A power system supplying a steady power of 100 MW via a radial feeder is found to be occasionally prone to a 107 MW power demand transient surge of 10 millisecond duration. Making any assumptions as necessary design an inertial mass unit capable of supply the transient. Expected: outline design, calculations and discussion of operation of the inertial mass system
Answers
IntroductionThe power systems encounter transients due to the faults, switching operations, and other disturbances that occur on the power systems. These transients affect the system parameters like voltage, current, and frequency.
Hence, the power system should be protected by designing and applying suitable protection devices that can withstand and protect the system from such transients.The inertial mass unit is one of the protection systems that help to maintain the balance between the power generated and power consumed by the system.
The design and calculations for the inertial mass unit are discussed in detail. The energy stored by the flywheel and the flywheel speed control are calculated. A motor rated at 3.22 x 106 N-m is required to fulfill the torque requirement during the surge of 107 MW for 10 ms.
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Related Questions
There is an AC series circuit that is constructed of a 150.0-ohm resistor along with 300.0 ohm inductive reactance and 200.0 ohm capacitive reactance. What is the difference in phase between the current and resistor voltage of the circuit
Answers
Answer:
0°
Explanation:
The resistor voltage has the same phase as the circuit current. There is no phase difference.
Answer:
0° (zero degree)Explanation:
the difference in pjase between the current and resistor voltage of the given 150.0 ohm, 300.0 ohm and 200.0 ohmRead the following paragraph as quickly as you can, and see if you encounter any diculties.
Aoccdrnig to rscheearch at an Elingsh uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer is at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae we do not raed ervey lteter by itslef but the wrod as a wlohe.
This has been presented as an example of a principle of human reading compre-hension. If you keep the rst letter and the last letter of a word in their correct positions, then scramble the letters in between, the word is still quite readable in the context of an accompanying paragraph. However, it seems that this is a bit of a myth and not truly based on solid research.1 In short, for longer words the task is much more dicult. Nonetheless, we are going to imitate the process on some English text.
The task will be to read in a paragraph from a le, scramble the internal letters of each word, and then write the result to a le. Handling punctuation is tricky. You are required to deal with punctuation that comes at the end of a word (period, question mark, exclamation, etc.)|that is, punctuation is left untouched and does not count as the nal unscrambled letter. Optionally, one can deal with the more dicult task of handling all punctuation, such as apostrophes for possessives or hyphenated words. Truly randomizing the order of letters is a task for later in the text, but we can do some reasonable approximations now. Attacking this problem in a divide-and-conquer way should begin by writing code to scramble the letters in a word.
Create a dierent solution by dening scrambling functions for each of the following approaches: (Each approach counts as a dierent problem)
(a) For each letter choose a random number and rotate that letter by the random amount. Import random and use the random.randint(a,b) function where `a' and `b' dene the range of random numbers returned.
(b) Implement a dierent method to scrambling the letters. You must clearly describe in the comments the process to scramble the letters in place.It must be dierent than the process from part a.
Answers
Answer:
a
Explanation:
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1 point
Technician A
says
that one benefit of a CVT over an automatic transmission is that it
improves fuel economy.
Technician B
says
that one benefit of a CVT over an automatic
transmission is that it provides a smooth ride since there is no gear shifting hesitation or
jolt. Who is correct?
Technician A
O Technician B
Both Technician A and Technician B
Neither Technician A nor Technician B
Answers
Technicians A and B have correctly identified the benefits of a Continuously Variable Transmission (CVT) over an automatic transmission.
Why is this?By allowing engines to operate at their most efficient RPM range, a CVT can help improve fuel economy whilst avoiding gear shifting issues or delays that traditional automatic transmissions may face, as mentioned by Technician B which can also provide riders with heightened comfort throughout the journey.
Consequently, both technicians are correct in recognizing various advantages linked with this type of transmission system.
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An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and the evaporator at −12°C. Determine this system's COP and the amount of power required to service a 150 kW cooling load.
Answers
Answer:
COP = 4.846
Explanation:
From the table A-11 i attached, we can find the entropy for the state 1 at -12°C.
h1 = 243.3 KJ/Kg
s1 = 0.93911 KJ/Kg.K
From table A-12 attached we can do the same for states 3 and 4 but just enthalpy at 800 KPa.
h3 = h4 = hf = 95.47 KJ/Kg
For state 2, we can calculate the enthalpy from table A-13 attached using interpolation at 800 KPa and the condition s2 = s1. We have;
h2 = 273.81 KJ/Kg
The power would be determined from the energy balance in state 1-2 where the mass flow rate will be expressed through the energy balance in state 4-1.
