When you measure flow, in order to control level, this can be regarded as Select one:
Feedback control
Feed forward control
On/off control
Ratio Control
b) and c)
(A) and (C) are wrong answers, and please give a reason for the answer PLEASE!!!

Answer:

Explanation:

a) Present worth of the system:

First step :

Calculation of bank installment:

We are given:

·nitial costs = $32,000

Borrow amount = ½ of purchase price

Payment of borrow amount = EOY 2 to EOY 4 (3 Equal installments)

Bank loan interest = 8.5% = 8.5/100 = 0.085

Assume the installment amount is F. They will be paid at end of year 2 to end of year 4. Their present value must be equal to borrow amount.

Present value of cost to be incurred in future can be calculated by below formula:

F P (1 + i)

F= Future cost

i = Rate of interest

n = time (in years)

Therefore,

F F $32,000 2 F (1 +0.085)2 (1 +0.085) 3 (1 +0.085) + +

.: 2.35394F = 16,000 or F = 16,000 2.35394 - $6,797.11

Step 2: Present worth of the system:

Given Data:

Initial costs = $32,000

Expected life = 7 years

Salvage value = $5,000

O&M Costs = $2,000 per year

MARR = 12.5%

= 12.5/100

= 0.125

Present value of uniform recurring payments is given by below formula:

P=A (1 + i) - 1 i(1+i)n 72

Where,

P = Present Value

A = Recurring payments per annum

i = rate of interest

n = time (in years)

Hence present value of O&M costs,

P1 = -2,000 x (1 + 0.125) 7-1 0.125 x (1 + 0.125) 7 -$8,984.60

Present worth of the system calculated in below table:

Description

F ($)

MARR (i)

per year

n (years)

P ($)

Initial investment (1/2 of purchase price)

-16,000.00

0.125

0

-16,000.00

Bank installment EOY2

-6,797.11

0.125

2

-5,370.56

Bank installment EOY3

-6,797.11

0.125

3

-4,773.83

Bank installment EOY4

-6,797.11

0.125

4

-4,243.40

Salvage value

5,000.00

0.125

7

2,192.31

O&M Costs

-8,984.60

0.125

0

-8,984.60

The current worth of the new system

-37,180.07

Part b) Decision rule of judgment:

Assuming current value of costs is lower than current value of benefit, an alternative is known to be economic to use based on current worth analysis.

Part c) Decision for the water filtration system:

Given Data:

· Annual savings from filtration system (A) = $13,000 per year

· Expected life (n) = 7 years

· MARR = 12.5%

= 12.5/100

= 0.125

Present value of benefits = 13,000 X (1 + 0.125)7 - 1 0.125 x (1 + 0.125) 7 $58,399.91

Since current value of costs is less than current value of benefit, this is an worthwhile system and has to be be purchased.

Answer:

Surface Parallelism When a surface is to be parallel to a datum plane, the feature control frame is connected by a leader to the surface, or to an extension line from the surface.

Explanation:

Answer:

b. A view of a building seen from one side, a flat representation of one façade. This is the most common view used to describe the external appearance of a building.

Explanation:

An elevation is a three-dimensional, orthographic, architectural projection that reveals just a side of the building. It is represented with diagrams and shadows are used to create the effect of a three-dimensional image.

It reveals the position of the building from ground-depth and only the outer parts of the structure are illustrated. Elevations, building plans, and section drawings are always drawn together by the architects.

The CIA triad and the Parkerian hex are the fundamental principles of information security.

Parkeriano, or Parkerian hexad: is a set of six elements of information security proposed by Donn B. Parker.

1. Confidentiality.

2. Ownership or Control.

3. Integrity.

4. Authenticity.

5. Availability.

6. Utility

The Parkerian hexagram adds three more attributes to the three classic security attributes of the CIA triangle

these are the fundamental principles of information security.

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or...................

Answer:

i believe it is true

Explanation:

Answer:

Information technology is important in our lives because it helps to deal with every day's dynamic things. Technology offers various tools to boost development and to exchange information. Both these things are the objective of IT to make tasks easier and to solve many problems.

