Answers
The support reactions and forces in each of the members can be calculated using the method of section.
What is forces?Force is a physical quantity that is an influence on an object, which causes a change in its motion or shape. It is measured in units of Newtons when dealing with mass, or in units of pounds when dealing with a force on a surface. Forces can either be a push or pull, and when two forces are acting in opposite directions, they are known as equal and opposite forces.
This involves cutting the structure at a convenient point and applying the equilibrium equations at the cut section.
Support Reactions and Forces in Members:
Member | Type | Force
:---: | :---: | :---:
AB | Tie | 6 kN
BC | Strut | 6 kN
CD | Strut | 4 kN
DE | Strut | 6 kN
EF | Strut | 4 kN
CF | Strut | -2 kN
Method of Section: To calculate the force in member CF, the structure is cut at point E and the equilibrium equations are applied.
F_AB + F_BC + F_CD + F_DE + F_EF = 0 \
6 + 6 + 4 + 6 + F_EF = 0 \
F_EF = -22 kN
Since F_EF = -22 kN, F_CF = -22 + 4 = -18 kN
The method of section is suitable for this problem as it allows us to isolate the force in one member of the structure by cutting the structure at an appropriate point and applying the equilibrium equations.
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Related Questions
Based on your reading of the following passage, what should be done with older buildings to reduce the danger from earthquakes?
There is no more important factor in reducing a community’s risk from an earthquake than the adoption and enforcement of up-to-date building codes. Evaluating older buildings and retrofitting structural and nonstructural components also are critical steps. To survive and remain resilient, communities should also strengthen their core infrastructure and critical facilities so that these can withstand an earthquake or other disaster and continue to provide essential services.
rebuilding critical facilities
rebuilding critical facilities
enforcing new codes
enforcing new codes
razing outdated structures
razing outdated structures
retrofitting structural components
retrofitting structural components
Answers
Answer: Your welcome!
Explanation:
The answer is retrofitting structural components. Retrofitting is the process of strengthening or reinforcing existing structures to better withstand an earthquake. This can be done by adding additional reinforcements, such as bracing, walls, columns, and foundations, or by replacing and strengthening existing components. Retrofitting is an important step in reducing the risk of an earthquake, as it can help older buildings become more resilient and better able to withstand the shaking of an earthquake.
What is a triangle and the examples
Answers
Answer:
A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices. A triangle is also a polygon. The above figure is a triangle denoted as △ABC. Some real-life examples of triangles include sandwiches, traffic signs, cloth hangers, and a rack in billiards.
According to the unit, technology serves practical purpose.what practical purpose would television serve?
Answers
1. Entertainment: Television provides a source of entertainment that helps people relax and unwind after a long day.
2. Education: Television broadcasts educational programs that help people learn about various subjects, including science, history, and culture.
3. News and current affairs: Television is a primary source of news and current affairs, providing people with up-to-date information on local, national, and international events.
4. Advertising: Television is a powerful tool for advertising products and services, helping businesses reach their target audience and generate sales.
5. Social connection: Television programming provides a way for people to connect socially and share a common experience, such as watching a popular TV show or sporting event.
Ask the user for their first name
Say “Hello” followed by the user’s first name
Ask the user how old they are
Tell the user how old they will be in 10 years and in 20 years
Tell the user how old they were 5 years ago
Before you begin coding, use a word processing document to write pseudocode to plan out your program. Then, use your pseudocode to write your program.
Answers
Answer:
Explanation:
OUTPUT 'What is your name?'
INPUT user inputs their name
STORE the user's input in the name variable
OUTPUT 'Hello' + name
OUTPUT 'How old are you?'
INPUT user inputs their age
STORE the user's input in the age variable
IF age >= 70 THEN
OUTPUT 'You are aged to perfection!'
ELSE
OUTPUT 'You are a spring chicken!'
Match the key word on the left with its definition on the right.
1. structured plan for spending
2. administrative level overseeing fund-raising
3. top administrative level overseeing operations
A: Budget
B: Development director
C: Development director
Answers
Here are keywords on the left with its definition on the right matching.
A: Budget - structured plan for spending
B: Development director - administrative level overseeing fund-raising
C: Executive director - top administrative level overseeing operations
(Note: it seems that the third option was accidentally duplicated in the original prompt. Here is a corrected version)
Define the term keywords.
Keywords are specific words or phrases that are used in a search query to help retrieve relevant results from a database, search engine, or another information system. These words are chosen carefully and are usually related to the subject or topic being searched. Keywords are important in information retrieval because they help to narrow down the search results and make it easier to find the information that is most relevant to the user's needs. In digital marketing, keywords are also used to optimize content for search engines and improve the visibility of websites or online resources in search engine results in pages.
it seems that the third option was accidentally duplicated in the original prompt. Here is a corrected version:
Match the keyword on the left with its definition on the right.