W' = m'(h2 - h1)
W' = Q'_L((h2 - h1)/(h1 - h4))
Where Q'_L = 150 kW
Plugging in the relevant values, we have;
W' = 150((273.81 - 243.3)/(243.3 - 95.46))
W' = 30.956 Kw
Formula foe COP is;
COP = Q'_L/W'
COP = 150/30.956
COP = 4.846
what give will a customer who orders the book ""shortest poems"" receive? use the actual book retail value to determine the gift.
Answers
The customer who orders the book "Shortest Poems" will receive a gift based on the actual retail value of the book.
When a customer places an order for the book "Shortest Poems," they can expect to receive a gift that is determined by the actual retail value of the book. The value of the gift is likely to be proportional to the price of the book, encouraging customers to make a purchase and enhancing their overall experience.
Retailers often offer promotional incentives to attract customers and increase sales. Providing a gift based on the book's value serves as a bonus for customers and adds value to their purchase. This approach helps to create a positive impression, incentivize future purchases, and establish customer loyalty.
The specific nature of the gift may vary depending on the retailer's policies and marketing strategies. It could range from additional books, bookmarks, author-signed copies, or related merchandise. By aligning the gift with the book's theme or genre, the retailer can enhance the customer's satisfaction and ensure a memorable shopping experience.
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why is tubing sometimes coiled when installed in a car or vechile
Answers
Answer:
Coiled tubing is often used to carry out operations similar to wire lining.
All of the following are advantages of using a pressure transducer rather than a vacuum gauge EXCEPT:
Answers
Question:
All of the following are advantages of using a pressure transducer rather than a vacuum gauge EXCEPT:
A. greater accuracy.
B. easier identification of the cylinder.
C. measuring higher pressures.
D. ability to see the levels graphically
Answer:
The correct answer is D) ability to see the levels graphically
Explanation:
The above question derives from the Rudiments of Automotive Technology.
The function of the pressure transducer is to enable the diagnostic who is testing the engine vacuum to detect the cylinder with a faulty vacuum.
The pressure transducer does allow its user to see the vacuum graphically NOT the levels.
Cheers.
Which incident taught us the importance of working with our neighbors to inform them and protect them from the risks in our facilities? (Select the best answer and then click 'Submit.') Bhopal Imperial Sugar Tesoro Refinery Flixborough
Answers
The incident that taught us the importance of working with our neighbors to inform them and protect them from the risks in our facilities is Bhopal.
Bhopal was an industrial town in central India that became synonymous with the world's worst industrial disaster. A toxic gas leak in a pesticide factory owned by Union Carbide, a US chemical company, killed thousands of people instantly in December 1984. The gases affected hundreds of thousands of people, some of whom were exposed to it for years. It was a horrific tragedy that no one could ever forget. This incident taught us that the health and well-being of communities surrounding chemical facilities are crucial and should be prioritized.
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Steam enters an adiabatic turbine at 6 MPa, 600°C, and 80 m/s and leaves at 50 kPa, 100°C, and 140 m/s. If the power output of the turbine is 5 MW, determine (a) the reversible power output and (b) the second-law efficiency of the turbine. Assume the surroundings to be at 25°C.
Answers
Answer:
(a) the reversible power output of turbine is 5810 kw
(b) The second-law efficiency of he turbine = 86.05%
Explanation:
In state 1: the steam has a pressure of 6 MPa and 600°C. Obtain the enthalpy and entropy at this state.
h1 = 3658 kJ/kg s1=7.167 kJ/kgK
In state 2: the steam has a pressure of 50 kPa and 100°C. Obtain the enthalpy and entropy at this state
h2 = 2682kl/kg S2= 7.694 kJ/kg
Assuming that the energy balance equation given
Wout=m [h1-h2+(v1²-v2²) /2]
Let
W =5 MW
V1= 80 m/s V2= 140 m/s
h1 = 3658kJ/kg h2 = 2682 kJ/kg
∴5 MW x1000 kW/ 1 MW =m [(3658-2682)+ ((80m/s)²-(140m/s)²)/2](1N /1kg m/ s²) *(1KJ/1000 Nm)
m = 5.158kg/s
Consider the energy balance equation given
Wrev,out =Wout-mT0(s1-s2)
Substitute Wout =5 MW m = 5.158kg/s 7
s1= 7.167 kJ/kg-K s2= 7.694kJ/kg-K and 25°C .
