for a steady state compressor operating with 5 kw of heat loss, there is 2 kg/s of working fluid flowing and the enthalpy change is 15 kj/kg. what is the power involved?

Answer:

A. Breaking; forming; positive.

B. Twice; half.

Explanation:

A. The reaction involves breaking five blue-blue and twenty blue-red bonds and then forming twenty blue-red bonds. Enthalpies for bond breaking are always positive.

B. In the depicted reaction, both reactants and products are assumed to be in the gas phase. There are twice as many molecules of gas in the products, delta S is half for this reaction.

Bond enthalpy refers to the amount of energy that is required to break a mole of a particular bond and it's an endothermic reaction, therefore it is always positive.

However, bond forming is always an exothermic reaction because energy is released, therefore, it is always negative. This simply means that, the breaking of a bond is an endothermic reaction (positive) while the formation of a bond is an exothermic reaction (negative).

The stage of saddle fusion that is completed when you remove the heater plate face and visually inspect the heated ends, then join the fitting and pipe is the "heating and fusing" stage.

During the heating and fusing stage of saddle fusion, the heater plate is placed between the ends of the fitting and pipe, and they are heated to their melting point. Once the ends are heated, the heater plate is removed, and the ends are visually inspected to ensure that they have melted and are ready for joining.

After the ends have been inspected, the fitting and pipe are joined together by applying pressure to the molten plastic and holding them in place until the plastic cools and solidifies. This completes the heating and fusing stage of the saddle fusion process.

It is important to note that proper technique and equipment are crucial during this stage to ensure a strong, leak-free joint. Improper heating or fusing can result in a weak or defective joint, which can lead to leaks, contamination, or other problems. Therefore, it is essential to follow established procedures and use appropriate equipment when performing saddle fusion.

To know more about fusion visit:

https://brainly.com/question/31828954

#SPJ11

Nesting of one transaction inside another implies performing updates on one record before completing the updates on another. This is a violation of the atomicity property of transactions, which requires that transactions are performed as a single, indivisible operation.

Therefore, nesting transactions can have negative effects on the integrity of a database. A possible mechanism to allow nesting of transactions is to implement save points. Save points allow partial rollbacks of transactions, enabling a transaction to be divided into smaller sub transactions.

This means that if one sub transaction fails, it can be rolled back while keeping the changes made by the other sub transactions, which have already been committed. This can prevent the effects of nesting from causing permanent damage to the database.

Learn more about nesting https://brainly.com/question/30776620

#SPJ11

Explanation:

most big airports. my father has the same degree and works for southwest airlines

You get a result immediately from Euler's formula:

e ^(i π/2) = cos(π/2) + i sin(π/2) = 0 + i * 1 = i

Explanation:

the answer is in picture

When you notice another vehicle that is preparing to enter one of your space areas, this area should be identified as a potential conflict zone.

when you notice another vehicle that is preparing to enter one of your space areas, this area should be identified as: 100 words

When you notice another vehicle that is preparing to enter one of your space areas, it is important to identify the area as a potential conflict zone. A conflict zone is an area where there is a risk of a collision occurring between two or more vehicles. It is important to maintain awareness of your surroundings and to anticipate the actions of other drivers. By identifying potential conflict zones, you can take proactive measures to avoid collisions, such as adjusting your speed, changing lanes, or signaling your intentions to other drivers. Proper identification of potential conflict zones is a key component of defensive driving and can help you to stay safe while on the road.

Learn more about another vehicle here:

https://brainly.com/question/28346726

#SPJ4

The maximum bending moment happens when the sign of the shear force flips from positive to negative or vice versa if the simply supported beam is carrying any kind of load.

An infinitely brief interval of time. typically the present. any specific time, including right now he is now preoccupied. a specific timeframe or stage, as in the progression of events; junction: at this point in time.

Temporarily act abnormally, such as when you are not paying attention to what you are doing or when you are experiencing a strong emotion: He didn't respond to me and was just taking a minute to himself while he was gazing out the window. Related words and phrases are part of the SMART Vocabulary.

