The process by which water moves from an area with fewer solutes to an area with more solutes is called osmosis. This is a type of passive transport, meaning it does not require energy expenditure by the cell.
Osmosis occurs when there is a concentration gradient of solutes across a selectively permeable membrane, which allows water molecules to pass through but not the solutes. The movement of water occurs in order to balance the concentration of solutes on both sides of the membrane, a process known as achieving osmotic equilibrium.
This movement of water through the membrane can have important implications for the function of cells, particularly in maintaining their shape and volume. Osmosis is also important in many biological processes, such as the absorption of water and nutrients from the digestive tract, as well as the regulation of fluid balance in the body.
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If the farmer has 162 feet of fencing, what is the largest area the farmer can enclose?.
If the farmer has 162 feet of fencing, the largest area the farmer can enclose is 12,096 square feet.
What is fencing?
Fencing is a grouping of three combat sports. Modern fencing has three disciplines: foil, épée, and sabre. Points are scored when the weapon makes contact with an opponent. A fourth discipline, singlestick, debuted in the 1904 Olympics but was dropped later and is no longer practised in modern fencing. Fencing was one of the earliest Olympic sports to be played. The modern sport evolved towards the end of the nineteenth century, based on ancient swordsmanship skills, with the Italian school having changed the historical European martial art of classical fencing, and the French school afterwards perfecting the Italian method.
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(a) Calculate the heat flux through a sheet of steel that is 10 mm thick when the temperatures oneither side of the sheet are held constant at 300oC and 100oC, respectively.(b) Determine the heat loss per hour if the cross-sectional area of the sheet is 0.25 m2.(c) What will be the heat loss per hour if a sheet of soda-lime glass is used instead
Answer:
do the wam wam
Explanation:
The heat flux is =1038kW/m² , the heat lost per hour is =259.5 kW, the heat lost per hour using a sheet of soda- lime glass.
Calculation of heat fluxThe thickness of steel( t) = 10mm = 10× 10^-³m
The temperature difference on both sides = 300-100
∆T = 200°C
But the formula for heat flux = q = k∆T/t
Where K = thermal conductivity for steel = 51.9W/mK.
Substitute the variables into the formula for heat flux;
q = 51.9 × 200/10 × 10-³
q = 10380 × 10³/10
q = 10380000/10
q = 1038000 W/m² = 1038kW/m²
To calculate the heat lost per hour if the cross sectional area is = 0.25 m2 use the formula q × A
= 1038kW/m² × 0.25 m2
= 259.5 kW.
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An inventor claims to have developed a device requiring no work or heat transfer input yet able to produce hot and cold air streams at steady state.
a. True
b. False
Answer:
a. True
Explanation:
Apply the principle of conservation of mass.
and also the expression for the steady flow energy equation.
kinetic and potential energy effects can be neglected.
The given statement by the inventor who is claiming the development of a device that requires no work or heat transfer input yet is able to produce hot and cold air streams at a steady state is definitely false.
What is heat transfer?Heat transfer may be characterized as a type of process which involves the migration of heat from one object or component to another by numerous mechanisms like conduction, convection, and/or radiation.
The process of heat transfer may occur where there is a temperature difference between two objects exist. It significantly utilizes the mechanism of exchanging thermal energy between two or more physical systems.
According to the concept of physics, no object or thing has the ability to perform its function without the utilization of any source of heat or energy. Then, how it is possible for that device to produce hot and cold air streams at a steady state.
Therefore, the given statement by the inventor is absolutely false.
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An o ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with
An o ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with a blue stripe or dot.
This is a classification of back pain based on duration. A) AcuteB) RecurrentC) ChronicD) All of the above
Answer:
D) All of the above.
Compute the convolution y(n)=x (n) *h(n) of the following pairs of signals. x(n) = { 0,5 -2 4 1.5 1} with pointer at n= 2 h(n) = u(n + 1) - u(n - 4) with pointer n= 0.
The convolution y(n) of x(n) and h(n) is {0, 5, -2, 4.5, 0.5, 0, 0, 0} with pointer at n = 2.
