Hot combustion gases, modeled as air behaving as an ideal gas, enter a steady-state turbine at 145 psi, 2700oR, and exit at 29 psi and 1974oR. The power output is 74.26 hp, and heat transfer from the turbine to the surroundings occurs at a rate of 14 BTU/s.

Required:
Determine the power output of the turbine, in hp.

Answer:Size reduction

Cooling

Mixing

Explanation:

Answer:

general duty clause

Explanation:

Answer:

59°C

Explanation:

Given that, Cc = McCp,c = 5000 /3600 × 4178 = 5803.2(W/K)

and Ch = MhCp,h = 10000 / 3600 × 4188 = 11634.3(W/K)

Therefore the minimum and maximum heat capacities are:

Cmin = Cc = 5803.2(W/K)

Cmax = Ch = 11634.3(W/K)

The capacity ratio is:

Cr = Cmin / Cmax = 0.499 = 0.5

The maximum possible heat transfer rate is:

Qmax = Cmin (Th,i - Tc,i) = 5803.2 (80 - 20) = 348192(W)

And the number of transfer units is: NTU = UA / Cmin = 11600 / 5803.2 = 1.99

Given that from the appropriate graph in the handouts we can read  = 0.7. So the actual heat transfer rate is: Qact = Qmax = 0.7 × 348192 = 243734.4(W)

Hence, the outlet hot temperature is: Th,o = Th,i - Qact / Ch = 59°C

Answer: quarter turn

Explanation:  There are two basic types of valves ball valves and quarter turn valves or unblocks the hole, either allowing or preventing fluid flow.

The D. dew point temperature is the BEST indicator of the actual amount of water vapor in the air.

The dew point is the temperature at which the air becomes saturated when it is cooled with constant pressure and humidity levels. The point at which the air becomes saturated is determined by the amount of moisture in the air.

Dew point temperature is a measure of the amount of moisture in the air. When the air is cooled, the dew point temperature is the temperature at which the air becomes saturated and water vapor begins to condense into droplets. The lower the dew point temperature, the drier the air is. If the dew point temperature is below freezing, the moisture in the air can freeze and form frost.

Therefore, it is very useful for weather forecasters to know the dew point temperature because it is a key factor in determining the probability of precipitation, as well as the severity of thunderstorms, hurricanes, and other weather events. In conclusion, the dew point temperature is the BEST indicator of the actual amount of water vapor in the air.

Therefore the correct option is d. Dew point temperature

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Answer: 2 step by step

Explanation: ;) don't know if this helped or not

Answer:

See explanation.

Explanation:

Since no figure was given I solved a problem that was similar to the one you described that I worked in my mechanics of materials class. The method should be very similar for your figure. See attached image for my work.

If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.

We need to perform a two step process to obtain the maximum shear stress on the shaft. For the solid shaft,

P=2×pi×N×T/60 or T=60×p/2×pi×N

Where P=power transmitted by the shaft=50×10³W

N=rotation speed of the shaft in rpm=730rpm

Pi=3.142

T is the twisting moment

By substituting the values for pi, N and P, we get

T=654Nm or 654×10³Nmm

Also, T=pi×rho×d³/16 or rho=16×T/pi×d³

Where rho=maximum shear stress

T = twisting moment=654×10³Nmm

d= diameter of shaft= 40mm

By substituting T, pi and d

Rho=52Mpa

b. For a hollow shaft, the value for rho is unknown

T=pi×rho(do⁴-di⁴/do)/16

Rho=T×16×do/pi×(do⁴-di⁴)

Where

T= twisting moment=654×10³Nmm gotten above

do=outside shaft diawter=40mm

di= inside shaft diameter =30mm

Pi=3.142

Substituting values for pi, do, di and T.

Rho=76Mpa

Therefore, If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.

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The dual problem of a linear programming problem can be found by flipping the inequality signs and re-assigning the objective function as a constraint.

Given the following linear programming problem min 4x1 - 3 x2 subject to 3x1 - x2 ≤ 6 5x1 - 4x2 ≥ 8 x1 - 6x2 =5 x1, x2 ≥ 0To find the dual of the problem, the following steps can be taken:

Step 1: Flip the problem The first step in finding the dual problem is to flip the inequality signs of the constraint of the original problem. The constraints of the original problem are as follows:3x1 - x2 ≤ 65x1 - 4x2 ≥ 8x1 - 6x2 = 5Flipping the inequality signs of the above equations results in the following:3x1 - x2 ≥ 65x1 - 4x2 ≤ 8x1 - 6x2 = 5