Answer:

Explanation:

"Safety helmet" redirects here. It is not to be confused with hard hat.

Drug Enforcement Administration (DEA) agents wearing Level B hazmat suits

Personal protective equipment (PPE) is protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury or infection. The hazards addressed by protective equipment include physical, electrical, heat, chemicals, biohazards, and airborne particulate matter. Protective equipment may be worn for job-related occupational safety and health purposes, as well as for sports and other recreational activities. "Protective clothing" is applied to traditional categories of clothing, and "protective gear" applies to items such as pads, guards, shields, or masks, and others. PPE suits can be similar in appearance to a cleanroom suit.

The purpose of personal protective equipment is to reduce employee exposure to hazards when engineering controls and administrative controls are not feasible or effective to reduce these risks to acceptable levels. PPE is needed when there are hazards present. PPE has the serious limitation that it does not eliminate the hazard at the source and may result in employees being exposed to the hazard if the equipment fails.[1]

Any item of PPE imposes a barrier between the wearer/user and the working environment. This can create additional strains on the wearer; impair their ability to carry out their work and create significant levels of discomfort. Any of these can discourage wearers from using PPE correctly, therefore placing them at risk of injury, ill-health or, under extreme circumstances, death. Good ergonomic design can help to minimise these barriers and can therefore help to ensure safe and healthy working conditions through the correct use of PPE.

Practices of occupational safety and health can use hazard controls and interventions to mitigate workplace hazards, which pose a threat to the safety and quality of life of workers. The hierarchy of hazard controls provides a policy framework which ranks the types of hazard controls in terms of absolute risk reduction. At the top of the hierarchy are elimination and substitution, which remove the hazard entirely or replace the hazard with a safer alternative. If elimination or substitution measures cannot apply, engineering controls and administrative controls, which seek to design safer mechanisms and coach safer human behavior, are implemented. Personal protective equipment ranks last on the hierarchy of controls, as the workers are regularly exposed to the hazard, with a barrier of protection. The hierarchy of controls is important in acknowledging that, while personal protective equipment has tremendous utility, it is not the desired mechanism of control in terms of worker safety.rly PPE such as body armor, boots and gloves focused on protecting the wearer's body from physical injury. The plague doctors of sixteenth-century Europe also wore protective uniforms consisting of a full-length gown, helmet, glass eye coverings, gloves and boots (see Plague doctor costume) to prevent contagion when dealing with plague victims. These were made of thick material which was then covered in wax to make it water-resistant. A mask with a beak-like structure which was filled with pleasant-smelling flowers, herbs and spices to prevent the spread of miasma, the prescientific belief of bad smells which spread disease through the air.[2] In more recent years, scientific personal protective equipment is generally believed to have begun with the cloth facemasks promoted by Wu Lien-teh in the 1910–11 Manchurian pneumonic plague outbreak, although many Western medics doubted the efficacy of facemasks in preventing the spread of disease.[3]

Types

Personal protective equipment can be categorized by the area of the body protected, by the types of hazard, and by the type of garment or accessory. A single item, for example boots, may provide multiple forms of protection: a steel toe cap and steel insoles for protection of the feet from crushing or puncture injuries, impervious rubber and lining for protection from water and chemicals, high reflectivity and heat resistance for protection from radiant heat, and high electrical resistivity for protection from electric shock. The protective attributes of each piece of equipment must be compared with the hazards expected to be found in the workplace. More breathable types of personal protective equipment may not lead to more contamination but do result in greater user satisfaction.[4]

The use of a faulty PPE could be just as dangerous as not using any PPE at all because the user is still exposed to potential hazards and harm.

PPE is an acronym for personal protective equipment and it can be defined as a terminology that is used to denote any piece of equipment which offer protection to different parts of the body while working in a potentially hazardous environment.

Some examples of personal protective equipment (PPE) used to protect the different parts of the body are:

According to OSHA, the use of a faulty PPE could be just as dangerous as not using any PPE at all because the user is offered little or no protection at all.

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Social engineering is considered as both an art and a science. It is a form of hacking that involves the manipulation of victims through social interaction instead of directly breaking into a computer system.