To compute the convolution, we need to flip the h(n) signal and slide it over x(n) while multiplying the corresponding values. The given x(n) has 6 elements, and h(n) has a length of 6 as well.
For n = 0: y(0) = 0 * (0 + 1) = 0
For n = 1: y(1) = 5 * (0 + 1) + 0 * (1 + 1) = 5
For n = 2: y(2) = -2 * (0 + 1) + 5 * (1 + 1) + 0 * (0 + 1) = -2 + 10 = 8
For n = 3: y(3) = 4 * (0 + 1) - 2 * (1 + 1) + 5 * (0 + 1) = 4 - 4 + 5 = 5
For n = 4: y(4) = 1.5 * (0 + 1) + 4 * (1 + 1) - 2 * (0 + 1) = 1.5 + 8 - 2 = 7.5
For n = 5: y(5) = 1 * (0 + 1) + 1.5 * (1 + 1) + 4 * (0 + 1) = 1 + 3 + 4 = 8
For n = 6 to 8: y(n) = 0, as h(n) has no overlap with x(n)
Hence, the convolution y(n) is {0, 5, -2, 4.5, 0.5, 0, 0, 0} with the pointer at n = 2.
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Use the body of a persuasive request to gain your reader's attention and interest. Group of answer choices True False
The given statement "Use the body of a persuasive request to gain your reader's attention and interest" is true because the body of a persuasive request plays a crucial role in capturing the reader's attention and interest.
Does the body of a persuasive request grab attention?When crafting a persuasive request, it is crucial to make a compelling case that captivates your reader right from the start. The body of the request should be structured in a way that engages the reader, presenting a clear and persuasive argument that addresses their needs or concerns. By using persuasive language, appealing to emotions, providing evidence, and demonstrating the benefits or value, you can effectively gain your reader's attention and interest.
Additionally, utilizing storytelling techniques, personal anecdotes, or relevant examples can make your request more relatable and memorable. Ultimately, a well-crafted body of a persuasive request can significantly increase the likelihood of your reader responding positively to your appeal.
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The following measurements are taken on particular junction diodes for which V is the terminal voltage and I is the diode current. For each diode, estimate values of Is and the terminal voltage at 10% of the measured current.
(a) V = 0.700 V at I = 1.00 A.
(b) V = 0.650 V at I = 1.00 mA.
(c) V = 0.650 V at I = 10 mu A.
(d) V = 0.700V at I = 100 mA.
The values of Is and V are as: (a) \(Is = 2.34 \times 10^{-11} A\) and V = 0.581 V. (b) \(Is = 4.56 \times 10^{-15} A\) and V = 0.516 V. (c) \(Is = 1.18 \times 10^{-16} A\\\) and V = 0.459 V. (d) \(Is = 2.34 \times 10^{-11} A\) and V = 0.581 V.
The relation between the current and voltage of a diode is given by the Shockley diode equation. It is an exponential function and can be given by the following equation:
\(I = Is \times (e^{V/Vt} - 1)\)
Where
I = currentV = voltageVt = thermal voltageIs = reverse saturation current.(a)
Given that:
V = 0.700 V
And I = 1.00 A.
Substituting these values in the equation above to get,
\(1.00 A = Is \times (e^{0.700 V / 0.025 V} - 1)\\Is = 2.34 \times 10^{-11} A\)
The terminal voltage at 10% of the measured current can be found by substituting I = 0.1 A in the above equation and solving for V as:
V = 0.581 V.
(b)
Given that:
V = 0.650 V
And, I = 1.00 mA.
Substituting these values in the equation above to get,
\(1.00 mA = Is \times (e^{0.650 V / 0.025 V} - 1)\\ Is = 4.56 \times 10^{-15} A\)
The terminal voltage at 10% of the measured current can be found by substituting I = 0.1 mA in the above equation and solving for V as:
V = 0.516 V.
(c)
Given that:
V = 0.650 V
And, I = 10 μA.