Wrev,out=(5 MW x 1000 kW /1 MW) -5.158x(273+25) Kx(7.167-7.694)
= 5810 kW
(a) Therefore, the reversible power output of turbine is 5810 kw.
The given values of quantities were substituted and the reversible power output are calculated.
(b) Calculating the second law efficiency of the turbine:
η=Wout/W rev,out
Let Wout = 5 MW and Wrev,out = 5810 kW
η=(5 MW x 1000 kW)/(1 MW *5810)
η= 86.05%
1. What's an object in your everyday life that has a lot of Kinetic Energy? How do you know it has a lot?
"Something that has a lot of Kinetic Energy is _____. I know this because..."
2.What's an object in your everyday life that has a lot of Potential Energy? How do you know it has a lot?
"Something that has a lot of Potential Energy is _____. I know this because..."
Answers
Answer:
. What's an object in your everyday life that has a lot of Kinetic Energy? How do you know it has a lot?
"Something that has a lot of Kinetic Energy is a plane and a baseball . I know this because the baseball gets energy to it when its thrown which is giving in kinetic energy".
2.What's an object in your everyday life that has a lot of Potential Energy? How do you know it has a lot? "an object that has a lot of potential energy is Water that is behind a dam. A car that is parked at the top of a hill. A yoyo before it is released. I know this because
the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors."
IF YOUR VEHICLE BREAKS DOWN, YOU SHOULD?
Answers
Answer:
1. TURN ON YOUR HAZARD/EMERGENCY LIGHTS
Turn on your hazard lights to warn other drivers as soon as you sense something's wrong. Keep them on until help arrives, recommends the National Motorists Association (NMA).
2. SLOW DOWN AND PULL OFF THE ROAD
Aim for the right shoulder of the road. Consumer reports recommends that you pull over to a safe, flat location that is as far away from moving traffic as possible.
3. TURN YOUR WHEELS AWAY FROM THE ROAD AND PUT ON THE EMERGENCY BRAKE
The California Department of Motor Vehicles (DMV) recommends pulling your emergency brake, sometimes called the parking brake. If you have to park on a hill or slope, turn the car's wheels away from the road to help prevent the care from rolling into traffic, says the California DMV.
4. STAY IN YOUR VEHICLE
If you're on a highway or crowded road, the Insurance Information Institute (III) recommends that you avoid getting out of your vehicle to look at the damage or fix a mechanical problem. If you need to get out of the car, get your vehicle to a safe place and make sure the road around you is completely clear. If you're stopped on the right-hand side of the road, get out through the passenger-side door.
5. BE VISIBLE
Once you're safely out of the vehicle, prop up your hood to let other drivers know they should proceed with caution. This will alert other drivers that you're broken down, according to the NMA.
6. SET UP FLARES OR TRIANGLES
Place flares or triangles with reflectors behind your car to alert other drivers to the location where you've stopped, says the III.
7. CALL FOR HELP
Call or use an app to get a tow truck, mechanic or roadside assistance to come help. your insurance company or other provider who may be able to help. If you're in an emergency situation or are not sure who to contact, call 911 or the local police for help.
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A network administrator is enabling services on a newly installed server. Which two statements describe how services are used on a server? (Choose two.)
Answers
Services are used on a server to provide specific functionalities or applications that can be accessed and utilized by client devices or other servers within the network.
A network administrator enabling services on a newly installed server involves the following two key aspects:
1. Services are used on a server to provide specific functionalities or applications that can be accessed and utilized by client devices or other servers within the network.
2. When an administrator enables services on a server, they are essentially configuring and activating those specific services, making them available for use within the network infrastructure.
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4. Three conveyor belts are arranged to transport material and the conveyor belts must be started in reverse sequence (the last one first and the first one last) so that the material does not get piled on to a stopped or slow-moving conveyor. Each belt takes 45 seconds to reach full speed. Design a ladder logic that would control the start and stop of this three-conveyor system
Answers
A normally open (NO) start push button (PB1) is connected in parallel with a normally closed (NC) stop push button (PB2).
