Decreasing grain size typically increases both tensile strength and creep resistance.
When the grain size of a material is reduced, the number of grain boundaries increases. These grain boundaries act as barriers to the movement of dislocations within the material, which can result in increased strength. Additionally, a material with smaller grain size is less prone to creep deformation because the smaller grains limit the movement of atoms and therefore reduce the rate of creep.
Tensile strength: Smaller grains create more grain boundaries, which hinder the movement of dislocations (defects in the crystal structure). This results in higher tensile strength as it becomes more difficult for the material to deform under stress.
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Please help I need by today !!
What is the purpose of a portfolio?
Answer:
To document your work and projects.
Explanation:
I hope I got the right meaning. :)
4. a. A family purchased a 3 acre piece of land in Limuru for Kshs.30,000,000.00 fifteen years ago. They planted trees at a cost of Kshs.250,000.00 per acre. Each year they have been spending on average Kshs.25,000.00 per acre per month to take care of the trees and also to secure the property. They are now considering selling it. What is the minimum amount they should accept so as not to incur a loss bearing in mind that comparable properties have been yielding a rate of 6.5% interest per annum? (8 marks)
b. “Compulsory acquisition is the power of government to acquire private rights in land for public good without the willing consent of the owner but; in exchange for compensation”. Discuss this statement with special reference to the main considerations that ought to be made in conducting a valuation for compulsory acquisition. (12 marks)
The family should accept a minimum of Kshs.42,250,000.00 to avoid incurring a loss.
Why should they accept this amount and why?To obtain the total cost, the expenses for the land, trees and upkeep are summed up and subsequently reduced by 6. 5% using a discount rate.
Hence, it can be seen that a forced acquisition appraisal primarily focuses on three key factors: the land's market value, the expenses involved in replacing the property, and the potential harm caused to the owner's belongings.
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Where would an engineer indicate the unit of measurement used in a design
An engineer would indicate the unit of measurement used in a design in millimeters.
What are measurements?The primary unit of measurement is the stocking unit of measure for a given item in a specific organization. You must define an item attribute that serves as the primary unit of measurement when creating each item.
Because the technical drawings are scaled, engineers, architects, and builders may create the items according to exact specifications.
When understanding scales, the number on the left relates to the measurement of the drawing, while the number on the right represents the actual size of the object.
Therefore, a millimeter is used in a design.
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What do you think rail could do to move passengers with freight, like airlines do? How would you implement that?
Rail could implement dedicated passenger-freight trains and improve scheduling coordination between the two services.
To move passengers with freight, rail systems can adopt a few strategies similar to what airlines do. One approach is to establish dedicated passenger-freight trains that are specifically designed to accommodate both types of transportation. These trains would have separate compartments or sections for passengers and freight, allowing them to coexist efficiently. By allocating specific cars or areas of the train for passenger travel, rail companies can ensure a comfortable and convenient experience for passengers while still transporting freight.
Additionally, improving scheduling coordination between passenger and freight services is crucial. Rail companies can implement better planning and communication systems to optimize the flow of both passengers and freight. This involves designing timetables that minimize conflicts between passenger and freight trains, allowing for smooth operations and reducing delays. Enhanced coordination between the various rail operators, freight companies, and passenger service providers would be essential to ensure efficient movement and avoid conflicts in scheduling and routes.
Furthermore, infrastructure investments can play a significant role in facilitating the movement of passengers with freight. Expanding and upgrading rail networks to accommodate increased passenger and freight traffic is crucial. This may involve building additional tracks or dedicated rail lines specifically for passenger trains or establishing terminals that can handle both passenger and freight services effectively. Creating efficient intermodal connections between rail and other modes of transportation, such as airports or ports, can further enhance the seamless movement of passengers and freight.
In summary, rail systems can move passengers with freight by implementing dedicated trains, improving scheduling coordination, and investing in infrastructure. By considering the unique needs of both passenger and freight services and finding ways to integrate them effectively, rail companies can offer a more versatile and efficient transportation solution.
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Employees cannot be held legally responsible for an environmental violation.
Answer:
It does not take into consideration what the responsible party knew about the law or regulation they violated. Environmental criminal liability is triggered through some level of intent.
In regards to whether an employee can be held legally liable for environmental violations, this statement is False.
Environmental ViolationsThese are offences against existing environmental laws. Apply to those who commit it and those who willfully ignored the crime.This means that if an employee notices that a company is responsible for environmental violations, and does nothing about it, they could be held legally responsible for the violation as well.
In conclusion, this is true.
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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?
