Nope, not me. . . . . . . . . . . .
Answer:
i do
Explanation:
you are given a 7/16-in-dia, class 7 bolt with rolled threads is preloaded to 70% of its proof strength when clamping a 2.75 in-thick sandwich of solid steel. you are also to find the safety factors against fatigue failure, yielding and joint separation when a 1000 lbf (peak) fluctuating external load is applied. there is only 1 bolt used. the bolt modulus and the member are the same. hence, you are to calculate the joint factor and its coefficients followed by all the fatigue parameters. for this question, what is the value of the local mean fatigue stress () on the bolt in units of psi?
The local mean fatigue stress () on the bolt is 3846.15 psi
What is fatigue stress?
failure caused by repetition and load cycle of a structure or component. Even if the applied stresses are less than the component's allowable stress, failure from fatigue stress can still happen because of the frequency of the loads. Although fatigue stress is frequently linked to tensile loads, it can also happen frequently under compression loads. Flange: A ring-shaped bulk piping part that joins two pieces of pipe together or, more generally, connects piping to equipment. Although they can also be threaded, flanges are generally welded to a connected pipe. A gasket is positioned between two fibers for sealing and two flanges are bolted together using bolts and nuts.
The local mean fatigue stress () is calculated by dividing the fluctuating external load (1000 lbf) by the effective area of the bolt (A_e) and using the following equation:
= (1000 lbf) / A_e
Where A_e is the effective area of the bolt, which can be calculated using the following equation:
A_e = (π/4) * (7/16 in)^2 * (0.7) = 0.26 in^2
Therefore, the local mean fatigue stress () on the bolt is:
= (1000 lbf) / (0.26 in^2) = 3846.15 psi
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What is the BEST definition of engineering?
the observation of the natural world to develop theories
to make predictions about what will happen in certain circumstances
to create a base of knowledge about the world we live in
to apply scientific knowledge to solve real-world problems
Answer:
D. to apply scientific knowledge to solve real-world problems
Explanation:
Engineering involves with Science, Technology. It makes things useful to people.
I hope it helps! Have a great day!
pan~
Technician A says an automotive brake booster is a piston-type pump that develops pressure for the vehicles brake system. Technician B says an automotive brake booster is a vacuum operated device that assists brake pedal application. Who is right?
Note that where Technician A says an automotive brake booster is a piston-type pump that develops pressure for the vehicles brake system, and Technician B says an automotive brake booster is a vacuum-operated device that assists brake pedal application, BOTH technicians are right.
What is the rationale for the above response?As Technician B describes, a vacuum-assisted brake booster uses engine vacuum to aid the brake pedal. The vacuum is created by the intake manifold of the engine and is utilized to power a diaphragm within the brake booster. When the driver pushes the brake pedal, the vacuum is activated to increase the pressure on the brake master cylinder, making it simpler for the driver to apply the brakes.
A hydraulic-assisted brake booster, as described by Technician A, employs a piston-type pump to provide pressure for the vehicle's braking system.
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Assignment
1. Study the design of roof in the building where you live. What type of roofing design is your building?
2. State the types of roofing materials that is used in the building where you live.
3. Give a screen shot of the roof of your house.
Answer:
pls I am sorry dis is not a reasonable question
A gear train has a ratio of 40/24 and the driving gear is turning 100 RPM.
What is the speed of the driven gear in RPM?
Answer:
S2 = 60 RPM.
Explanation:
Given the following data;
Gear ratio = 40/24 (T2 = 40 and T1 = 24).
Speed of driving gear = 100 RPM
To find the speed of the driven gear;
Mathematically, gear ratio in terms of speed (RPM) is given by this formula;
\( S_{1} * T_{1} = S_{2} * T_{2} \)
Where;
S1 represents the speed of the driver gear.S2 represents the speed of the driven gear.T1 represents the number of teeth of the driver gear.T2 represents the number of teeth of the driven gear.Substituting into the equation, we have;
\( 100 * 24 = S_{2} * 40\)
\( 2400 = 40S_{2} \)
\( S2 = \frac {2400}{40} \)
S2 = 60 RPM.
Therefore, the speed of the driven gear is 60 revolutions per minute.
