Is the following code segment valid although the identifier "three" is not typed?
let three = 3
var college = [Int]()
college = [1,2,three]
If yes, explain how. If not, suggest how to fix.
In the above code segment, how to print the integer 3 from the array? Write a swift statement.
In the above code segment, how to add the integer 4 to the array? Write a swift statement.
Answers
The code segment is not valid. To fix it, replace "three" with the integer 3 in the array initialization. To print the integer 3 from the array, use print(college[2]). To add the integer 4 to the array, use college.append(4).
No, the code segment is not valid because the identifier "three" is not defined or assigned a value before being used in the array initialization.
To fix the code, you can directly assign the integer 3 to the array without using the "three" identifier:
let three = 3
var college = [Int]()
college = [1, 2, three]
To print the integer 3 from the array, you can access the element at index 2 and use the print statement:
print(college[2]) // Output: 3
To add the integer 4 to the array, you can use the append method:
college.append(4)
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Related Questions
Translate the following Lisp functions to ML. Note that f is a function. Can the code be alternatively implemented using a loop in a straightforward fashion? If yes, give the loop implementation as well. A) (define count (lambda (f x) (cond ((cons? x) (if (f(car x)) (+1 (count f (cdr x))) (count f(cdr x)))) (else 0)))) (define count (lambda (fx) (cond ((fx) 1) ((cons? x) (if (null? (cdr x)) (count f(car x)) (+ (count f(car x)) (count f (cdr x))))) (else 0)))).
Answers
The translated ML function count takes two arguments, f (a function) and x (a list). It uses pattern matching to handle two cases. If x is an empty list ([]), it returns 0.
The loop implementation uses a recursive function called loop to iterate through the list x. The function loop takes two arguments: acc (the accumulator to keep track of the count) and the list itself. If the list is empty, it returns the accumulated count (acc). Otherwise, it checks if f hd evaluates to true, updating the accumulator accordingly. Then, it recursively calls loop with the updated accumulator and the remaining elements in the list. Finally, the loop is initiated by calling loop with an initial accumulator value of 0 and the input list x.
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The Industrial Age was ushered in by the invention of the steam engine. What did this invention lead to?
the use of irrigation for farming
the building of more factories near rivers and streams
the growth of the population in urban areas
the growth of the population in rural areas
Answers
Answer:
the building of more factories near rivers and streams
Explanation:
The steam engine helped to power the Industrial Revolution. Before steam power, most factories and mills were powered by water, wind, horse, or man. Water was a good source of power, but factories had to be located near a river.
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which is called the lost-wax casting: question 24 options: 1) spin casting 2) die casting without a hot chamber 3) pattern is melted out for recycling before pouring 4) continuous casting 5) centrifugal casting
Answers
Pattern is melted out for recycling before pouring is called the lost-wax casting.
In the manufacturing process known as casting, a liquid substance is often poured into a mold that has a hollow chamber in the desired shape before being left to solidify. Casting is another name for the solidified component that is released from the mold at the end of the process. By pouring molten metal into a mold, allowing it to solidify, and then cooling it to room temperature, the casting process is a manufacturing technique that creates metal pieces in the required shape. No matter how big the parts are, it can produce intricate and complex parts. Expendable and non-expendable casting are the two basic categories into which the modern casting process is split. The mold material—such as sand or metal—and the pouring technique—such as gravity, vacuum—further break it down.
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vết nứt tế vi là gì?
Answers
the technique of stone tool manufacture that involved knapping a core in such a way that large flakes could be removed and shaped into tools is called
Answers
The technique of stone tool manufacture that involved knapping a core in such a way that large flakes could be removed and shaped into tools is called flintknapping.
Flintknapping is the process of striking or "knapping" a stone core to produce sharp-edged flakes that can be used as tools. This technique was commonly used by early humans and prehistoric societies to create various types of tools, including arrowheads, scrapers, and blades. The controlled removal of flakes from the core allowed for the production of specialized tools with specific shapes and functions. Flintknapping played a crucial role in human technological development and is an important aspect of archaeology and anthropology studies.
