An air conditioner removes heat steadily from a house at a rate of 850 kJ/min while drawing electric power at a rate of 10 kW. Determine: (a) the COP of this air conditioner. (b) the rate of heat transfer (kJ/min) to the outside air.

Answer:

brake drums or rotors

Explanation:

When the brake pedal is pressed, hydraulic pressure is applied to the brake system which in turn forces the brake shoes to press against the drum or rotor, slowing down or stopping the car.

Brake shoes are a type of braking system used in some older vehicles and heavy-duty applications. They are typically made of metal and lined with friction material, such as asbestos or ceramic, which provides the necessary stopping force. Brake shoes stop a car by exerting pressure on the brake drum or rotor, which is located behind the wheel and rotates with the wheel. When the driver applies the brake pedal, the brake shoes are pushed against the drum or rotor, creating friction and slowing down the wheel. This slows down the car as a whole, allowing it to come to a stop. Proper maintenance and regular replacement of brake shoes are crucial for safe and reliable braking performance.

Learn more about Brakes at:

https://brainly.com/question/14318250

#SPJ11

Answer:

Zero

Explanation:

For this, it is necessary to use the  the Hagen-Poiseuille equation, which is a law of physics that describes an incompressible fluid of low viscosity through a tube of constant circular cross-section.

By derivating the Pressure over x it becomes zero

\(\frac{dP}{dx} = 0\)

Health and safety standards in the wood processing industry are crucial for the safety and protection of workers in the industry. They must follow strict procedures to ensure that they are not exposed to harmful elements, and that their health and well-being are not compromised.

Following are the two points related to the importance of Health and Safety Standards in the wood processing industry.

In conclusion, health and safety standards in the wood processing industry are essential for the protection of workers and the success of companies in the industry. By prioritizing employee safety and compliance with regulations, employers can minimize the risks associated with wood processing and maintain a safe and healthy work environment.

To learn more about wood processing, visit:

https://brainly.com/question/17233203

#SPJ11

Answer:

control loop unit

Explanation:

Edmentum/Plato

Answer:

That's not true, if your house is burning down, leave. Let the firefighters do their jobs.

Explanation:

Answer:

The appropriate answer will be "2353.8 K". A further solution is given below.

Explanation:

The given values are:

Ultimate capacity,

= 1700kN

Resistance factor,

F.S = 0.65

According to the the LRFD, the allowable bearing pressure will be:

⇒ \(Pallo w = \phi_c\times \frac{Pn}{F.S}\)

On substituting the values, we get

⇒             \(=0.9\times \frac{1700}{0.65}\)

⇒             \(=2353.8 \ K\)

According to the the ASD, the allowable bearing pressure will be:

⇒ \(Pallow=\frac{Pn}{\Omega \times F.S}\)

On substituting the values, we get

⇒             \(=\frac{1700}{1.67\times 0.65}\)

⇒             \(= \frac{1700}{1.0855}\)

⇒             \(=1845.35 \ K\)

Where N₁ and N₂ are the number of mole of ga at the inlet and tank preure, respectively, P₁ and P₂ are the inlet and tank preure, V is the volume of the tank, R is the univeral ga conant and T i the temperture of the ga in the tank.

The equation provided above describes the change in the number of moles of gas in a vessel of constant volume and temperature.

This equation states that the difference between the number of moles of gas at the inlet and the tank pressure is proportional to the difference in the inlet pressure and tank pressure, and also inversely proportional to the temperature and the universal gas constant.

This equation allows us to calculate how much gas is present in a vessel at a given pressure and temperature. This equation also allows us to understand how much gas is added or removed from the vessel depending on the inlet and tank pressure.

Learn more about Number of mole: https://brainly.com/question/29242554

#SPJ4

Answer:

fan

Explanation:

Answer:

1.75 kW

$0.137 kWh

4.61 kW

$3.16 therm

Explanation:

Utilized power input of the burner is

P(ui) = total power input * efficiency

P(ui) = 2400 W * 0.73

P(ui) = 1752 W or 1.75 kW

Unit cost of utilized energy is

C(ui) = Unit cost of electricity/efficiency

C(ui) = $0.1 / 0.73 kWh

C(ui) = $0.137 kWh

Power input to the gas burner is

P(gi) = Utilized power input of the burner / efficiency of the burner

P(gi) = 1.75 / 0.38

P(gi) = 4.61 kW

Unit cost of utilized energy is

C(gi) = Unit cost of gas /efficiency

C(gi) = $1.2 / 0.38 kWh

C(gi) = $3.16 therm

A NAAQS exceedance refers to temporary levels exceeding the established standard, while a NAAQS violation indicates a persistent or recurring non-compliance with the standard.

