two technicians are describing how an air-conditioning system gets rid of the heat. Technician A says that heat always flows from the hotter to the colder object. Technician B says that as refrigerant evaporates, it absorbs heat as it changes from a liquid to a gas. which technician is correct?

Answers

Answer 1

Based on the information provided by these technicians, both of them are correct.

How does heat flow?

According to heating, ventilation, and air conditioning (HVAC), heat in an air-conditioning system generally flows from the hotter object to the colder object.

As the refrigerant evaporates in a small radiator-type unit (evaporator), it absorbs heat as it changes phase from liquid to gas. Also, as the heat is being absorbed by the refrigerant, the small radiator-type unit (evaporator) becomes cold.

In conclusion, we can logically deduce that both of them are correct.

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Related Questions

I will rate 5 stars/brainliest if you help me!!! A company produces A, B, and C and can sell these products in unlimited quantities at the following unit prices: A, $10; B, $56; C, $100. Producing a unit of A requires 1 hour of labor; a unit of B, 2 hours of labor plus 2 units of A; and a unit of C, 3 hours of labor plus 1 unit of B. Any A that is used to produce B cannot be sold. Similarly, any B that is used to produce C cannot be sold. A total of 40 hours of labor are available. Formulate an LP to maximize the company’s revenues. (Please solve the LP with Lindo or Excel).

Answers

Answer: 0

Explanation: i need to add it up to get what u want

True or false for the 4 questions?

Answers

Answer:

true, false, true, true

Explanation:

Which of the following describes the purpose of project management?

Answers

Answer:

The purpose of project management is to help you foresee the risks and challenges that could derail the completion of a project. It applies proven methodologies and uses current software tools so you can plan, control, and monitor people, processes, and other components needed to make your project a success.

Q2- The figure below shows a closed tank holding water and oil. Air pressure is P kPa is
the air pressure above the oil. Calculate the pressure at the bottom of the container?
What is the pressure at the bottom of the container?
Use your last three digits of your ID the pressure values
0.25 m
Air
0.50 m
Oil
(sg = 0,85)
0,75 m
Water
18 m
1.2 m
ID:306

Answers

Answer:

The figure below shows a closed tank holding water and oil. Air pressure is P kPa is the air pressure above the oil. Calculate the pressure at the bottom of the container? What is the pressure at the bottom of the container? Use your last three digits of your ID the pressure values 355 0.25 Air 0.50 m O. isg 0.85 0.75 m Wat 1.8m 1.2m

Answer:

the air pressure above the oil. Calculate the pressure at the bottom of the container?

What is the pressure at the bottom of the container?

Use your last three digits of your ID the pressure values

0.25 m

Air

0.50 m

Oil

(sg = 0,85)

0,75 m

Water

18 m

1.2 m

ID:306

Explanation:

the air pressure above the oil. Calculate the pressure at the bottom of the container?

What is the pressure at the bottom of the container?

Use your last three digits of your ID the pressure values

0.25 m

Air

0.50 m

Oil

(sg = 0,85)

0,75 m

Water

18 m

1.2 m

ID:306

Select the correct answer.
Which responsibility belongs to the Coast Guard?
ОА.
to save people promptly in case of earthquakes through efficient disaster management
OB.
to provide national security through offensive and defensive combat techniques via the airways
O C.
to take part in wars under the US Navy
OD.
to offer law and order to the public through peaceful protests and actions

Answers

Answer:

The Coast Guard is the nation's oldest continuous seagoing service with responsibilities including search and rescue (SAR), maritime law enforcement (MLE), aids to navigation (ATON), ice breaking, environmental protection, port security and military readiness.

Explanation:

there

component of earthing and reasons why each material is being used

Answers

Answer:

The components of earthing are Earth electrode, Main earthing terminals/bars, Earthing conductors, Protective conductors Equipontential binding conductors and Electrically independent electrodes.

Hello,
please the answers should be for A-LEVEL students.
thank you very much

Answers

Answer:

  see attached for a diagram and loads

Explanation:

The mass of the man represents a downward force of ...

  F = ma

  F = (85 kg)(9.8 m/s²) = 833 N

at a point 1.5 meters from one support. In the attached diagram, the man is standing left of center, so is 1.5 m from the left support, and 4.9 m from the right support.

The mass of the beam represents a downward force of ...

  F = (15 kg)(9.8 m/s²) = 147 N

This is effectively modeled by a force acting on the center of the beam, 3.2 m from each support. The distance between supports is 6.8 -2(0.2) = 6.4 m.