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0-0 what is Boyle’s Law
Answers
Hope it helps
calculate force and moment reactions at bolted base O of overhead traffic signal assembly. each traffic signal has a mass 36kg, while the masses of member OC and AC are 50Kg and 55kg, respectively. The mass center of mmber AC at G.
Answers
Answer:
The free body diagram of the system is, 558 368 368 508 O ?? O, Consider the equilibrium of horizontal forces. F
Explanation:
I hope this helps you but I think and hope this is the right answer sorry if it’s wrong.
Please help ASAP and show all work. Thanks
1. An industrial water shutoff valve is designed to operate with 10 lb of effort force. The valve will encounter 100 lb of resistance force applied to a 2 in. diameter axle.
--a. What is the required actual mechanical advantage of the system?
--b. What is the required wheel diameter to overcome the resistance force?
2. A worker on a zip line crew lifts participants weighing approximately 200 lb several times a day from the ground 20 feet below. A block and tackle system is designed with 50 lb of effort force designed to lift the materials.
--a. What is the required actual mechanical advantage?
--b. How many supporting strands will be needed in the pulley system?
3. A simple gear train is composed of three gears. Gear A is the driver and has 10 teeth, gear B has 8 teeth, and gear C has 20 teeth.
--a. If the output is at C, what is the gear ratio?
--b. If gear A rotates at 60 rpm, how fast is gear C rotating?
--c. If the output of torque at gear C is 150 ftlb, what is the input torque at gear A?
4. Look at the picture provided.
--a. What class of lever is shown in the figure? (How do you know?)
--b. How much effort force is needed to balance the 100 lb load?
Answers
Answer:
1. --a 10
--b 100 in.
2. --a 4
--b 4
3. --a 2
--b 30 rpm
--c 75 ft.·lb.
4. --a Second class lever
--b 50 lbs.
Explanation:
The Actual Mechanical Advantage, AMA, is given as follows;
\(AMA = \dfrac{F_R}{F_E}\)
Where;
\(F_R\) = The resistance force magnitude
\(F_E\) = The effort force magnitude
1. a. We have;
\(F_R\) = 10 lb.
\(F_E\) = 100 lb.
\(AMA = \dfrac{100 \ lb}{10 \ lb} = 10\)
b. \(Mechanical \ advantage, \ M.A. = \dfrac{Distance \ moved \ by \ load}{Distance \ moved \ by \ effort}\)
The diameter of the axle, d = 2 in.
Let 'D' represent the diameter of the wheel, we have;
The distance moved by the axle, c = π·d
The distance moved by the load, C = π·D
\(M.A. = 10 = \dfrac{\pi \cdot D}{\pi \times 2}\)
∴ 2 × 10 = D
D = 20 in.
The required wheel diameter to overcome the resistance force, D = 100 in.
2. --a The mass of the participants, m = 200 lb.
The depth of the ground of the participants = 20 feet
The effort force = 50 lb
Actual Mechanical Advantage, AMA = 200 lb./(50 lb.) = 4
--b. The number of strands of pulley needed ≈ The mechanical advantage = 4
3. The number of gears on Gear A = 10 teeth
The number of gears on Gear B = 8 teeth
The number of gears on Gear C = 20 teeth
-a. Given that the driver gear = Gear A
The output gear = Gear C
\(The \ gear \ ratio = \dfrac{The \ number \ of \ teeth \ on \ the \ driven \ gear}{The \ number \ of \ teeth \ on \ the \ driver \ gear}\)
The driver gear = The input gear
Therefore, we have;
\(The \ gear \ ratio = \dfrac{20 \ teeth}{10 \ teeth} = 2\)
The gear ratio = 2
-b \(The \ gear \ ratio = \dfrac{The \ driver \ gear\ speed}{The \ driven \ gear\ speed}\)
Therefore, we have;
\(The \ gear \ ratio = 2 = \dfrac{60 \ rpm}{Gear\ C \, speed}\)
\(Gear\ C \, speed = \dfrac{60 \ rpm}{2} = 30 \ rpm\)
-c The output (driven) gear torque at Gear C = 150 ft.·lb.