Step 2: Re-assign the objective The next step is to re-assign the objective function of the original problem as a constraint. That is, the coefficients of the original objective function are used as constraints in the dual problem. Thus, for the given problem,

we have:4x1 - 3x2 = x0Step 3: Formulate the dual problem The dual problem can now be formulated by using the re-assigned objective function and the flipped inequality signs of the original problem. The coefficients of the original problem form the new objective function of the dual problem, while the flipped inequalities form the constraints of the dual problem. Therefore, the dual problem of the given problem is: minimize 6y1 + 8y2 + 5y3, subject to:3y1 + 5y2 + y3 ≥ 4- y1 - 4y2 - 6y3 ≥ -3Where y1, y2 and y3 are the dual variables corresponding to the original constraints. Thus, the dual problem of the given problem has been found.

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The mass of 300 liters of Hydrogen at a pressure of 200 Bar and a temperature of 25°C is approximately 4.9 kg.

To calculate the mass of a gas, we can use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin. In this case, we have the volume (300 liters), the pressure (200 Bar), and the temperature (25°C).

First, we need to convert the temperature from Celsius to Kelvin. The Kelvin temperature is obtained by adding 273.15 to the Celsius temperature. Therefore, 25°C + 273.15 = 298.15 K.

Next, we need to convert the pressure from Bar to Pascal. One Bar is equal to 100,000 Pascals. So, 200 Bar = 200 × 100,000 = 20,000,000 Pascals.

Now, we can rearrange the ideal gas law equation to solve for the number of moles (n). n = PV / RT.

Plugging in the values, we get n = (20,000,000 Pa) × (300 liters) / [(8.314 J/(mol·K)) × (298.15 K)]. After performing the calculations, we find that the number of moles is approximately 3.2 moles.

Finally, to calculate the mass, we need to multiply the number of moles by the molar mass of hydrogen, which is approximately 2 grams per mole. Therefore, the mass of 300 liters of Hydrogen is approximately 3.2 moles × 2 g/mol = 6.4 grams = 0.0064 kg.

However, in the question, the answer choices provided are in kilograms. So, we need to convert grams to kilograms by dividing the value by 1000. Hence, the mass of 300 liters of Hydrogen is approximately 0.0064 kg, which is approximately equal to 4.9 kg.

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$255 per hour

Total number of employed people = 16

(i) 5 people earn $15 per hour

That means that the total amount earned by those 5 is;

5 x $15 = $75 per hour

(ii) 4 people earn $17 per hour

That means that the total amount earned by those 4 is;

4 x $17 = $68 per hour

(iii) The remaining people earn $16 per hour.

There are 7 people remaining. i.e

16 - 5 - 4 = 7

That means that the total amount earned by those remaining (7) is;

7 x $16 = $112 per hour

The total hourly wage is therefore the sum of all the results in i, ii and iii. i.e

Total = $75 + $68 + $112

Total = $255

Therefore, the total hourly wage earned by all 16 people is $255

Answer:

Engine oil level.

Brake fluid.

Power steering fluid.

One of the highest-risk maneuvers that drivers often engage in is distracted driving.

Distracted driving refers to any activity that diverts a driver's attention away from the primary task of operating a vehicle. This can include activities such as using a cellphone, texting, talking to passengers, eating, grooming, or using in-vehicle technologies.

Distracted driving is particularly dangerous because it takes the driver's focus away from the road, increasing the risk of accidents and injuries. It impairs the driver's ability to recognize and respond to potential hazards, decreases reaction time, and can result in loss of control of the vehicle.

Engaging in distracting activities while driving is a form of risky behavior that significantly increases the likelihood of accidents, injuries, and fatalities on the road. It is crucial for drivers to prioritize their attention and focus on the task of driving to ensure the safety of themselves and others on the road.

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The match for longitudinal bar diameter with minimum size of fitment is Up to N20 single bar - b) N10, N24 to N36 single bar - c) N12, and Bundle bars - a) N6.

The size and design of the reinforcing bars used in construction influence how closely the longitudinal bar diameter matches the minimal size of fitting.

The minimum size of fitment is normally N10, which refers to a minimum bar diameter of 10mm, for bars up to N20, which refers to smaller diameter bars.

These more compact bars are frequently employed for lighter loads or in locations where less reinforcing is required.

The lowest size of fitment is often N12, which denotes a minimum bar diameter of 12mm, with larger bars ranging from N24 to N36, which are larger diameter bars.

The minimum size of fitment for bundle bars, which are many bars bundled together, is N6, which translates to a minimum bar diameter of 6mm.

Thus, this can be the match for the given scenario.