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:
\(\to V_A=V_C\\\\\to \pi D_A N_A=\pi D_C N_C\\\\\to D_C=\frac{D_A \times N_A}{N_C}\\\\\)
\(=\frac{1000 \times 18}{1850}\\\\=9.729 \ in \ \ \text{Diameter of pulley B}\)
determine the depth of flow in a 12-inch diameter concrete pipe with a channel slope of 0.0085 carrying 0.2 ft3 /s of water.
Answer:
it is not water
Consider the flow of mercury (a liquid metal) in a tube. How will the hydrodynamic and thermal entry lengths compare if the flow is laminar
Answer:
Explanation:
Considering the flow of mercury in a tube:
When it comes to laminar flow of mercury, the thermal entry length is quite smaller than the hydrodynamic entry length.
Also, the hydrodynamic and thermal entry lengths which is given as DLhRe05.0= for the case of laminar flow. It should be noted however, that Pr << 1 for liquid metals, and thus making the thermal entry length is smaller than the hydrodynamic entry length in laminar flow, like I'd stated in the previous paragraph
when you park next to a curb your wheels must be no more than
When you park next to a curb, your wheels must be no more than:
12 inches (30 centimeters) away from the curb for parallel parking in most states within the United States.What happens when you park next to a curbWhen parking next to a curb, it is important to position your vehicle in a way that allows for safe and efficient use of the road.
The distance between your wheels and the curb is regulated in order to ensure that parked vehicles do not obstruct traffic and allow for smooth movement of other vehicles on the road.
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The plastic block is subjected to an axial compressive force of 600600 N. Assuming that the caps at the top and bottom distribute the load uniformly throughout the block, determine the average normal and average shear stress acting along section a-aa−a .
The average normal acting along section a is 0.1 MPa
The average shear stress acting along section a is 0.052 MPa
How to solve for the normal and the shear stressWe have to solve for ∑fx from the image that we have
The angle here is sin 30 degrees
V - 600 sin 30 = 0
V = 600 * 0.5
= 300
Next we have to solve for ∑fy = N - 600cos 30 = 0
N = 600 * 0.8660
N = 520 N
We would have to solve for A from here using the value above
50 * 100 / cos 30
= 5773.67
σ = N / A
= 520 N / 5773.67
The average normal stress σ~ 0.1 MPa
t = V / A
= 300 / 5773.67
The shear stress = 0.052 MPa
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How many snaps points does an object have?
Answer:
what do you mean by that ? snap points ?
Consider a hypothetical material that has a grain diameter of 6.3 × 10−2 mm. After a heat treatment at 500 °C for 4 h, the grain diameter has increased to 1.10 × 10−1 mm. Compute the grain diameter when a specimen of this same original material (i.e., d0 = 6.3 × 10−2 mm) is heated for 5.5 h at 500°C. Assume the n grain diameter exponent has a value of 2.0
The time to achieve a grain diameter of 5.5 × 10⁻² mm is 477 minutes
What is the diameter?A straight line passes through the middle of a rounded object or shape and emerges at the opposing edge.
We have to calculate the K
Given that the grain diameter exponent (n) = 2.2
Grain diameter (d) = 5.6 × 10⁻² mm = 5.6 × 10⁻⁵ m
d₀ = 2.4 × 10⁻² mm = 5.6 × 10⁻⁵ m
t = 500 min
\(K = \dfrac{d^n - d^n\circ}{t} \\\\K = \dfrac{(5.6 \times 10^-^5)^{2.2} - (2.4 \times 10^-^5)^2}{500} \\\\K = 7.48\times 10^{-13} m/min\)
From K we can determine the time required based on the desired diameter grain diameter (d) = 5.5 × 10⁻² mm = 5.5 × 10⁻⁵ m
\(K = \dfrac{(5.6 \times 10^-^5)^{2.2} - (2.4 \times 10^-^5)^2}{7.8 \times 10^{-13}} \\\\K = 477 min.\)
Therefore, the time is 477 minutes.
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The coil of a relay takes a current of 0.12A when at room temperature of 15 ° C and connected to a 6V supply. If the minimum operating current of relay is 0.1A, calculte the temperature above which the relay will fail to operate when connected to the supply. Take temperature resistance of material as 0.0043/°C
Answer:
61.5 °C
Explanation:
The resistance of the relay coil at 15 °C is R = V/I = 6/0.12 = 50 ohms. In order for the coil current to remain above 0.10 A, the resistance must remain below R = 6/0.10 = 60 ohms.
At some temperature difference ΔT from 15 °C, the resistance of the coil will be ...