\(The \ gear \ ratio = \dfrac{Driven \ gear \ torque}{Driver \ gear \ torque}\)
Therefore;
\(2 = \dfrac{150 \ ft \cdot lb}{Driver \ gear \ torque}\)
\(Driver \ gear \ torque = \dfrac{150 \ ft \cdot lb}{2} = 75 \ ft \cdot lb\)
The input (driver) torque at Gear A = 75 ft·lb
4. -a Given that the load is between the effort and the fulcrum, we have;
The type of lever is a second class lever
-b The distance between the load and the fulcrum = 4 feet
The distance between the effort and the fulcrum = 8 feet
We have;
100 lbs × 4 ft. = Effort × 8 ft.
∴ Effort = 100 lbs × 4 ft./(8 ft.) = 50 lbs.
The effort = 50 lbs.
If 540 J of energy is absorbed by a resistor in 3.6 min, what is the power
delivered to the resistor in watts?
Answers
Power delivered to the resistor in watts is 2.5 watts
Given:
Energy absorbed by resistor = 540 J
Time taken by resistor = 3.6 min
Find:
Power delivered to the resistor in watts
Computation:
Time taken by resistor = 3.6 min
Time taken by resistor = 3.6 × 60
Time taken by resistor = 216 sec
We know that;
Energy = Power × Time
So,
540 = Power × 216
Power = 540 / 216
Power = 2.5 watts
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Write a program that reads a list of scores and then assigns grades based
on the following scheme:
The grade is A if score is best – 10.
The grade is B if score is best – 20.
The grade is C if score is best – 30.
The grade is D if score is best – 40.
python
Answers
The py thon program that reads a list of scores and then assigns grades based on the given scheme is; As written below
How to write a Program in Py-thon?The program steps when written in Py-thon is;
Enter scores: 40 55 70 58
Student 0 score is 40 and grade is C
Student 1 score is 55 and grade is B
Student 2 score is 70 and grade is A
"""
def get_grade(points):
score = 70 - points
grades = [(40, 'D'), (30, 'C'), (20, 'B'), (10, 'A')]
result = ''
for grade in grades:
if score <= grade[0]:
result = grade[1]
return result
def scorer(points):
results = []
for point in points:
results.append(get_grade(point))
return results
if __name__ == "__main__":
user_input = input('Enter scores: ')
points = [int(n) for n in user_input.split(' ')]
points = [ int(n) for n in user_input.split(' ')]
scores = scorer(points)
for n in range(len(points)):
m sg = 'Student {} score is {} and grade is {}'.format(
n, points[n], scores[n]
)
print(m sg)
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-Why is it said that using faulty PPE could be just as dangerous as using no PPE at all?
Answers
Answer:
Explanation:
"Safety helmet" redirects here. It is not to be confused with hard hat.
Drug Enforcement Administration (DEA) agents wearing Level B hazmat suits
Personal protective equipment (PPE) is protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury or infection. The hazards addressed by protective equipment include physical, electrical, heat, chemicals, biohazards, and airborne particulate matter. Protective equipment may be worn for job-related occupational safety and health purposes, as well as for sports and other recreational activities. "Protective clothing" is applied to traditional categories of clothing, and "protective gear" applies to items such as pads, guards, shields, or masks, and others. PPE suits can be similar in appearance to a cleanroom suit.
The purpose of personal protective equipment is to reduce employee exposure to hazards when engineering controls and administrative controls are not feasible or effective to reduce these risks to acceptable levels. PPE is needed when there are hazards present. PPE has the serious limitation that it does not eliminate the hazard at the source and may result in employees being exposed to the hazard if the equipment fails.[1]
Any item of PPE imposes a barrier between the wearer/user and the working environment. This can create additional strains on the wearer; impair their ability to carry out their work and create significant levels of discomfort. Any of these can discourage wearers from using PPE correctly, therefore placing them at risk of injury, ill-health or, under extreme circumstances, death. Good ergonomic design can help to minimise these barriers and can therefore help to ensure safe and healthy working conditions through the correct use of PPE.