When PB1 is pressed and PB2 is not pressed, the output coil (O:2/0) of the conveyor 1 motor contactor is energized, starting the conveyor 1.This ladder logic design ensures that the conveyor belts are started in reverse sequence and that each conveyor stops once it reaches full speed. The start push buttons (PB1, PB3) should be pressed sequentially to start the conveyor belts, and the stop push buttons (PB2, PB3, PB4) can be pressed at any time to stop the respective conveyors. The limit switches (LS1, LS2, LS3) are used to detect when each conveyor reaches full speed and initiate the stop sequence.
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Provide counterexamples to the following statements. a. If a and b are integers where a| b and b a, then a-b. b. If? > 0 then n > 0. C. If n is an even number, then n2 + 1 is prime. d. If n is a positive integer, then n>n
Answers
a. Counterexample: a = 4, b = 8; a|b and b = a, but a-b = -4.
b. Counterexample: ? = -1 and n = 0; ? > 0, but n > 0 is false.
c. Counterexample: n = 4; n is an even number, but n2 + 1 = 17, which is not prime.
d. Counterexample: n = 0; n is a positive integer, but n = 0 and 0 > 0 + 1 is false.
What is Integer?
Integer is a data type used in programming to represent whole numbers. It is a numerical data type that can be positive, negative, or zero. Integers are the building blocks of programming, and they are often used in calculations and mathematical operations. Integer values cannot contain any fractional or decimal components. They can be represented in various formats, including hexadecimal, octal, decimal, and binary formats. Integer values are usually stored in a computer's memory as 32-bit or 64-bit words, depending on the system.
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When is creep important to metals
Answers
Answer:
Creep is a type of metal deformation that occurs at stresses below the yield strength of a metal, generally at elevated temperatures. One of the most important attributes of any metal is its yield strength because it defines the stress at which metal begins to plastically deform.
application's of kirchoff's law
Answers
Que 18. In a centrifugal pump work done by impeller is 350 kW and manometric efficiency is 58 %. Find power delivered by the pump.
Answers
To find the power delivered by the pump, we can use the concept of pump efficiency. The power delivered by the pump is given by the equation:
Power Delivered = Power Input / Efficiency Given: Work done by the impeller (Power Input) = 350 kW Manometric Efficiency = 58% = 0.58 Now, let's calculate the power delivered by the pump: Power Delivered = Power Input / Efficiency Power Delivered = 350 kW / 0.58 Power Delivered ≈ 603.448 kW Therefore, the power delivered by the pump is approximately 603.448 kW. The power delivered by the pump is 603.45 kW. This is calculated by dividing the work done by the impeller (350 kW) by the manometric efficiency (58%) and multiplying by 100The manometric efficiency of a centrifugal pump represents the ratio of the energy imparted to the fluid (work done by the impeller) to the actual energy added to the fluid (power delivered by the pump). It is expressed as a percentage.
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10.46 A 65-kVA load with a lagging power factor is combined with a 25-kVA synchronous motor load which operates at pf = 0.60 leading. Find the power factor of the 65-kVA load, if the overall power factor is 0.85 lagging. ??? Ans. 0.585 lagging
Answers
Answer:
Read Below
Explanation:
Apparent power (volt-amperes) is the trigonometric sum of Real power (watts) and reactive power (volt-amperes reactive - VARs). Stated mathematically: VA squared = watts squared plus VARs squared
similarly, power factor, the ratio of real power to apparent power, is the cosine of the angle between the real power leg and apparent power hypotenuse of a right triangle (Reactive power being the other leg).
Just use these relationships and a bit of high school trigonometry and you can calculate the apparent power and power factor for the system you are describing.
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The power factor of the 65-kVA load, if the overall power factor is 0.85 lagging is 0.585 lagging.
What is Apparent energy?
Apparent energy (volt-amperes) is the trigonometric sum of Real energy (watts) and reactive energy (volt-amperes reactive - VARs). Stated mathematically: VA squared = watts squared plus VARS squared similarly, energy component, the ratio of actual energy to obvious energy, is the cosine of the perspective among the actual energy leg and obvious energy hypotenuse of a proper triangle (Reactive energy being the opposite leg).
Just use those relationships and a chunk of excessive college trigonometry and you may calculate the obvious energy and energy component for the machine you're describing.
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Water at 400 kPa with a quality of 75% has its pressure raised 200 kPa in a constant-volume process. What is the new state (x, T)
Answers
In a constant-volume process, the specific volume remains constant. Given that the initial pressure of water is 400 kPa and the quality is 75%.