Substituting these values in the equation above to get,
\(10 \mu A = Is \times (e^{0.650 V / 0.025 V} - 1)\\Is = 1.18 \times 10^{-16} A\)
The terminal voltage at 10% of the measured current can be found by substituting I = 1 μA in the above equation and solving for V as:
V = 0.459 V.
(d)
Given that:
V = 0.700 V
And, I = 100 mA.
Substituting these values in the equation above to get,
\(100 \ mA = Is \times (e^{0.700 V / 0.025 V} - 1)\\Is = 2.34 \times 10^{-11} A\)
The terminal voltage at 10% of the measured current can be found by substituting I = 10 mA in the above equation and solving for V as:
V = 0.581 V.
So, the values of Is and V are as: (a) \(Is = 2.34 \times 10^{-11} A\) and V = 0.581 V. (b) \(Is = 4.56 \times 10^{-15} A\) and V = 0.516 V. (c) \(Is = 1.18 \times 10^{-16} A\\\) and V = 0.459 V. (d) \(Is = 2.34 \times 10^{-11} A\) and V = 0.581 V.
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Given an int variable strawsoncamel, write a statement that uses the increment operator to increase the value of that variable by 1.
Given an int variable strawsoncamel, a statement that uses the increment operator to increase the value of that variable by 1 is; strawsOnCamel++;
How to Write Increment in JavaScript?
When talking about Increment of an int variable in Java, we know that;
There are two ways to use the increment operator; prefix and postfix increment. The prefix increment looks like ++variablename; while the postfix increment looks like variablename++; . Both of these operations add one to the value in the variable. The difference between the two is the order of how it works.
Now, write a statement that uses the increment operator to increase the value of that variable by 1. Thus, we will make use of the postfix increment to get;
strawsOnCamel++;
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This wired networking standard specifies the order in which data is sent through the network.
Select one:
a. Ethernet
b. WiMAX
c. LTE
d. TCP/IP
The wired networking standard that specifies the order in which data is sent through the network is Ethernet.
Ethernet is a widely used wired networking standard that defines the protocols and specifications for data transmission over a local area network (LAN). It specifies the order in which data is sent through the network by utilizing the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) algorithm.
The CSMA/CD algorithm ensures that multiple devices connected to an Ethernet network can share the same communication medium without interfering with each other. Before transmitting data, a device using Ethernet listens to the network to detect if it is clear to send data. If the network is busy, it waits for an opportune moment. Once the network is clear, the device sends the data, constantly monitoring for collisions. If a collision occurs (when two or more devices transmit data simultaneously), they stop transmitting, wait for a random period of time, and then retry.
By following this protocol, Ethernet ensures orderly and efficient data transmission within the network, minimizing collisions and maximizing data throughput. It has become the de facto standard for wired local area networks due to its reliability, scalability, and widespread adoption.
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d)What is the binary equivalent of the following decimal number
(floating point)? 14.0
e)What is the hexadecimal equivalent of the following bit
sequence? 0010 1110 1000 0001 1010 1111 1000
d) The binary equivalent of the decimal number 14.0 is 1110.0. e) The hexadecimal equivalent of the bit sequence 0010 1110 1000 0001 1010 1111 1000 is 2E81AF8.
d) To convert the decimal number 14.0 to binary, we can convert the integer part and the fractional part separately. The integer part, 14, is represented as 1110 in binary. The fractional part, 0, remains as 0 in binary. Combining the two parts, we get 1110.0 as the binary equivalent of 14.0.
e) The given bit sequence 0010 1110 1000 0001 1010 1111 1000 represents a binary number. To convert it to hexadecimal, we can group the binary digits into sets of four from right to left. The resulting groups are 0010, 1110, 1000, 0001, 1010, 1111, and 1000. Converting each group to hexadecimal, we get 2, E, 8, 1, A, F, and 8. Combining these hexadecimal digits, we obtain the result 2E81AF8.
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Describe the difference between new products being needed based on demand pull versus a technology push. For full credit, provide examples of each in your answer.
Demand pull and technology push are two different ways in which new products can be developed. In demand pull, new products are needed based on consumer demand or market needs.
This means that the product is developed in response to customer needs, preferences, and trends. Examples of demand pull include the development of electric cars in response to the growing demand for eco-friendly vehicles, or the creation of smartphones with better camera capabilities due to consumer demand for high-quality photos.
On the other hand, technology push is when new products are developed based on advancements in technology. This means that the product is developed based on the potential of the technology, rather than a specific demand or need. Examples of technology push include the development of virtual reality headsets or self-driving cars, which were created based on advancements in computer technology.
In summary, demand pull is driven by customer needs and market demands, while technology push is driven by technological advancements. Both approaches can lead to the creation of innovative new products that meet the needs of consumers and advance our technology capabilities.
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What hardware and peripherals are you using right now to take this course? What software and operating system (OS)? Describe the basic details of how the things you write for this course are sent through the internet, including the role of packets, an ISP, and a server.
The hardware that I am using to take this course is a Laptop computer running on windows operating system.
What are the basic details of how the things written for this course are sent through the internet, including the role of packets, an ISP, and a server.When you send a query, like your previous message, your laptop's operating system breaks it into smaller units called packets. These packets contain parts of your message, destination address, and other metadata.
They're sent over the internet through your Internet Service Provider (ISP), which directs them through routers and switches. These network devices ensure packets take the most efficient path.
They reach the server where I'm hosted. The server processes your query, generates a response, divides it into packets, sends them back through the same process, and your laptop reassembles them to display my answer.
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Write an Essay describing in your own words, the two-way Communication Cycle naming all the stages and explaining what goes on at each stage. Illustrate any two barriers that may occur at each of the stages. A correctly labelled diagram is essential for your essay.
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means black in spanish!
One of the motors in the factory sustained mechanical vibrations which are modelled by the equation =60Sin ( 0.45πt−θ) mm
a) State the maximum value of the vibrations and the angular frequency of the sinusoidal vibration giving the appropriate units
b) Calculate the value of the vibration, v after a time of t1 second.
c) Calculate the time when the vibration reaches the first maximum and minimum value
d) Sketch one cycle of the vibration function and clearly show the points calculated earlier.
a) The maximum value of the vibrations is 60 mm, and the angular frequency is 0.45π radians/second.
b) Calculate the value of the vibration, v, after a time of t1 second.
c) Calculate the time when the vibration reaches the first maximum and minimum value.
d) Sketch one cycle of the vibration function and indicate the calculated points.
How can we determine the maximum value, angular frequency, value after a given time, and the time when the vibration reaches its first maximum and minimum?a) The maximum value of the vibrations is 60 mm, representing the amplitude of the sinusoidal function. The angular frequency, 0.45π radians/second, determines the rate at which the vibrations oscillate.
b) To calculate the value of the vibration, v, after a time of t1 seconds, substitute the value of t1 into the given equation.
c) The vibration function completes one full cycle when the argument inside the sine function, 0.45πt - θ, equals 2π. By setting this equation equal to 2π, we can solve for the time at which the vibration reaches its first maximum and minimum value.
d) Sketching one cycle of the vibration function involves plotting the displacement of the motor over time, starting from a point where the vibration is at its maximum. Indicate the calculated points, such as the maximum and minimum values and the time when they occur, on the graph to visually represent the behavior of the vibration.
By understanding the maximum value, angular frequency, value after a given time, and the time of first maximum and minimum, we gain insights into the characteristics and behavior of the mechanical vibrations in the factory.
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Which statement best explains why pneumatic cylinders need to be smaller than hydraulic cylinders?
The pneumatic system only needs enough room to have an onloff switch installed in order to operate correctly.
The energy in pneumatic power systems is easily transmitted to gases, which absorb the energy of the system and lower its efficiency
The control of the hydraulic system is much more precise and therefore requires a larger cylinder.
The fluid in a hydraulic system has more mass and therefore needs more storage space.
Answer:
The energy in pneumatic power systems is easily transmitted to gases, which absorb the energy of the system and lower its efficiency.
Explanation:
I did it on edge and got it right.
Answer:
The energy in pneumatic power systems is easily transmitted to gases, which absorb the energy of the system and lower its efficiency
Thanks for points!!! :D
Help!
Write a C program to process weekly employee time cards for all employees of an organization. Each employee will have three data items: an identification number. the hourly wage rate, and the number of hours worked during a given Week o Each employee is to be paid time and a half for all hours worked over 36 A tax amount of 1% of gross salary will be deducted. program output should show the employee's number and net pay.
The program requires the use of loops.
Loops are simply used to perform repetitive operations.
The program in C, where comments are used to explain each line is as follows:
#include <stdio.h>
int main(){
//This declares all the variables
int n, idno, hours; float rate,pay;
//This gets input for the number of employees
printf("Employees: "); scanf("%d", &n);
//This is repeated n times
for(int i = 0; i<n; i++){
//This gets input for the identification number
printf("Identification number: "); scanf("%d", &idno);
//This gets input for the hours worked
printf("Hours worked: "); scanf("%d", &hours);
//This gets input for the hourly rate
printf("Rate: "); scanf("%f", &rate);
//This calculates the pay, after tax
pay = rate * hours * 0.99;
//This calculates the pay, after tax for hours greater than 36
if(hours > 36){
pay = 0.99 * (rate * 36 + 0.5 * rate * (hours - 36));
}
//This prints the required output
printf("Identification number: %d Pay: %f\n",idno,pay);
}
return 0;
}
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Standards relating to technical drawing
Answer:
Borders, Dimensions Identified, Scale, Text Box with Date/Author/Title/Version Number
Explanation:
Technical drawings have many standards in order to maintain integrity and ensure that they can be used by engineers to produce what is mapped out in the drawing.
Every technical drawing needs to have borders and a text box with all information related to the drawing. This includes the date it was created, date it was updated, version number, title, and author.
Furthermore, each drawing should have necessary dimensions with a scale. At the same time, technical drawings should not be over-dimensioned or repetitive.
All of these things must be on a technical drawing to allow professional engineers to sign off on drawings.
The no-slip condition is:________
a. Valid only for liquids
b. It only applies to compressible gases
c. An experimental observation that the velocity of a fluid in contact with a solid surface is equal to the velocity of the surface.
d. Indicates that two solids in contact will not slip if the joining force is large.
e. Useful only for very low density geses.
Answer:
The correct answer is option (c) An experimental observation that the velocity of a fluid in contact with a solid surface is equal to the velocity of the surface.
Explanation
Solution:
When a fluid is in proximity to the boundary the solid and the velocities are the same or uniform for the fluid and the surface, no slip condition does not exist.
However, because the no-slip meets the expectations for gas and liquids, this condition no way connected in this case of two solid in proximity.
hence, the other options are wrong here.
push buttons combine the operation of a selector switch and push button in the same unit is called ?
The device you are referring to is typically called a "push button selector switch" or a "selector switch with push button".
This type of switch combines the functions of both a selector switch and a push button into a single unit. It allows the user to select a particular position or function by rotating the switch to the desired position, and then activate that function by pressing the button associated with that position.
Push button selector switches are commonly used in control panels and other industrial applications where it is necessary to select and activate different functions or operations with a single device.
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Give the principle, construction and working of Bourdan tube pressure gauge.
Answer:
Working Principle Of Bourdon GaugeIf a tube having oval cross section is subjected to pressure its cross section tends to change from oval to circular.
Construction of a Bordon GaugeBourdon tube gauges consist of a circular tube.
One end of the tube is fixed while the other end is free to undergo elastic deformation under the effect of pressure.
Fixed end is open and pressure which is to be measured is applied at the fixed end.
Free end is closed and undergoes deformation under the effect of pressure.
Due to applied pressure the circular tube tends to uncoil and become straight along the dotted line.
Working of Bourdon Gauge
As the pressure is applied at the fixed end free end undergoes deformation.
The free end is attached with sector which further meshes with the pinion on which pointer is mounted.
Deformation of the pointer is transferred to pointer via this mechanism.
As a result point undergoes deflection and shows the pressure reading on calibrated dial.