Practices of occupational safety and health can use hazard controls and interventions to mitigate workplace hazards, which pose a threat to the safety and quality of life of workers. The hierarchy of hazard controls provides a policy framework which ranks the types of hazard controls in terms of absolute risk reduction. At the top of the hierarchy are elimination and substitution, which remove the hazard entirely or replace the hazard with a safer alternative. If elimination or substitution measures cannot apply, engineering controls and administrative controls, which seek to design safer mechanisms and coach safer human behavior, are implemented. Personal protective equipment ranks last on the hierarchy of controls, as the workers are regularly exposed to the hazard, with a barrier of protection. The hierarchy of controls is important in acknowledging that, while personal protective equipment has tremendous utility, it is not the desired mechanism of control in terms of worker safety.rly PPE such as body armor, boots and gloves focused on protecting the wearer's body from physical injury. The plague doctors of sixteenth-century Europe also wore protective uniforms consisting of a full-length gown, helmet, glass eye coverings, gloves and boots (see Plague doctor costume) to prevent contagion when dealing with plague victims. These were made of thick material which was then covered in wax to make it water-resistant. A mask with a beak-like structure which was filled with pleasant-smelling flowers, herbs and spices to prevent the spread of miasma, the prescientific belief of bad smells which spread disease through the air.[2] In more recent years, scientific personal protective equipment is generally believed to have begun with the cloth facemasks promoted by Wu Lien-teh in the 1910–11 Manchurian pneumonic plague outbreak, although many Western medics doubted the efficacy of facemasks in preventing the spread of disease.[3]
Types
Personal protective equipment can be categorized by the area of the body protected, by the types of hazard, and by the type of garment or accessory. A single item, for example boots, may provide multiple forms of protection: a steel toe cap and steel insoles for protection of the feet from crushing or puncture injuries, impervious rubber and lining for protection from water and chemicals, high reflectivity and heat resistance for protection from radiant heat, and high electrical resistivity for protection from electric shock. The protective attributes of each piece of equipment must be compared with the hazards expected to be found in the workplace. More breathable types of personal protective equipment may not lead to more contamination but do result in greater user satisfaction.[4]
The use of a faulty PPE could be just as dangerous as not using any PPE at all because the user is still exposed to potential hazards and harm.
What is PPE?PPE is an acronym for personal protective equipment and it can be defined as a terminology that is used to denote any piece of equipment which offer protection to different parts of the body while working in a potentially hazardous environment.
Some examples of personal protective equipment (PPE) used to protect the different parts of the body are:
RespiratorsFace maskFace shieldGlovesBootsHelmetAccording to OSHA, the use of a faulty PPE could be just as dangerous as not using any PPE at all because the user is offered little or no protection at all.
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PPE is the first level of protecting an employee from hazards on the job site.
A) True
B) False
Answers
Answer:
The answer is B) False
Using the correlation for the second virial coefficient (Pitzer correlation), find the molar volume of acetylene vapour at 247.1 K and 13.5 bar, giving your answer to the nearest cm3/mol. The critical temperature is 308.3 K and the critical pressure of acetylene is 61.39 bar. Take R = 8.314 J/mol-K and the acentric factor for acetylene is 0.187.
Answers
The molar volume of acetylene vapor at 247.1 K and 13.5 bar, using the Pitzer correlation for the second virial coefficient, is approximately 72.5 cm3/mol.
Explanation:
The Pitzer correlation can be used to estimate the second virial coefficient of a gas. The equation is given by B = (RTc)/(Pc) * (1 + m(1 - (T/Tc)^(0.5))) where B is the second virial coefficient, R is the ideal gas constant, Tc is the critical temperature, Pc is the critical pressure, T is the temperature, and m is the acentric factor.
