To understand the concept of moment of a force and how to calculate it using a scalar formulation.
The magnitude of the moment of a force with a magnitude F around a point O is defined as follows:
MO=Fd
where d is the force's moment arm. The moment arm is the perpendicular distance from the axis at point O to the force's line of action.
A stool at a restaurant is anchored to the floor. When a customer is in the process of sitting down, a horizontal force with magnitude F1 is exerted at the top of the stool support. When the customer is seated, a vertical force with magnitude F2 is exerted on the stool support. If the maximum moment magnitude that the stool support can sustain about point A is MA = 160 Nm , what is the maximum height d1 that the stool can have if the magnitudes of the two forces are F1 = 300 N and F2 = 720 N . Assume that moments acting counterclockwise about point A are positive whereas moments acting clockwise about A are negative.
Answers
Answer:
When analyzing forces in a structure or machine, it is conventional to classify forces as external forces;
constraint forces or internal forces.
External forces arise from interaction between the system of interest and its surroundings.
Examples of external forces include gravitational forces; lift or drag forces arising from wind loading;
electrostatic and electromagnetic forces; and buoyancy forces; among others. Force laws governing these
effects are listed later in this section.
Constraint forces are exerted by one part of a structure on another, through joints, connections or contacts
between components. Constraint forces are very complex, and will be discussed in detail in Section 8.
Internal forces are forces that act inside a solid part of a structure or component. For example, a stretched
rope has a tension force acting inside it, holding the rope together. Most solid objects contain very
complex distributions of internal force. These internal forces ultimately lead to structural failure, and also
cause the structure to deform. The purpose of calculating forces in a structure or component is usually to
deduce the internal forces, so as to be able to design stiff, lightweight and strong components. We will
not, unfortunately, be able to develop a full theory of internal forces in this course – a proper discussion
requires understanding of partial differential equations, as well as vector and tensor calculus. However, a
brief discussion of internal forces in slender members will be provided in Section 9.
Explanation:
Related Questions
a 4-m-long beam is subjected to a variety of loadings. (a) replace each loading with an equivalent force-couple system at end a of the beam. (b) which of the loadings are equivalent?
Answers
After the replacement of loading with equivalent force-couple system, Therefore, loadings (c) and (h) are equivalent.
in System Equivalents: two force-couple systems that have the same net moment and net force on a body.
RA= -(300+200)
= -500N
MA=400N.M +200*3
MA=1000N.M
RA=200+300
=500N
MA= -400+300*3
=500N.M
RA= -(200+300)
= -500N
RA=500N
MA=400-500*3
= -11OON.M
(B) No '2' beams are equivalent
Your question is incomplete, Find the attachment 'missing part'
The explanation is in attachment on Explanation 1 &2 attachment
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mualem, y. 1976. a new model for predicting the hydraulic conductivity of unsaturated porous media, water resour. res., 12, 513–522.
Answers
The Mualem model is a physics-based mathematical model developed by Yakov Mualem in 1976, which is used to predict the hydraulic conductivity of unsaturated porous media. The hydraulic conductivity is the measure of how easily water can move through soil, and it is a crucial parameter for understanding water movement in soil.
The Mualem model is an empirical model that was developed based on the principle of soil-water retention curve. The soil-water retention curve is a measure of the relationship between the soil water potential and the soil water content, and it is an essential property of unsaturated porous media.
The Mualem model uses two empirical parameters, namely the residual water content and the shape parameter, to predict the hydraulic conductivity of unsaturated porous media. These parameters are related to the soil water retention curve, and they are obtained through experimental measurements.
The Mualem model has been widely used in various fields, such as hydrology, soil science, and geotechnical engineering, to predict the hydraulic conductivity of unsaturated porous media. It is a simple yet effective model that provides a good approximation of the hydraulic conductivity of unsaturated porous media, and it has been validated by numerous experimental studies.
In conclusion, the Mualem model is a physics-based mathematical model developed by Yakov Mualem in 1976, which is used to predict the hydraulic conductivity of unsaturated porous media. It is an empirical model that uses two parameters obtained from the soil-water retention curve to predict the hydraulic conductivity. The Mualem model is widely used in various fields and provides a good approximation of the hydraulic conductivity of unsaturated porous media.