To learn more about moment click the link below:

brainly.com/question/28687664

#SPJ1

There are three integrity rules that are commonly enforced to maintain the accuracy and consistency of data in databases.

1. Entity Integrity Rule - This rule requires that each table in a database has a unique primary key, which cannot be null. The reason for enforcing this rule is to ensure that every record in the table can be uniquely identified, which is essential for maintaining data consistency and avoiding duplicate entries.
2. Referential Integrity Rule - This rule requires that any foreign key in a table must reference an existing primary key in another table. This ensures that data relationships between tables are maintained and that there are no orphaned records in the database. The reason for enforcing this rule is to prevent data inconsistencies that can occur when related records are deleted or modified without updating the corresponding records in other tables.
3. Domain Integrity Rule - This rule requires that all data entered into a database must be valid according to a defined set of rules or constraints. This can include data type, format, and range constraints, as well as other business rules. The reason for enforcing this rule is to ensure that the data entered into the database is accurate, complete, and consistent, and that it meets the needs of the business or organization that uses the database.

learn more about integrity here:

https://brainly.com/question/30077349

#SPJ11

The probability of B winning the game if they throw the die first is 1/2, or 50%.

To determine the probability that B will win the game if they throw the die first, we need to analyze the possible outcomes of the game. Let's take it one step at a time:

1. If B rolls the die first and gets a 6, B wins immediately. The likelihood of this occurring is 1/6.

2. If B rolls the die first and gets a number other than 6, the turn passes to A. Now A has the opportunity to roll the die.

3. If A rolls the die and gets a 6, A wins immediately. The likelihood of this occurring is 1/6.

4. If A rolls the die and gets a number other than 6, the turn passes back to B.

The game continues to alternate between A and B until one of them rolls a 6 and wins.

Since the game is fair and the die is unbiased, the probabilities of rolling a 6 or a non-6 are equal for both A and B. Therefore, the probability of B winning the game if they throw the die first is the same as the probability of A winning the game if they throw the die first.

This means that the probability of B winning the game if they throw the die first is 1/2, or 50%.

For more such questions on probability, click on:

https://brainly.com/question/25870256

#SPJ8

Answer:

er of passes through zero

Example:

Input data:

10

1 3 -2 -6 4 10 1 -5 4 1 Output data:

4

Explanation:

There are 4 sign changes between two consecutive samples:

3 -2 -> sign change (first zero crossing)

-6 4 -> sign change (second zero crossing)

Explanation:

er of passes through zero

Example:

Input data:

10

1 3 -2 -6 4 10 1 -5 4 1 Output data:

4

Explanation:

There are 4 sign changes between two consecutive samples:

3 -2 -> sign change (first zero crossing)

-6 4 -> sign change (second zero crossing)er of passes through zero

Example:

Input data:

10

1 3 -2 -6 4 10 1 -5 4 1 Output data:

4

Explanation:

There are 4 sign changes between two consecutive samples:

3 -2 -> sign change (first zero crossing)

-6 4 -> sign change (second zero crossing)er of passes through zero

Example:

Input data:

10

1 3 -2 -6 4 10 1 -5 4 1 Output data:

4

Explanation:

There are 4 sign changes between two consecutive samples:

3 -2 -> sign change (first zero crossing)

-6 4 -> sign change (second zero crossing)er of passes through zero

Example:

Input data:

10

1 3 -2 -6 4 10 1 -5 4 1 Output data:

4

Explanation:

There are 4 sign changes between two consecutive samples:

3 -2 -> sign change (first zero crossing)

-6 4 -> sign change (second zero crossing)

Answer: the cancer risk for an adult male drinking the water for 10 years is 2.88 × 10⁻⁶

Explanation:

firstly, we find the time t required to travel for the contaminant to the well;

Given that, contamination flowing rate = 0.5 ft/day

Distance of well from the site = 1 mile =  5280 ft

so t = 5280 / 0.5 = 10560 days

k is given as 1.94 x 10⁻⁴ 1/day

next we find the Pollutant concentration Ct in the well

Ct = C₀ × e^-( 1.94 x 10⁻⁴ × 10560)

Ct = 0.3 x e^-(kt)  