Plugging in the given values and solving for B, we get B = -0.009413 m3/mol. Then, using the ideal gas law, V = RT/P, we can calculate the molar volume as V = (RT)/P = (8.314 J/mol-K * 247.1 K) / (13.5 bar * 10^5 Pa/bar) ≈ 0.0725 m3/mol ≈ 72.5 cm3/mol.
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How to create Profit Centric Design Professionals ?
Answers
Profit-Centric Design Professionals can be developed by training and educating people on design principles, business strategies, and user research in order to create profitable solutions.
What does profit-centric mean?A profit center is a branch or division of a company that directly contributes to the bottom-line profitability of the corporation. A profit center is treated as a separate business, with revenues recorded separately.
Developing Profit Centric Design Professionals entails design, business, and user research training in order to create profitable solutions for clients.
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This agency develops standards for pressure vessels and pressure relief valves, as well as the design, welding, and materials that may be used in pipeline construction.
Select one:
a. American Petroleum Institute
b. American Society of Mechanical Engineers
c. American Gas Association
d. National Fire Protection Association
Answers
Answer:
b. American Society of Mechanical Engineers
Explanation:
The "American Society of Mechanical Engineers" (ASME) is an organization that ensures the development of engineering fields. It is an accreditation organization that ensures parties will comply to the ASME Boiler and Pressure Vessel Code or BPVC.
The BPVC is a standard being followed by ASME in order to regulate the different pressure vessels and valves. Such standard prevents boiler explosion incidents.
what component allows ics to determine whether or not a signal on a data line is a 0, a 1, or undetermined?
Answers
A comparator compares two voltages and produces an output signal based on the comparison. If the voltage on the data line is higher than the reference voltage, the comparator will output a 1.
What is Voltages?
If the voltage on the data line is lower than the reference voltage, the comparator will output a 0; if the voltage on the data line is equal to the reference voltage, the comparator will output an undetermined signal.
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he ListInterface is simply a repeat of the CollectionInterface.
Group of answer choices
True
False
Answers
False, the ListInterface is not simply a repeat of the CollectionInterface.
Is the ListInterface a repeat of the CollectionInterface?No, the ListInterface is not simply a repeat of the CollectionInterface. While both interfaces are part of the Java Collections Framework and share certain common methods, they serve different purposes and have distinct characteristics.
The CollectionInterface is a more general interface that defines basic operations for working with collections of objects, such as adding, removing, and checking for the presence of elements. On the other hand, the ListInterface extends the CollectionInterface and introduces additional methods specifically tailored for ordered collections, where elements can be accessed by their index.
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How to connect the wind turbines to the grid? Give advantages and disadvantages to your answer.
Answers
Answer:
Electricity from the wind turbine generator travels to a transmission substation where it is converted into extremely high voltage, between 155,000 and 765,000 volts, for long distance transmission on the transmission grid. This grid comprises a series of power lines that connect the power sources to demand centers.The advantages of wind energy are more apparent than the disadvantages. The main advantages include an unlimited, free, renewable resource (the wind itself), economic value, maintenance cost, and placement of wind harvesting facilities.
There are two potential fall hazards in this image. What are they?
Answers
Answer:
Lack of fall protection and Scaffold is overloaded
What braking system would be the most unsafe for a car going over 200mph?
Answers
Answer:
Deactivated Anti-Lock Braking System
Explanation:
Well this actually depends on the vehicles braking function
I'd say in this case not sure if ABS coz it prevents the vehicle from slipping while braking...