NAAQS (National Ambient Air Quality Standard), set by regulatory agencies to protect public health and the environment, establish maximum allowable levels for pollutants in the ambient air. The terms "exceedance" and "violation" are used to describe different scenarios of non-compliance:

1. NAAQS Exceedance: A NAAQS exceedance refers to a temporary event where pollutant concentrations surpass the standard. It may occur due to short-term spikes in pollution levels caused by localized sources, unusual weather conditions, or specific events. Exceedances are typically evaluated and addressed on a case-by-case basis and may not immediately trigger regulatory actions.

2. NAAQS Violation: A NAAQS violation signifies a sustained or recurring non-compliance with the established standard. It occurs when pollutant levels consistently exceed the NAAQS over a specified timeframe, such as an averaging period (e.g., 24 hours or annual). Violations trigger regulatory consequences and the implementation of corrective measures, such as emission controls, enforcement actions, or mandated pollution reduction plans.

Differentiating between exceedances and violations is crucial in regulatory decision-making and prioritizing resources for air quality management. While exceedances may warrant investigation and localized actions, violations indicate the need for more significant and sustained efforts to achieve and maintain compliance with the NAAQS.

Learn more about NAAQS exceedance here:

brainly.com/question/33622810

#SPJ11

Answer:

Explanation:

Given that:

From process 1 → 2

\(P_1 = 10 bar \\ \\ V_1 = 1 m^3 \\ \\ V_2 = 4 m^3\)

\(PV^{1.5} = \ constant\)

\(\gamma = 1.5\)

Process 2 → 3

The volume is constant i.e \(V_2 =V_3 = 4m^3\)

\(P_3 = 10 \ bar\)

Process 3 → 1

P = constant  i.e the compression from state 1

Now, to start with 1 → 2

\(P_1V_1^{1.5} = P_2V_2^{1.5}\)

\(P_2 = P_1 (\dfrac{V_1}{V_2})^{1.5}\)

\(P_2 = 10 \times (\dfrac{1}{4})^{1.5}\)

\(P_2 =1.25\)

The work-done for the process  1 → 2 through adiabatic expansion is:

\(W = \dfrac{1}{1-\gamma}[P_2V_2-P_1V_1]\)

We know that 1 bar = \(10^5 \ N/m^2\)

∴

\(W = \dfrac{1}{1-1.5}[1.25 \times 10^5 \times 4- 10 \times 10^5 \times 1]\)

\(W =1000000 \ J\)

\(W_{1 \to 2} = 1000 kJ\)

For process 2 → 3

Since V is constant

Thus:

W = PΔV = 0

\(W_{2 \to 3} = 0\)

For process 3 → 1

W = PΔV

\(W _{3 \to 1} = P_3(V_1-V_3)\)

\(W _{3 \to 1} = 10 \times 10^5 (1-4)\)

\(W _{3 \to 1} = 10 \times 10^5 (-3)\)

\(W _{3 \to 1} = -3 \times 10^6 \ J\)

\(W _{3 \to 1} = -3000 \ kJ\)

The net work-done now  for the entire system is :

\(W_{net} = W_{1 \to 2} + W_{2 \to 3 } + W_{ 3 \to 1 }\)

\(W_{net} = (1000 + 0 + (-3000)) \ kJ\)

\(W_{net} =-2000 \ kJ\)

The sketch of the processes on p -V coordinates can be found in the image attached below.

A) The work done for each process are :

B) The net work for the cycle = -2000 kJ

Given Data :

For process (1 -2)      For process ( 2 - 3 )       process ( 3 - 1 )

P₁ = 10 bar                   P₃ = 10 bar                  constant pressure compression

V₁ = 1 m³                  constant volume heating

V₂ = 4 m³

PV\(^{1.5}\) = constant

A) Determine work done for each process

Calculate work done for process (1 - 2)

W₁ ₋ ₂ = \(\frac{P_{1}V_{1} - P_{2}V_{2} }{n -1 }\) * 100

         = [ ( 10*1 ) - ( 1.25 * 4 ) ] / 1.5 - 1

         = [ 10 - 5 ] / 0.5

         = 10 * 100 = 1000 kJ

Calculate work done for process ( 2-3 )

given that there is constant volume heating

W₂₋₃ = 0 kJ

Calculate work done for process ( 3-1)

