A double-acting cylinder with an adjustable cushion on the advance stroke only features a sketch where the cushioning mechanism is adjustable to control the deceleration of the piston during the advance stroke. On the other hand, a double-acting cylinder with a fixed cushion on both the advance and retract strokes is depicted in a separate sketch.
In a double-acting cylinder with an adjustable cushion on the advance stroke only, the sketch would show a cylinder with a piston connected to a rod. During the advance stroke, the piston moves forward to extend the rod. The cushioning mechanism, typically located at the end of the cylinder bore, can be adjusted to control the deceleration of the piston as it approaches the end of the stroke. This adjustable cushioning allows for fine-tuning the speed and smoothness of the advance stroke.
In contrast, a double-acting cylinder with a fixed cushion on both the advance and retract strokes would be represented in another sketch. This type of cylinder incorporates cushioning mechanisms at both ends of the cylinder bore. The fixed cushions provide consistent deceleration and absorption of energy during both the advance and retract strokes. This ensures controlled movement of the piston in both directions, enhancing the overall performance and stability of the system.
Both sketches would illustrate the basic components of a double-acting cylinder, such as the cylinder body, piston, rod, and cushioning mechanisms. However, the key difference lies in the type of cushioning employed and its adjustability.
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beefy anchor supports are needed to afix suspension bridges to the earth such as these ones from arthur ravenel jr. bridge in charleston, south carolina. let us model the illustrated orange anchor as a planar truss that is subjected to the cable tension load . knowing 80 kn, cm, cm, cm and , determine forces , , and in kn in members , and .
The given values that are calculated of the anchors are:
-84.56kN and 20 . 46kn
How to solve for the extensionWe have to start by drawing the various angles of the joint of A
Next we have to make use of the principle of Lami's theory as we solve for the value of B.
We would have
80 / sin 40.57 = fac / 223.43 = fab / sin 96
Fac = -84.56kN
Fab = 122.33KN
We are to find F D B of B next
FAC / sin 90 = fbc / sin 194
= 20 . 46kn
What is a tension load?This is the term that is used to refer to the applied force that would have to be divided by the unit that has the ability to be able to stretch a material. The load is what has the ability to be able to increase the length that a material would have. It is also the opposite of compression.
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what is the horsepower rating on the bmw m3 in north america?A) 473 horsepowerB) 463 horsepowerC) 450 horsepowerD) 470 horsepower
A) 473 horsepower rating on the bmw m3 in north america.
BMW's S58 twin-turbo 3.0-liter inline-six, which in standard form generates 473 horsepower and 406 lb-ft of torque, powers the M3. It is connected to either a six-speed manual transmission or an eight-speed automatic transmission that only drives the rear wheels. According to BMW, the M3 will reach 60 mph in 4.1 seconds and reach a top speed of 180 mph.
Engine output increases to 503 horsepower and 479 lb-ft of torque in the M3 Competition. BMW's xDrive AWD technology is now provided, whilst the Competition is only offered with an automatic transmission. Considering the car's capabilities, fuel economy isn't too poor; regardless of the transmission selected, it receives an EPA rating of 16/23 mpg city/highway.
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The following is a clarifier - thickener system to separate solids and liquids. Ignore the effect of solids content on density of the streams (i.e., assume density of solids = density water). Complete the following material balance table.
Following the material balance table are Flowrate (kg/h) | Clarifier | Thickener ,Inflow (solids + liquid) | 0 | 0 ,Overflow (liquid) | 0 | 0 ,Underflow (solids) | 0 | 0
What is the material ?The material refers to the substances or components from which something is made or constructed. Examples of materials include wood, metal, plastic, glass, paper, fabric, rubber, and various synthetic materials. Depending on the context, materials can also refer to substances used in the production of goods, such as food ingredients, dyes, chemicals, and minerals. Materials are essential for the production of goods, as they provide the necessary components for creating products.
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Any one know the answer?
Answer:
151.2 N
Explanation:
The upward force at A is 135/(135+325) times the total weight of the generator. The CW torque about point O that produces is ...
(460 mm)(135/460)(160 kg)(9.8 m/s^2) = 211.68 N·m
For F to produce half that torque, it must be ...