On the otherside ESP is inportant for it stability
Case Study # 1: Cadbury Crisis Management (Worm Controversy)
In India chocolate consumption was very low in the early 90’s but as the decade advanced the consumption drastically increased. The late 90’s witnessed a good chocolate market condition. The chocolate market in India is dominated by two multinational companies – Cadbury and Nestle. The national companies – Amul and Campco are other candidates in this race. Cadbury holds more than 70% of the total share of the market. Nestle has emerged by holding almost 20% of the total share. Apart from chocolate segment, there is also a big confectionery segment which is flooded by companies like Parry’s, Ravalgaon, Candico and Nutrine. All these are leading national players. The multinational companies like the Cadbury, Nestle and Perfetti are the new entrants in the sugar confectionery market. (Management paradise) There are several others which have a minor share in these two segments. According to statistics, the chocolate consumption in India is extremely low. If per capita consumption is considered, it comes to only 160gms in the urban areas. This amount is very low compared to the developed countries where the per capita consumption is more than 8-10kg. Observing this fact it would not be appropriate to consider the rural areas of India as it will be extremely low. This low consumption is owing to the notion behind consuming chocolates. Indians eat chocolates as indulgence and not as snack food. The major target population is the children. India has witnessed a slow growth rate of about 10% pa from the 70’s to the 80’s. But as the century advanced the market stagnated. This was the time when Cadbury launched its product- Dairy Milk as an anytime product rather than an occasional luxury. All the advertisements of Dairy Milk paid a full attention to adults and not children. And this proved to be the major breakthrough for Cadbury as it tried to break the conventional ideas of the Indians about chocolate.
The Worm Controversy
On October 2003, just a month before Diwali, the Food and Drug Administration Commissioner received complaints about infestation in two bars of Cadbury Dairy Milk, Cadbury India’s flagship brand with over 70% market share. He ordered an enquiry and went directly to the media with a statement. Over the following 3-week period, resultant adverse media coverage touched close to 1000 clips in print and 120 on TV news channels. In India, where Cadbury is synonymous with chocolate, the company’s reputation and credibility was under intense scrutiny. Sales volumes came down drastically in the first 10 weeks, which was the festival season; retailer stocking and display dropped, employee morale – especially that of the sales team – was shaken.
The challenge was to restore confidence in the key stakeholders (consumers, trade and employees, particularly the sales team) and build back credibility for the corporate brand through the same channels (the media) that had questioned it. In defense, Cadbury issued a statement that the infestation was not possible at the manufacturing stage and poor storage at the retailers was the most likely cause of the reported case of worms. But the FDA didn’t buy that. FDA commissioner, Uttam Khobragade told CNBC-TV18, “It was presumed that worms got into it at the storage level, but then what about the packing – packaging was not proper or airtight, either ways it’s a manufacturing defect with unhygienic conditions or improper packaging.” That was followed by allegations and counter-allegations between Cadbury and FDA. The heat of negative publicity melted Cadbury’s sales by 30 per cent, at a time when it sees a festive spike of 15 per cent. For the first time, Cadbury’s advertising went off air for a month and a half after Diwali, following the controversy. Consumers seemed to ignore their chocolate cravings.
Question:
1. How will the Cadbury can restore the confidence of the consumer?
Make an elaborate plan on how you are going to do it. Use the Decision-making Process. a) Diagnose problem
b) Analyze environment
c) Articulate problem or opportunity d) Develop viable alternatives
e) Evaluate alternatives f) Make a choice
g) Implement decision
h) Evaluate and adapt decision results
Answers
Step by step
On the position time curve, if the slope of a tangent at a point is positive, that means:
A: The object is moving backward
B: The object is not moving
C: The object is moving forward
Answers
Answer:
C. the object is moving forward
Explanation:
A positive slope means position is increasing when time is increasing. Generally, increasing position is "moving forward."
Answer:
C. The object is moving forward
the two wires are connected together at a. if the force p causes point a to be displaced horizontally 2 mm, determine the normal strain developed in each wire.
Answers
The normal strain developed in each wire, Strain = ΔL / L = 4 mm / L. The factor of (2 mm / L) in the denominator is due to the horizontal displacement of point A being proportional to the length of the wire.
What is Normal Strain?