W₃₋₁ = P ( Δ V )     given that p = constant

       = 10 * 100 ( -3 )

       = - 3000 kJ

B) The net work for the cycle

W₁ ₋ ₂  +  W₂₋₃  + W₃₋₁

= 1000 kJ  + 0 kJ  +  - 3000 kJ

= - 2000 kJ

Hence we can conclude that the ) The work done for each process are :

and The net work for the cycle = -2000 kJ

Learn more about piston-cylinder assembly : https://brainly.com/question/13739421

Attached below is the P-V sketch of the process

Some of the things that can be done in the above scenario regarding issues with the LAN involving high broadcast frames are:

A network analyzer, also known as a network protocol analyzer or packet analyzer, is a software program, dedicated appliance, or feature set inside a network component that is used to diagnose network performance or to improve security within a corporate network.

A network analyzer is a tool for monitoring and analyzing network traffic in real time. Using a network analyzer, you may locate the source of the broadcast traffic and take appropriate action.

In the preceding example, your network architecture may not be optimum for the amount of switches and devices you have. To lower the amount of broadcast frames, you may need to install extra switches or reorganize your present switches.

Learn more about Network Analyzer:
https://brainly.com/question/29833406?
#SPJ1

Answer:

Anthropology is the systematic study of humanity, with the goal of understanding our evolutionary origins, our distinctiveness as a species, and the great diversity in our forms of social existence across the world and through time. The focus of Anthropology is on understanding both our shared humanity and diversity, and engaging with diverse ways of being in the world.

Anthropology is divided into three subfields: sociocultural, biological, and archaeology.

Explanation:

Have a great day!

The more the gas is compressed, the less volume it takes up at a given pressure. There is a direct correlation between volume and temperature.

Many everyday facts allow you to observe this behaviour of gases, such as the fact that the volume of trapped air in a syringe decreases with pressure when you press down on the plunger while covering the exit hole. Boyle's law for ideal gases, which states that PV = constant and that P is inversely linked to volume, can also be used to demonstrate this. The average density will drop, making the submarine float since the volume of the tanks and the submarine isn't changing (stay constant) and the object's mass (the submarine with tanks) is decreasing (due to the discharge of a significant amount of air).

Learn more about Boyle's law for ideal gases here:

https://brainly.com/question/314395

#SPJ4

Based on the engineering analysis, the relationship between the voltages of the output and adjust pins of LM1117 when in normal operation is "the LM1117 adjustable version establishes a 1.25V reference voltage, (VREF) between the output and the adjust terminal."

The LM1117 generally has a 1.2V at 800mA of load current.

The LM1117 is known to be a progression of low dropout linear voltage regulators. It is adjustable and be assigned between the output voltage of 1.25 to 13.8 V using just two external resistors.

Hence, in this case, it is concluded that the correct answer is "the LM1117 adjustable version establishes a 1.25V reference voltage, (VREF), between the output and the adjust terminal.

Learn more here: https://brainly.com/question/25646477

A contractor has a job that should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00.

liquidated damages.(a) How many more men should the contractor add so that he would complete the work on time?In the first case, we see that the contractor already has 80 men and they are working for 130 days to complete the job. So, we can use the following formula to determine the additional number of workers required to finish the work in 100 days.

b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine Let’s assume that the contractor adds 440 workers, of which 2 are paid ₱180.00 a day and the rest are paid ₱120.00 a day.

The total cost of the new workers is, therefore, ₱9600.00 + ₱4500.00 + ₱49800.00 = ₱63,900.00.The cost of liquidated damages would be calculated as follows:  $$LD = (130-100) \cdot 500 = ₱15,000.00$$.

Therefore, the contractor would save money if he employs more men and not pays the fine. The contractor’s savings would be:$$Savings = LD - Additional cost$$$$= 15000.00 - 63900.00 $$$$= -48900.00$$

Thus, we can see that the contractor would save ₱48,900.00 by employing more men and not paying the fine.

To know more about contractor visit:

https://brainly.com/question/31457618

#SPJ11

Focus primarily on highly precise specifics of what Cornell offers and how it matches with your interests and values. You can regard this as a "Why us?" essay with some optional "Why major" spice.

To learn more about essay refer :

https://brainly.com/question/94727

#SPJ4

The area of the cross-section is reduced by a factor of four when the tube's diameter is cut in half, connections  which results in a two-fold reduction in the volume flow rate.