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Answer:

See the image for solution

Answer:

89375 N

Explanation:

Rearrange the formula for normal stress for F:

\(\sigma=\frac{F}{A}\)

\(F=\sigma*A\)

Convert given values to base units:

275 MPa = \(275*10^{6}\) Pa

325 \(mm^{2}\) = 0.000325 \(m^{2}\)

Substituting in given values:

F = \((275*10^{6})*(0.000325)=89375\) N

Answer:

To calculate the coolant boiling point with a 15 psi pressure cap, we need to consider the base boiling point of water, the increase in boiling point due to the 50-50 mix of coolant, and the increase in boiling point per psi of pressure.

Base Boiling Point of Water: 100°C

Increase in Boiling Point due to Coolant Mix: 6°C

Increase in Boiling Point per psi: 17°C

Calculation for a 15 psi pressure cap:

Base Boiling Point + Increase due to Coolant + (Pressure Increase × Increase per psi)

= 100°C + 6°C + (15 psi × 17°C/psi)

= 100°C + 6°C + 255°C

= 361°C

Therefore, with a 15 psi pressure cap, the cooling system boiling point would be 361°C.

Now let's calculate the boiling point with a 12 psi pressure cap:

Base Boiling Point + Increase due to Coolant + (Pressure Increase × Increase per psi)

= 100°C + 6°C + (12 psi × 17°C/psi)

= 100°C + 6°C + 204°C

= 310°C

With a 12 psi pressure cap, the cooling system boiling point would be 310°C.

If pure water is used instead of a 50-50 mix of coolant, the boiling point would remain at 100°C since there would be no additional increase in boiling point due to the coolant mix.

As for the freezing point, the presence of the coolant mix or the pressure cap does not directly affect the freezing point of water. The freezing point of water is generally 0°C, regardless of the coolant mix or pressure conditions.

Explanation:

Answer:

A

Explanation:

All of the aforementioned are true characteristics and properties of aluminum except: B. is resistant to galvanic corrosion.

Aluminum can be defined as a silvery white metal and it is considered to be the most abundant metal found in the Earth's crust. Also, it is represented with the chemical symbol "Al" and it has an atomic number of thirteen (13).

This ultimately implies that, aluminum is found in Group 3 on the periodic table because it has three (3) valence electrons, which are found in the outermost shell of its atomic nucleus.

Some of the characteristics and properties of aluminum include the following:

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The type of bias present in the above example is called "selection bias" or "sampling bias."

Sampling bias happens when the information used to teach or create something does not accurately represent all the people or things it is meant to. This selection bias means that the algorithm may not work well or give accurate results when used on people who do not speak English as their first language.

In detecting Alzheimer's disease by analyzing how people talk, this bias might cause wrong or limited results when used on people who speak different languages.

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Point E has a total internal loading of -3 kN. At point F, there is a +3 kN internal loading overall.

In mathematics and physics, a cross-sectional area is the non-empty intersection of a solid body in three dimensions with a plane, or its equivalent in higher dimensions. An item can be divided into several parallel cross-sections when it is chopped into pieces. The boundary of a three-dimensional cross-section that is parallel to the plane created by these axes and equal to two of the directions is also referred to as a contour line. Point E has a total internal loading of -3 kN. At point F, there is a +3 kN internal loading overall. The internal loadings acting on the cross section at E are mathematically given as, according to what we have. M e=-2400lbft. Typically, the mathematical equation for the equilibrium moment about b is written as

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"Making data look like it has come from a different source is called"

Hi! Making data look like it has come from a different source is called data spoofing.

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Answer:

I think A is correct

The two technicians are right in their given assessment about the use of collapsible steering columns and collapsible brake pedals to reduce the risk of trapping the driver's feet.

This refers to the vehicular movement from one point to another, obeying traffic rules, and respect for other drivers and pedestrians.

Hence, we can see that with regards to safe driving, the opinions of both Technicians A and B are both correct as they both want the safety of the car and the driver.

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Answer:

Explanation:

To attach a Swiffer Wet Jet pad, you first need to make sure the device is turned off and the battery is removed. Then, locate the cleaning pad attachment on the bottom of the unit and push it forward until it clicks into place.

Next, take your Swiffer Wet Jet pad and align the edges with the Velcro strips on the cleaning pad attachment. Press down firmly on the pad until it is securely attached.

Once the pad is attached, you can turn the device back on and begin cleaning. Remember to replace the pad after each use or when it becomes too dirty to effectively clean your floors.

I hope that helps!

When configuring a load, two important things that are computed are: power consumption and load capacity.