F(0.7 m) = (211.68 N·m)/2
F = 211.68 N·m/(1.4 m) = 151.2 N
The feasible region for the pure ILP problem:a. is equivalent to the feasible region for the LP relaxation problemb. is a lattice consisting of points corresponding only to integer values of the decision variablesc. is a k-dimensional hyperspaced. is impossible to determine
It is to be noted that the feasible region for the pure integer linear programming (ILP) problem: " is a lattice consisting of points corresponding only to integer values of the decision variables" (Option B).
What is a Pure Integer Linear Programming problem?An integer programming (IP) issue is a linear programming (LP) problem in which the decision variables must be integers. The goal function as well as the restrictions must be linear. The branch-and-bound approach is the most widely utilized method for solving an IP.
The LP relaxation of an ILP problem is obtained by relaxing the integer constraints on the decision variables, allowing them to take on fractional values.
Thus, the feasible region for the LP relaxation is a superset of the feasible region for the corresponding ILP problem, as it includes all of the points that are feasible for the ILP problem as well as additional points that are feasible for the LP relaxation but not the ILP problem.
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non-volatile memory is temporary and loses its contents when the power is turned off. T/F
Answer:
False
Explanation:
Non-volatile memory is a category of memory that retains its data even when the system is turned off or the power is off. It is sometimes referred to as static or permanent memory. For example, hard disk. Therefore, the given statement is false.
Answer:
TRUE
Explanation:
Volatile memory is memory or storage that loses its data when the computer's power is switched off. Volatile memory is a nonpermanent memory because when the power is off it loses its contents.
Example: Random Access Memory (RAM) is an example of volatile memory.
On the other hand, nonvolatile storage does not lose its contents when the computer power is switched off
Example: Read-only memory(ROM) is one example of Non-volatile storage.
Hence the given statement is "True".
Determine the length of the base if the height of a triangle is 28 feet and the area of the triangle is 350 square feet.
Answer: 25 ft
Explanation:
For a triangle, the area is given by
A = (1/2)base*height
Rearranging,
base = 2A/height
Substituting the given values,
base = 2(350 ft^2)/(28 ft) = 25 ft
A liquid of specific heat 3000J/kgk rise from 15°c to 65°c in 1 min when an electric heater is used. If the heater generate 63000J, calculate the mass of the water
Answer:
0.42 kg
Explanation:
Heat is proportional to mass by way of the conversion factor that is the inverse of the specific heat.
\(\dfrac{63000\text{ J}}{\dfrac{3000\text{ J}}{\text{kg$\cdot$K}}\cdot(65-15)\text{ K}}=0.42\text{ kg}\)
The mass of the liquid is about 0.42 kg.
In electrical engineering, a group of devices wired in sequence is called a:.
In electrical engineering, a group of devices wired in sequence is called a series circuit.
A series circuit is a type of electrical circuit in which the components are connected end to end so that the current flows through each component in turn without any branching.
This means that the current passing through one device is the same as the current passing through the other devices in the circuit. However, the voltage across each device in a series circuit is different and the sum of the voltage across each device is equal to the voltage of the source. Series circuits are commonly used in electronic devices such as Christmas lights, flashlights, and remote controls. One of the advantages of a series circuit is that it is easy to control the amount of current flowing through the circuit by adding or removing devices. Additionally, series circuits are relatively easy to analyze mathematically, making them a popular choice in electrical engineering. Overall, a series circuit is a simple and effective way to connect multiple electrical devices in a single circuit.Know more about the series circuit
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Define ways in which you would go about networking to explore opportunities in your career field and obtain more information for yourself. If applicable, explain ways in which you have already done that and how you will expand going forward. Choose one person in your career field that you would like to have a conversation with. What do you think you can learn from this person?
Answer:
mmmmmm
Explanation:
ffmfmfmmfmfmmfmfmfmfmfmffmfmfmfmfmfmfmfmfmfmfmfmfffmmfmffmmmfmfmfmfmfmfmfmfffmfmfmfmfmfmmfmfmmfmfmfmfmfmfffmfmfffmfmfmfmffmmfmfmffmfmfmfmfffmfmfmfmfmmmmfmfmfmfmfmfmfmmmfmfmfmfmfmfmfmfmmfmfmfmfmfmfmfmfmfmfmffmfmfmfmfmfmmfmfmmmmmfmfmfmffmfmfmfmffmffmfm
Explain the skills a prototype engineer working in the aerospace industry would need to construct an exercise facility for a space station.