We can assume it is in the saturated liquid-vapor mixture state. To determine the new state, we need to find the final pressure. Since the process is constant volume, the quality remains unchanged.
The final pressure would be the initial pressure plus the increase of 200 kPa, resulting in 600 kPa.
Therefore, the new state of water is 75% quality with a pressure of 600 kPa, while the temperature cannot be determined without additional information.
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5. According to the second law that entropy can never be destroyed, will entropy always increase from state 1 to state 2 after a process regardless of various complications brought by different systems? Why?
Answers
According to the second law of thermodynamics, the total entropy of a closed system will always increase or remain constant. This means that the entropy of a system can never decrease over time, and any process that occurs will result in an overall increase in entropy.
This law is based on the statistical interpretation of entropy, which describes the degree of disorder or randomness within a system. The more disordered a system is, the higher its entropy, and any process that moves the system towards a more disordered state will result in an increase in entropy.
The second law of thermodynamics is a fundamental law of nature and applies to all physical processes, regardless of the nature of the system or the specific complications involved. While there may be some temporary fluctuations or localized decreases in entropy within a system, the overall trend will always be towards an increase in entropy.
In conclusion, the second law of thermodynamics predicts that entropy will always increase or remain constant over time, regardless of the specific details or complications of a system or process. This law is a fundamental principle of nature and has important implications for understanding the behavior of physical systems and processes.
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Water (68°F) flows at the rate of 22. 5 cfs (ftIs) from reservoir A to reservoir B through two cast iron (e = 0. 001 ft) pipes connected in series. If Li-2. 500 ft. Di = 2. 0 ft. , L2-500 ft, and D2 1. 5 ft, determine the difference in water surface elevations. The coefficient of sudden con traction from pipe 1 to pipe 2 is 0. 36 and assume fully turbulent flow (i. E. Fdepends on elD only) Figure P4. 1. 5
Answers
The difference in water surface elevations between reservoir A and reservoir B is 1.88 ft, with the negative sign indicating that reservoir B is at a higher elevation than reservoir A.
How did we get the value?Determining the difference in water surface elevations between reservoir A and reservoir B, use the Bernoulli equation, which relates the pressure, velocity, and elevation of a fluid flowing in a pipe.
The Bernoulli equation can be expressed as:
P1/γ + V1²/(2g) + z1 = P2/γ + V2²/(2g) + z2 + hf
where P is the pressure of the fluid, γ is the specific weight of the fluid, V is the velocity of the fluid, g is the acceleration due to gravity, z is the elevation of the fluid, and hf is the head loss due to friction.
Supposing there is fully turbulent flow, use the Darcy-Weisbach equation to calculate the head loss due to friction:
hf = f * (L1/D1) * (V1²/2g)
where f is the Darcy-Weisbach friction factor, L is the length of the pipe, and D is the diameter of the pipe.
We can also use the coefficient of sudden contraction to relate the velocities at the entrance and exit of the second pipe:
V2 = C * √(V1² - Vc²)
where C is the coefficient of sudden contraction and Vc is the velocity of the fluid at the entrance of the second pipe.
Substitute the given values and solve for the difference in water surface elevations:
P1 = P2 (since the two reservoirs are open to the atmosphere, the pressures cancel out)
γ = 62.4 lb/ft³ (the specific weight of water)
Vc = 22.5 cfs / (π/4 * (2 ft)²) = 1.41 ft/s (the velocity of the fluid at the entrance of the second pipe)
f = 0.001 (the friction factor for cast iron pipes)
C = 0.36 (the coefficient of sudden contraction)
g = 32.2 ft/s² (the acceleration due to gravity)
L1 = L2 = 500 ft (the lengths of the pipes)
D1 = 2 ft and D2 = 1.5 ft (the diameters of the pipes)
V1 = 22.5 cfs / (π/4 * (2 ft)²) = 2.83 ft/s (the velocity of the fluid at the entrance of the first pipe)
V2 = C * sqrt(V1² - Vc²) = 1.79 ft/s (the velocity of the fluid at the exit of the second pipe)
Using the Bernoulli equation:
z1 - z2 = (V2² - V1²)/(2g) - hf
Substituting the values:
z1 - z2 = (1.79² - 2.83²)/(2 * 32.2) - 0.001 * 500/2 * (2.83²)/(2 * 32.2) - 0.001 * 500/2 * (1.79^2)/(2 * 32.2)
z1 - z2 = -1.88 ft
Therefore, the difference in water surface elevations between reservoir A and reservoir B is 1.88 ft, with the negative sign indicating that reservoir B is at a higher elevation than reservoir A.
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Sealer come in two general varieties
Answers
Answer:
red RTV is sealant for areas that get hot black RTV is for oily surfaces like oil pans and head covers
Explanation:
A light weight vehicle traveling 50 mph can stop in approximately
a. 200 meters.
b. 5 blocks.
c. 200 feet.
d. 6 seconds.
Answers
A light weight vehicle traveling 50 mph can stop in approximately 200 feet.
How a car break works?
The break system of a car is composed by several items that are always working together to slow down and bring a vehicle to a complete stop. It also has the function of keeping the car stationary when it is parked. In general, this system has two manual activation modes: the lever and the pedal, with the exception of vehicles adapted for people with disabilities.
Most vehicles today use the disc brake system. Disc brakes work by using pads, which are held inside a hydraulic caliper, receiving pressure to brake. Such pads generate friction on a disc, which makes the vehicle stop permanently.
The drum brake is another type, being older and dependent on the famous linings to cause friction in the wheel and stop the vehicle. A hydraulic cylinder makes the plies move inside the drum, which is a hollow part fastened with screws and attached to the wheels. This type of brake is on the rear wheels, for the most common models.
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A pool of contaminated water is lined with a 40 cm thick containment barrier. The contaminant in the pit has a concentration of 1.5 mol/L, while the groundwater circulating around the pit flows fast enough that the contaminate concentration remains 0. There is initially no contaminant in the barrier material at the time of installation. The governing second order, partial differential equation for diffusion of the contaminant through the barrier is: dC
Answers
This question is incomplete, the complete question is;
A pool of contaminated water is lined with a 40 cm thick containment barrier. The contaminant in the pit has a concentration of 1.5 mol/L, while the groundwater circulating around the pit flows fast enough that the contaminate concentration remains 0. There is initially no contaminant in the barrier material at the time of installation. The governing second order, partial differential equation for diffusion of the contaminant through the barrier is:
dC/dt = D( d²C / dz²)
where c(z,t) represent the concentration of containment of any depth into the barrier at anytime and D is the diffusion coefficient (a constant) for the containment in the barrier material.
a) write all boundary and initial conditions needed to solve this equation for C(z, t)
b) Find the steady state solution (infinite time) for C(z)
Answer:
a) At t = 0, z= 0, c = 1.5 mol/L
at t =0, z = 0.4m, c = 0 mol/L
b) C(z) = z² - 4.15z + 1.5
Explanation:
a)
The boundary and initial conditions are as follows
At t = 0, z= 0, c = 1.5 mol/L
at t =0, z = 0.4m, c = 0 mol/L
b)
The governing second order, partial differential equation for diffusion of the contaminant through the barrier is :
(dC/dt) = D*(d²C/dz²) ..............equ(1)
For steady state, above equation becomes,
(d²C/dz²) =0
Integrating above equation,
(dC/dz) = Z + C1 { where C1 is integration constant) }
again integrating above equation,
C = z² + C1*z + C2 ...................equ(2)
applying boundary condition : at t =0, z= 0, c = 1.5 mol/L, to above equation
C = z² + C1*z + C2
1.5 = 0 + 0*0 + c2
C2 = 1.5
applying boundary condition : at t =0, z= 0.4m, c = 0 mol/L, to equation (2) ,
0 = 0.4² + C1*0.4 + 1.5
0 = 0.16 + 0.4C1 + 1.5
0.4C1 = - 1.66
C1 = -1.66/0.4
C1 = -4.15
So, the steady state solution for C(z) is:
C(z) = z² - 4.15z + 1.5
describe an engineering advance that has led to greater knowledge about the solar system
Answers
Answer:
Space Rovers
Explanation:
The engineering advancement of the invention space rovers has changed space exploration tremendously. The first space rover ever to go out onto another planet was made by NASA and put on mars to learn more about the red planet and see if there where any plausible signs of past or maybe even present life. This mission was incredibly successful and for the first time in space exploration history, there was a spacecraft that you could move around that could with do the conditions of the planet for weeks, months, sometimes years at a time, moving around taking pictures and constantly collecting data. This was revolutionary for scientists, this way they could get copious amounts of information just on rover and not having to send multiple crafts only to die in the first few hours but sending back a relative amount of information. With rovers you can have them collect samples and bring the back to earth, not something that could’ve been done without a human, until rovers. They have completely changed and improved collecting data from other planets and have been one of the most revolutionary inventions when it comes to space exploration.
This is what I put for the answer, hope it helps in some way.
the bourdon tube reacts to changes in group of answer choices a. Pressure. b. Temperature.c. Voltage.d. Current
Answers
The Bourdon tube is sensitive to changes in pressure and serves as a reliable method for pressure measurement in various applications across industries.
The Bourdon tube is a mechanical device used to measure pressure. It consists of a curved, hollow metal tube that tends to straighten when subjected to internal pressure. This change in shape is the basis for its operation as a pressure measurement tool.
The Bourdon tube is typically connected to the system or process whose pressure needs to be measured. As the pressure within the system increases or decreases, the Bourdon tube responds by either straightening or curving further. This motion is then translated into a corresponding reading on a pressure gauge or other measurement device.
It is important to note that the Bourdon tube is specifically designed to detect changes in pressure and not other variables such as temperature, voltage, or current. While other types of sensors or devices may be used for measuring these other quantities, the Bourdon tube is primarily used for pressure measurement due to its mechanical properties and responsiveness to pressure changes.
In summary, the Bourdon tube is sensitive to changes in pressure and serves as a reliable method for pressure measurement in various applications across industries.
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1)What are the three previous manufacturing revolutions Mr. Scalabre mentions? When did these take place?
2)Why does Mr. Scalabre believe we are not growing in productivity? How do we turn these shortcomings into the next big manufacturing revolution?
3)How is robotics making an impact in productivity?
4)How has 3D printing made an impact in productivity?
5)What role do you feel engineers and experts in technology will play in this next revolution? What are some other ways they will contribute to increasing productivity?
Answers
The three previous manufacturing revolutions that Mr. Scalabre mentioned and their year of occurrence are:
The steam engine in the mid-19th CenturyThe mass-production model in the early 20th CenturyThe first automation wave in the 1970sWhat is a Manufacturing Revolution?This refers to the process of change from a handicraft economy to industry production-based production.
Hence, we can see that Mr. Scalabre believes we are not growing in productivity because there has not been enough automation to perform the tasks needed.
The effect of robotics is making an impact on productivity because a lot of complex, difficult tasks are done by machines.
3D printing has made an impact on productivity because there is a reduction in the pressing cycle and errors due to negligence are reduced.
The role the engineers have to play in the next revolution is that they would have to produce mathematical model that can be used to produce better AIs
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4. Employees are not responsible for thelr own safety whlle at work.
A) O True
B) O False
Answers
The statement "Employees are not responsible for their own safety while at work" is false because Employees most certainly are responsible.
What is Occupational safety?A multidisciplinary discipline dealing with the safety, health, and welfare of individuals at work is known as occupational safety and health, often known as occupational health and safety, occupational health, or occupational safety.
An environment that is safe and healthy for workers may minimize injury and sickness expenses, lower levels of absenteeism, boost output and quality, and improve employee morale. In other words, safety benefits the business.
Thus, the statement "Employees are not responsible for their own safety while at work" is false because Employees most certainly are responsible.
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A logic circuit with 3 gates and 2 inputs. The circuit will be read from the final output to the inputs.
The final AND gate has two inputs, the gate has output R.
The first input to the final AND gate is the output from an OR gate.
The OR gate has two inputs.
The first input to the OR gate is P.
The second input to the OR gate is Q.
The second input to the final AND gate is the output from a NOT gate.
The NOT gate has one input.
The input to the NOT gate is Q.
input signals:
P = 0 and Q = 1
R = __________-
Answers
Answer:
R = 0
Explanation:
The output R is the result of the function ...
R = (P+Q)·Q'
This simplifies to ...
R = PQ' + 0
R = PQ'
The result R will be the AND of P=0 and Q'=(1-1)=0. Any AND function with a 0 input will have a 0 output.
R = 0
Estimate properties and pipe diameter Determine the diameter of a steel pipe that is to carry 2000 gal/min of gasoline with a pressure drop of 5 psi per 100 ft of horizontal pipe. Pressure drop is a function of flow rate, length, diameter, and roughness. Either iterative methods OR equation solvers are necessary to solve implicit problems. Total head is the sum of the pressure, velocity, and elevation. What is the density of gasoline
Answers
Answer:
Diameter of pipe is 0.535 ft
Explanation:
see attachment, its works out 1st half