P2: Given the signal m(t) = 3 cos[200nt] + cos [400nt], with carrier signal c(t) = 5 cos [3000mt] find: a) The bandwidth of the FM signal with kf= 10 [rad/s/V] b) The Power of the FM signal. c) Write the expression of the FM signal.

Answer:

a) the  rate of cooling provided is 18604.8 Btu/h

b) the rate of exergy destruction in the evaporator is 0.46 Btu/Ibm

c) the second-law efficiency of the evaporator is 37.39%

Explanation:

Given that;

Temperature of sink TL = 50°F = 510 R

Temperature at evaporator inlet TI = 10°F = 470 R

mass flow rate m" = 0.08 lbm/s

quality of refrigerant at evaporator inlet x1 = 0.3

quality of refrigerant at evaporator exit x2 = 1.0

T₀ = 77°F = 537 R

h1 = 107.5 Btu/lbm

s1 = 0.2851 Btu/lbm·R,

h2 = 172.1 Btu/ lbm,

s2 = 0.4225 Btu/lbm·R.

a) rate of cooling provided, in Btu/h.

QL = m"( h2 - h1)

we substitute

QL = 0.08( 172.1 - 107.5

= 0.08 × 64.6

= 5.168 Btu/s

we convert to Btu/h

5.168 × 60 × 60

QL = 18604.8 Btu/h

Therefore the  rate of cooling provided is 18604.8 Btu/h

b) The rate of exergy destruction in the evaporator

Entropy generation can be expressed as;

S_gen = m"(s2 - s1) - QL/TL

so we substitute

S_gen = 0.08( 0.4225 -  0.2851  ) - 5.168 / 510

= 0.010992 - 0.01013

S_gen = 0.00086 Btu/ibm.R

now the energy destroyed expressed as;

X_dest = T₀ × S_gen

so

X_dest =  537 × 0.00086

X_dest = 0.46 Btu/Ibm

Therefore the rate of exergy destruction in the evaporator is 0.46 Btu/Ibm

c)  The second-law efficiency of the evaporator.

Energy expended is expressed as;

X_exp = m"(h1 - h2) - m"T₀(s1 - s2)

we substitute

= 0.08( 107.5 - 172.1 ) - [0.08 × 537 ( 0.2851 - 0.4225 )

= -5.168 - [ - 5.9027)

= -5.168 + 5.9027

= 0.7347 Btu/s

Now second law efficiency is expressed as;

nH = 1 - (X_dest / X_esp)

= 1 - ( 0.46 / 0.7347 )

= 1 - 0.6261

= 0.3739

nH = 37.39%

Therefore the second-law efficiency of the evaporator is 37.39%

Answer:

Talcum powder!

Explanation:

How to find the source of an oil leak:

This method simply involves using Talcum Powder as a visual aid to help pinpoint the location of an oil leak,

so you use Talcum powder for small oil leak :]

Have a wonderful day!

Explanation:

Dry air doesn't contain water vapor .

Answer:

200V

Explanation:

I = 5A

R = 40Ω

V = IR = (5)(40) = 200V

Answer:

3 m/s²

Explanation:

Acceleration is calculated as :

a= Δv/ t

where ;

Δv = change in velocity

Δv = 45 - 0 = 45  m/s

t= 15 s

a= 45 /15

a= 3 m/s²

Answer:

I can provide some general guidance on how to approach answering the question "Why did you choose your proposed course and institution?" in case it may be helpful.

When answering this question, it is important to provide specific and detailed reasons for why you chose the particular course and institution. Here are some tips on how to structure your response:

1. Introduction: Start by briefly introducing the course and institution you have chosen, including their names and locations.

2. Why the institution? Provide some reasons for why you chose the particular institution. This could include factors such as:

- Reputation: Discuss the institution's reputation and how it influenced your decision. Has it been recognized for excellence in your chosen field or in general? Did the institution have a ranking that you found impressive?

- Resources: Discuss the resources that the institution has that are relevant to your course of study. These could include things like state-of-the-art facilities, research centers, or specialized faculty.

- Location: Discuss why you chose the institution's location. Does it offer a unique advantage for your studies, such as being located near industry-specific hubs, or do you find the location attractive or convenient for other reasons?

- Culture and community: Discuss the institution's culture and community. Do you feel like you will fit in with the community and thrive in the institution's culture? Did you attend any campus events or talk to current students or alumni to get a sense of what the community is like?

3. Why the course? Provide some reasons for why you chose the particular course. This could include factors such as:

- Interest and passion: Discuss your interest in the subject matter of the course and your passion for the field. Have you taken any related courses in the past that sparked your interest in this area?

- Career goals: Discuss how the course will help you achieve your career goals. Have you researched the job market and found that this degree will give you a competitive advantage? Have you talked to alumni or professionals in the field who have recommended this course?

- Curriculum: Discuss the curriculum of the course and how it aligns with your interests and goals. Did you review the course syllabus and find that the topics covered were relevant to your goals?