Technician A says an open-end wrench provides the best grip on a hex head fastener.Technician B says a box-end wrench provides the best grip on a hex head fastener. Who is correct? *
Answer:technician b only
Explanation:
Technician B says a box-end wrench provides the best grip on a hex head fastener is a correct statement.
What is an open-end wrench?An open-end wrench is known to be a type of wrench that has two flat sides which are known to be very important in gripping of the flat sides of square head or a hex – head nuts.
Conclusively, The best advantage of Box-ended wrenches is that the wrench is fully closed on both ends and as such technician B is correct.
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GMA (MIG) welding is a:
A) laser welding process.
B)
fusion welding process.
C)
pressure welding process.
D) resistance welding process.
Answer: Fusion
Explanation:
It has a tendency to fuse stuff
The correct answer is Option B).
GMA (MIG) welding is a fusion welding process.
Given data:
GMA (Gas Metal Arc) welding, also known as MIG (Metal Inert Gas) welding, is a fusion welding process. In GMA/MIG welding, a consumable electrode wire is used to create an electric arc between the wire and the workpiece. The arc heats and melts the base metals, and a shielding gas, typically a mixture of argon and carbon dioxide, is used to protect the weld pool from atmospheric contamination.
During the welding process, the molten electrode wire and the base metal fuse together to form a solid weld joint. This fusion of the materials is characteristic of fusion welding processes, where the base metals are melted to create the weld.
Hence, GMA/MIG welding is considered a fusion welding process.
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Which of the following is NOT a common type of vehicle inspection? Select one:
a. State safety inspection
b. Certified used car inspection
c. Engine component analysis inspection
d. Vehicle pre-purchase inspection
Answer:
what is information systems
a welder performance qualification test on 1" (25.4mm) thick plate. what range of base metal is the welder qualified to weld? How many tension specimens will be tested? And how many side bends will be tested?
A welder's accomplishment qualification test on an excellent" (25.4mm) thick plate determines their requirement range.
What does passing qualify the welder for?According to AWS D1.1 Structural Welding Code for Steel, passing this test qualifies them to bind base metals with thicknesses 'tween 0.5" (12.7mm) and 2" (50.8mm).
The qualification test requires two pressure specimens, that assess stiffness, and four side bend specimens, which judge ductility and healthiness.
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What is the difference between mnemonic codes and machine codes?
The difference between mnemonic codes and machine codes is that machine codes use binary, whereas mnemonic codes use shorthand English.
Mnemonics codes use shorthand English and machine codes use binary.
How do i code a hobby gearshift motor to speed 50 using only an arduino uno r3?
To code a hobby gearshift motor to run at a speed of 50 using an Arduino Uno R3, you can use pulse-width modulation (PWM) to control the motor speed.
General outline of the steps involved are:
1)Connect the hobby gearshift motor to the Arduino Uno. Ensure that you have the necessary motor driver or H-bridge circuit to interface the motor with the Arduino.
2)Set up the Arduino Uno by installing the Arduino IDE and connecting it to your computer.
3)Open the Arduino IDE and create a new sketch. Define the necessary pin for controlling the motor speed using PWM.
For example, you can use Pin 9 for this purpose:
const int motorSpeedPin = 9;
4)In the setup() function, configure the motor speed pin as an output:
void setup()
{
pinMode(motorSpeedPin, OUTPUT);
}
5)In the loop() function, use the analogWrite() function to set the desired speed for the motor.
Since the analogWrite() function uses PWM, the speed can be adjusted by varying the duty cycle from 0 to 255.
A duty cycle of 255 corresponds to the maximum speed. To achieve a speed of 50, you can use a duty cycle of approximately 128:
void loop()
{
analogWrite(motorSpeedPin, 128);
}
6)Upload the code to the Arduino Uno and observe the motor running at the desired speed.
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Which of the following would promote the isostatic adjustment of the crust resulting in the uplift of some mountains and possibly the formation of new fault lines?
Weight is a factor that would be known to promote the isostatic adjustment of the crust resulting in the uplift of some mountains and possibly the formation of new fault lines.
What is meant by isostatic adjustment?This is the term that is used in geography to refer to the ongoing movement of land that once used to be covered by the ice age glaciers.
The isostatic adjustment is known to be the function of the amount of weight that is on the surface of the earth. Now when the weight is less, the crust of the earth would have to rise the more but when it is more, the crust would start to sink.
