Answer: -8.51 ft^3/lbm
Explanation:
In this question, to find the change in volume, we will use the ideal gas law.
[tex]\begin{aligned}&n_{1}=1 \text { mole }\\&\mathrm{P}_{1}=20 \mathrm{psia}\\&\mathrm{T}_{1}=70^{\circ} \mathrm{F}\\&T_{1}=(70+460)^{0} \mathrm{R}\\&v_{1}=\frac{\left(0.3704 \frac{psia \cdot_{\text { } ft^{3}}}{l \mathrm{lbm} \cdot R}\right)(70+460)^{0} \mathrm{R}}{20 \mathrm{psi}}\\&v_{1}=9.816 \frac{\mathrm{ft}^{3}}{\mathrm{lbm}}\end{aligned}[/tex]
[tex]\begin{aligned}&\mathrm{n}_{2}=1 \text { mole } \\&\mathrm{P}_{2}=150 \mathrm{psia} \\&\mathrm{T}_{1}=\mathrm{T}_{2}=70^{0} \mathrm{~F} \\&\mathrm{~T}_{1}=\mathrm{T}_{2}=(70+460)^{0} \mathrm{R} \\&v_{2}=\frac{\left(0.3704 \frac{\text { psia} \cdot \mathrm{ft}^{3}}{\mathrm{lbm} \cdot R}\right)(70+460)^{0} \mathrm{R}}{150 \mathrm{psi}} \\&v_{2}=1.309 \frac{\mathrm{ft}{ }^{3}}{\mathrm{lbm}}\end{aligned}[/tex]
[tex]$$The change in volume is,$$\begin{aligned}&\Delta v=v_{2}-v_{1} \\&\Delta v=1.309-9.816 \\&\Delta v=-8.51 \frac{\mathrm{ft}^{3}}{\mathrm{lbm}}\end{aligned}\text{The negative sign shows that the gas was compressed during this process}[/tex]
Besides hev and ev motor systems themselves what other systems may use high voltage
Besides hev and ev motor systems themselves what other systems may use high voltage are the air conditioning compressor, auxiliary battery, and water pump.
Why an excessive voltage is used?
High voltages are utilized in transmission structures due to the fact a better voltage implies a decrease modern-day for a given energy of transmission. With a decrease modern-day, much less warmth is generated withinside the transmission traces and so much less electricity is wasted. Furthermore, it has superb environmental benefits.
To come up with a difficult estimate the common rated energy of the water pump is from 250 watts to 1500 watts. The smaller the water pump, much less is the wattage, much less is the energy consumption, subsequently low is the release and head.Usually, an auxiliary deliver is energy delivery that gives an auxiliary voltage. An instance will clean this up. Say you've got got a switching circuit with score of 220VAC enter and 12VDC output. Enclosure air conditioners may be designed to run on AC and DC voltages. The AC versions perform at 120, 230, 380, 400, 480, 575 and six hundred V at frequencies of 60 and/or 50 Hz.Read more about the voltage:
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the plastic region of the stress-strain curve for a metal is characterized by:
The plastic region of the stress-strain curve for a metal is mainly characterized by a power function known as the flow curve.
What is the plastic region?The plastic region of a stress-strain curve can be defined as the portion where some permanent deformation occurs in a material, even if the load is removed.
Based on scientific information and records, the plastic region of the stress-strain curve for a metal is mainly characterized by a power function known as the flow curve.
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Preferential stress will cause crystals to rotate into a preferred orientation unless the crystals are ________
Answer:
Preferential stress will cause crystals to rotate into a preferred orientation unless the crystals are Equant
Draw a circuit diagram connected in a reverse bias showing a p-n material and a battery
The Circuit Diagram is connected in a reverse bias attached below.
What is Reverse Bias?Reverse biased p-n junction diode refers to the method by which a p-n junction diode stops electric current in the presence of applied voltage.
The positive terminal of the battery is connected to the n-type semiconductor material in a reverse biased p-n junction diode, while the negative terminal is connected to the p-type semiconductor material.
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what is the last item on the vehicle starting checklist
The last item on the vehicle starting checklist before a driver begins to travel is for the driver to release the service brake.
What does it mean to release the brake?The Release Parking Brake message implies that your parking brake is said to be currently engaged and as such one needs to release the parking brake before one can be able to drive the vehicle.