1. structured plan for spending
2. administrative level overseeing fund-raising
3. top administrative level overseeing operations
A: Budget - structured plan for spending
B: Development director - administrative level overseeing fund-raising
C: Executive director - top administrative level overseeing operations
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An inside measurement can be taken with a tape measure by
Answers
Answer: Some people might bend the tape into the corner, which is a close guess at best. Or, you could run the tape measure right up against the side and add that reading to the size of the case of the tape measure.
Explanation: Either way you might need a dial caliper for a more accurate measurement
What is the usual method of becoming a photovoltaic installer?
Responses
an apprenticeship
an apprenticeship
a two-year technical school or college program
a two-year technical school or college program
a two-year program, followed by an apprenticeship
a two-year program, followed by an apprenticeship
an online course
Answers
Answer:
There are multiple paths to becoming a photovoltaic installer, but some common methods include:
1. Apprenticeship: Many photovoltaic installers start as apprentices, where they work under experienced professionals to learn the skills and knowledge required for the job. Apprenticeships can last for several years, depending on the program.
2. Technical school or college program: Another common path is to enroll in a two-year technical school or college program that focuses on solar energy and photovoltaic installation. These programs provide classroom instruction as well as hands-on training.
3. Combined program and apprenticeship: Some training programs offer a combination of classroom instruction and apprenticeship experience. For example, a program may require students to complete a two-year program and then spend additional time working as an apprentice to gain practical experience.
4. Online course: It's also possible to become a photovoltaic installer by taking online courses that provide training in solar energy and photovoltaic installation. However, it's important to ensure that the course is reputable and provides hands-on training opportunities.
Explanation:
Determine whether you will have enough fuel to fly a Cessna 182 Skylane from Phoenix to El Paso without refueling along the way.
Answers
A Cessna 182 Skylane has a range of 1,053 miles, and the distance from Phoenix to El Paso is around 350 miles by air and 430 miles on land on I-10 W. So yes, even just half fueled, a Cessna 182 Skylane would make it.
PART 2 OF THE TABLE
Answers
The following metrics converted are given as follows:
65 miles/hour is equal to 104.6071 kilometers/hour (km/h).65 miles/hour is equal to 29.0576 meters/second (m/s).60,000 Btu/h is equal to 17,584.2642 watts (W).120 lbm/ft^3 is equal to 1922.215608 kg/m^3.30 lb/in^2 is equal to 206.8428 kPa.200 lbm is equal to 90.718474 kilograms (kg).200 lbf is equal to 889.644 newtons (N)What is the calculations for the above response?
1) To convert 65 miles per hour to kilometers per hour, we can use the conversion factor:
1 mile/hour = 1.60934 kilometers/hour
So, 65 miles/hour is equal to:
65 miles/hour x 1.60934 kilometers/hour = 104.6071 kilometers/hour
Therefore, 65 miles/hour is equal to 104.6071 kilometers/hour (km/h).
To convert 65 miles per hour to meters per second, we can use the conversion factor:
1 mile/hour = 0.44704 meters/second
So, 65 miles/hour is equal to:
65 miles/hour x 0.44704 meters/second = 29.0576 meters/second
Therefore, 65 miles/hour is equal to 29.0576 meters/second (m/s).
2) To convert 60,000 British Thermal Units per hour (Btu/h) to watts (W), we can use the conversion factor:
1 Btu/h = 0.29307107 W
So, 60,000 Btu/h is equal to:
60,000 Btu/h x 0.29307107 W/Btu = 17,584.2642 W
Therefore, 60,000 Btu/h is equal to 17,584.2642 watts (W).
3) To convert 120 pounds-mass per cubic foot (lbm/ft^3) to kilograms per cubic meter (kg/m^3), we can use the conversion factor:
1 lbm/ft^3 = 16.0184634 kg/m^3
So, 120 lbm/ft^3 is equal to:
120 lbm/ft^3 x 16.0184634 kg/m^3/lbm/ft^3 = 1922.215608 kg/m^3
Therefore, 120 lbm/ft^3 is equal to 1922.215608 kg/m^3.
4) To convert 30 pounds per square inch (lb/in^2) to kilopascals (kPa), we can use the conversion factor:
1 lb/in^2 = 6.89476 kPa
So, 30 lb/in^2 is equal to:
30 lb/in^2 x 6.89476 kPa/lb/in^2 = 206.8428 kPa
Therefore, 30 lb/in^2 is equal to 206.8428 kPa.
5) To convert 200 pounds-mass (lbm) to kilograms (kg), we can use the conversion factor:
1 lbm = 0.45359237 kg
So, 200 lbm is equal to:
200 lbm x 0.45359237 kg/lbm = 90.718474 kg
Therefore, 200 lbm is equal to 90.718474 kilograms (kg).
6) To convert 200 pounds force (lbf) to newtons (N), we can use the conversion factor:
1 lbf = 4.44822 N
So, 200 lbf is equal to:
200 lbf x 4.44822 N/lbf = 889.644 N
Therefore, 200 lbf is equal to 889.644 newtons (N)
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