The normal strain in a wire can be calculated with given formula:
Strain = ΔL / L.
where ΔL is the change in wire-length and L is the original wire-length.
In this case, since the two wires are connected together at point A, they will experience the same amount of strain.
To find the strain in each wire, we first need to find the change in length of each wire due to the horizontal displacement of point A.
Let's assume that the length of each wire is L.
When point A is displaced horizontally by 2 mm, the change in length of each wire can be calculated as:
ΔL = 2 * (L / 2) * (2 mm / L) = 4 mm
Strain = ΔL / L = 4 mm / L.
Note that this calculation assumes that the wires are made of a linear elastic material and that their behavior can be modeled as a simple spring.
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In a parallel circuit where the resistors in each branch are the same, the current flowing in
each branch is also the same.
True or false
Answers
Answer:
true because parallel doesn't still works even If one switch is off
IV. An annealed copper strip 9 inches wide and 2.2 inches thick, is rolled to its maximum possible draft in one pass. The following properties of annealed copper are given: strength coefficient is 90,000 psi; true strain at the onset of non-uniform deformation is 0.45; and, engineering strain at yield is 0.11. The coefficient of friction between strip and roll is 0.2. The roll radius is 14inches and the rolls rotate at 150 rpm. Calculate the roll-strip contact length. Calculate the absolute value of thetrue strain that the strip undergoes in this operation. Determine the average true stress of the strip in theroll gap. Calculate the roll force. Calculate the horsepower required.
Answers
Answer:
13.9357 horse power
Explanation:
Annealed copper
Given :
Width, b = 9 inches
Thickness, \($h_0=2.2$\) inches
K= 90,000 Psi
μ = 0.2, R = 14 inches, N = 150 rpm
For the maximum possible draft in one pass,
\($\Delta h = H_0-h_f=\mu^2R$\)
\($=0.2^2 \times 14 = 0.56$\) inches
\($h_f = 2.2 - 0.56$\)
= 1.64 inches
Roll strip contact length (L) = \($\sqrt{R(h_0-h_f)}$\)
\($=\sqrt{14 \times 0.56}$\)
= 2.8 inches
Absolute value of true strain, \($\epsilon_T$\)
\($\epsilon_T=\ln \left(\frac{2.2}{1.64}\right) = 0.2937$\)
Average true stress, \($\overline{\gamma}=\frac{K\sum_f}{1+n}= 31305.56$\) Psi
Roll force, \($L \times b \times \overline{\gamma} = 2.8 \times 9 \times 31305.56$\)
= 788,900 lb
For SI units,
Power = \($\frac{2 \pi FLN}{60}$\)
\($=\frac{2 \pi 788900\times 2.8\times 150}{60\times 44.25\times 12}$\)
= 10399.81168 W
Horse power = 13.9357
the architecture which is the basis for most modern computers is called:
Answers
The architecture that serves as the basis for most modern computers is called the Von Neumann architecture. It was proposed by mathematician and computer scientist John von Neumann in 1945 and has greatly influenced the design of computer systems ever since.
The Von Neumann architecture comprises four main components: the central processing unit (CPU), memory, input devices, and output devices. The CPU is responsible for executing instructions, performing calculations, and managing data. It contains the arithmetic logic unit (ALU) for performing arithmetic and logical operations, and the control unit (CU) for coordinating the flow of instructions and data.
Memory in the Von Neumann architecture stores both program instructions and data. It is typically divided into primary memory (RAM) and secondary memory (hard drives, SSDs). The architecture follows the "stored-program" concept, where programs and data are stored in the same memory space, allowing flexibility in software execution.
Input devices, such as keyboards and mice, allow users to interact with the computer and provide data for processing. Output devices, like monitors and printers, display the results of processing to users.
The Von Neumann architecture's simplicity, general-purpose design, and ability to execute a wide range of programs have made it the foundation for modern computer systems. However, it also has limitations, such as the "Von Neumann bottleneck," which refers to the limited speed of transferring data between the CPU and memory. Despite these drawbacks, the architecture remains the basis for most computers today.