The logic behind social engineering is simple, if one knows how to trick a person into giving out the data they need, they can easily access all the information and access they need with the least resistance possible. This makes social engineering a crucial part of hacking since it allows hackers to gain access to devices, accounts, or applications without making any additional effort.

By using social engineering tactics, a hacker can access a system without having to go through all the other hijacking tactics up their sleeve.The most challenging part of social engineering is securing trust, which is only possible by getting someone's trust. Hackers use various tactics to predict possible responses from a person whenever they are triggered to perform any action in relation to their security system.

The ability to read possible responses from a person is a significant skill for hackers since it enables them to predict passwords and other valuable computer assets without having to use too many tools. Successful hackers use social engineering as a powerful tool to penetrate a system.

In conclusion, social engineering is an essential component of hacking, and a significant part of its success lies in the art of manipulation.

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The performance that is required of a multiengine airplane with the critical engine inoperative, while carrying passengers for hire in ifr weather conditions is at least 50 feet a minute when operating at the MEAs of the route to be flown or 5,000 feet MSL, whichever is higher

Regulations for multi-engine airplanes with a disabled critical engine in IFR conditions while carrying paying passengers are dictated by aviation authorities.

Regulations may differ by country, so it is good to consult the appropriate authority for accurate information. However, common aviation practices dictate guidelines for multi-engine airplanes operating in these conditions.

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Answer:what's the question

Explanation:

Answer:

point hehe sorry sorry

Explanation:

I don't know

Potential difference need to be apply to plates of capacitors is 5.63.

The capacitor is a two-terminal electrical device that stores energy in the form of electric charges.

C=55.0μf

E=155j

E=1/2cv^2

E=1/2*55.0*v^2=155

v=155*2/55.0=5.63v

potential difference is 5.63v.

The energy stored in a capacitor is nothing but the electric potential energy and is related to the voltage and charge on the capacitor. If the capacitance of a conductor is C, then it is initially uncharged and it acquires a potential difference V when connected to a battery.

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Gleaning from the presented data, Min-su's optimum housing selection would be a wee apartment or studio flat which encompasses all the archetypical amenities required by him.

This route appears far more economical when compared to constructing or buying a house.

Moreover, an apartment or studio pad offers Min-su the requisite area he needs as single tenant, sidestepping superfluous areas or acreage that are of little benefit to him. It also encompasses the comfort of upkeep and maintenance matters tackled by the landlord or property custodianship firm, streamlining his expenses in both time and money in the forthcoming terms.

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Answer:

up up down down

Explanation:

left right left right b a select start

Based on  the data given, the regression equation y on-x is y = 3/4x + 1.

y = (3/4)x + 100

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Alternative deep foundation: helical piles. Installed with torque, ideal for limited access sites, vibration-free. Resist lateral forces.

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Answer:

a) 397.89 ohm

b) attached below

c) 0.707  as a ratio

Gain in dB = 20 log 0.707 = -3 dB

d)  0.8087

Gain in dB = 20 log \(|\frac{Vout}{Vin}|\) = -1.844 dB

Explanation:

A) Find the appropriate resistor

c = 0.01 uf

fc = 40 kHz

cut-off frequency ; fo = \(\frac{1}{2\pi RC }\)

from the above equation  R = \(\frac{1}{2\pi foC}\)  = 397.89 ohm

B) sketch of the circuit  is attached

C) The gain of the filter at the cutoff frequency

fc = 40 kHz,  

C = 0.01 uF ⇒ \(\frac{-j}{2\pi foC }\) =  -j 397.89

Vout = Vin * ( R / R- C )

Vout = Vin * ( 397.89 / (397.89 - j 397.89))

Vout = \(\frac{1}{\sqrt{2} }\)  Vin ∠45⁰

therefore gain = |\(\frac{Vout}{Vin }\)| = \(\frac{1}{\sqrt{2} }\) = 0.707  as a ratio

Gain in dB = 20 log 0.707 = -3 dB

D) Gain of filter at 55 kHz

c = 0.01 uF =  \(\frac{-J}{2\pi foC }\) =  -j 289.373 ohms

Vout = Vin * \(\frac{R}{R-C}\)  

        = Vin * ( 397.89 / ( 397.89 - j 289.373))

Gain in ratio \(|\frac{Vout}{Vin}|\) = 0.8087 ∠ 36.03⁰

therefore gain in ratio = 0.8087

Gain in dB = 20 log \(|\frac{Vout}{Vin}|\) = -1.844 dB

The power of the braking system is fundamentally measured in brake torque. The effective radius, or how far away from the hub center the brake caliper acts on the disc, is that distance.

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Brake torque is the primary measurement of the braking system's power. This distance is the effective radius, or the distance the brake caliper acts on the disc from the hub center.

To get the most out of an internal combustion engine's power and efficiency, the best ignition timing is needed to generate the most brake torque.

The ideal spark timing is always available for any engine operation. MBT works best with the throttle open, but idle engine operation is not ideal.

The term "brake torque" can be used to summarize the braking system's power. The effective radius is the distance from the hub center at which the brake caliper applies pressure to the disc.

The caliper's force divided by the system's effective radius is the braking torque. Brake torque is the force applied to the rotors to slow them down.

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Answer:

The correct option is A

Explanation:

Thermoplastics are polymers that can be recycled. They can be melted with heat and moulded into any shape which becomes hard when cooled. The heat applied to it in the process of recycling does not affect its chemical composition.

There are two main classes of thermoplastics; semi-crystalline and amorphous.

An amorphous thermoplastic has a disorderly arranged molecular structure which makes it difficult to have a definite melting temperature (Tm). However, a semi-crystalline thermoplastic has a well arranged molecular structure which makes it melt after a certain/definite amount of heat is absolved. Hence, the correct answer is A

Tensile stress in a thin wall spherical shell is given by

σ = ( p r ) /2t

This is the type of stress that involves pulling out. it is the opposite of compressive stress.

The tensile stress, σ  at the circumference of the shell is the hoop stress. The value equals that of pressure acting on the area.

Therefore:

σ * 2πr * t = p * πr^2

where

2πr = circumference of a circle

πr^2 = area of a circle

p = internal pressure

t = thickness

σ * 2πr * t = p * πr^2

σ = ( p r ) /2t

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The factors that  you need to consider when preparing to move gondolas are:

In choosing gondola one need to look at some  factor in decisions such as height.

Know that it is good to  consider the construction material and also the center wall configuration for its building also.

The factors that  you need to consider when preparing to move gondolas are:

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The address stored in p will depend on the size of the data type pointed to by the pointer. Since p is defined as an int pointer and x is initially assigned the value NULL, the address stored in p will be the address that is 2 integers (or 2 times the size of an integer) higher than the address stored in x.

When we declare \(int *x = NULL\), we are initializing the int pointer x with the value NULL, which means it is pointing to nothing or has no valid memory address.

Next, we declare \(int *p = x + 2\). Here, we are adding 2 to the value of x. However, since x is initially assigned NULL, adding 2 to NULL does not result in a meaningful memory address. This operation will not give us a valid pointer to any specific memory location.

The address stored in p will depend on the size of the data type pointed to by the pointer. In this case, the data type is int, which typically has a size of 4 bytes on most systems.

If we assume that each int takes 4 bytes, then adding 2 to the address stored in x will result in an address that is 8 bytes (2 * 4 bytes) higher than the address stored in x.

However, since x is initially assigned NULL, the operation x + 2 does not provide a valid memory address. It is important to note that performing arithmetic operations on a NULL pointer is undefined behavior and should be avoided.

Therefore, the address stored in p cannot be determined as it does not point to a valid memory location in this scenario.

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Answer:

the world will not be the same it will change dramticily and

things will not be the same

Explanation:

Answer:

A series circuit.

Explanation:

Electrical current flowing from one component to the next is an example of a series circuit.

In a series circuit, the components (such as resistors, light bulbs, or other devices) are connected in a sequence, so that the same current passes through each component in the circuit. This means that there is only one path for the current to follow.

In a series circuit, the total resistance is equal to the sum of the individual resistances of the components, the total voltage across the circuit is equal to the sum of the voltage drops across each component, and the current remains constant throughout the circuit since there is no alternative path for it to flow.