Answer:
Get ready for a paragraph or something like that...
Writing skills, math skills, analytical skills, business skills, and critical thinking skills. Or as I like to call it big brain moment skills (I had to)
Answer:
?>/
>
>/?
Explanation:
Brainiest 4 Brainiest? (b4b)
huhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Answer:
?
Explanation:
what do you mean
I need to simulate this in Proteus, and what components should be connected to where?
Proteus simulation is a software tool. It is used for the designing and testing of electronic circuits. So thetool will be conneted to the LCD as well as the cips on the left.
How does this work ?This tool is popular among engineers and students as it allows them to test their designs virtually with ease, eliminating the need to physically build and test the circuit.
Through robust circuitry simulations under different conditions, designers can identify faults in functionality promptly and make necessary changes before building the physical prototype.
The utilization of Proteus simulation equips individuals with the ability to devise and assess electronic circuits in a highly efficient and economical manner, specifically targeting those found in mobile phones.
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Refrigerant-134a enters the evaporator coils placed at the back of the freezer section of a household refrigerator at 100 kPa with a quality of 20 percent and leaves at 100 kPa and −26°C. If the compressor consumes 600 W of power and the COP of the refrigerator is 1.2, determine: 3.1 the mass flow rate of the refrigerant and 3.2 the rate of heat rejected to the kitchen air.
The calculate value of Mass flow rate = 0.00414 kg/s while the rejected heat is 1.32 Kw
How to find the mass flow rate
We have to use the properties of the enthalpies from the pressure table
At p4 = 100 kpa
hf = 17.28 kj / kg
hfg = 217.16 kj / kg
enthalpy at the state 1
= 17.28 + 2*217.16
= 60.712 kj / kg
T1 = - 26 degrees celsius
enthalpy of vapor = 234.44 kj / kg
a. The mass flow rate
Ql = 1.2 x 600
= 720 watts
convert to Kw
= 0.72 KW
We have to find the mass flow rate
This is given as the formula
Ql / h1 - h4
we would have
0.72 / 2344 - 60.712
Mass flow rate = 0.00414 kg/s
b. We have to find the rejection of the heat through the use of the number 1 law of thermodynamics
Qh = Ql + W
= 0.72 + 0.6
= 1.32 Kw
Hence the mass flow rate is 0.00414 and the rejected heat rate is 1.32 kW
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What is the mode of operation of a ramp digital voltimeter
Answer:
The operating principle of a ramp type digital voltmeter is to measure the time that a linear ramp voltage takes to change from level of input voltage to zero voltage (or vice versa).
For what reasons is aluminum the metal most frequently used in metal-and-glass cladding systems?
Aluminum is the metal most frequently used in metal-and-glass cladding systems for several reasons.
Firstly, aluminum has excellent corrosion resistance, which is crucial for exterior applications where the cladding is exposed to weather conditions.
Secondly, aluminum is lightweight, making it easier to handle and install. This reduces the overall weight of the cladding system and the load on the building structure. Additionally, aluminum is highly malleable, allowing it to be easily shaped and formed into complex profiles and designs. This versatility makes it suitable for various architectural styles.
Lastly, aluminum is a sustainable material as it can be recycled indefinitely without losing its properties. This aligns with the growing emphasis on environmental considerations in construction.
Overall, these factors make aluminum the preferred choice for metal-and-glass cladding systems.
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1. You use
switches when you
have two switches controlling one or more
lights.
single pole
4-way
2-way
3-way
Sequential injection means injection occurs in the sequence of the firing order.
A. True
B. False
Explanation please
Sequential injection simply means injection occurs in the sequence of the firing order: A. True.
What is an injector?An injector can be defined as a mechanical device that is designed and developed for the introduction of fuel into the internal combustion system of an engine, especially under pressure.
In Engineering, there are two (2) main types of fuel injection system and these include the following:
Simultaneous fuel injection.Sequential fuel injection.A sequential fuel injection is typically designed and developed to spray fuel into the internal combustion system of an engine based on the firing order that is configured within it.