Therefore, The last item on the vehicle starting checklist before a driver begins to travel is for the driver to release the service brake.
See full question below
what is the last item on the vehicle starting checklist before a driver begins to travel?
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Tech A says that the angle of the rear axle assembly companion flange should be perpendicular to the transmission output shaft. Tech B says that U-joints should be 45 degrees out of phase from one another to minimize vibration. Who is correct
The technician that's correct is technician A.
Who is a technician?It should be noted that a technician is an individual who looks after the technical equipment in a company.
In this case, Tech A says that the angle of the rear axle assembly companion flange should be perpendicular to the transmission output shaft. This is correct.
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When what is visible to end-users is a deviation from the specific or expected behavior, this is called:
When what is visible to end-users is a deviation from the specific or expected behavior, it's an error.
What is an error?It should be noted that an error means a deviation from what's expected by an individual or programmer.
In this case, when what is visible to end-users is a deviation from the specific or expected behavior, it's an error. This is a deviation.
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If the digital inputs for a supply-air fan control application indicate that the supply-air fan should be on, the controller compares the measured ________ to the set point; if this reading is lower than the setpoint, the supply-air fan speed must be increased.
If the digital inputs for a supply-air fan control application show that the supply-air fan should be ON, the controller compares the measured static air pressure to the set point.
The operation of a supply-air fan control.Basically, the controller of a supply-air fan control application is designed and developed to compare the measured static air pressure to the set point when its digital inputs indicate that the supply-air fan should be ON.
By design and configuration, if the measurement of the static air pressure is lower than the set point, the supply-air fan speed must be increased by an engineer accordingly.
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Which of the following industries is leaching used in?
a.To separate a mixture of ethanol and water
b.To separate a slurry containing chalk and water
c.To separate a metal from its ore using acid and preserving desirable products such as gold.
d.None of the above.
Leaching is used in industries to separate a metal from its ore using acid and preserving desirable products such as gold. Thus option C is the correct answer.
What is a metal?A material that quickly releases electrons to produce positive ions and has good electrical conductivity, luster, and flexibility is referred to as metal.
A chemical is extracted from a solid material that has made contact with a liquid during the leaching process. While certain chlorides are dissolved in sodium chloride solution, precious metals like gold are dissolved in cyanide solutions.
Therefore, option C separation of a metal from its ore using acid and preserving desirable products such as gold is the appropriate answer.
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what input is required from ADC to allow the INS to calculate W/V?
TAS is an important input which is required from ADC to allow the INS calculate W/V.
What is INS?INS is abbreviation for Inertial Navigation System and it can be defined as a navigation device that makes use of motion sensors, a computer, and rotation sensors, so as to continuously calculate by dead reckoning the velocity, position, and orientation of a moving object.
In the Aviation and Engineering filed, True Airspeed (TAS) is an important input which is required from ADC to allow the Inertial Navigation System (INS) calculate W/V.
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A composite wall is composed of two layers, each with constant properties. the thermal conductivity of layer 1 is twice that of layer 2. for steady-state conduction with no thermal generation, the correct temperature distribution is:
Given the indices stated above, the correct temperature distribution is: k1 = 2k2. See the definition of temperature distribution below.
What is temperature distribution?The Solution to the linear heat flow equation is what is known as thermal distribution.
It measures heat transfer with respect to normal or natural phenomena such as:
Irradiationconduction; andconvection.Learn more about temperature distribution at:
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They build bridges, buildings, dams, tunnels, tanks, power plants, transmission line towers and space satellites Group of answer choices Structural Engineer Satellite Engineer Water resource Engineer Construction Engineer
A Structural Engineer build bridges, buildings, dams, tunnels, tanks, power plants, transmission line towers and space satellites.
Who is a Structural Engineer ?A Structural Engineer can be defined as a professional who has been trained and licensed to analyze, plan and build different structures such as:
BridgesBuildingsDamsTunnelsThis ultimately implies that, the building of bridges, buildings, dams, tunnels, tanks, power plants, transmission line towers and space satellites are done by Structural Engineers.
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Design a driver circuit that should drive a a seven segment to display octal numbers
[0 up to 7]. Your work should include the following steps
1) An appropriate title
2) The truth Table
3) Simplified expressions for the appropriate circuit
4) Logical circuit for the driver.