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Calculate the current in the coiled heating element of a 240-V stove. The resistance of the element is 60 ohms at its operating temperature.
Answers
Answer:
4 A
Explanation:
Current is found using Ohm's law.
I = V/R
I = (240 volts)/(60 ohms) = 4 A
The heating element current is 4 amperes.
Which careers are expected to have average growth between 2010 and 2020? Check all that apply.
Civil Engineers
Marine Engineers
Electrical Engineering Technicians
Mechatronics Engineers
Mapping Technicians
Product Safety Engineers
Aerospace Engineers
Answers
Answer:
A,B,E,F
Explanation:
Civil engineers
Marine engineers
Mapping technicians
Product safety engineers
Determine whether each of these arguments is valid. If an argument is correct, what rule of inference is being used? If it is not, what logical error occurs? [2 points each] a) If n is a real number such that n > 1, then n2 > 1. Suppose that n2 > 1. Then n > 1. b) If n is a real number with n > 3, then n2 > 9. Suppose that n2 = 9. Then n s 3. c) If n is a real number with n > 2, then n2 > 4. Suppose that ns 2. Then n2 s 4.
Answers
The opposite of the implication is the contrapositive of p q, which is identical to (represents the inverse of). A statement's opposite or converse is not the same as the statement's original implication.
What is the reliability of arguments based on inference rules?The conclusion must follow from the truth of the premises for the argument to be considered sound. Building strong arguments uses rules of inference as a guide. We'll look into inference guidelines for many propositions.
What does a rules-of-inference argument look like?The construction of increasingly complicated argument forms will require inference rules, which are all simple argument forms. Example: p should read "It is snowing." If it is snowing, I shall study discrete mathematics, so let q be that.
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The market for college textbooks is illustrated in the graph below. In the market for textbooks, the current price of a textbook is $125. Which of the following statements best describes the current and future market conditions for textbooks?
Answers
Answer:
Option D is correct.
The market for textbooks has a shortage. There will be an upward pressure on price, which will cause quantity demanded to fall and quantity supplied to rise.
Explanation:
The complete question is attached to this solution.
Note that
- The quantity demanded is the negative sloping line in colour blue indicating that the quantity demanded increases as the price of the commodity (textbook) falls and the quantity demanded rises as the price of the textbook falls.
- The quantity supplied is the positive sloping line in colour red/orange indicating that the quantity supplied decreases as the price of the commodity (textbook) falls and the quantity supplied increases as the price of the textbook falls.
The quantity demanded and the quantity supplied balance each other and cross path at a point called the equilibrium point.
The price at this point is called the equilibrium price and the quantity at this point is the equilibrium quantity.
For this question, the equilibrium price = $150 and the equilibrium quantity that matches quantity demanded with quantity supplied = 500.
At prices greater than the equilibrium price, the quantity demanded falls and the quantity supplied increases, hence, there is a surplus of the commodity (textbook) as the quantity of textbooks supplied is way more than the quantity demanded and there is more than required textbooks.
At prices lower than the equilibrium price, the quantity demanded increases and the quantity supplied reduces, hence, there is a shortage of commodity (textbook) as all of the goods supplied are totally bought with extra demand remaining.
When there is a surplus or shortage, the market forces that are responsible for price fixing and quantity demanded work together to take the market back to equilibrium.
So, when the price is higher than equilibrium price and there is a surplus, the market works to reduce the price of the commodity so that quantity demanded can rise and quantity supplied can fall to counter this surplus.
When the price is lower than equilibrium price and there is a shortage, the market works to increase the price of the commodity so that quantity demanded can fall and quantity supplied can rise to counter this shortage.
The price of the textbook in the question, $125, is lower than the equilibrium price, $150, hence, there will be a shortage of textbooks because the quantity demanded, at this price, is higher than the quantity that will be supplied.
So, there is then a pressure on the price to rise back so that the quantity demanded reduces and the quantity supplied increases.
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