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12. Explain types of Social Engineering? Human-based, Computer-based, Mobile-based.
Social engineering is the act of manipulating people to disclose sensitive information, such as passwords or credit card numbers.
There are three main types of social engineering which include:Human-based Computer-based Mobile-based Explanation:
1. Human-based:Human-based social engineering involves tricking people into revealing sensitive information such as passwords and usernames.
2. Computer-based:Computer-based social engineering involves manipulating people using technology, such as phishing scams and other fraudulent messages. This type of social engineering is usually carried out over the internet.
3. Mobile-based:Mobile-based social engineering involves tricking people into installing malware or other harmful software on their mobile devices. This can include fake apps, phishing messages, or other fraudulent sch
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1. Human-based social engineering: This type of social engineering technique is carried out through personal interactions. 2. Computer-based social engineering: This type of social engineering technique is carried out using the Internet. 3. Mobile-based social engineering: This type of social engineering technique is carried out through mobile devices such as smartphones and tablets.
Social Engineering is a technique used by attackers to manipulate people into disclosing sensitive information, clicking on malicious links, or performing actions that may lead to compromising a system or network. There are different types of social engineering techniques, including
1. Human-based social engineering: This type of social engineering technique is carried out through personal interactions, such as phone calls, emails, or face-to-face interactions. It aims to trick or persuade individuals into divulging confidential information.
2. Computer-based social engineering: This type of social engineering technique is carried out using the Internet or other computer-related technologies. Examples of computer-based social engineering techniques include phishing, watering hole attacks, and baiting.
3. Mobile-based social engineering: This type of social engineering technique is carried out through mobile devices such as smartphones and tablets. Examples of mobile-based social engineering techniques include SMS phishing and fake apps.
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Write code that prints: Ready! firstNumber ... 2 1 Go!
Your code should contain a for loop. Print a newline after each number and after each line of text Ex: firstNumber = 3 outputs:
Ready!
3
2
1
Go!
Code:
firstNumber = 3
print('Ready')
for i in range(firstNumber, 0, -1):
print(i)
print('Go!')
What is Code?
Code is a set of instructions written in a programming language that tells a computer how to perform a specific task. It is the foundation of modern computing and forms the basis of all software, applications, and websites. Code is written by a programmer who takes an abstract concept and translates it into a language that the computer can understand. Code is then compiled, or translated, into a program that can be executed by a computer, which then performs the task according to the instructions provided.
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The wall of a house consists of two 125 mm thick brick walls with an inner cavity. The
inside wall has a 10 mm coating of plaster, and there is a cement rendering of 5 mm on the
outside wall. In one room of the house the external wall is 4 m by 2. 5 m, and contains a
window of 1. 8 m by 1. 2 m of 1. 5 mm thick glass. The heat transfer coefficient for the inside
and outside surfaces of the wall and the window are 8. 5 and 31 W/m2
. K, respectively. The
thermal conductivities are [K brick = 0. 43, K plaster = 0. 14, K cement = 0. 86 and K glass =
0. 76 W/m. K]. Calculate the proportion of the total heat transfer, which is due to the heat loss
through the window. Assume that the resistance of the air cavity is 0. 16 m2
. K/W
The total heat transfer is due to the heat loss through the window is 0.21%,The overall thermal conductance is the reciprocal of the overall thermal resistance is 1.9105 W/m²/K and the overall heat transfer coefficient based on the gross total area of the wall is approximately 2.5374 W/m²/K.
To calculate the proportion of the total heat transfer due to the heat loss through the window, we need to determine the overall thermal resistance of the wall and window system.