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True, General contracting businesses are looking into ways to speed up the building process by altering the way construction is done.

Construction is a broad phrase that refers to the art and science of creating systems, organizations, or items. Its origins are in the Latin construction and Old French construction. The noun construction refers to the process of building something, whereas the verb to construct refers to the act of building. Construction refers to the methods used to create buildings, infrastructure, industrial facilities, and related operations through to the end of their useful lives. Construction normally begins with planning, finance, and design and goes on until the asset is finished and ready for use. It also includes any repairs and maintenance, expansion, extension, and improvement work, as well as the asset's eventual deconstruction, decommissioning, and demolition.

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We show that despite the fact that cyber operations haven't yet been very effective in producing clear results or escalatory, recent policy adjustments and strategy announcements have been.

These modifications are based on the hazardous misconception that attacking is a quick and efficient approach to stop other countries from hacking the United States. New regulations for approving offensive preemptive cyber tactics run the risk of going over the line and altering the rules of the game. Political conflict and coercive diplomacy have historically taken place in cyberspace. A cyber policy with an offensive posture is risky, ineffective, and undermines online norms. Cyber strategy and policy must begin with a thorough understanding of the field, not with hypothetical scenarios.

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Where the above conditions are given,

1) To evaluate the new positions of the four corner points, we need to use the formula:

r(t) = r(0) + ∫[0,t] u(r(s)) ds

where r(0) is the initial position vector of the point, u is the velocity field, and the integral is taken over the path of the point from t=0 to t.

For point a, the initial position vector is:

r(0) = 1i + 1j

At t=1.5 seconds, the new position vector is:

r(1.5) = r(0) + ∫[0,1.5] u(r(s)) ds

We can evaluate the integral by substituting the velocity field and using the fundamental theorem of calculus:

∫[0,1.5] u(r(s)) ds = ∫[0,1.5] (Ax(s)i - Ay(s)j) ds

= [A/2 (s^2) i - A/2 (s^2) j] [from s=0 to s=1.5]

= 1.125 Ai - 1.125 Aj

Therefore, the new position vector of point a is:

a' = r(1.5) = 1i + 1j + 1.125 Ai - 1.125 Aj

= (1 + 1.125 A)i + (1 - 1.125 A)j

Similarly, we can find the new position vectors of points b, c, and d by using the same formula:

b' = (1 + 1.125 A)i + (2 - 1.125 A)j

c' = (2 - 1.125 A)i + (2 + 1.125 A)j

d' = (2 - 1.125 A)i + (1 + 1.125 A)j

Substituting A = 0.3^(-1), we get:

a' = 1.375i - 0.625j

b' = 1.375i + 0.375j

c' = 0.625i + 1.625j

d' = 0.625i + 0.375j

2)

The rates of linear deformation in the x and y directions are given by the formulas:

Dx = ∂u/∂x = A

Dy = ∂v/∂y = -A

where u and v are the x and y components of the velocity field, respectively.

Substituting A = 0.3^(-1), we get:

Dx = 3.333 m/s

Dy = -3.333 m/s

Therefore, the rate of deformation is the same in both the x and y directions, but with opposite signs.

The area of the square abcd at t=0 is:

Area(abcd) = |(b-a) x (c-a)| = |1i + j| x |i + j| = 1

3)

The area of the square a'b'c'd' at t=1.5 seconds is:

Area(a'b'c'd') = |(b'-a') x (c'-a')| = |0.75i - 1.25j| x |0.75i + 0.25j| = 0.5625

Therefore, the area of the square has decreased from 1 square meter to 0.5625 square meters, which means that the fluid is undergoing compression in both the x and y directions.

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Heat energy is the known to be a product of the movement of tiny particles called atoms, molecules or ions. The true statement is by Technician A.

Internal combustion engine is dependent on the heat of combustion so as to make torque to move the vehicle and power the system.

A lot of heat made during combustion is not often used productively and therefore need to be removed to avoid overheating of the engine.

The heat energy that is not used for is wasted in three ways: They are:

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