The net torque on the beam is zero. This means we can sum the torques at either support and set them to zero. If we let s1 represent the upward force supplied by the left pillar, and s2 the upward force supplied by the right pillar, the two torque equations are ...

  torque = force × distance

  CW torque about the left pillar: 833×1.5 +147×3.2 -s2×6.4 = 0

     s2 = 1719.9/6.4 ≈ 268.7 . . . newtons

  CCW torque about the right pillar: -s1×6.4 +833×4.9 +147×3.2 = 0

     s1 = 4552.1/6.4 ≈ 711.3 . . . newtons

The magnitudes of the loads carried by the supports are 268.7 N and 711.3 N.

__

Check

For static equilibrium, the sum of upward forces must match the sum of downward forces:

  268.7 +711.3 = 980 . . . . newtons (total of upward forces)

  883 +147 = 980 . . . . . . . newtons (total of downward forces)

It is illegal to improperly dispose of antifreeze.
True
False

Answers

Answer: True

Explanation:

It is illegal to dispose of antifreeze in the trash, ground, or storm drains.

Answer:

true

Explanation:

How many volts of alternating current passes through the electrolytic capacitor

Answers

Answer:

The capacitor in its conventional form is constructed from two electrically conducting metallic plates facing each other and separated by an electrically insulating medium.

Describe a project in which you would use a pleater, ruffling foot, or gathering foot. Explain each of these tools and choose the one that might be necessary for the project you are describing.(FASHION DESIGN)

Answers

A project that requires using a pleater, a ruffling foot, or a gathering foot is the creation of a dress.

A pleater, a ruffling foot, and a gathering foot are all accessories for sewing machines or machines themselves that help fashion designers to give the fabric a different shape or texture, and therefore create unique pieces.

Pleater: This tool includes multiple needles that go through the fabric to create multiple pleatsRuffling foot: This is usually an accessory for sewing machines to create rufflesGathering foot: This tool is used to create gathers in fabric, these differ from ruffles because they are smaller and more subtle than ruffles

All of the tools can be used in the creation of a dress, for example, a pleater can be used in the top section of the dress to give it a nice texture and make it different from the skirt. In the same way, others such as the ruffling foot or the gathering foot can be used in the sleeves of the dress.

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Technician A says that a diode only allows current
flow in one direction? Technician B says a diode
simply regulates current flow in both directions.
(A) A only.
(B) B only
(C) Both A and B.
A
(D) Neither A nor B.

Answers

Answer:

c

Explanation:

because it depends on the base whether pnp or npn

An enclosed parts washer does not wash, rinse, and dry.
True
False

Answers

Answer:

false cause a parts washer doesn't wash , rinse or dry

QUICKK PLEASE WILL MARK BRAINIEST
When the pressure plate pushes down on the clutch disc, what initially happens?

Answers

Answer:

it gives pressure this makes it stay where it has to be and lock it

Explanation:

yan llng alam ko

why exam is important in our life

Answers

Answer:

I am also finding this ans but it is difficult

Explanation:

well to live in this world exam r important

we have to come with every difficulty

so that we can learn

Explanation:

Exam gives the result that what you learnt

And for Education exam is main

without Education everything is very difficult

Liquid water flows isothermally at 20°C through a one-inlet, one-exit duct operating at steady state. The duct’s inlet and exit diameters are 0.02 m and 0.1 m, respectively. At the inlet, the velocity is 10 m/s and pressure is 1 bar. At the exit, determine the mass flow rate, in kg/s, and velocity, in m/s.

Answers

The continuity equation allows finding the results for the speed and flow of the outlet pipe are:

 Q = 3.14 kg / s  v₂ = 0.4 m / s

Fluid mechanics studies the movement and fluid dynamics, it is described  by two fundamental relationships:

The Bernoulli equation that an expression of the energy conservation  

          [tex]P_1 + \frac{1}{2} \rho v_1^2 + \rho g y_1 = P_2 + \frac{1}{2} \rho v_2^2 + \rho g y_2[/tex]  

Where P is the pressure, v the velocity, y the height, the subscripts are two selected points of interest in the pipe.

The continuity equation which is an expression that our principle of mass conservation for fluids

            [tex]A_1v_1 = A_2 v_2[/tex]

Where A₁ and A₂ is the area of ​​the inlet and outlet pipes and v₁ and v₂ are the velocities of the fluid at the inlet and outlet

They indicate the inlet and outlet diameters of the pipe are d₁ = 0.02 m and d₂ = 0.1 m, the inlet velocity v₁ = 10 m / s, with the continuity equation let's find the outlet velocity

         [tex]v_2 = ( \frac{A_1}{A_2} )^2 \ v_1[/tex]  

the cross section of the tavern is

        A = [tex]\pi r^2 = \pi \ d^2/4[/tex]  

Where r is the radius and d is the diameter

Let's substitutes

         

        [tex]v_2 = (\frac{d_1}{d_2} )^2 \ v_1[/tex]  