First, let's calculate the resistance of each component:
1. Resistance of the inside wall:
- Thickness of the brick wall = 125 mm = 0.125 m
- Thermal conductivity of brick (k_brick) = 0.43 W/m/K
- Area of the inside wall (A_wall) = 4 m × 2.5 m = 10 m²
- Resistance of the inside wall (R_inside_wall) = (Thickness of brick wall) / (Thermal conductivity of brick × Area of the inside wall)
R_inside_wall = 0.125 m / (0.43 W/m/K × 10 m²) = 0.2907 K/W
2. Resistance of the plaster:
- Thickness of the plaster (T_plaster) = 10 mm = 0.01 m
- Thermal conductivity of plaster (k_plaster) = 0.14 W/m/K
- Area of the inside wall (A_wall) = 4 m × 2.5 m = 10 m²
- Resistance of the plaster (R_plaster) = (Thickness of plaster) / (Thermal conductivity of plaster × Area of the inside wall)
R_plaster = 0.01 m / (0.14 W/m/K × 10 m²) = 0.0714 K/W
3. Resistance of the air cavity:
- Area of the window (A_window) = 1.8 m × 1.2 m = 2.16 m²
- Resistance of the air cavity (R_air_cavity) = 0.16 m²K/W
4. Resistance of the glass window:
- Thickness of the glass (T_glass) = 1.5 mm = 0.0015 m
- Thermal conductivity of glass (k_glass) = 0.76 W/m/K
- Area of the window (A_window) = 1.8 m × 1.2 m = 2.16 m²
- Resistance of the glass window (R_glass) = (Thickness of glass) / (Thermal conductivity of glass × Area of the window)
R_glass = 0.0015 m / (0.76 W/m/K × 2.16 m²) = 0.0011 K/W
Now, let's calculate the overall thermal resistance (R_total) of the wall and window system:
R_total = R_inside_wall + R_plaster + R_air_cavity + R_glass
= 0.2907 K/W + 0.0714 K/W + 0.16 m²K/W + 0.0011 K/W
= 0.5232 K/W
The proportion of the total heat transfer due to the heat loss through the window is the resistance of the glass window (R_glass) divided by the overall thermal resistance (R_total):
Proportion = R_glass / R_total
= 0.0011 K/W / 0.5232 K/W
≈ 0.0021 or 0.21%
Therefore, approximately 0.21% of the total heat transfer is due to the heat loss through the window.
To calculate the overall heat transfer coefficient based on the gross total area of the wall, we need to calculate the overall thermal conductance (U_total) first. The overall thermal conductance is the reciprocal of the overall thermal resistance:
U_total = 1 / R_total
= 1 / 0.5232 K/W
≈ 1.9105 W/m²/K
Finally, to calculate the overall heat transfer coefficient (U_overall) based on the gross total area of the wall, we need to account for the contributions of the inside and outside surfaces:
U_overall = U_total + (1 / h_inside) + (1 / h_outside)
Given that the heat transfer coefficients for the inside and outside surfaces of the wall are 8.5 and 31 W/m²/K respectively:
U_overall = 1.9105 W/m²/K + (1 / 8.5 W/m²/K) + (1 / 31 W/m²/K)
≈ 2.5374 W/m²/K
Therefore, the overall heat transfer coefficient based on the gross total area of the wall is approximately 2.5374 W/m²/K.
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cardinality sorting hackerrank solution python
Sorting by Cardinality The total number of 1s a number contains in its binary representation is known as its binary cardinality.
What is Python?
Python is an interpreted, object-oriented, high-level, dynamically semantic programming language. It is very attractive for Rapid Application Development as well as for use as a scripting or glue language to connect existing components together due to its high-level built-in data structures, dynamic typing, and dynamic binding. Python's straightforward syntax emphasizes readability and makes it simple to learn, which lowers the cost of program maintenance. Python's support for modules and packages promotes the modularity and reuse of code in programs. For all popular platforms, the Python interpreter and the comprehensive standard library are freely distributable and available in source or binary form.
Code:
def solution(array):
array.sort(key=lambda array:
(bin(array).count("1"), array))
return array
num = [31,15,7,3,2]
print(solution(num))
Output:
[2, 3, 7, 15, 31]
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Find the total present worth of a series of cash flows with an annual interest rate of 2% per year. Round your answer to the nearest cent.
Initial benefit of 5,330 at year 0
Benefit of 13,075 at year 3
Salvage value of 2,308 at year 4
The total present worth is $19,783.01
The present worth of a series of cash flow is the value of the cash flows in year 0 (today)
Cash flow in year 0 = 5330
Cash flow in year 1 = 0
Cash flow in year 2 = 0
Cash flow in year 3 = 13075 / (1.02)^3 = 12,320.86
Cash flow in year 4 = 2308 / (1.02)^4 = 2,132.24
Present worth = $19,783.01
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What did 15-year-old jack invent? why?
what was the most important lesson the teams learned when participating in the extreme by design projects?
what tools did the teams use to learn about the problems they were to solve?
what problem that the team asked to solve in this episode? why?
At the age of 15, Jack Andraka invented a new, non-invasive, paper-based test for the early detection of pancreatic cancer. He was inspired to create this device due to the death of a family friend from the disease. He was also motivated by the fact that the majority of pancreatic cancer cases are diagnosed too late for effective treatment.
What was the most important lesson the teams learned when participating in the extreme by design projects?The most important lesson the teams learned when participating in the Extreme by Design projects was the importance of collaborative problem-solving. Working in teams to solve complex problems with the help of mentors and professionals, the teams learned to effectively communicate and trust each other while also understanding the importance of planning and flexibility. This was an invaluable lesson that the teams took with them in their future endeavors.
What tools did the teams use to learn about the problems they were to solve?The teams used a variety of tools to learn about the problems they were to solve. These included research and interviews with experts, visits to relevant sites, analysis of existing data and trends, and the use of digital tools like mapping, 3D modeling, and virtual reality. Additionally, the teams used the design thinking process as a way to think critically and creatively when solving problems.
What problem that the team asked to solve in this episode?In this episode, the team was asked to solve the problem of how to create a sustainable and affordable housing solution for low-income families in San Francisco. This was an important problem because San Francisco is facing an affordable housing crisis, with rising housing costs making it difficult for many people to find a place to live. The team sought to create a solution that would help provide secure housing for those in need.
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For each number: a. State the null hypothesis. b. State the alternative hypothesis. c. What is the obtained t value? d. What is the significance or probability associated with the obtained t value? e. What do the results indicate? 1. A social psychologist was interested in the sex differences in the sociability of teenagers. Using the number of good friends as a measure, she compared the sociability level of 10 female and 10 male teenagers. The table below shows the data she gathered.
As per the given details, null hypothesis (H0) is that there is no significant difference in the sociability levels between female and male teenagers.
We must compare the social skills of male and female teenagers based on the number of close friends in order to conduct the statistical study. The following information is used in this comparison:
Females: 8, 3, 1, 7, 7, 6, 3, 8, 5, 8
Males: 1, 5, 8, 3, 2, 1, 2, 2, 4, 3
a. There is no discernible difference between male and female teenagers in terms of null hypothesis (H0).
b. Male and female teenagers differ significantly from one another in terms of friendliness, according to an alternative hypothesis (Ha).
The obtained t-value and significance can be calculated using the given data in the manners given below:
T-value determined is 1.168
Significance (p-value): 0.260
We fail to reject the null hypothesis since the significance (p-value), which is 0.260 and higher than 0.05, is more than 0.05.
Thus, this implies that, based on the available data, there is insufficient evidence to demonstrate a significant difference in the levels of sociability between teenage boys and girls.
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which line of the following would you insert so that it is possible for the program to output the following result:
6 81 0
1. a = random.randrange(10, 100, 3)
b = random.randit(0, 100)
c = random.choice((0, 100, 3))
2. a = random.randit(0, 100)
b = random.randrange(10, 100, 3)
c= random.choice((0, 100, 3))
3. a = random.choice((0, 100, 3))
b = random.randrange(10, 100, 3)
c = random.randit(0, 100)
4. a = random.randit(0, 100)
b = random.choice((0, 100, 3))
c= random.randrange(10, 100, 3)
The random function in python is used in different ways, below is an example with randint, randrange, and choice. Correct answer option 2
Python codeimport random
if __name__ == '__main__':
# Define variablesa = int()
b = int()
c = int()
print("Random result of a, b, and c (possible: 6, 81, 0)")
# Assign random values to variables a = random.randint(0,100)b = random.randrange(10,100,3)
c = random.choice((0,100,3))
# Outputprint(a,",",b,",",c)
Explanation of each caseRandom.randint(0,100)Randomly returns an integer between 0 and 100 (both inclusive).
Random.randrange(10,100,3)The randrange function is used bacause you like random numbers between 10 and 100 but separated by 3.