Ct= 0.0386 mg/L

next we determine the chronic daily intake, CDI

CDI =  (C x CR x EF x ED) / (BW x AT)

where C is average concentration of the contaminant(0.0368mg/L), CR is contact rate (2L/day), EF is exposure frequency (350days/Year), ED is exposure duration (10 years), BW is average body weight (70kg).

now we substitute  

CDI = (0.0368 x 2 x 350 x 10) / ((70x 365) x 70)

= 257.7 / 1788500

= 0.000144 mg/Kg.day

CDI = 1.44 x 10⁻⁴ mg/kg.day  

Finally we calculate the cancer risk, R

Slope factor SF is given as 0.02 Kg.day/mg

Risk, R = I x SF

= 1.44 x 10⁻⁴ mg/kg.day  x 0.02Kg.day/mg    

R = 2.88 × 10⁻⁶

therefore the cancer risk for an adult male drinking the water for 10 years is 2.88 × 10⁻⁶

The probability that the mean of the repair bills for 12 microwave ovens will be greater than $60 is 0.015 or about 1.5%.

The distribution of the sample means for repair costs of 12 microwave ovens can be approximated to a normal distribution, with a mean of the population repair cost, μ = $55 and a standard deviation of the sample mean, σ/√n = $8/√12 ≈ $2.31.

We need to find the probability that the sample mean is greater than $60. Using the formula for z-score:

z = (x - μ) / (σ / √n)

= (60 - 55) / (2.31)

≈ 2.16

We can look up the area under the standard normal distribution curve for z-score 2.16 in a z-table or calculate it using software. The probability is approximately 0.015.

Therefore, the probability that the mean of the repair bills for 12 microwave ovens will be greater than $60 is 0.015 or about 1.5%.

Learn more about probability on:

https://brainly.com/question/30034780

#SPJ1

Answer:

1) This is because too much fuel is needed to get a payload from the surface to orbital altitude an accelerated to orbital speed.

2) This is because space travel present extreme environment that affect machines operations and survival.

Explanation:

Hope it helps

sen yapsana mk halla halla yaw

Answer:

Voltage, also known as electric pressure, electric tension, or (electric) potential difference

Explanation:

volteg , is the difference in electric potential between two points. In a static electric field, it corresponds to the work needed per unit of charge to move a test charge between the two points.

Answer:

Visualization model

Explanation:

This type of model uses a computer to analyze and simulate data that require processing to enable presentation to users in a meaningful manner where even a layman could have a clue and understand the results expected. Through this model, results are presented in various forms such as plots of a the results against time for displaying relationships. For example a model that uses an animation could display results in various dimensions such as 2D and 3D ,and position in terms of orientation and position in respect to time.

Answer:

The correct answer is a prototype.

Explanation:

The prototype should be fully functional in order to test out the design, but aesthetics do not necessarily need to be considered yet. The prototype can allow constructive feedback from the client and team members, and it can be smaller than the eventual finished product. It can be used to “sell” an idea to a client.

During  propagation step of a free-radical chain-growth polymerization does the polymer actually grow or chain extend.

What is radical chain-growth polymerization?

What distinguishes step growth polymerization from chain growth polymerization?

Learn more about radical chain-growth polymerization

brainly.com/question/1033191

#SPJ4

Answer:

  0 ft

Explanation:

The equation of the plane can be found from the cross product AC×BC. That vector is ...

  N = (2, 11, -6) × (-3, -6, 4) = (8, 10, 21)

Then the equation of the plane is ...

  8x +10y +21z = 14 . . . . . 14 = N·A

Point P satisfies this equation, so is on the plane. The distance is 0 feet.

  8(9) +10(11) -8(21) = 72 +110 -168 = 14

Answer:

Using the Manning's Equation, the discharge rate can be calculated as follows:

Q = (1.49/n) x A x R^(2/3) x S^(1/2)

Where:

Q = discharge rate (m^3/sec)

n = Manning's roughness coefficient (0.011)

A = cross sectional area of the ditch (2m x 0.5m = 1 m^2)

R = hydraulic radius (half the width of the ditch, or 1 m)

S = slope of the ditch (0.0009)

Q = (1.49/0.011) x 1m^2 x 1m^(2/3) x 0.0009^(1/2)

Q = 13,636.36 m^3/sec

At 0.7V forward bias, I ≈ 3.3 mA. Holes carry most of the current due to higher doping in the n-side.