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1. Which of the following is an engineering function in which an engineer takes new ideas for
products or processes and gets them ready for production?
O consulting
O development
O research
O analysis
Answer: development
Explanation:
A school uses a model to plan a greenhouse that is 6 mx 30 m. Which
dimensions can they use to create a scale model?
a. 1m x 15m
b. 2cm x 10m
c. 18cm x 80cm
d. 1m x 5m
Answer:
d. 1 m × 5 m
Explanation:
The model will be to scale if the second dimension is 5 times the first dimension. That is only the case for ...
1 m × 5 m
Answer:
B)1mx5m just answered on apex
Explanation:
What is the purpose of gears?
O To help wheels move in a circle.
O To help the fuel combust.
O To power the engine.
To transmit energy from one part of an engine to another.
Answer:
To help wheels move in a circle
Explanation:
how has ICT made the world smaller
Information and Communication Technology (ICT) has, in various ways, contracted the world to a much smaller scale.
How has ICT made the world smaller?Firstly, it has allowed rapid and trouble-free communication across lengthy distances, eliminating the hindrances of both time and distance.
This progress has stimulated the development of international trade and commerce and made it possible for people from all regions of the earth to come together to initiate projects and initiatives.
Additionally, ICT has simplified the approach of gaining access to and sharing information beyond borders, linking the planet more firmly and reducing deficiencies of knowledge.
Lastly, ICT has enabled individuals to journey more quickly and associate with cultures other than their own, inaugurating a spirit of worldwide fellowship.
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the branding, packaging, and labeling of your product should accomplish all of the following except
Answer:what is the following
Explanation:
Which of the following statements correctly describes a class K9 fuse?
A Class K9 fuse is a type of fast-acting fuse that is commonly used in high current applications.
What is the Voltage rating?It has a voltage rating of up to 600 volts and can handle currents ranging from 70 to 400 amperes. The K9 fuse is designed to protect electrical equipment from short circuits and overloads by breaking the circuit quickly when an excessive current flows through it.
This type of fuse is commonly used in applications such as motor protection, transformer protection, and power distribution systems. It is important to select the correct type and rating of fuse to ensure proper protection of the equipment and safety of personnel.
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what is mechanical engineer
When making the 2F lap joint, which part of the weld is in the horizontal position?
Answer:
3b position
Explanation:
''.''
Project: Timeline, Market, Budget
Engineers seek to solve problems. In this project, you will propose a solution for a problem facing your community. It may be a product that would make a certain activity safer or faster, or it may be a new process for protecting the environment in your area.
Assignment Directions
Write a 1000 word paper describing the problem, your proposed product or service, and some primary implementation plans.
Assignment Guidelines
Using the information from the research, your paper should contain the following:
Research problems in your community (environmental, social, economic).
Describe the problem.
Describe a solution (product or service)
Describe the market for the product or service.
Provide information about the proposed product or service and materials needed.
Include an estimated implementation timeline and budget for your product and service.
Summarize your findings about the problem and your solution.
List references for any research.
The problem description for the above recycling project is given as follows.
What is the paper about?Title: Smart Recycling Bins: Transforming Waste Management in the Community
Problem: Our community struggles with inefficient waste management, resulting in environmental, social, and economic challenges. Inadequate recycling practices and improper disposal methods contribute to pollution and increased waste management costs.
Solution: Introducing smart recycling bins, a technology-driven solution. These bins employ sensors and image recognition for automatic sorting, reducing contamination.
Market: The market for smart recycling bins caters to environmentally conscious individuals, businesses, and municipalities seeking sustainable waste management solutions.
Implementation: Research and development, prototype design, testing, manufacturing, and pilot deployment will take approximately 10 months. The estimated budget is $400,000.
Conclusion: Smart recycling bins offer an efficient, user-friendly approach to enhance recycling rates, reduce pollution, and educate the community about sustainable waste practices, leading to a cleaner and more sustainable future.
References:
(Include references for any research sources used in preparing the paper)
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 A game consists of a 3-card hand. What are the chances of have a pair (same face-value) in a hand, given the first two cards are not a pair?
Answer:13
Explanation:
The probability of getting a pair (but NOT three of a kind) in three-card poker would be 3744/22100 = .1694+.