Power Consumption: The power consumption of the load is computed to determine the amount of electrical power it will draw from the source. This involves calculating the load's voltage requirements and current draw, which helps in determining the power supply capacity needed to support the load.

Load Capacity: The load capacity refers to the maximum amount of power or current that a load can handle without malfunctioning or exceeding its operating limits. It is computed to ensure that the load is adequately sized to handle the expected power demand and to prevent overloading or damaging the load.

By accurately computing the power consumption and load capacity, the load can be properly configured to ensure compatibility with the power source and prevent potential issues such as electrical overload or insufficient power supply.

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The displacement of end D with respect to end A is 6.04 micrometers, if assembly is made of 6061-T6 aluminum.

To calculate the displacement we can use the formula for the deformation of a bar under axial load:

δ = P L / (A E)

where delta is the deformation (displacement) of the bar,

P is the axial load applied to the bar,

L is the length of the bar,

A is the cross-sectional area of the bar, and

E is the modulus of elasticity of the material.

For segment AB, the axial load is given by:

P = F = (2/3) W = (2/3) (9.81 m/s²) (4 kg) = 26.16 N

The length and cross-sectional area of segment AB are:

L = b = 455 mm = 0.455 m

A = (pi/4) d² = (pi/4) (20 mm)² = 314.16 mm² = 0.00031416 m²

The modulus of elasticity of 6061-T6 aluminum is given as E = 68.9 GPa = 68.9 x 10⁹ Pa.

Therefore, the deformation of segment AB is:

δ_{AB} = P L / (A E)

= (26.16 N) (0.455 m) / (0.00031416 m²) (68.9 x 10⁹ Pa)

= 1.83 x 10⁻⁶ m = 1.83 micrometers.

For segment BC, we can assume that there is no deformation since it is a tube and is not subject to axial load.

For segment CD, the axial load is given by:

P = F = (1/3) W = (1/3) (9.81 m/s²) (4 kg) = 13.88 N

The length and cross-sectional area of segment CD are:

L = b = 455 mm = 0.455 m

A = (pi/4) d² = (pi/4) (30 mm)² = 706.86 mm² = 0.00070686 m²

Therefore, the deformation of segment CD is:

δ_{CD} = P L / (A E) = (13.88 N) (0.455 m) / (0.00070686 m²) (68.9 x 10⁹ Pa)

= 4.21 x 10⁻⁶ m = 4.21 micrometers.

To find the displacement of end D with respect to end A, we can sum up the deformations of segments AB and CD, since they are in series:

δ_{D} = δ_{AB} + δ_{CD}

= (1.83 + 4.21) x 10⁻⁶ m = 6.04 micrometers

Therefore, the displacement of end D with respect to end A is 6.04 micrometers.

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Since technician A said that the state of charge of a NiMH battery can be determined by measuring cell voltage, the technician that is correct is: B) Technician B.

In Science, a charge can be defined as a fundamental, physical property of matter that governs how the particles of a substance are affected by an electromagnetic field, especially due to the presence of an electrostatic force (F).

NiMH battery is the short abbreviation for Nickel-metal hydride battery and it can be defined as a type of rechargeable battery which is typically used in electronic devices such as the following:

Generally speaking, there are several factors that must be considered in order to determine the state of charge of a Nickel-metal hydride (NiMH) battery and these include the following:

In this context, we can logically deduce that only Technician B is correct.

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Complete Question:

Technician A says that the state of charge of a NiMH battery can be determined by measuring cell voltage. Technician B says that many factors should be considered in determining the state of charge of a NiMH battery, including temperature, output current, and cell voltage. Which technician is correct?

A) Technician A

B) Technician B

C) Both Technicians

D) Neither Technician

A Poisson process is a statistical model that describes the occurrence of rare events over time or space. It is commonly used to model the number of failures in commercial water pipes.

One of the advantages of using a Poisson process to model the number of failures in commercial water pipes is that it allows for the calculation of the probability of multiple failures occurring within a given time period. For example, if the failure rate is estimated to be 1 failure per 100 km of pipe per day, the probability of two failures occurring in a 24 hour period can be calculated.

In addition, the Poisson process can be used to determine the expected number of failures over a given time period. For example, if the failure rate is estimated to be 1 failure per 100 km of pipe per day, the expected number of failures over a 30-day period would be 30 failures.


In conclusion, the Poisson process is a useful statistical model for estimating the number of failures in commercial water pipes. It allows for the calculation of the probability of multiple failures occurring within a given time period, as well as the expected number of failures over a given time period. However, it is important to consider the assumptions of the model and to be aware of potential sources of variation in the rate of failures over time.

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