467.13/918.94) ÷ 0.85

η = 0.598

The costs of construction are capitalized and are depreciated over the new total remaining useful life of 40 years (Option C).

Capitalization refers to the process of recording an expense or cost as an asset on a company's balance sheet rather than as an expense on the income statement. The asset acquired is usually capitalized when its future economic benefits exceed the amount of the investment, and the benefits will be realized over an extended period.

The building engineers estimated that the improvements added another 30 years to the building, for a total remaining useful life of 40 years. Therefore, the costs of construction are capitalized and are depreciated over the new total remaining useful life of 40 years. So, the answer is option C: The costs of construction are capitalized and are depreciated over the new total remaining useful life of 40 years.

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Proportional control is a type of control system where the output of the controller is directly proportional to the error between the desired setpoint and the actual output. In P-control with unity feedback, the output of the controller is multiplied by a gain factor Kp before being fed back to the system.

To compute the Routh Array for the closed-loop proportional control system, we need to first find the characteristic equation of the system. This is given by: 1 + Kp(3 + 2P(s))/(s(s+1)(s^2 + 2s + 2)) Simplifying this expression, we get: s^4 + 3s^3 + (2Kp + 3)s^2 + (2Kp + 3)s + 6Kp = 0 To construct the Routh Array, we write the coefficients of the characteristic equation in a table as shown below: s^4  1  2Kp+3  s^3  3  2Kp+3  s^2  (2Kp+3)/3  6Kp  s^1  6Kp/(2Kp+3)  s^0  0  For the closed-loop proportional control system with C(s) = kp = 3, the Routh Array is: s^4  1  9  s^3  3  9  s^2  3  0  s^1  0  s^0  0  Since all the elements in the first column of the Routh Array have the same sign, the system is stable. For the closed-loop proportional control system with C(s) = kp = 1, the Routh Array is: s^4  1  5  s^3  3  0  s^2  5/3  s^1  0  s^0  0  In this case, there is a sign change in the second column of the Routh Array, which means that the system is unstable. Therefore, based on the Routh Array, we can determine whether the closed-loop proportional control system is stable or unstable for different values of the gain factor Kp.

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The creative process that helps you overcome writer's block is called Reset.

Thus, could be the answer.

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is called ecoines

Explanation:

When an aircraft is in a non-accelerated level flight, it means that the aircraft is flying at a constant speed without any changes in direction or altitude. In this situation, there are four main forces acting on the aircraft, which are lift, weight, thrust, and drag. option B is correct

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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:

In a rolling tire, the magnitude of the spot's displacement is defined as the distance traveled by a point on the circumference of the tire with respect to a stationary observer. The magnitude of the spot's displacement is 2.88 m after 2.0 seconds.

The tire's radius is given as 23 cm and the magnitude of the spot's displacement is to be calculated after 2.0 seconds. Let's first calculate the total distance covered by the spot of the tire's circumference using the formula of distance = speed × time.

The formula for the distance covered by a point on a rotating wheel is given as:

d = 2πrN, Where r = the radius of the tire and N = the number of revolutions made by the tire during the given time period. Turning 23 cm to meters, we get r = 0.23 m.

The speed of the tire is the tangential speed of the wheel, which can be expressed as follows: v = rω, Where v = the linear speed, r = the radius of the wheel, and ω = the angular velocity.

We can determine the number of rotations (N) made by the tire using the following formula:

N = ωt / 2π.

Now, to determine the distance covered by the point on the wheel, we substitute the values in the given formula:

d = 2πrN= 2πr(ωt/2π)= rωt= r(2π/t)t= 2s.

Substituting the values, we get:

d = 0.23 m × ω × (2s) = 0.23 m × (2π/t) × 2 s= 2.88 m.

Thus, the magnitude of the spot's displacement is 2.88 m after 2.0 seconds.

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Answer:

D

Explanation:

An ignition coil is an example of a Solenoid. Thus, the correct option for this question is D.

Solenoids may be characterized as a coil of wire that is usually in a cylindrical form and carries a current that acts like a magnet. Due to this, a migratory core is drawn into the coil when a current flows, and that is utilized especially as a switch or control for a mechanical device.

Similarly, an ignition coil also represents an example of a solenoid because it also consists of a coil of wire and carries a current that acts like a magnet. While the concept of the transformers is different as it stores a huge amount of electric current and spread it accordingly.

Therefore, an ignition coil is an example of a Solenoid. Thus, the correct option for this question is D.

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Answer: skip what

Explanation:

Answer:

answer someone else's question and you will never have to skip again

Explanation:

"Use a theory that accounts for material yielding" to avoid false answers that use the method of finite elements based on linear elastic material model assumptions.

Thus, "Use a theory that accounts for material yielding" to avoid false answers that use the method of finite elements based on linear elastic material model assumptions.

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Answer:B

Explanation: Dead Grass more flammable than wood and Green grass contains water.

Powder actuated tools should never be used on hard, brittle, or non-ductile materials.

Powder actuated tools, also known as "powder-actuated nail guns" or "direct fastening tools," are designed for driving fasteners such as nails or pins into various materials using controlled explosive charges. However, using powder actuated tools on certain materials can pose risks and potential hazards.

Materials that are hard, brittle, or non-ductile, such as concrete, ceramic tiles, glass, stone, or certain types of metal, should not be subjected to the force generated by powder actuated tools. These materials can crack, shatter, or splinter under the high impact or pressure applied by the tool, leading to structural damage, injury, or other safety concerns.

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When we cannot see or have less visibility, we must adjust our driving and speed control. We need to control our speed by observing the conditions and recognizing what they mean for safe driving. This implies that we must reduce our speed and even come to a halt when the situation demands it.

Speeding in fog, smoke, or low-light conditions can be extremely dangerous. It's critical to keep a safe distance from the automobile in front of you. Inadequate visibility may reduce the driver's ability to react to a sudden obstacle or potential danger.

You must be cautious while driving in foggy or other low visibility conditions, and it is essential to know what to do if you cannot see while driving, for example

1. Slow down or come to a halt if necessary

2. Use low beam headlights or fog lights if your automobile is equipped with them.

3. Avoid high beam headlights since they will only reflect back at you, reducing your visibility.

4. Allow more distance between your car and the car in front of you.

5. If possible, follow a vehicle's taillights, but don't get too close to it.

6. Stay to the right of the road.

7. Look for the road's edge markings or a vehicle in front of you that can guide you.

8. Avoid changing lanes or passing other automobiles because it will increase your risk of collision.

9. When you cannot see, never stop in the middle of the road since it can lead to a collision or crash.

10. Remember that your car's headlights are not enough to provide you with the clarity you require. Therefore, it is critical to lower your speed and remain cautious.

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The given statement is false. The "something a person has" authentication mechanism does not utilize biometrics but instead relies on physical objects or tokens possessed by the user.

The "something a person has" factor in authentication refers to the possession of a physical object that is unique to the individual and can be used to verify their identity. Examples of such objects include smart cards, key fobs, security tokens, or electronic devices like smartphones.

Unlike biometric authentication, which relies on the inherent physical or behavioral characteristics of the user, the "something a person has" approach focuses on the physical possession of an item that can be used for authentication purposes. The user presents or uses the physical object as evidence of their identity, typically by entering a unique code, using a security chip, or generating a one-time password.

This authentication mechanism is often used in combination with other factors such as passwords (something a person knows) or biometrics (something a person is) to create a multi-factor authentication (MFA) system. By combining different factors, MFA provides an additional layer of security to ensure that the person accessing the system or service is indeed the authorized user.

Thus, the correct option is "false".

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Answer:

Each of the metal specimens HAS an indentation near the center to ensure that the fracture point would occur in this region. Tension tests WERE CONDUCTED as follows. Two pieces of reflective tape WERE PLACED approximately 1 inch apart in the center of the specimen where the indentation 4 WAS LOCATED. The width and the thickness of the specimen at this location WAS MEASURED using a Vernier caliper. Then the specimen WAS SECURED in the MTS Load Frame. A laser extensometer WAS PLACED into position to measure the deformation of the specimen. The laser extensometer WAS USED to measure the original distance between the pieces of reflective tape. The MTS WAS SET to elongate the specimen one tenth of an inch every minute.

Effective operation of roller chain and gear couplings requires proper alignment and lubrication.

Roller chain coupling are compact and flexible couplings. They are used for low to moderate speed/torque applications. For effective operation they need to be maintained by applying lubrication and aligning.

Gear couplings are used for high speed and torque applications. For effective performance they need to be lubricated frequently and proper alignment is needed.