4. Conclusion: Sum up your reasons for choosing the course and institution and how they align with your interests and goals. Show enthusiasm for the opportunity to study at the institution and to pursue your chosen course.

Remember to tailor your response to your specific situation and experiences. Use personal anecdotes and examples wherever possible to add depth and authenticity to your response. Best of luck with your application!

A 2 HP, 120 V, single phase motor requires a 20 ampere inverse time circuit breaker branch circuit short circuit and ground fault protective device.

What is circuit?
A circuit is an electrical path between two or more points that allow electricity to flow. It consists of various components like resistors, capacitors, transistors, diodes, and wires. Each component serves as a building block to create a functioning circuit. Circuits are used to control and direct electricity to power a variety of devices like computers, televisions, radios, and more. They are at the heart of any electrical system, from the most simple to the most complex. By properly combining the components in a circuit, electricity can be directed to flow in the desired manner and perform the required tasks. Circuit design is an important engineering field and can be used to create many practical applications.

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Their HVACR technician advises against it because of the residential energy costs from HVAC units.

hat is the cost energy?

Energy Cost is known to be a term that connote the cost of electricity and this is one that is often related to fuel oil, gasoline, heating oil, natural gas, as well as other kinds or source of energy linked to any operation.

Hence, Since family in Florida heard about evaporative coolers as a way to cool their home without the expenses of a refrigerated air conditioning system. Their HVACR technician advises against it because of the residential energy costs from HVAC units.

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Answer:

15x

Explanation:

An HV (High Voltage) battery for a full-electric drive vehicle can weigh more than several hundred pounds. The exact weight of an HV battery can vary depending on various factors such as the vehicle's size, range, and battery capacity.

In larger electric vehicles like SUVs or trucks, the HV battery can weigh anywhere from 800 to 1,500 pounds or more. Smaller electric vehicles such as compact cars or hatchbacks may have HV batteries weighing between 400 and 800 pounds.It's important to note that battery technology is constantly evolving, and advancements are being made to improve energy density and reduce the weight of HV batteries while maintaining their performance and range. Therefore, the weight of HV batteries can vary based on the specific vehicle and the battery technology used.

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The overall gain of the amplifier is 15.

The overall gain of the amplifier can be calculated by multiplying the gain of the first stage with the gain of the second stage.

Given that the unloaded gain of the first stage is 30 and it drops to 15 after adding the second stage, we can calculate the gain of the second stage by dividing the overall gain by the gain of the first stage:

Gain of the second stage = Overall gain / Gain of the first stage
Gain of the second stage = 15 / 30
Gain of the second stage = 0.5

Now, we know that the gain of the second stage is 0.5.

To find the overall gain of the amplifier, we multiply the gain of the first stage with the gain of the second stage:

Overall gain = Gain of the first stage * Gain of the second stage
Overall gain = 30 * 0.5
Overall gain = 15

Therefore, the overall gain of the amplifier is 15.

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Answer:

The secondary coil should have fewer turns compared to the primary coil.

Explanation:

\(N_p\) = Number of turns in primary coil = 300

\(N_s\) = Number of turns in secondary

\(V_p\) = Voltage in primary coil = 120 V

\(V_s\) = Voltage in secondary coil = 6.4 V

We have the relation

\(\dfrac{N_p}{N_s}=\dfrac{V_p}{V_s}\\\Rightarrow N_s=\dfrac{N_p}{V_p}\times V_s\\\Rightarrow N_s=\dfrac{300}{120}\times 6.4\\\Rightarrow N_s=16\)

The secondary coil has 16 turns which is less than the turns in the primary coil.

Answer:

Power of a machine is defined as its rate of doing work. It is the rate of transfer of energy. The power of a machine is said to be one watt if it can work at the rate of one joule in one second.

Explanation:

Economic activities can occur during and between different stages of various processes.

Here are some examples:

Production Stage: During the production stage, economic activities can include the purchase of raw materials, labor costs, and the use of machinery and equipment.

Distribution Stage: During the distribution stage, economic activities can include transportation costs, warehousing costs, and marketing costs.

Consumption Stage: During the consumption stage, economic activities can include the purchase of goods and services by consumers.

Recycling Stage: During the recycling stage, economic activities can include the collection and processing of waste materials, the production of recycled materials, and the sale of these materials to manufacturers.

Innovation Stage: Economic activities during the innovation stage can include research and development expenses, patents, and intellectual property rights.

Service Stage: During the service stage, economic activities can include the provision of services to customers, such as consulting, repair, and maintenance services.

Investment Stage: During the investment stage, economic activities can include the purchase of securities, property, and other assets.

Overall, economic activities occur throughout various stages of a process, from the production of goods and services to their consumption and beyond.

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The correct answer is A. The inputRDD is computed and the data is loaded when the count() action is applied.

In Apache Spark, transformations are lazily evaluated, meaning they are not executed immediately when defined.

The actual computation happens when an action is called on the RDD. In this case, count() is an action that triggers the computation of the RDD and returns the count of elements.

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Answer: If you look up its definition of eroded it'll tell you the answer should be B

Explanation:

The phrase "system of rules where symbols represent actions" sums up programming languages the best.