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Answer:
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Explanation:
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Can some help me with this !!! Is 26 points!!
In vertical analysis, each item is expressed as a percentage of:Multiple ChoiceTotal assets on the balance sheet.Total cash on the balance sheet.Total current assets on the balance sheet.None of these answers are correct.
: None of these answers are correct.
In vertical analysis, each item is expressed as a percentage of a base amount within the same financial statement. The base amount varies depending on the purpose of the analysis. Common base amounts used in vertical analysis include total assets, total liabilities, net sales, or total revenue.Vertical analysis helps to assess the relative proportion of each item in relation to the base amount and provides insights into the composition and structure of the financial statement. By expressing each item as a percentage, it allows for meaningful comparisons and trend analysis over time.
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The beam has a rectangular cross section and is subjected to the loading shown. Determine the state of stress at point B. Take F1 = 420 lb, F2 = 490 lb. (Figure 1) Part B Find Oy Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive in case of tension. Oy = 0 psi Submit Previous Answers Correct Part C Figure < 1 of 1 > Find Try Express your answer to three significant figures and include the appropriate units. HA ? Try = Value Units in. 2 in. Submit Request Answer 10 in. 1.5 in. 1.5 in.
The state of stress at point B is -221.66psi and the case of compression and positive in case of tension is 39.375psi
How to calculate the valueIn continuum mechanics, it should be noted that stress is a physical quantity that describes forces present during deformation.
In this case, ann object being pulled apart, such as a stretched elastic band, is subject to tensile stress and may undergo elongation.
The value will be:
= (420 × 1.5 × 3) / 3 × 4/12 × 3
= 39.375
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What is an undersea mountain range that forms at a divergent boundary?
A mid-ocean ridge is a submerged mountain range that develops at a diverging boundary. Anything that is situated or positioned beneath the surface of the sea or ocean is said to be "undersea."
Anything that is situated or placed beneath the surface of the sea or ocean is referred to as being "undersea." This can refer to a wide variety of geological structures and natural occurrences, including seamounts, trenches, and mountains under the sea. Marine biology is the study of underwater ecosystems and its inhabitants, and it involves looking at the diverse habitats and ecosystems that are present beneath the ocean's surface. Knowing the underwater environment is essential for discovering new species, protecting the planet's health, and developing its underwater resource potential. Research and technological advancements have made it feasible to investigate the ocean's depths in previously unimaginable ways, providing new insights about this
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as a small business owner you should assume the responsibility to determine whether the building space you are leasing is properly zoned for the usage of the business.
As a small business owner, it is crucial to assume the responsibility of determining whether the building space being leased is properly zoned for the intended usage of the business. Zoning regulations vary by location and are set in place to ensure the appropriate use of land and buildings within a community. By understanding and adhering to zoning requirements, business owners can avoid potential legal issues, penalties, and disruptions to their operations. Proper zoning also ensures compatibility with neighboring businesses and maintains the overall integrity of the community. Taking the time to research and confirm zoning regulations before leasing a space demonstrates responsible business ownership and contributes to the long-term success and sustainability of the business.
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Identify the Levels of Biological Organization below. Copy and answer each statement. Write
your answer on the answer sheet provided.
1. The basic unit of a chemical element
2. A group of atoms bonded together representing the smallest
unit that can take part in a chemical reaction.
3. Is a basic unit of life.
4. Group of similar cells that perform a function.
5. Group of tissues that work together to perform to perform
a specific function
6. A group of organs that work together to perform a
specific function.
7. An entire living thing that carries of the basic life functions.
Answer:
no idea
Explanation:
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Air enters a compressor operating at steady state at 176.4 lbf/in.^2, 260°F with a volumetric flow rate of 424 ft^3/min and exits at 15.4 lbf/in.^2, 80°F. Heat transfer occurs at a rate of 6800 Btu/h from the compressor to its surroundings. Assuming the ideal gas model for air and neglecting kinetic and potential energy effects, determine the power input, in hp
Answer:
\(W_s =\) 283.181 hp
Explanation:
Given that:
Air enters a compressor operating at steady state at a pressure \(P_1\) = 176.4 lbf/in.^2 and Temperature \(T_1\) at 260°F
Volumetric flow rate V = 424 ft^3/min
Air exits at a pressure \(P_2\) = 15.4 lbf/in.^2 and Temperature \(T_2\) at 80°F.
Heat transfer occurs at a rate of 6800 Btu/h from the compressor to its surroundings; since heat is released to the surrounding; then:
\(Q_{cv}\) = -6800 Btu/h = - 1.9924 kW
Using the steady state energy in the process;
\(h_2 - h_1 + g(z_2-z_1)+ \dfrac{1}{2}(v^2_2-v_1^2) = \dfrac{Q_{cv}}{m}- \dfrac{W_s}{m}\)
where;
\(g(z_2-z_1) =0\) and \(\dfrac{1}{2}(v^2_2-v_1^2) = 0\)
Then; we have :
\(h_2 - h_1 = \dfrac{Q_{cv}}{m}- \dfrac{W_s}{m}\)
\(h_2 - h_1 = \dfrac{Q_{cv} - W_s}{m}\)
\({m}(h_2 - h_1) ={Q_{cv} - W_s}\)
\(W_s ={Q_{cv} + {m}(h_2 - h_1)\) ----- (1)
Using the relation of Ideal gas equation;
P₁V₁ = mRT₁
Pressure \(P_1\) = 176.4 lbf/in.^2 = ( 176.4 × 6894.76 ) N/m² = 1216235.664 N/m²
Volumetric flow rate V = 424 ft^3/min = (424 × 0.0004719) m³ /sec
= 0.2000856 m³ /sec
Temperature = 260°F = (260°F − 32) × 5/9 + 273.15 = 399.817 K
Gas constant R=287 J/kg K
Then;
1216235.664 N/m² × 0.2000856 m³ /sec = m × 287 J/kg K × 399.817 K
\(m = \dfrac { 1216235.664 N/m^2 \times 0.2000856 m^3 /sec } {287 J/kg K \times 399.817 K }\)
m = 2.121 kg/sec
The change in enthalpy:
\(m(h_1-h_2) = m * C_p * \Delta T= m* C_p * ( T_1 -T_2)\)
\(= 2.121* 1.005* ( 399.817 -299.817)\)
= 213.1605 kW
From (1)
\(W_s ={Q_{cv} + {m}(h_2 - h_1)\)
\(W_s =\) - 1.9924 kW + 213.1605 kW
\(W_s =\) 211.1681 kW
\(W_s =\) 283.181 hp
The power input is \(W_s =\) 283.181 hp
Technician A says force on the brake pedal is transmitted directly to the wheels by linkage. Technician B says pedal force is transmitted by hydraulic pressure generated in the master cylinder. Who is correct
Given sentence'' Technician B says pedal force is transmitted by hydraulic pressure generated in the master cylinder'' is correct. Technician B is correct.
Technician B is correct. The brake pedal is connected to the master cylinder through a hydraulic system, which transmits the force generated by the pedal to the brake calipers or drums. A technician is a skilled employee who repairs, installs, replaces, and services various types of equipment and systems. Each day, a technician spends time tackling different tasks, depending on the issue, such as analyzing problems, running tests, and repairing equipment. The force on the pedal creates pressure in the master cylinder, which in turn activates the brakes through the hydraulic lines. There is no direct mechanical linkage between the brake pedal and the wheels in modern vehicles.
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Thomas is checking an electrical wire in a washroom with a wet floor. What in the electrical wire will help prevent electrical shock
Thomas is checking an electrical wire in a washroom with a wet floor. Ground-fault circuit interrupters in the electrical wire will help prevent electrical shock.
What is Ground-fault circuit interrupters?The ground-fault circuit interrupter, or GFCI, is a quick-response circuit breaker that may cut off electricity in as little as 1/40 of a second in the event of a ground fault.
It compares the current flowing into and out of the machinery along the conductors of the circuit.
Therefore, electrical shock can be avoided with the aid of ground-fault circuit interrupters in the electrical line.
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