Hence effective operation of roller chain and gear couplings  requires proper lubrication and alignment.

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Answer:

i play it

Explanation:

In a vapor compression system used for cooling a home and rejecting energy to the outdoor ambient, the cooling COP (Coefficient of Performance) will decrease as the temperature difference between the indoor air and the ambient air decreases.

The cooling COP is a measure of the cooling efficiency of the system, which is defined as the ratio of the amount of cooling provided to the amount of energy consumed by the compressor. When the temperature difference between the indoor air and the ambient air decreases, the compressor has to work harder to remove the same amount of heat from the indoor air. This results in a decrease in the cooling efficiency of the system and hence a decrease in the cooling COP.
For example, if the outdoor ambient temperature is very high and the indoor air temperature is much lower, the cooling COP will be high

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The ideal response for the age standard deviation would be zero.

A standard deviation (or σ) is a measure of how distributed the data is in reference to the mean. When the standard deviation is low, the data are concentrated around the mean, and when it is large, the data are widely dispersed.

They invited 25 persons who recently turned 100 years old, so the majority of attendees will be between the ages of 100 and 102. There is extremely little likelihood that anyone will be older than 102.

Since the majority of the data are centered at 100, the standard deviation will be zero or very close to it.

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Which of the following best represents the standard deviation for the ages of the new centenarians?

0

100

30

25

Answer:

8 Tips on Better Communication with the Opposite Sex

Put emotions away. Ladies, this one is more aimed at us, for the most part. ...

Forget your pride. In discussions, especially these days, people always want to be the one that prevails. .

Put yourself in their shoes. .

Listen. ...

Respond. ...

Actually communicate. ...

Be detailed. ...

Don't communicate too much.

Explanation:

Answer: 150m

Explanation:

The following can be depicted from the question:

Dimensions of outer walls = 9.7m × 14.7m.

Thickness of the wall = 0.30 m

Therefore, the plinth area of the building will be:

= (9.7 + 0.30/2 + 0.30/2) × (14.7 × 0.30/2 + 0.30/2)

= 10 × 15

= 150m

The plinth area will be 150m.

Given information

Dimensions of outer walls = 9.7m × 14.7m.

Thickness of the wall = 0.30 m

Plinth area of the building = (9.7 + 0.30/2 + 0.30/2) × (14.7 × 0.30/2 + 0.30/2)

Plinth area of the building = 10 × 15

Plinth area of the building = 150m

Therefore, the Option A is correct.

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The color of a car is an example of a categorical variable. A categorical variable is a variable that takes on discrete values and can be grouped into categories based on some shared characteristic.

Categorical variables are a type of variable that takes on discrete values and can be grouped into categories based on some shared characteristic. This type of variable is often used in statistics to group data into meaningful categories and to help analyze patterns and trends in the data. The color of a car is an example of a categorical variable because it can be classified into different categories like red, blue, black, etc. Other examples of categorical variables include gender, race, and education level. These variables are used to group people or things into categories based on some shared characteristic. For example, gender can be used to group people into male and female categories, while education level can be used to group people into categories like high school, college, and graduate school. In conclusion, the color of a car is an example of a categorical variable. This type of variable is used in statistics to group data into meaningful categories and to help analyze patterns and trends in the data. Other examples of categorical variables include gender, race, and education level.

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Control points are areas of the vehicle structure that are used to monitor the precision of the vehicle body's dimensions as they are being assembled. Thus, option B is correct.

In a full frame car, the body is independent of the frame and fastened by bushings and bolts. The unibody is a structure made up of integrated panels that are welded, bonded, and riveted together.

Therefore, In a full frame car, the body is independent of the frame and fastened by bushings and bolts. The unibody is a structure made up of integrated panels that are welded, bonded, and riveted together.

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The following statement of the document is false.

What do you mean by document?

A document is a written, drawn, presented, or documented statement of ideas that frequently includes both non-fictional and fictitious content. The term comes from the Latin Documentum, which means "teaching" or "lesson": the verb doce means "to teach." Historically, the term was used to refer to written proof that may be used as evidence of a truth or reality. "Document" in the computer age usually refers to a mostly textual computer file, including its structure and format, such as fonts, colours, and graphics. Given the existence of electronic documents, the term "document" is no longer defined by its transmission medium, such as paper.

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