Symbols that represent actions are used in a computer language's set of rules. Programming languages are the set of instructions that a computer uses to carry out projects. A programming language is a vocabulary and a set of grammatical rules for telling a computer or other computing equipment to carry out particular tasks.

High-level languages such as BASIC, C, C++, COBOL, Java, FORTRAN, Ada, and Pascal are typically referred to as programming languages. instruction. The principles that specify how a language is structured are known as syntax. In computer programming, syntax refers to the rules that govern how words, punctuation, and symbols are organized in a programming language. To define algorithms or write programs to control a machine's behavior, programmers utilize programming languages.

Therefore the correct answer is option A ) A set of rules where symbols represent actions.

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When it comes to identifying transistor materials, it is important to understand which elements can be used as a dopant in a p-type semiconductor. Of these options, gallium and antimony are typically used as dopants in p-type semiconductors.

In this case, the options are gallium, arsenic, antimony, and phosphorus.This is because these elements have fewer valence electrons than the base semiconductor material, which allows for the creation of electron holes in the p-type material. By adding these dopants, it becomes easier to control the conductivity of the semiconductor, making it possible to create p-type transistors. Overall, understanding the properties of different semiconductor materials and dopants is essential for developing advanced electronic devices.

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Answer:

Technician be says that diesel engines produce more power because they use excess air to burn feel who is correct

Explanation:

He is correct as many engines are run by diesel. It produces more power as that is how cars produce more power.

Since the Earth contains a constant temperature range heat exchangers can be built underground without other added expenses yes they are expensive to put underground but the pay off is greater long term wise since the heat rises it can be said you could put a heatpump in a small area and it can over time increase the relative heat in that area of effect.

hope this helps look into, heat displacement thru underground heating to get a clearer picture

Answer:

a) The difference in mercury levels in the manometer is 2 centimeters.

b) The gage of the gas is 2.670 kilopascals.  

Explanation:

a) Pressure in gases is absolute. A manometer helps to determine the hydrostatic difference between pressure of the gas (\(P_{g}\)) and atmospheric pressure (\(P_{atm}\)), both measured in pascals. A kilopascal equals 1000 pascals and 1 meter equals 100 centimeters. That is:

\(P_{g}-P_{atm} = \rho \cdot g \cdot L\) (1)

Where:

\(\rho\) - Density of mercury, measured in kilograms per cubic meter.

\(g\) - Gravitational acceleration, measured in meters per square second.

\(L\) - Difference in mercury levels, measured in meters.

If we know that \(P_{g} = 104000\,Pa\), \(P_{atm} = 101330\,Pa\), \(\rho = 13590\,\frac{kg}{m^{3}}\) and \(g = 9.807\,\frac{m}{s^{2}}\), the difference in mercury levels in the manometer is:

\(L = \frac{P_{g}-P_{atm}}{\rho\cdot g}\)

\(L = \frac{104000\,Pa-101330\,Pa}{\left(13590\,\frac{kg}{m^{3}} \right)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}\)

\(L = 0.020\,m\)

\(L = 2\,cm\)

The difference in mercury levels in the manometer is 2 centimeters.

b) The gage pressure is the difference between gas pressure and atmospheric pressure: (\(P_{g} = 104000\,Pa\), \(P_{atm} = 101330\,Pa\))

\(P_{gage} = P_{g}-P_{atm}\) (2)

\(P_{gage} = 104000\,Pa-101330\,Pa\)

\(P_{gage} = 2670\,Pa\)

\(P_{gage} = 2.670\,kPa\)

The gage of the gas is 2.670 kilopascals.

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.

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The initial angular acceleration of the reel of cable is 1.11 rad/s².

To determine the initial angular acceleration of the reel of cable, we need to use the equation τ = Iα, where τ is the torque applied to the reel, I is the moment of inertia, and α is the angular acceleration.
First, we need to find the torque applied to the reel. Since a horizontal force of P = 100 N is applied to the reel, the torque is given by τ = Fr, where F is the force and r is the radius of the reel.
τ = 100 N * 0.6 m = 60 N*m
Next, we need to find the moment of inertia of the reel. The moment of inertia of a solid cylinder is given by I = ½mr², where m is the mass of the cylinder and r is the radius of gyration.
I = ½ * 300 kg * (0.6 m)² = 54 kg*m²
Now we can plug in our values into the equation τ = Iα and solve for α:
60 N*m = 54 kg*m² * α
α = 1.11 rad/s²
Therefore, the initial angular acceleration of the reel of cable is 1.11 rad/s².

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Answer:

OPTION A,Larger

HOPE IT HELPS

Answer:Size reduction

Cooling

Mixing

Explanation:

Answer:

Buyer is encouraged to obtain and read the booklet entitled "The Homeowners Guide to Earthquake Safety." In most cases a questionnaire within the booklet must be completed by Seller and the entire booklet given to the Buyer if the Property was built prior to 1960.

Answer:

Overall project duration

Explanation:

Scheduling can best be defined as the process used to determine a overall project duration.