Random.choice((0,100,3))The function returns any element among a set defined between the parentheses.
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Pre-lab Assignment: "Use the introduction and experimental procedure to answer the following questions." 1. Complete the flowchart below by naming the appropriate physical separation technique onto the lines provided. 2) How does one calculate the mass of the sample? [0.5] 3) How does one calculate the mass of the rice? [0.5] 4) How does one calculate the mass of the sand? [0.5] 5) How does one calculate the mass of the salt? [0.5] 6) How does one calculate the percentage of each component in the mixture?
The questions in the pre-lab assignment focus on various aspects of the experiment, including physical separation techniques, calculation of sample mass, and determination of component percentages.
Step 1: The appropriate physical separation techniques to complete the flowchart could include methods such as filtration, evaporation, and magnetic separation, depending on the specific requirements of the experiment. These techniques are used to separate the different components of the mixture based on their physical properties.
Step 2: To calculate the mass of the sample, one typically weighs the entire mixture before performing any separation steps. This measurement provides the initial mass of the mixture, which serves as a reference for subsequent calculations.
Step 3: The mass of the rice can be determined by isolating the rice component through a suitable separation technique and weighing the collected rice. The difference between the initial mass of the mixture and the mass of the other components will represent the mass of the rice.
Step 4: Similarly, the mass of the sand can be calculated by separating the sand from the mixture and weighing it. The difference between the initial mass and the mass of the remaining components will correspond to the mass of the sand.
Step 5: To determine the mass of the salt, the salt component needs to be separated from the mixture and weighed. The difference between the initial mass and the masses of the other components will indicate the mass of the salt.
Step 6: The percentage of each component in the mixture can be calculated by dividing the mass of each component by the initial mass of the mixture and multiplying by 100. This calculation provides the proportion of each component relative to the total mass of the mixture.
By addressing these questions, students gain a better understanding of the experimental procedure, the use of physical separation techniques, and the importance of accurately calculating masses and percentages in the context of the experiment.
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What does efficiency measure?
Answer:
Efficiency is defined as any performance that uses the fewest number of inputs to produce the greatest number of outputs. Simply put, you're efficient if you get more out of less.
Explanation:
c) Three AC voltages are as follows:
e1 = 80 sin ωt volts;
e2 = 60 sin (ωt + π/2) volts;
e3 = 100 sin (ωt – π/3) volts.
Find the resultant e of these three voltages and express it in the form
Em sin (ωt ± φ). [5 MARKS]
When this resultant voltage is applied to a circuit consisting of a 10-Ω resistor and a capacitance of 17.3 Ω reactance connected in series, find an expression for the instantaneous value of the current flowing, expressed in the same form. [4 MARKS]
Answer:
E = 132.69 sin(ωt -11.56)
i(t) = 6.64 sin (ωt +48.44) A
Explanation:
given data
e1 = 80 sin ωt volts 80 < 0
e2 = 60 sin (ωt + π/2) volts 60 < 90
e3 = 100 sin (ωt – π/3) volts 100 < -60
solution
resultant will be = e2 + e2 + e3
E = 80 < 0 + 60 < 90 + 100 < -60
\(\bar E\) = 80 + j60 + 50 - j50\(\sqrt{3}\)
\(\bar E\) = 130 + (-j26.60)
\(\bar E\) = 132.69 that is less than -11.56
so
E = 132.69 sin(ωt -11.56)
and
as we have given the impedance
z = (10-j17.3)Ω
z = 19.982 < -60
and
i(t) = \(\frac{132.69}{19.982}\) sin(ωt -11.56 + 60)
i(t) = 6.64 sin (ωt +48.44) A
When a process is in a state of statistical control, all of the points on a control chart should fall within the control limits. However, it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart. Why?
it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart Because:
It can make it difficult to interpret patterns and draw conclusions in a run chart.It can lead hinder the process, and make it unstable.When a data point falls outside the control limits of a run chart ?If a data point falls is said to outside the control limits, we can say that the process is said to be out of one's control and it is good that an investigation is done to ascertain and remove the cause or causes.
So, it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart Because:
It can make it difficult to interpret patterns and draw conclusions in a run chart.It can lead hinder the process, and make it unstable.Learn more about data point from
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