Obviously any of the three cards NOT in the pair is equally likely to have been dealt to you last. So in the 1/3 of cases where the non-paired card was dealt last, then your criteria were met: first you got a pair, then you got something outside the pair. 1/3 of the above value is 1248/22100 = 0.05647+.
How did I get the 3744/22100 figure?
13 (number of ranks the pair could be in) TIMES 6 (number of ways to have two of the four cards within the paired rank) TIMES 48 (number of ways to have one of the other cards outside the pair) DIVIDED BY 22100 (which is 52 choose 3, the number of unique three card poker hands.)
Why is it important to know how to set-up a desktop computer?
You run the risk of losing crucial company data if your new PC is not configured properly. Discover our best advice for setting up and securing a new computer.
What does this word mean company?
If your new Computer is not configured properly, you run the danger of losing important business data that you cannot recover. Find out our best advice for setting up and protecting new computers.
A gathering of people is referred to as a "company." A popular word, "company" has a wide range of distinct meanings, all of which relate to a gathering or interaction of people. It's possible that businesses are referred to as companies most frequently. Battery manufacturing and distribution is done by Energizer.
synonyms; business. A family-run enterprise operated the corporation.
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c. calculate the instantaneous decay and neutron absorption rates for 239u nuclei and determine their fraction of the combined loss rate.
The decay constant of a radioactive nuclide is the probability of decay per unit time (symbol: and units: s1 or a1). As a result, as dP/P = dt , the number of parent nuclides P decreases over time t.
What is decay constant?A population of radioactive atoms' size and the rate at which they are vanishing due to radioactive decay are inversely correlated and are known as the decay constant. According to the equation dN/dt = N, where is the decay constant, the rate of change is determined by the size of a population of radioactive atoms at a given time t and the amount by which it decreases in time dt, denoted as N.
The size of the initial population of radioactive atoms at time t = 0 is represented by N0 in the equation's output, which is N = N0et after integration. This demonstrates that the population decrements exponentially and at a rate determined by the decay constant. A radioactive atom's half-life is the amount of time it takes for half of its initial population to decay.
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I WILL GIVE BRAINLEIST!! What are some challenges did Sunita williams (astronaut) faced throughout her life and career?
How do we need to prepare for the future?
a) To increase safety in energy plants?
b) To achieve sustainable development?
Select the option that describes the main limitation(s) for engineers in today society.
- international government regulations
- lack of educated team members
- technology is not able to keep up with the demand for innovative ideas
- money and safety
Answer:
its actually money and safety
Explanation:
Answer:
B
Explanation:
money and safety
(if the letter is different pick the one that says money and safety).
After adjusting your seat, your___ should be as closest possible to the back rest.
Answer:
ans would be back as back is the thing that needs rest by getting closest to seat
Technician A says that the Warranty Policy and Procedures Manual states any additional Repair
Order completed in conjunction with a normal PDS must have time punch/flags for service
Technician B says that if multiple additional repairs are made in conjunction with normal PDS, the
Warranty Policy and Procedures Manual indicates that separate time flags must be punched for
each repair.
Who is right?
Both Technician A and Technician B are correct in their statements.
Technician A is correct in stating that the Warranty Policy and Procedures Manual requires time punch/flags for any additional Repair Order completed in conjunction with a normal Pre-Delivery Service (PDS).
This means that if there are any extra repairs performed alongside the regular PDS, each repair must be recorded and flagged separately to track the time spent on them.
Technician B is also correct in mentioning that the Warranty Policy and Procedures Manual indicates the need for separate time flags for each repair when multiple additional repairs are made in conjunction with a normal PDS.
This reinforces the requirement for individual tracking of the time spent on each additional repair, ensuring accurate documentation and appropriate warranty coverage for each repair performed.
Therefore, both technicians are providing accurate information about the requirements outlined in the Warranty Policy and Procedures Manual regarding time punch/flags for additional repairs completed in conjunction with a normal PDS.
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Identify three questions a patient might ask of the nuclear medicine technologist performing a nuclear medicine exam.
Answer:
How long is my nuclear medicine exam?
How long will the radioactivity stay in my system?
What are the risks?
Explanation:
Answer:
How long is my nuclear medicine exam?
How long will the radioactivity stay in my system?
What are the risks?
Explanation: