g describe the process of generating power from hydroelectric power. explain in detail how the dam in a hydropower help obtain energy and how it is converted before reaching your home to be consumed as electricity.
Answers
The process of hydroelectric power generation is water turning the turbine which creates kinetic energy electricity conversion in the powerhouse which then transferred to the transformers and then distributed to the power lines.
Hydroelectric power works by water moving through a downstream hole in the dam rotating the turbine creating an energy called kinetic energy, and then the kinetic energy resulted from the turbine rotation is converted into electricity in the generator powerhouse which will then be transferred to the transformer which then is distributed to the electrical power lines which will then be distributed to homes and buildings across the city.
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Related Questions
If someone told you that a certain AC circuit was a capacitive, you would know that in that circuit the current
A) current and voltage are zero
B) leads the voltage
C) and voltage are in phrase
D) lags the voltage
Answers
Answer:
B) leads the voltage
Explanation:
One way to think about it is that the current causes charge to be accumulated on the capacitor, changing its voltage. The current must be non-zero before the voltage can change. Hence current leads voltage.
A cylindrical 4340 steel bar is subjected to reversed rotating–bending stress cycling, which yielded the test results presented in animated figure 8. 21. If the maximum applied load is 5,000 n, compute the minimum allowable bar diameter to ensure that fatigue failure will not occur. Assume a factor of safety of 2. 25 and that the distance between loadbearing points is 55. 0 mm
Answers
Based on the maximum applied load, the factor of safety, and the distance between the loadbearing points, the minimum allowable bar diameter is 18.6 mm.
What is the minimum allowable bar diameter?The diameter is included in the following formula:
Maximum stress / Factor of safety = (16 x Maximum applied load x distance between loadbearing points x 10⁻¹⁰) / (π x diameter³)
Solving gives:
(490 x 10⁶) / 2.25 = (16 x 5,000 x 55.0 x 10⁻¹⁰) / (π x diameter³)
217,777,777.78 = 0.00044 / (π x diameter³)
diameter = 18.6 mm
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A site is underlain by a soil that has a unit weight of 118 lb/ft3. From laboratory shear strength tests that closely simulated the field conditions, the total stress parameters were measured to be C total = 250 lb/ft2 and φ total = 29°. Estimate the shear strength on a horizontal plane at a depth of 12 ft below the ground surface at this site in lbs/ sq ft
Answers
Answer: the shear strength at a depth of 12 ft is 1034.9015 lb/ft²
Explanation:
Given that;
Weight of soil r = 118 lb/ft³
stress parameter C = 250 lb/ft²
φ total = 29°
depth Z = 12 ft
The shear strength on a horizontal plane at a depth of 12ft
ζ = C + δtanφ
where δ = normal stress
normal stress δ = r × z = 118 × 12 = 1416
so
ζ = C + δtanφ
ζ = 250 + 1416(tan29°)
ζ = 250 + 1416(tan29°)
ζ = 250 + 784.9016
ζ = 1034.9015 lb/ft²
Therefore the shear strength at a depth of 12 ft is 1034.9015 lb/ft²
Near the downstream end of a river spillway, a hydraulic jump often forms, as illustrated in Fig. P5.130 and Video V10.11. The velocity of the channel flow is reduced abruptly across the jump. Using the conservation of mass and linear momentum principles, derive the following expression for h2, The loss of available energy across the jump can also be determined if energy conservation is considered. Derive the loss expression jump loss g1h2 h12 3 4h1h2
Answers
Mass Conservation:
A1V1 = A2V2
Linear Momentum Conservation:
A1V1^2 + g1H1 = A2V2^2 + g2H2
Combining the above equations gives:
A1V1^2 + g1H1 = A2(A1V1/A2)^2 + g2H2
H2 = H1 + (V1^2/2g2) - (A1V1^2/2g2A2)
Available Energy Conservation:
g1H1 + (1/2)A1V1^2 = g2H2 + (1/2)A2V2^2
Combining the above equations gives:
g1H1 + (1/2)A1V1^2 = g2(H1 + (V1^2/2g2) - (A1V1^2/2g2A2)) + (1/2)A2(A1V1/A2)^2
Jump loss = (g1H1 - g2H2) + (1/2)V1^2(A2/A1 - 1)
How does momentum work?
Momentum, that is created by multiplying a particle's mass by the speed. The momentum has both a magnitude and the direction, it is the vector quantity. The temporal rate of change in momentum equals directly proportional to the force applied on the particle, according to Isaac Newton's second law. Refer to Newton's laws.
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gradual process by which machines replaced hand tools
Answers
The Industrial Revolution refers to the gradual process by which machines replaced hand tools in the early 1800s.
What is Industrial Revolution?
The Industrial Revolution was a period of significant change from the mid-18th century to the mid-19th century, characterized by the transition from hand-based to machine-based manufacturing, increased agricultural productivity, and new developments in transportation.
The growth of iron and textile industries marked the beginning of this era, which spread throughout Britain and eventually to other countries in Europe and North America. It brought about massive changes in the way goods were produced, leading to higher levels of efficiency and a shift from a agrarian to an industrialized economy, transforming the lives of millions of people and setting the stage for the modern era.
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a 45.9 mm-thick plate made of low carbon steel is to be reduced to 30.3 mm in one pass in a rolling operation. as the thickness is reduced, the plate widens by 3.6%. the yield strength of the steel plate is 174 mpa and the tensile strength is 298 mpa. the entrance speed of the plate is 13 m/min. the roll radius is 303 mm and the rotational speed is 43 rev/min. determine the forward slip (up to 4 decimal points).
Answers
In a rolling operation, the forward slip is defined as the difference between the peripheral speed of the rolls and the speed of the plate at the point of contact. To determine the forward slip, we need to calculate the peripheral speed of the rolls and the speed of the plate at the point of contact.
The peripheral speed of the rolls can be calculated using the formula: peripheral speed = 2 x pi x roll radius x rotational speed. Substituting the given values, we get:
peripheral speed = 2 x 3.14 x 303 mm x 43 rev/min = 92.08 m/min
To calculate the speed of the plate at the point of contact, we need to use the formula: speed of the plate = entrance speed / (1+ percent increase in width/100). Substituting the given values, we get:
speed of the plate = 13 m/min / (1 + 3.6/100) = 12.51 m/min
Now, we can calculate the forward slip using the formula: forward slip = (peripheral speed - speed of the plate) / peripheral speed x 100. Substituting the calculated values, we get:
forward slip = (92.08 m/min - 12.51 m/min) / 92.08 m/min x 100 = 86.40%
Therefore, the forward slip is 86.40%.
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What strategy may help a visual learner process data?
Answers
A strategy that may help a visual learner process data is a pie chart or histogram.
elative to blow molding, rotational molding tends to be advantageous in which of the following situations: (a) higher production quantities, (b) larger parts, (e) lower production quantities, (d) more complex external part geometries, (e) simpler external part geometries, and (t) smaller parts? a) (a), (b) and (d) b) (b), (c), and (d) c) (d), (e) and (6) d) (b), (c), and (f)
Answers
Rotational molding tends to be advantageous in situations larger parts, lower production quantities, and more complex external part geometries. Option B, B, C, and D is correct.
This is because elative to blow molding, rotational molding allows for more design flexibility and can produce larger, more complex parts with uniform wall thickness and no weld lines. It also allows for customization and can produce parts with varying shapes, textures, and colors.
While it is not as efficient for higher production quantities, it can still be used for lower production quantities and smaller parts.
Therefore, the answer is B. (b), (c), and (d).
elative to blow molding, rotational molding tends to be advantageous in which of the following situations: (a) higher production quantities, (b) larger parts, (c) lower production quantities, (d) more complex external part geometries, (e) simpler external part geometries, and (f) smaller parts?
a) (a), (b) and (d)
b) (b), (c), and (d)
c) (d), (e) and (6)
d) (b), (c), and (f)
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built sod houses used dry farming techniques used barbed wire fences burned cow and buffalo chips for fuel windmills pumped water steel plow used for tough soil what would be the best title for the box above? responses
Answers
farmers adapted to the environment on the huge plains is the right response (option C). built sod homes, employed dry agricultural methods, erected barbed wire fences, and utilized cow.
Windmills sold water, and steel was used to make difficult oil. How Farmers Adapted to Conditions on the Great Plains might be the ideal heading for this paragraph. We are discussing how farmers changed their way of life as the West was opened up. West of the Mississippi River is where you'll find the Great Plains. It is a vast, flat, dusty, environment area that significantly impacted the farmers who lived there, forcing them to innovate and build a variety of items in order to survive or live in better conditions, notably with reference to farming methods.
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The complete question is-
Built sod houses , used dry farming techniques , used barbed wire fences , burned cow and buffalo chips for fuel , windmills pimped water , steel pow used for tough oil . What would be the best title for these ? A. Methods used by forty niners to stake claims. b. Sources of conflict between ranchers and farmers. C. How farmers adapted to conditions on the great plains. D. How american indians and western farmers cooperated
to do you blur text in google docs
Answers
Answer:
I dont think you can blur text in google docs
In which situation is a are food service workers not required to wash their hands?
Answers
Answer:
when wearing gloves?
Explanation:
?
or when off duty
Answer:
When off duty
Explanation:
Question 10 of 25: Select the best answer for the question. 10. In a series RC circuit, if the resistance is 8,000 ohms and X is 6,000 ohms, what is the impedance of the circuit O A. 8,600 ohms O B. 10,000 ohms O C. 14,000 ohms O D. 9,200 ohms Mark for review (Will be highlighted on the review page) << Previous Question Next Question >> M LL 5 - 1080 acer
Answers
Answer:
B. 10,000 ohms
Explanation:
|8000 +j6000| = √(8000² +6000²) = 1000√(64 +36) = 1000√100 = 10,000
The impedance is 10,000 ohms.
36. What is mass? (4.4)
A. The area of an object.
B. A measure of how much work an object can do.
c. The amount of matter an object or body contains.
D. The force that tends to rotate or turn things.
Answers
Answer:
Mass, in physics, quantitative measure of inertia, a fundamental property of all matter.
Explanation:
Mass is the matter that makes up objects
A pointer is spun on a fair wheel of chance having its periphery labeled Trom 0 to 100. (a) Whhat is the sample space for this experiment? (b)What is the probability that the pointer will stop between 20 and 35? (c) What is the probability that the wheel will stop on 58?
Answers
Answer:
A pointer is spun on a fair wheel of chance having its periphery labeled Trom 0 to 100. (a) Whhat is the sample space for this experiment? (b)What is the probability that the pointer will stop between 20 and 35? (c) What is the probability that the wheel will stop on 58?
Explanation:
thats all you said
Answer:
hii my name is RAGHAV what is your name
Explanation:
this question is which chapter
What is the following passage saying about the relationship between sustainability and responsibility?
How green is Green? When we brand certain products or services as “green,” “renewable,” or “sustainable,” that label can’t just consider those products or activities along a single axis. A biofuel that doesn’t depend on petroleum to produce and refine but that requires massive overproduction of certain crops which wreck the water table is not “green.” A process that relies on production that is local but also wasteful is not “green.”
Sustainability is not just about one thing but about many things coming together.
We should not market products and services as green, renewable, or sustainable.
We should only consider products or services to be green if their broad impact can be considered so.
It is likely that no product or service is really green if we carefully consider its ramifications.
Answers
What the given passage is saying about the relationship between sustainability and responsibility is that;
C: We should only consider products or services to be green if their broad impact can be considered so.
SustainabilityFrom the passage, we see a write up questioning if the things we term to be green are truly green.
Now, from the passage, we see that a biofuel that is considered to be green is not really green if we consider that if it requires massive overproduction, it could wreck the water table.
Also, he says that if the production is local but also wasteful then it is not green.
Thus, we can see clearly that before we term a product or service as green, we should also consider their broad impact on the environment.
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A particular DSL modem operates at 768 kbits/sec. How many bytes can it receive in 1 minute? USB 3.0 can send data at 5 Gbits/sec. How many bytes can it send in 1 minute?
Answers
Answer:
a. 1.6 Kbytes/min
b. 10.417 Mbytes/min
Explanation:
a. The DSL modem operates at 768 Kbits/sec.
But,
8 bits = 1 byte and 1 Kbit = 1 000 bits, so that:
= \(\frac{768 000}{8}\)
= 96 000 bytes
Therefore, the modem operates at 96 Kbytes/sec.
The byte to be received in 1 minute can be calculated thus;
Since 60 seconds = 1 minute, then:
= \(\frac{96000}{60}\)
= 1600
= 1.6 Kbytes/min
The modem receives 1.6 Kbytes/min
b. The USB sends 5 Gbits/sec.
But, 8 bits = 1 byte and 1 Gbit = 1000000000 bits so that:
= \(\frac{5000000000}{8}\)
= 625000000
= 0.625 Gbytes
The USB sends 0.625 Gbyte/sec.
Since 60 seconds = 1 minute, then:
= \(\frac{625000000}{60}\)
= 10416666.67
= 10.417 Mbytes/min
Five kg of water is contained in a piston–cylinder assembly, initially at 5 bar and 240°C. The water is slowly heated at constant pressure to a final state. The heat transfer for the process is 2660 kJ and kinetic and potential energy effects are negligible. Determine the final volume, in m3, and the work for the process, in kJ.
Answers
Answer:
Explanation: that’s the answer! 46kg
What is wrong with the following code?
6
print (what is your name?)
Answers
Answer:
pakipic na lang po question nyo para masagot po
Explanation:
please po di ko masyado gets po e
it is simple the title name after all it is just asking your name
1) Speed data collected on an urban road way yielded a standard deviation in speed of ± 4.5mi/hr. a) If an Engineer wishes to establish to estimate the average speed on the roadway at 95% confidence level so that the estimate is ± 1.3mi/hr. of limit of acceptable error, how many spot speeds should be collected?
Answers
The engineer should gather at least 52 spot speeds to estimate the average speed on the roadway with a 95% confidence level and a margin of error of 1.3 mi/hr.
How to calculate the valueWe can use the formula: n = (Z * σ / E)²
In this scenario, we want to estimate the average speed on the road with 95% confidence and a margin of error of 1.3 miles per hour. As a result, we can specify:
Z = 1.96 (for 95% confidence level)
σ = 4.5 mi/hr
E = 1.3 mi/hr
n = (1.96 * 4.5 / 1.3)² = 51.5
n = 52.
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Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 20oC and exits at 3.0 bar. The refrigerant undergoes a throttling process. Determine the temperature, in oC, and the quality of the refrigerant at the exit of the expansion valve. Step 1 Determine the temperature of the refrigerant at the exit, in oC.
Answers
Answer:
\(T_{2}\) = -9.24 °C
x = 0.1057
Explanation:
The tables used in this answer and explanation come from Fundamentals of Engineering Thermodynamics 9th Edition.
Using Table A-14: Properties of Saturated Ammonia (Liquid-Vapor): Pressure Table and the given \(P_{2}\), \(T_{2}\) can be determined by finding the temperature that corresponds with \(P_{2}\) on the table. In this case, \(T_{2}\) = -9.24 °C.
The quality of the refrigerant can be determined by using data from the same table and \(h_{2} =274.26\) kJ/kg.
Necessary data (P=3bar):
\(h_{f}=137.42\) kJ/kg
\(h_{g}=1431.47\) kJ/kg
The formula to calculate quality is \(h_{2} =h_{f}+x(h_{g}-h_{f})\).
Rearranging for x:
\(x=\frac{h_{2}-h_{f} }{h_{g}-h_{f} }= \frac{274.26-137.42}{1431.47-137.42}=0.1057\)
mechanical engineering Please describe how you have prepared for your intended major, including your readiness to succeed in your upper-division courses once you enroll at the university.
Answers
Aspiring for success in a chosen major such as Mechanical Engineering would require a strong will or zeal to pull through and succeed, which is an ideal psychological prerequisite to success.
Additionally, Mechanical Engineering is a mix of Mathematics and Physics, a good background knowledge of these subjects would go a long way to ease your journey as it will aid the ability to grasp new concept and applications.Similarly, simulation and software packages related to Mechanical Engineering should be held in high esteem. This is because it will aid in understanding the practical aspect of the course and certainly yield good result.Hence, the combination of practical and theoretical knowledge in basic subject coupled with determination should be enough to succeed.
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__ strength is a measure of the maximum stress that a material can resist under tensile stress
Answers
Tensile strength is a measure of the maximum stress that a material can resist under tensile stress.
The strength of a material is a measure of its ability to withstand external forces without breaking or deforming. It is usually expressed as the maximum stress that a material can withstand before it fails. In the case of tensile strength, this refers to the maximum stress that a material can resist under tension, which is when a force is applied to pull it apart.
Tensile strength is an important property to consider when selecting materials for engineering applications. The tensile strength of a material can be determined through a variety of tests, including the tensile test, where a sample of the material is subjected to tension until it breaks.
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Using the 25 (7.5 m) tap rule, what is the minimum size copper THWN conductor required for a tap from a 400A, 480V, three- phase feeder? a. No. 1 b. No. 2 c. 1/0 d. 270 wine load
Answers
Option c. Using the 25-foot (7.5-meter) tap rule, the minimum size copper THWN conductor required for a tap from a 400A, 480V, three-phase feeder is 1/0
1. According to the National Electrical Code (NEC) Article 240.21(B)(1), the tap rule allows conductors to be sized at no less than one-third the rating of the overcurrent protection device (OCPD) if the tap does not exceed 25 feet (7.5 meters).
2. Calculate the minimum conductor ampacity by dividing the feeder's rating by 3:
Minimum Conductor Ampacity = 400A / 3 = 133.33A
3. Check the NEC Table 310.15(B)(16) to find the appropriate conductor size that can carry at least 133.33A of current. In this case, you will find that a 1/0 copper conductor with THWN insulation can handle 150A, which is sufficient for the tap.
So, the minimum size copper THWN conductor required for a tap from a 400A, 480V, three-phase feeder using the 25-foot (7.5-meter) tap rule is 1/0.
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why a hard disk called a random access stroage device
Answers
RAM is called “random access” because any storage location on the computer can be accessed directly (as opposed to randomly).
Aiman is 80 inches tall. How tall is Aiman in centimeters? Show your work.
Answers
This is because 1 inch = 2.54 centimeters which means multiply 80 inches X 2.54 = 203.2 centimeters.
An __________ vector drive uses a shaft encoder on the motor shaft to provide shaft roatation data to the vfd.
Answers
Answer:
Closed-loop.
Explanation:
A CLOSED-LOOP vector drive uses a shaft encoder on the motor shaft to provide shaft rotation data to the vfd.
I hope it helps! Have a great day!
Answer:
A CLOSED- LOOP vector drive uses a shaft encoder on the motor shaft to provide shaft roatation data to the vfd.
Explanation:
I hope it helps! Have a great day!
In temperature sensitive switches all of the following factors affect the calibration of the temperature set point of the bimetal strip, except:
Answers
In temperature sensitive switches, all of the following factors affect the calibration of the temperature set point of the bimetal strip except fatigue. A temperature-sensitive switch is a device that monitors temperature levels and can be used in a variety of applications.
It's essentially a switch that's turned on or off by changes in temperature. It functions by utilizing a temperature sensing component like a bimetallic strip to trigger a change in state of an electrical circuit or system.The following are the factors that affect the calibration of the temperature set point of the bimetal strip except fatigue:
1. The thickness of the bimetallic strip.
2. The tension of the bimetallic strip.
3. Composition of the bimetallic strip
4. The shape of the bimetallic strip.
5. Length of the bimetallic strip.
6. Ambient Temperature.
7. Humidity.
8. Corrosion.
9. Fatigue is not a factor that affects the calibration of the temperature set point of the bimetal strip. The factors listed above are essential for the calibration of the temperature set point of the bimetal strip, except for fatigue, which is a non-factor.
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It is desired to enrich the partial pressure of hydrogen in a hydrogen–nitrogen gas mixture for which the partial pressures of both gases are 0.1013 MPa (1 atm). It has been proposed to accomplish this by passing both gases through a thin sheet of some metal at an elevated temperature; in as much as hydrogen diffuses through the plate at a higher rate than does nitrogen, the partial pressure of hydrogen will be higher on the exit side of the sheet. The design calls for partial pressures of 0.051 MPa (0.5 atm) and 0.01013 MPa (0.1 atm), respectively, for hydrogen and nitrogen. The concentrations of hydrogen and nitrogen (CHC
H and CNC N , in mol/m3mol/m
3 ) in this metal are functions of gas partial pressures (pH2 and pN2p
H 2 and p N , in MPa) and absolute temperature and are given by the following expressions:
CH=2.5×103√pH2exp(−27,800J/mol/RT)
CN=2.75×103√pN2exp(−37,600J/mol/RT )
Furthermore, the diffusion coefficients for the diffusion of these gases in this metal are functions of the absolute temperature, as follows:
DH(m2/s)=1.4×10−7exp(−13,400J/mol/RT)
DN(m2/s)=3.0×10−7exp(−76,150J/mol/RT)
Is it possible to purify hydrogen gas in this manner? If so, specify a temperature at which the process may be carried out, and also the thickness of metal sheet that would be required. If this procedure is not possible, then state the reason(s) why.
Answers
Answer:
T = 3460 K
Explanation:
See attachment for calculation.
Since the temperature we have is above the melting point of the metal, then we can conclude that it is too high for the diffusion process to be possible.
What differential manufacturer was used
in the Banks Power System Testing
Project?
Answers
Note that the differential manufacturer that was used in the Banks Power System Testing Project is AMSOIL Incorporated.
Who is AMSOIL?AMSOIL Inc. is a Wisconsin-based American firm that primarily formulates and produces synthetic lubricants, gasoline additives, and filters. Throughout the mid-to-late 1960s, company founder Albert J. Amatuzio created numerous synthetic motor oil formulas.
It is to be noted that a differential manufacturer is a company that produces and sells differentials, which are mechanical devices that allow the wheels of a vehicle to rotate at different speeds. Examples of differential manufacturers include Eaton, Dana, and GKN Automotive.
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899.99 Is to much right
Answers
Answer:
no not for all that in the set
Explanation:
pic also looks fake so i wouldnt trust it.