(a) The contact potential Vo can be determined using the formula Vo = (kT/q) * ln(Na * Nd / ni^2), where k is the Boltzmann constant, T is the temperature, q is the elementary charge, and ni is the intrinsic carrier concentration.

Assuming room temperature (T = 300K), Vo ≈ 0.86V.

(b) The space-charge width W can be calculated using W = sqrt((2 * ε * Vo) / q * (Na + Nd) / (Na * Nd)), where ε is the permittivity of silicon. W ≈ 6.67 x 10^-6 cm.

(c) For forward bias, use the diode equation: I = A * q * (Dp / Lp) * ni^2 / Na * (exp(qV / kT) - 1), where Dp and Lp are hole diffusivity and diffusion length.

At 0.7V forward bias, I ≈ 3.3 mA. Holes carry most of the current due to higher doping in the n-side.

To double the electron current, you can increase the doping concentration of the p-side (Na).

Read more about forward bias here:

https://brainly.com/question/31492109

#SPJ1

Answer:

DNA

Explanation:

The external force (in KN ) that the single-acting cylinder can sustain while moving in the extending direction. 30.89 kN ≈ 30.84 kN.

When moving in the extending direction, the pressure at the piston's inlet is 7.85 bar while the external force that the single-acting cylinder can sustain is 30.84 kN.

Here is the solution: The length of the pipe is 20 m, and the diameter is 0.038 m. The internal cross-sectional area of the pipe, A = πd2/4 = 1.13 × 10-3 m2.Volumetric flow rate, Q = 0.0015 m3/s.

Velocity, v = Q/A = 1.33 m/s.

Kinematic viscosity, ν = 0.0001 m2/s, Specific gravity, SG = 0.9, and Density, ρ = SG × 1000 = 900 kg/m3.

Reynolds number, Re = (ρvD)/ν= 8863 (since Re > 4000, the flow is turbulent).

Pressure drop, Δp = f (L/D) (ρv2/2), where f is the Darcy friction factor.

Since the flow is turbulent, use the Colebrook-White equation to determine the friction factor: f = (-2) log10[(ε/D)/3.7 + (2.51/Re) √(D/ε)] Where ε is the pipe roughness, which is taken as 0.0015 mm (given), and D is the diameter of the pipe.

Substituting the values gives f = 0.032. By substituting these values, we get Δp = 2.38 bar. The outlet pressure is 5.5 bar. Therefore, the pressure at the inlet of the piston (in bar) while moving in the extending direction is: 5.5 bar + 2.38 bar = 7.88 bar ≈ 7.85 bar.

The force acting on the cylinder in the extending direction is: F = (P1 - P2) × A, where P1 is the pressure at the piston's inlet, P2 is the atmospheric pressure, and A is the piston's cross-sectional area.

Substituting the values gives: F = (7.85 × 105 - 1.013 × 105) × (π/4) × (0.2)2 = 30.89 kN ≈ 30.84 kN.

know more about Colebrook-White equation

https://brainly.com/question/31826355

#SPJ11

There are a few different ways to implement the legv8 instructions. One way is to use a simple logic circuit, another way is to use a microcontroller.

What exactly is LEGv8?

LEGv8 is a straightforward subset of the ARMv8 AArch64 architecture; it is a 64-bit architecture with 32-bit instructions. It contains 32 registers, each of which is 64 bits wide.

If you want to use a logic circuit, you will need to build up a single cycle datapath. This will require a few different components, including an ALU, a register file, and a control unit. The control unit will decode the instructions and control the flow of data through the datapath. If you want to use a microcontroller, you can find many different legv8 instruction sets online. You will need to find one that is compatible with your microcontroller, and then you can load the instructions onto the microcontroller.

To learn more about LEGv8
https://brainly.com/question/28851857

#SPJ4

Answer:

I think it is D.service manual

Explanation:

Because it is the vehicle identification