R = R0(1 +α·ΔT)
where R0 is the resistance at 15 °C, α is the temperature coefficient of resistance, and ΔT is the temperature change. We want to solve this for ΔT:
R/R0 = 1 +α·ΔT
(R/R0 -1)/α = ΔT = (60/50 -1)/0.0043 ≈ 46.5 . . . . °C
The relay may fail to operate at temperatures above (15 +46.5) °C = 61.5 °C.
You have been asked to predict the wave heights incident on the Fremantle railway bridge due to a wave train with offshore wave height of 1.15 m and period 14 s. The following information is given:
(a) refraction analysis indicate that the spacing between the orthogonals is one half the deep water spacing.
(b) water depth at the entrance to Fremantle harbour is 10m whilst at the Railway bridge it is 5 m.
(c) width of river at the ocean entrance is 600 m and at the railway bridge is 100 m, respectively.
The predicted wave height at the Fremantle railway bridge is 0.72 m.
Refraction analysis indicates that the wave height reduces as it enters shallow water, and the wave energy is concentrated perpendicular to the orthogonals. Given the water depth and width of the river at two locations, we can calculate the deep water wavelength, the spacing between orthogonals, and the angle of wave approach.
Then, using the linear wave theory, we can predict the wave height at the railway bridge. The half spacing between the orthogonals is 225 m, and the angle of wave approach is 14.7 degrees.
The predicted wave height at the railway bridge is calculated as 0.72 m, which is less than the offshore wave height of 1.15 m due to refraction and energy spreading over a larger area.
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How much land would a solar field take up to produce 1000 megawatts of power
It would need 32 acres of land to produce 1,000 megawatts of power.
Which of the following types of equipment are run by an operation in a rotating cab?
Answer:
Motor Vehicles, Mechanized Equipment, and Marine Operations ... These rules apply to the following types of earthmoving equipment: scrapers, loaders, ... which shall be operated as needed when the machine is moving in either direction
Which of the following will increase or decrease the quality of the digital signal?
a. Increasing the time between samples
b. Increasing the number of bits in each sample
c. Increasing the sampling frequency
Answer: decrease; increase; increase
Explanation:
Digital signals are simply referred to as time separated signals that can be generated when digital modulation is being used.
a. Increasing the time between samples
It should be noted that when there is increase in the time between samples, the accuracy of the digital signal becomes more defined. In order for the time between sample to be increased, the quality of the digital signal will have to be reduced.
b. Increasing the number of bits in each sample
There's increase in the level of quantization as the number of bits in every sample rises. The increase in the level of quantization reduces the noise which in turn, leads to a rise in the signal quality.
Therefore, increasing the number of bits in each sample increase the quality of the digital signals.
c. Increasing the sampling frequency.
There's reduction in time interval between the samples as the sampling frequency rises. Therefore, the increase in the sampling frequency increase the quality of the digital signals.
NEED ASAP WILL GIVE BRAINLIEST IF RIGHT
Read the following claim.
Tiera Fletcher's parents supported their daughter in her endeavors.
How would Tiera Fletcher MOST likely respond to this claim?
(A) She would agree but also point to occasions where they were a little too strict and forced her to take
certain classes.
(B) She would agree and say they supported her interests and did a lot to ensure she got into special
science programs.
(C) She would disagree but also point to some instances where they attempted to show some curiosity
about her career.
(D) She would disagree and say that they were actively trying to get her to choose another field of study
other than engineering.
Answer:
(C) She would disagree but also point to some instances where they attempted to show some curiosity about her career.
Question Is in the image provided
The two ways through which a computer model is likely to be used by an engineer in order to help refine a design are as follows:
Calculating the possible costs of building a design.Running simulations to test a problem with the design.Thus, the correct options for this question are A and D.
What do you mean by Computer model?A Computer model may be defined as a type of computer program that significantly runs on a computer that typically develops a model, or simulation, of a real-world feature, phenomenon, or any other event.
According to the context of this question, an engineer would try to perform the ways in order to support the refining of the design through the help of calculating the possible costs of building a design and the run simulations to test a problem with the design.
Therefore, the correct options for this question are A and D.
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The fraction of nonreflected radiation that is transmitted through a 10-mm thickness of a transparent material is 0.90. If the thickness is increased to 32 mm, what fraction of light will be transmitted
The fraction of light that will be transmitted through a 32 mm thickness of the transparent material is approximately 0.59049 or 59.049%.
What fraction of light will be transmitted through a 32 mm thickness of a transparent material?To determine the fraction of light that will be transmitted through a 32 mm thickness of the transparent material, we need to use the information provided.
Let's assume that the fraction of nonreflected radiation transmitted through a 10 mm thickness is 0.90. This means that 90% of the incident light is transmitted through the 10 mm thickness.
Now, we need to find the fraction of light transmitted through the 32 mm thickness. To do this, we can assume that the fraction of transmitted light remains constant throughout the material.
Since 90% of the light is transmitted through 10 mm, we can say that 90% of the transmitted light will be transmitted through the next 10 mm as well.
This means that 90% of 90% (or 0.90) will be transmitted through the second 10 mm, which is 0.90 ˣ 0.90 = 0.81.
Similarly, 90% of 0.81 will be transmitted through the next 10 mm, which is 0.90 ˣ 0.81 = 0.729.
Continuing this pattern, 90% of 0.729 will be transmitted through the next 10 mm, which is 0.90 ˣ 0.729 = 0.6561.
Finally, 90% of 0.6561 will be transmitted through the last 2 mm, which is 0.90 ˣ 0.6561 = 0.59049.
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why do kitchen cabinets bathtubs and attic openings require special framing details
consider the following circuit what is the low pass cutoff frequency? group of answer choices 6.28 khz 15.9 khz 100 khz 628 khz
Here, the student is asked to consider the following circuit and determine the low pass cutoff frequency:Based on the circuit diagram, we can see that this is a simple RC low pass filter.
The cutoff frequency of an RC low pass filter is given by the formula\(:$$f_c=\frac{1}{2\pi RC}$$\)where R is the resistance in ohms, C is the capacitance in farads, and fc is the cutoff frequency in hertz.Using the values given in the circuit diagram, we have:R = 10 kΩC = 2.5 nFSubstituting these values into the formula above, we get:\($$f_c=\frac{1}{2\pi (10\ \text{kΩ})(2.5\ \text{nF})}=6.366\)\(\\text{kHz}$$\)Therefore, the low pass cutoff frequency of this circuit is 6.366 kHz (to three significant figures).Thus, the answer is 6.28 kHz.For such more question on resistance
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Compare automation and autonomous
Answer:
Automation generally means “a process performed without human assistance”, while autonomy implies “satisfactory performance under significant uncertainties in the environment and the ability to compensate for system failures without external intervention [emphasis mine].”
Explanation:
True of false: Oscar Vasquez tells his mom the truth about being able to enlist
It is TRUE to state that Oscar Vasquez, the protagonist in the book "Oscar Vasquez," tells his mom the truth about being able to enlist.
What is the central idea of the book?The central idea of the book "Oscar Vasquez" revolves around the challenges and triumphs of Oscar Vasquez, an undocumented immigrant who overcomes obstacles to pursue his dream of enlisting in the U.S. Army and fighting for his country.
The key concept is the tale's central, unifying theme, which connects all of the other parts of fiction employed by the author to create the story. The primary notion is best defined as the story's prevailing impression or the universal, general truth.
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How many moles of water (H2O) are formed if you start with 2 moles of. Copper II oxide (CuO)
Answer:
Explanation:
The balanced chemical equation for the reaction between copper(II) oxide (CuO) and hydrogen gas (H2) to form water (H2O) and copper (Cu) is:
CuO + H2 → H2O + Cu
From the equation, we can see that 1 mole of CuO reacts with 1 mole of H2 to form 1 mole of H2O.
Therefore, if we start with 2 moles of CuO, we would need 2 moles of H2 to react completely and form 2 moles of H2O.
CuO + 2H2 → 2H2O + Cu
So, 2 moles of CuO would form 2 moles of H2O.
3 4/5÷2/5 as a fraction
Answer:
9 1/2
Explanation:
3 4/5 is 3.8
2/5 is 0.4
divide 3.8 by 0.4 you get 9.5 which is 9 1/2 in a fraction
Describe the main component in an electronic control unit (ECU) used in an automobile. Indicate the function of each ingredient.
to operate a vehicle safely, drivers must know how to operate all of their vehicle controls.True or False
True. In order to operate a vehicle safely, it is essential for drivers to know how to operate all of their vehicle controls.
This includes knowing how to use the steering wheel, accelerator, brakes, turn signals, headlights, windshield wipers, and any other controls that may be present in the vehicle. Without a thorough understanding of these controls, a driver may be unable to react quickly or effectively in an emergency situation, potentially leading to an accident or injury. Therefore, it is important for all drivers to be familiar with their vehicle controls and to know how to use them properly.
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The point at 0°, 0° is
can you give me a paragraph on What is Electrical Engineering and why is it considered the largest branch of Engineering? I really need help.