The volume flow rate through a tube with a uniform cross sectional area and a fluid moving at a constant rate is equal to the cross-sectional area times the fluid's velocity. As a result, when the tube's diameter is cut in half, the cross-sectional area is decreased by a factor of four, which lowers the volume flow rate by a factor of two. All fluids, including an ideal fluid like water, have this effect. The principle of continuity, which stipulates that a fluid's volume flow rate must remain constant along a conduit provided that the fluid is incompressible and there are no sources or sinks, provides an explanation for this behavior.

Learn more about connections here-

brainly.com/question/14327370

#SPJ4

It is impossible to guess what the output of the provided bash script will be without first understanding its contents and its goals.

Reviewing the source code of a bash script is required in order to make an accurate prediction regarding the output produced by the script. It is unfortunate that the script itself has not been provided, as a result it is hard to establish how the script will behave or what output it will produce.

Within a Unix or Linux command line environment, bash scripts are utilised for the purpose of automating certain operations. They are able to handle a wide variety of tasks, including the management of systems, processing of data, and manipulation of files, among other things. The output of the script is going to be determined by the particular instructions, functions, and logic that are incorporated into it.

It is not possible to generate an output if you do not have access to the script's source code. If you would be willing to share the details of the bash script with me, I will be able to examine it and give you a more precise response. This would allow me to provide a more complete answer or support.

Learn more about bash script here:

https://brainly.com/question/30880900

#SPJ11

Large aircraft, turbojet-powered multiengine civil aircraft, and fractional ownership program aircraft are all subject to the operating regulations outlined in part 91, subpart F. Operations needed to comply with requirements under: are not subject to the rules of this component : Part 121, 125, 129, 135, and 137,

An air-breathing jet engine, the turbojet is frequently found in airplanes. It is made up of a gas turbine and a nozzle for propulsion. The gas turbine has a compressor, a combustion chamber, a turbine, and an air inlet with inlet guiding vanes (that drives the compressor). Fuel combustion in the combustion chamber heats the compressed air from the compressor before allowing it to expand via the turbine. The propelling nozzle expands the turbine exhaust, which is subsequently accelerated to a high speed to provide push. In the late 1930s, two engineers, Hans von Ohain in Germany and Frank Whittle in the United Kingdom, independently developed the idea into workable engines. Turbojets are only helpful in aviation because of their poor efficiency at low vehicle speeds. In rare instances, turbojet engines have been utilized to power vehicles other than airplanes, usually in an effort to break land speed records. When a vehicle is "turbine-powered," it most often means it has a turboshaft engine, a modified gas turbine engine that uses a second turbine to power a revolving output shaft. These are typical in hovercrafts and helos. On Concorde and the longer-range versions of the TU-144, which had to spend a lot of time travelling supersonically, turbojets were used.

Learn more about turbojet here

https://brainly.com/question/807662

#SPJ4

The critical buckling load of an ideal column of circular cross section can be reduced by increasing the diameter of the column.

The critical load is known to be that factor that is labeled the greatest load that is one which is unable to cause lateral deflection (buckling).

Note that For loads greater than the critical load, the column will tend to decrease laterally. The critical load is known to be one that puts the column in what we call the state of an unstable form of equilibrium.

The critical buckling load is based  on the shape and dimensions of beam section that is said to have constant cross sectional area.

Hence, The critical buckling load of an ideal column of circular cross section can be reduced by increasing the diameter of the column.

Learn more about ideal column from

https://brainly.com/question/1788884

#SPJ1

The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns.

What is Force?
A force is an effect that can alter an object's motion according to physics. A force can cause an object with mass to accelerate when it changes its velocity, for as when it moves away from rest. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction. It is calculated using the newton SI unit (N). Force is denoted by the letter F. (formerly P).
The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation.



The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns. By using the section, the force in member BC can be determined. By using the equation, the force in member FG can be determined.

To learn more about force
https://brainly.com/question/12970081
#SPJ4

The technique used to construct the roof over the tomb chamber in the Great Pyramid is known as corbelling.

This method involves placing successive layers of stone blocks in a slightly inward sloping pattern until the two walls meet at the top. This creates a self-supporting structure that does not require any additional supports.

In the case of the Great Pyramid, the roof was made up of a series of gabled limestone beams that were corbelled in place. These beams were then covered with flat limestone slabs to create a smooth surface. This roof structure is still intact today, despite the thousands of years that have passed since its construction.

The use of corbelling was a common technique used in many ancient cultures, including the Maya, the Inca, and the Celts.

It allowed for the construction of large, impressive structures without the need for complex engineering or heavy equipment. Instead, skilled workers could use simple tools and brute force to create these incredible feats of architecture.

For more such questions on corbelling, click on:

https://brainly.com/question/29488385

#SPJ11

Answer:

a.) Time = 17.13 seconds

b.) 31.88 m

c.) V = 11.18 m/s

d.) V = 7.1 m/s

Explanation:

The initial velocity U of the automobile is 15.65 m/s.

 At the instant that the two vehicles are abreast of each other, the police car starts to pursue the automobile with initial velocity U = 0 at a constant acceleration of 1.96 m/s². Because the police is starting from rest.

For the automobile, let us use first equation of motion

V = U - at.

Acceleration a is negative since it is decelerating with a = 3.05 m/s² . And

V = 0.

Substitute U and a into the formula

0 = 15.65 - 3.05t

15.65 = 3.05t

t = 15.65/3.05

t = 5.13 seconds

But the motorist noticed the police car in his rear view mirror 12 s after the police car started the pursuit and applied his brakes and decelerates at 3.05 m/s².

The total time required for the police car to overtake the automobile will be

12 + 5.13 = 17.13 seconds.

b.) Using the third equation of motion formula for the police car at V = 11.18 m/s and a = 1.96 m/s²

V^2 = U^2 + 2aS

Where S = distance travelled.

Substitute V and a into the formula

11.18^2 = 0 + 2 × 1.96 ×S

124.99 = 3.92S

S = 124.99/3.92

S = 31.88 m

c.) The speed of the police car at the time it overtakes the automobile will be in line with the speed zone which is 11.18 m/s

d.) That will be the final velocity V of the automobile car.

We will use third equation of motion to solve that.

V^2 = U^2 + 2as

V^2 = 15.65^2 - 2 × 3.05 × 31.88

V^2 = 244.9225 - 194.468

V = sqrt( 50.4545)

V = 7.1 m/s

The overhead service conductors from the last pole to the point connecting them to the service entrance conductors at the building are called service drop conductors.

What are overhead service conductors?

Conductors for overhead service entrances are clamped onto service masts using porcelain or other nonmetallic insulators. Screw-in porcelain or other comparable nonmetallic insulators are used to secure overhead service-entrance conductors that terminate at the side of a building, underneath a roof eave, or on the roof fascia board.

What is service drop conductors?

The electrical cables that run from the utility pole, pedestal, or ground-mounted transformer to the home are known as the overhead service drop or subterranean service lateral. The utility company will always handle modifications to the service drop, and most changes cost money that belongs to the consumer.

Learn more about overhead service conductors: https://brainly.com/question/14681208

#SPJ4

A bubble in front of a clock input of a flip-flop represents an inverted clock signal, also known as a "negative edge-triggered" or "falling edge-triggered" flip-flop.

A bubble in front of a clock input of a flip-flop indicates an active low signal.

Know more about the flip-flop means

https://brainly.com/question/30384533

#SPJ11

Answer:

I dont think you can blur text in google docs

Closed cell foam application would be best suited for a flammable liquid spill near a building wall.

Flammable materials are materials that are easily ignited and can quickly burn in the presence of an open flame or spark. Common items that are considered flammable include gasoline, wood, paper, plastic, rubber, and some fabrics. Flammable materials often have a flash point, which is the lowest temperature at which they will combust. In addition, items such as paint, paint thinner, and aerosol cans can also be classified as flammable. It is important to store these materials in designated areas away from open flames or other heat sources.

To know more about Flammable
https://brainly.com/question/28222891
#SPJ4

The statement "(210-196) There is no mandatory rule in the NEC limiting the voltage drop on conductors, but the Code recommends that we consider its effect" is true because the National Electrical Code (NEC) does not have a mandatory rule for limiting voltage drop on conductors, but it does recommend considering its effect to ensure efficient and safe electrical installations.

The National Electrical Code (NEC) is a standard that provides guidelines and requirements for safe electrical installations in the United States. While the NEC provides rules and regulations on many aspects of electrical installations, it does not mandate a specific limit for voltage drop on conductors.

Voltage drop refers to the reduction in voltage that occurs as electrical current flows through a conductor, due to its resistance. Excessive voltage drop can result in reduced performance of electrical equipment and appliances, as well as increased energy consumption.

Learn more about NEC limiting: https://brainly.com/question/30323573

#SPJ11