        [tex]v_2 = (\frac{0.02}{0.1} )^2 \ 10[/tex]  

        v₂ = 0.4 m / s

The flow  (Q) is defined as the amount of liquid that passes through the section of the pipe per unit of time, we can see that this is the same conservation of mass, therefore

        Q = A v

        Q = [tex]\pi \frac{d_2^2}{4} \ v_2[/tex]π d2 ^ 2 v2

        Q = [tex]\pi \ \frac{0.1^2}{4} \ 0.4[/tex]

        Q = 3.14 10⁻³ m ^ 3 / s

As the transported liquid is water

         1 liter water = 1 kg

Consequently

         1 m³ = 1000 liter = 1000 kg of water

Let's reduce the flow

         Q = 3.14 10⁻³ m³/s ( [tex]\frac{10^3 kg}{1 m^3}[/tex] )

         Q = 3.14 kg / s

In conclusion using the continuity equation we can find the results for the speed and flow of the outlet pipe are:

 v₂ = 0.4 m / s  Q = 3.14 kg / s

Learn more here: brainly.com/question/14747327

What is the number for account receivable?​

Answers

Answer:

113 or 1-1300

Explanation:

Account receivable => Current Assets (11)

For receivable => 3

So, the number for account receivable is 113

Answer:

113

Maybe thats the answer for this question

Income tax payable is included in the account...​

Answers

Answer:

Current Liabilities

Explanation:

Accounts of Current Liabilities

Account PayableExpense PayableTax OutcomeTax IncomeIncome tax payable

Answer:

Current Liabilities

Maybe

1. types of ecosystem ?
2. explain each ecosystem

Answers

ecosystem is a nature,so take care of it

Tires can be recycled instead of thrown out.
True
False

Answers

Answer:

True :)

Explanation:

You can recycle it! Tire recycling is the most practical and environment-friendly way of disposing of old and worn-out tires. Due to their inherent durability, large volume and environment and health risks, tires are one of the most problematic sources of solid wastes.

Hope it helped have a nice day! :)

Q.1 I am Brainliest ok what you are ​

Answers

Answer:

A hotdog :P

And potato :3

Chọn dữ liệu phù hợp và biểu diễn chúng dưới dạng biểu đồ, từ đó cho biết 3 yếu tố
mà người dùng xem xét nhiều nhất khi mua một chiếc tablet.

Answers

Answer:

Please explain it in English so that i can help you or you need someone who can speak Vietnam help you

If you answer the whole question and show your work/coding I will rate 5 stars/brainliest!!! Walnut Orchard has two farms that grow wheat and corn. Because of different soil conditions, there are differences in the yields and costs of growing crops on the two farms. The yields and costs are shown in the following table. Each farm has 100 acres available for cultivation. 11,000 bushels of wheat and 7,000 bushels of corn must be grown. Please have an LP model to minimize the total cost while meeting the demand and solve it with Lindo or Excel. You need to have all parts of a model: notation, objective function, constraints, and sign restrictions.

Answers

Answer: 18,100

Explanation: two farms that grow wheat and corn.

4.
must be stored in an approved steel cabinet.
a. Gas cylinders
b. Cleaning chemicals
c. Welding rods
d. Leathers
Answer:

Answers

A gas cylinders be cleaning chemical see wedding rods de leathers must be stored in and approve steel cabinet

the weight of the frame, body, and engine is supported by the springs is called what?

Answers

it is called supported mass :)

One: the Church is one. This means that it is a single, united and global Church which has its basis in Christ Jesus. Holy: the Church is holy, because it is the Body of Christ with Jesus as the head. ... Apostolic: the origins and beliefs of the Church started out with the apostles at Pentecost.

Answers

Answer:

amen?...............

What is the latest space exploration rocket?

Answers

Answer:

NASA's Space Launch System will be the most powerful rocket we've ever built. When completed, SLS will enable astronauts to begin their journey to explore destinations far into the solar system.

source of energy in wind power

Answers

The energy in which wind is used to generate electricity is known as wind energy. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power is then used for various purposes. Wind energy is a free and renewable resource. It is a clean and non-polluting source of energy.

The oil system is:
The pistons and chambers
Anything in the engine that motor oil touches
The camshaft and lifters
The dipstick

Answers

Answer:

From the main bearings, the oil passes through feed-holes into drilled passages in the crankshaft and on to the big-end bearings of the connecting rod.

What are the coventional representative of automation

Answers

Answer:

ere el merjor 5iyer

Explanation:

yyhh espero ayuder 8 mucho 666

___________ are used in an automotive shop and can be harmful to the environment if not disposed of properly.
Oil filters
Fluorescent lamps
Mercury-containing lamps
All of the above

Answers

Answer: D all above

Explanation:

Jus done it

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