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Assume a regulator has a percent load regulation of 0.5%. What is the output voltage at full-load if the unloaded output is 12.0 V
Answers
Answer:
11.94 V
Explanation:
Generally the regulated voltage drops as load increases. When the voltage has dropped by 0.5%, it will be 60 mV less than the nominal value:
12.0 V - 0.06 V = 11.94 V . . . . full load voltage
Identify the following example as a fragment or a run-on. Then, rewrite the sentence(s), correcting the error.
John and Mary just broke up so you will not be seeing them together this afternoon.
Answers
I need to solve for d
Answers
Answer:
it's not included
Explanation:
plz exact ur explain
Answer:
si amor
Explanation:
Hoiykñjdnlklbutrk
20. A spur gear pinion and gear shown on a drawing have a diametral pitch of 12. The pitch radius of the pinion is 1.500 inches and the gear ratio is
specified to be 1:3. On the print, you would expect the pitch diameter of the gear to be
OA. 9.00 inches.
Answers
On the print you would expect the pitch diameter of the gear to be 9.00 inches. Option A is right.
How to solve for the diameterGear ratio = 1/3
This is solved as number of teeth on pinion / teeth on gear
= Np/Ng
The pitch diameter = 1.5 x 2
= 3
Diametral pitch = 12
NP = 3 x 12 = 36
This is the teeth on piston
Ng = 3NP
Ng = 3 * 36
= 108
Hence pitch diameter = 108/12 = 9
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**Can someone please help me solve these problems step by step, thank you!
1. If a 12-inch diameter driving Gear A has 100 tooth which turns CCW with a torque of 200 ft-lb and 100 rpm is meshed with Gear B, 25 tooth, turn along with Gear C, 50 tooth as they are a compound gear and Gear D, 150 tooth meshed with C.
-->sketch and annotate the gear train.
-->what direction does gear ratio B, C, and D turn?
-->what is the gear ratio for B, C, and D?
-->what is the angular velocity for gears B, C, and D?
-->what is the torque for gears B, C, and D?
-->what is the diameter of gears B, C, and D?
2. In a pulley system, pulley A is moving 1000 rpm and has a diameter of 18inches. There are two pulleys with different sizes, B moving ot 1575 rpm and C moving at 1850 rpm attached on a single axle.
-->sketch and annote the pulley system.
-->what is the diameter of pulley B and pulley C?
Answers
Answer:
The answer is "\(\bold{11.428 \ in \ \ and \ \ 9.729 \ in}\)".
Explanation:
The second question solution can be defined as follows:
\(N_A= 1000 \ rpm\\\\N_B=1575 \ rpm\\\\N_C=1850 \ rpm\\\\D_A= 18 \ in \\\\\)
In point 1:
Calculating the value of the linear velocity is the same:
\(\to V_A=V_B\\\\\to \pi D_A N_A=\pi D_BN_B\\\\\to D_B= \frac{D_A \times N_A}{N_B}\)
\(=\frac{18 \times 1000}{1575}\\\\=11.428 \ in \ \ \text{Diameter of pulley B}\)
In point 2:
\(\to V_A=V_C\\\\\to \pi D_A N_A=\pi D_C N_C\\\\\to D_C=\frac{D_A \times N_A}{N_C}\\\\\)
\(=\frac{1000 \times 18}{1850}\\\\=9.729 \ in \ \ \text{Diameter of pulley B}\)
Given int variables k and total that have already been declared, use a do...while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. Thus your code should put 1*1 + 2*2 + 3*3 +... + 49*49 + 50*50 into total. Use no variables other than k and total.
Answers
Answer:
k-1000
Explanation:
Answer:
k = 1;
total = 0;
do {
total = total + (k*k);
k++;
} while (k <= 50);
Explanation:
answer using Java
the fixed scale specifies 10.5 millimeters and the thimble specifies 30 hundredths of a mm. what is the total value shown by the micrometer when you add these readings together
Answers
Answer:
10.80 mm
Explanation:
Given that the reading of the fixed scale is : 10.5 mm
The thimble scale specifies : 0.30 mm
The micrometer reading will be : 10.5 + 0.30 =10.80 mm
Two 125 volt receptacles on a 20 amp, 120 volt branch circuit are installed in the laundry room. One (1) is for a washer and is within 6ft of the laundry sink and the other (2) is on a wall more than 6ft from the sink. The receptacles are required to have _____.
Answers
The National Electrical Code (NEC) requires that all 125-volt, 15 and 20-amp receptacles in dwelling units be of the grounding type, and that 20-amp receptacles be used only where the circuit is protected by a 20-amp overcurrent device.
In the given scenario, both the receptacles are 125-volt and on a 20-amp, 120-volt branch circuit. As per NEC requirements, the receptacles need to be of grounding type and protected by a 20-amp overcurrent device.
Additionally, the receptacle for the washer, which is within 6 feet of the laundry sink, needs to be a Ground Fault Circuit Interrupter (GFCI) receptacle. This is because the NEC requires that all 15 and 20-amp, 125-volt receptacles installed within 6 feet of a sink in laundry rooms be GFCI protected.
However, the other receptacle which is more than 6 feet away from the sink does not require GFCI protection but should still be of the grounding type and protected by a 20-amp overcurrent device.
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(T/F) it takes less gas to restart a vehicle than it does to let it idle for one minute.
Answers
True, it is generally true that it takes less gas to restart a vehicle than it does to let it idle for one minute.
The amount of gas used while idling varies depending on several factors, including the size of the engine, the age of the vehicle, and the outside temperature. However, most experts agree that idling for more than 10 seconds uses more fuel than restarting the engine.
Restarting a vehicle uses a small amount of gas, typically about 10 seconds' worth. This is because modern vehicles are designed with fuel injection systems that use electronic sensors to adjust the fuel-to-air ratio, which means that very little fuel is used during the initial startup.
There are also environmental benefits to turning off the engine instead of idling. Idling for extended periods can contribute to air pollution and greenhouse gas emissions, as well as wear and tear on the engine.
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Which of the following refers to the process in which engineers complete and repeat a sequence of steps to come closer to the project goal?
Answers
The process in question is referred to as the iterative design process. Engineers utilize this method by completing and repeating a sequence of steps in order to continually improve and refine their designs as they work towards achieving the project goal. This approach allows for flexibility and adaptability in the design process, as engineers can make adjustments and modifications based on feedback and testing, ultimately leading to a more successful outcome.
A wheel tractor is operating in it is fourth gear range with full rated revolution per minute. Tractors speed is 7.00 miles per hour. Ambien air temperature is 60 Fahrenheit, and operating attitude is sea level. This tractor is towing a fill material loaded pneumatic trailer while climbing with 5 % slop. Rolling resistance is 55lb/ton. Tractor is single axle and it is operating weight is 74,946 lb. The loaded trailer weighs 55,000 lb. The weight distribution is for the combined tractor- trailer unit is 53% to the drive axle and 47% to the rear axle.
The manufacturer, for the environmental conditions as given above, rates the tractive effort of the new tractor at 330 rimpull HP. What percentage of this manufacturers rated rimpul HP actually develop?
Answers
2–2 Assume you were specifying an AISI 1060 steel for an application. Using Table A–21,
(a) how would you specify it if you desired to maximize the yield strength?
(b) how would you specify it if you desired to maximize the ductility?
Answers
(a) From Table A–21, it can be observed that the AISI 1060 steel has the highest yield strength (965 MPa) for the cold-drawn/hardened and tempered condition (CDHT).
Therefore, the specification for the AISI 1060 steel can be made as follows:
AISI 1060 CDHT steel with a minimum yield strength of 965 MPa.This specification would ensure that the steel has the maximum yield strength possible and is suitable for applications that require high strength.
(b) From Table A–21, it can be observed that the AISI 1060 steel has the highest elongation (12%) for the annealed condition. Therefore, the specification for the AISI 1060 steel can be made as follows: AISI 1060 annealed steel with a minimum elongation of 12%.
This specification would ensure that the steel has maximum ductility and is suitable for applications that require high toughness and deformation without fracture.
The AISI 1060 steel is a type of high carbon steel that has a carbon content ranging between 0.55% to 0.65%. It is one of the most commonly used steels for industrial applications that require high strength and durability.The specification of AISI 1060 steel depends on the desired properties of the material for the particular application.
Two important properties of AISI 1060 steel are its yield strength and ductility. In order to maximize the yield strength of the steel, the following specification can be made:
Specification to Maximize Yield Strength:
From Table A–21, it can be observed that the AISI 1060 steel has the highest yield strength (965 MPa) for the cold-drawn/hardened and tempered condition (CDHT).
Therefore, the specification for the AISI 1060 steel can be made as follows:
AISI 1060 CDHT steel with a minimum yield strength of 965 MPa.This specification would ensure that the steel has the maximum yield strength possible and is suitable for applications that require high strength.
To maximize the ductility of the steel, the following specification can be made:
Specification to Maximize Ductility:
From Table A–21, it can be observed that the AISI 1060 steel has the highest elongation (12%) for the annealed condition. Therefore, the specification for the AISI 1060 steel can be made as follows: AISI 1060 annealed steel with a minimum elongation of 12%.
This specification would ensure that the steel has maximum ductility and is suitable for applications that require high toughness and deformation without fracture.
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It is possible to produce a perfectly crystalline solid that does not contain any vacancies. TRUE or FALSE
Answers
The statement "It is possible to produce a perfectly crystalline solid that does not contain any vacancies" is TRUE.
A perfectly crystalline solid that does not contain any vacancies is indeed possible. In a crystalline solid, the atoms or ions are arranged in a highly ordered and repeating pattern called a crystal lattice. Vacancies refer to the empty spaces or missing atoms within this lattice. In a perfect crystal, every lattice site is occupied by an atom, leaving no vacancies. Achieving a vacancy-free crystal requires precise control over the growth conditions and meticulous purification of the materials used.
By employing techniques such as epitaxial growth, where atoms are added to the crystal lattice layer by layer, it is possible to create a perfectly crystalline solid without any vacancies. This level of perfection is essential in certain applications, such as semiconductor devices, where even a small number of vacancies can significantly impact the material's properties.
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A______relay is designed to accept additional sets of contacts called add-on contacts or adder decks.
Answers
A multi-deck relay that is designed to accept additional sets of contacts.
A multi-deck relay is a type of relay that allows for the attachment of extra sets of contacts, known as add-on contacts or adder decks. These additional contacts can be used to increase the functionality and versatility of the relay.
For example, let's say we have a basic relay with one set of contacts. This relay can be used to control a single circuit. However, if we need to control multiple circuits simultaneously, we can add more sets of contacts to the relay by attaching add-on contacts or adder decks.
Each additional set of contacts operates independently of the main set of contacts in the relay. This means that the main set of contacts can control one circuit, while the add-on contacts can control other circuits.
Therefore, a multi-deck relay is designed to accept additional sets of contacts, such as add-on contacts or adder decks. These additional contacts provide increased functionality and allow the relay to control multiple circuits simultaneously.
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Which three items below should a driver be able to identify under the hood of a car?
Answers
Answer:
Engine oil level.
Brake fluid.
Power steering fluid.
Tech A says that electromotive force is also known as voltage. Tech B says that when electrons flow in
one direction only, this is DC. Who is correct?
ту
O Tech A
O Tech B
O Both A and B
Neither A nor B
Answers
Answer:
neither
Explanation:
yeah
Grizzly bears in captivity frequently display abnormal behaviors, such as repetitive pacing, swaying from side-to-side, and biting the bars of their enclosure. In order to improve animal welfare, zoos and parks need to stimulate their captive bears to behave as closely as possible to their wild counterparts. Bear sanctuaries are an ideal place where grizzly bears can live out their lives in an enriched and safe environment that is as close their natural habitat as possible. Which of the following statements best expresses the main conclusion of the above argument?
Answers
Note that where Grizzly bears in captivity frequently display abnormal behaviors, such as repetitive pacing, swaying from side to side, and biting the bars of their enclosure, the statement that best expresses the main conclusion of the above argument is: "Bears need to be in an environment as close as possible to their natural habitat." (Option 2)
What is the rationale for the above response?Grizzly bears in captivity exhibit abnormal behaviors, which is a sign of poor animal welfare.
To improve their welfare, they need to be in an environment as close as possible to their natural habitat. Bear sanctuaries provide an ideal solution by providing an enriched and safe environment for the bears, mimicking their natural habitat. This helps to reduce abnormal behaviors and improve their overall quality of life.
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Which of the following best describes the Delaney Clause?
A. government action that prevents the intentional addition of compounds that have been shown to cause cancer in animals or humans
B. government recommendation that all predatory fish be tested for mercury before being sold to the customer
C. list of food additives generally regarded as safe; established in 1958 by the U.S. Congress
D. pending legislation to ban irradiation as a method of food preservation
Answers
The correct option is (A) government action that prevents the intentional addition of compounds that have been shown to cause cancer in animals or humans.
The Delaney Clause is best described as a government action that prevents the intentional addition of compounds that have been shown to cause cancer in animals or humans.
The Delaney Clause is a 1958 amendment to the United States Federal Food, Drug, and Cosmetic Act that mandates the United States Food and Drug Administration (FDA) to prohibit approving foods containing a substance that has been found to cause cancer in humans or animals, whether it is added deliberately or inadvertently.
James Delaney, a New York congressman who served from 1945 to 1969, was the author of the Delaney Clause. The clause is also called the Food Additives Amendment of 1958. The clause was added to the Federal Food, Drug, and Cosmetic Act after several products, including a dye known as butter yellow, were found to be cancer-causing.
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suppose a three-phase uncontrolled bridge rectifier is required to produce an rms voltage across the load of at least 380 v. what must the minimum amplitude of the rectifier's input sinusoidal phase voltage be?
Answers
Each phase voltage source is connected to the anode of a diode in a three phase half wave unregulated converter. Three diodes' cathodes are connected to one another to create a positive load terminal.
The three-phase voltage is what?On the other hand, a three-phase connection consists of three distinct conductors required for electrical transmission. Up to 230 Volts of voltage may be included in a single-phase power supply system.
A bridge rectifier converts AC to DC in what way?The AC input from the mains is first stepped down to a lower voltage. The negative cycle of the AC waveform is then eliminated by passing this AC supply through a rectifier circuit. After that, the signal is filtered to produce the DC output.
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In using the bolt cutter shown, a worker applies two 300-N forces to the handles. Determine the magnitude of the forces exerted by the cutter on the bolt.
Answers
The bolt cutter is exerting a force of -600 N on the bolt. The negative sign indicates that the direction of this force is opposite to that of the forces applied to the handles.
To determine the magnitude of the forces exerted by the bolt cutter on the bolt, we need to use the principle of static equilibrium. This principle states that the sum of the forces acting on an object must be zero in order for the object to be in static equilibrium.
In this case, the forces acting on the bolt are the two 300 N forces applied to the handles of the bolt cutter, and the force exerted by the bolt cutter on the bolt. Let's call this force F. We can represent this situation with the following equation:
F + 2(300 N) = 0
Solving for F, we get:
F = -600 N
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Please help me it’s for science I only have a few minutes
Answers
Answer:
Rocks
Explanation:
I am not sure tho bc they are made out of coal and I think coal is a kind of rock
Answer:
I'm taking a guess for ya I shall say Metal or and Minerals
Explanation:
Good luck
What is the safe psi pressure for acetylene
Answers
Answer:
15psig
Explanation:
Why water parameters of Buriganga river vary between wet and dry seasons?
Explain.
Answers
Select the correct answer.
Which chemical can you use to assist with your motor fuel needs?
O A.
ethylene glycol
OB.
ethanol
O c.
butanol
OD.
pentanol
O E.
propranolol
Reset
Next
Answers
Answer: Ethanol
Explanation:
two technicians are discussing clogged egr passages. technician a says that clogged egr passages can cause excessive nox exhaust emission. technician b says that clogged egr passages can cause the engine to ping (spark knock or detonation). which technician is correct?
Answers
Where two technicians are discussing clogged EGR passages and Technician A says clogged EGR passages can cause excessive NOx exhaust emission and Technician B says that clogged EGR passages can cause the engine to ping (spark knock or detonation), note that BOTH technicians are correct. (Option C)
What is a Clogged Exhaust Gas Recirculation (EGR) Passage?These systems' passageways can get blocked, obstructing the flow and resulting in inadequate EGR flow, explosion, and excessive NOx emissions. If the solenoid, circuits, and EGR valve are all functioning properly and the route is clogged, cleaning the passageways with a wire brush will restore normalcy to the system.
When the EGR valve becomes clogged, the engine suffers a considerable loss of power, hauls, or difficulty of cold starts, as well as increased smoke emissions. If the EGR valve remains closed, it will not be able to reduce pollutants.
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Full Question;
Two technicians are discussing clogged EGR passages. Technician A says clogged EGR passages can cause excessive NOx exhaust emission. Technician B says that clogged EGR passages can cause the engine to ping (spark knock or detonation). Which technician is correct?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
what happens to the recievng end voltage as the load on a transmission line is increased if the load has a lagging power facotr
Answers
Answer:
The receiving end Voltage ( VR ) will reduce significantly
Explanation:
Determine what happens to the receiving end voltage
Given that ; Load on transmission line is increased and Load has a lagging power factor
Increase in load = Increase in reactive/real power drawn from the transmission line and this will cause an increase in the current drawn as well.
Vs = VR + j XL I
Vs = sending end voltage
VR = receiving end voltage
jXL I = voltage drop across reactance
The rotating and shifting of Vs to a new power angle ( lagging power factor ) without a change in magnitude will cause the value of the VR receiving end voltage to drop significantly
NEED A CHEN NOTATION DIAGRAM OF THE FOLLOWING INFORMATION
***** This is a Chen Notation ER Diagramming Assignment. Only Chen Notation Diagrams will be accepted. *****
During peak periods, the Temporary Employment Corporation (TEC) places temporary workers in companies. TEC’s manager gives you the following description and business rules of the business:
TEC has a file of candidates who are willing to work. They would like to put this Candidate File Information into a Database.
If the candidate has worked before, that candidate has a specific job history. (Naturally, no job history exists if the candidate has never worked.) Each time the candidate works temporarily for an outside company, one additional job history record is created. TEC wants the candidate's Job History in a database.
Each candidate has earned several qualifications. Each qualification may be earned by more than one candidate. (For example, it is possible for more than one candidate to have earned a BBA degree or a Microsoft Network Certification. And clearly, a candidate may have earned both a BBA and a Microsoft Network Certification.) TEC wants to store all existing and future types of Qualifications in a database.
TEC offers courses to help candidates improve their qualifications. This is done by offering training courses so that candidates can earn qualifications. TEC wants to keep store all courses that they offer for qualifications in a Database
Every course develops one specific qualification; however, TEC does not offer a course for every qualification. Some qualifications have multiple courses that develop that qualification.
Some courses cover advanced topics that require specific qualifications as prerequisites. Some courses cover basic topics that do not require any prerequisite qualifications. A course can have several prerequisites. A qualification can be a prerequisite for more than one course.
TEC also has a list of companies that request temporary employees.
Each time a company requests a temporary employee, TEC makes an entry in the Openings folder. That folder contains an opening number, a company name, required qualifications, a starting date, and anticipated ending date, and hourly pay. TEC wants to store all company requests for temporary jobs in a database.
When a candidate matches the qualification, the job is assigned, and an entry is made in the Placement Record folder. That folder contains an opening number, a candidate number, the total hours worked, etc. In addition, an entry is made in the job history for the candidate.
An opening can be filled by many candidates, and a candidate can fill many openings.
Summary Information that has to be Maintained
Client Company Information. These are companies that need Temporary Workers.
Job Opening Information, a Company offers one or more Temporary Job-Opening Positions
Qualification or Skills of the Candidates in (TEC). A Candidate can have one or more Qualifications
Candidate or Temporary Worker Information. A Candidate is a Temporary Worker seeking a position
Candidate JOB_HISTORY Information. This is a Temporary Workers Work History.
Placement Information. This is the Record of all Temporary Workers Placed in a Temporary Job
Training Courses that are being offered to (TEC) Candidates.
Training Courses that Candidates have taken
Given that information, do the following:
Draw the Chen ERDs for this enterprise
Identify all Entities
Identify all Attributes for the Entities
Identify all possible relationships
Identify the Cardinality for each relationship
Resolve all 1: N relationships
Resolve all M: N relationships
Identify Primary Keys and map the Foreign Keys based on the described Cardinality
Answers
The ER diagram for the Temporary Employment Corporation (TEC) based on the business rules given is given below: Attributes for Entities:
(One-to-Many)One candidate can have many job histories. (One-to-Many)One job history can belong to only one candidate. (One-to-One)One placement can belong to only one candidate. (One-to-One)One job opening can be placed by many placements. (One-to-Many)One candidate can have many placements.
In the given diagram below, all the relationships and primary keys are labeled correctly and the ER diagram is resolved for all M:N relationships and 1:N relationships. If you want to add more attributes to each entity, you can do it accordingly:
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Why should engineers avoid obvious patterns?
O
Patterns are used only by scientists to create more ways to discover knowledge.
O Patterns may cloud the vision of the design process and send the engineer off track.
Patterns tend to impose a prescribed way of thinking that will limit possible solutions.
O Patterns eliminate the brainstorming process and stifle the creative process.
Answers
Answer:
Patterns may cloud the vision of the design process and send the engineer off track.
Explanation:
Engineers use a cyclical process and must stay on track during this process. A key point to an engineer is being able to have the ability to use creative and critical thinking.
Answer:
Patterns tend to impose a prescribed way of thinking that will limit possible solutions.
Explanation:
While patterns help scientists and mathematicians solve problems, engineers should avoid obvious patterns. These patterns tend to lock in a prescribed way of thinking that will limit possible solutions. While making observations is helpful, don't force them into categories. Watch for observations that are unexpected, and compare and contrast all information before deciding on a final solution.