Answer:
point hehe sorry sorry
Explanation:
I don't know
what's the voltage supplied to the light fixtures in the communication room of the manufacturing facility?
a.208V
b.120V
c.277V
d.480V
The voltage supplied in the communication room to the light fixtures can be 120 volts or 277 volts respectively.
Options B and C are the correct answers.
What is voltage?
Voltage is the electric force that makes the charges move which creates an electric current.
The light fixtures are the component of light that is being attached to the wall or a ceiling that holds any kind of lighting element. For instance, the holder of a bulb in which it is fixed is treated as a light fixture. The general voltage produces by a light fixture is 120 volts but preferable should be at 277 volts.
Therefore, all the volts except which is mentioned in options A and D cannot correspond to the voltage of light fixtures.
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When reassembling a locking hub mechanism, it is a good idea to replace the: Group of answer choices retaining plate. all snap rings. bearing seal. axle shafts.
When reassembling a locking hub mechanism, it is a good idea to replace the bearing seal.
What is a bearing seal?It should be noted that the bearing seal is used to prevent contaminants from reaching the inside of the parts and also from preventing the lubricant leaking.
In this case, when reassembling a locking hub mechanism, it is a good idea to replace the bearing seal.
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How many gyros and how many accelerometers are in the INS?
The number of gyros and accelerometers that are in the INS are three (3) gyros and two (2) accelerometers respectively.
What is INS?INS is abbreviation for Inertial Navigation System and it can be defined as a navigation device that is designed and developed to use motion sensors, a computer, and rotation sensors, so as to continuously calculate by dead reckoning the velocity, position, and orientation of a moving object.
Based on scientific information and records, the number of gyros and accelerometers that are in the INS are three (3) gyros and two (2) accelerometers respectively.
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. In the counter-current heat exchanger, the liquid food is cooled from 73°C to 38°C at the rate of 2500 kg h', using water at 15°C which leaves the heat exchanger at 40°C. The pipework 2.5cm in diameter is constructed from stainless steel 3mm thick; the surface film heat transfer coefficients are 1200 Wm³K on the liquid food side and 3000Wm³K-¹ on the water side of the pipe. Calculate the Overall heat transfer coefficient and the length of pipe required (Note: specific heat of water and liquid food is 4.18 kj/kg°C and 3.17 kj/kg C respectively) (6marks).
The Overall heat transfer coefficient and the length of pipe required was 9.48x10 J and the length of pipe required is 57m.
What is the supposed via way of means of heat transfer?Warmness transfer, all or any of numerous forms of phenomena, taken into consideration as mechanisms, that deliver power and entropy from one place to another. The unique mechanisms are commonly known as convection, thermal radiation, and conduction.
1/U= 1/ha+x/k+1/hk=1/1200+3/21+1/3000= 1.31 x 10^-3.Now U= 763.6 Wm^-2-C-1.To length of pipe required= Q = UAdelta m.= A=3.142xDl= l =4.48/3.142x0.025=57 m.Read more about the length :
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Which thematic group is involved in the transmission and generation of electrical power?
a.Communication Systems
b.Control Systems
c.Computer Systems
d.Energy Systems
e.Electronic Systems
Answer:
The 17 distinct years Mariah Carey has topped Billboard's Hot 100, spanning an historic four consecutive decades:
1990
1991
1992
1993
1994
1995
1996
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the best way to complete a turn requires that you
The best way to complete a turn needs that a person accelerate slowly about halfway through the turn.
What should you do when preparing to turn?If a person wants to prepare to turn, a person need to lower their speed and stay by the far right as soonest.
Therefore, The best way to complete a turn needs that a person accelerate slowly about halfway through the turn.
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8) Microsoft Windows is
A. the most popular computer OS
B. a system software that manages computer
C. a collection of computer programs or applications along with its related data
Technician A states; that bent lift arms can be straightened.
Technician B states; that worn lift pads should be replaced.
Who is correct?
Both technician "A" and "B"
Neither technician "A" nor "B"
Technician "A" only
Technician "B" only
What is the first test you should do when checking the charging system?
Answer:
Connect the test light in series with the negative post, and start pulling feed wires. The first to check is the heavy charging wire from the alternator. A bad or leaky diode in an alternator is a very common source of overnight battery drain. Connect wires one at a time to see what lead is drawing current.
Technician A uses heat shrink tubing to insulate and seal soldered wire connections. Technician B wraps the soldered connection with electrical tape. Who is correct
The technician that's correct is Technician A.
Who is a technician?A technician is an individual that's employed to look after the technical equipments in an organization.
In this case, Technician A uses heat shrink tubing to insulate and seal soldered wire connections. He is correct.
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Determine the general lighting load for a two-story office building that measures 125 feet by 150 feet.
The general lighting load for a two-story office building that measures 125 feet by 150 feet is 112, 500 sq ft.
What is lighting load?
Lighting loads are the energy used to power electric lights and they make up nearly a third of US commercial building energy use.
Lighting load = n(LW)
where;
L is length of the buildingW is width of the buildingn is number of story buildingFor one story building, = 3
For two story building, n = 6
Lighting load = 6 x 125 x 150 = 112, 500 sq ft.
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Engine vacuum is being discussed. Technician A says that when the engine is operating under light loads, engine vacuum is low. Technician B says that engine vacuum is high when the engine is operated under heavy loads. Who is correct
Neither of the two technicians (Technician A and Technician B) is correct.
What is an engine vacuum?An engine vacuum can be defined as a type of engine which is designed and developed to derive its force from air pressure that's being pushed against one side of the piston of an automobile, while having a partial vacuum on the other side.
In this scenario, we can infer and logically conclude that neither of the two technicians (Technician A and Technician B) is correct because engine vacuum is high when the engine is operating under light loads and vice-versa.
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4.5% complete Question Select the methods of containment based on the concept of isolation. (Select all that apply.) A.Blackhole B.Sinkhole C.Physical disconnection/air gapping D.Sandboxing
Answer:
A. Blackhole
C. Physical disconnection/air gapping
D. Sandboxing
Here are the methods of containment based on the concept of isolation:
Physical disconnection/air gapping is the most effective method of isolation, separating the infected system from the rest of the network.
How does sandoxing work?Sandboxing isolates the infected system in a controlled environment, allowing analysis and cleaning without affecting the rest of the network. Quarantine isolates the infected system from the rest of the network until it can be cleaned, preventing it from infecting other systems.
The following methods are not based on the concept of isolation:
Blackhole: This is a method of redirecting malicious traffic to a dead end. This does not isolate the infected system, but it does prevent the malicious traffic from reaching other systems on the network.
Sinkhole: This is a method of redirecting malicious traffic to a honeypot. This does not isolate the infected system, but it does allow security researchers to collect information about the malicious traffic.
Therefore, the methods of containment based on the concept of isolation are Physical disconnection/air gapping, Sandboxing, and Quarantine.
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Silicon chips are used primarily in ?
Answer:
4th generation computers
Silicon chips are used primarily in relays. The correct option is B.
What are silicon chips?The brain of the device is made up of silicon chips, which control all of its internal mechanisms. Tablets, smartphones, and laptops are a few examples.
The invention of silicon chips led to the revolutionization and miniaturization of technology, as well as the creation of the contemporary computer.
Instead of the slow computers that used to take up entire rooms, it made it possible to create fast computers that fit in people's homes and eventually portable computers.
Relays are electrically powered switches that operate by receiving electrical signals from other sources to open and close circuits.
Therefore, the correct option is B. relays.
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The question is incomplete. Your most probably complete question is given below:
A. integrated circuits
B. relays
C. motors
D. transformers
The A/C system refrigerant charge amount needs to be determined on a late-model vehicle. Technician A says that the emissions label contains the refrigerant charge amount. Technician B says the RPO decal contains the refrigerant charge amount. Who is correct
Technician A is correct when he says that the emissions label contains the refrigerant charge amount while Technician B is wrong.
What is emission label?An emissions label is known to be a kind of sticker that is often used by EPA to have manufacturers show that their non-road engines meet the needed emission requirements.
In terms of AC system, they are found under the hood of the AC unit and as such, Technician A is correct when he says that the emissions label contains the refrigerant charge amount while Technician B is wrong.
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Hydraulic vane phaser
Answer:
Vane pumps are hydraulic pumps that operate at very low noise levels. Hydraulic vane pumps operate with much lower flow pulsation, i.e. constant flow. As such, vane pumps produce less noise while maintaining a relatively high speed of up to 3,000 rpm.
Explanation:
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An Exterior Insulation Finish System (EIFS) shall terminate a minimum ___________ inches above the finished ground level.
Answer:
An Exterior Insulation Finish System (EIFS) shall terminate a minimum 6 inches above the finished ground level.
