Answer: Kristin is currently modifying a newly discovered plastic material to work on a new lightweight lacrosse stick.
Explanation:
The main function of a materials engineer is to develop, study and test materials that are used on order to make different products.
Material engineer solve problems in other engineering fields, like electrical, aerospace, civil, mechanical, chemical, and nuclear.
From the information given in the question, the correct option is "Kristin is currently modifying a newly discovered plastic material to work on a new lightweight lacrosse stick."
Answer:
nice
Explanation:
Help please!
Find two careers and explain why you would enjoy being in this career field.
Find two careers and explain why you would NOT enjoy being in this career field.
Note: You should have at least TWO paragraphs
Argue why electrode therapy is NOT the most effective treatment for brain disorders, and recommend an alternative treatment.
Answer:
Due to risk of damaging of brain.
Explanation:
The electrode therapy is not the most effective treatment for brain disorders because there are various other treatments which can treat the brain disorder without causing damage to the brain. electrode therapy greatly damaged the brain instead of treatment of brain disorder. Medication is the best way to treat brain disorder so that's why electrode therapy is not considered as the most effective treatment for brain disorders, and the doctors recommend an alternative treatment.
For a steel alloy it has been determined that a carburizing heat treatment of 11.3 h duration will raise the carbon concentration to 0.44 wt% at a point 1.8 mm from the surface. Estimate the time necessary to achieve the same concentration at a 4.9 mm position for an identical steel and at the same carburizing temperature.
This question is incomplete, the complete question is;
For a steel alloy it has been determined that a carburizing heat treatment of 11.3 h duration at Temperature T1 will raise the carbon concentration to 0.44 wt% at a point 1.8 mm from the surface. A separate experiment is performed at T2 that doubles the diffusion coefficient for carbon in steel.
Estimate the time necessary to achieve the same concentration at a 4.9 mm position for an identical steel and at the same carburizing temperature T2.
Answer:
the required time to achieve the same concentration at a 4.9 is 83.733 hrs
Explanation:
Given the data in the question;
treatment time t₁ = 11.3 hours
Carbon concentration = 0.444 wt%
thickness at surface x₁ = 1.8 mm = 0.0018 m
thickness at identical steel x₂ = 4.9 mm = 0.0049 m
Now, Using Fick's second law inform of diffusion
\(x^2\) / Dt = constant
where D is constant
then
\(x^2\) / t = constant
\(x^2_1\) / t₁ = \(x^2_2\) / t₂
\(x^2_1\) t₂ = t₁\(x^2_2\)
t₂ = t₁\(x^2_2\) / \(x^2_1\)
t₂ = (\(x^2_2\) / \(x^2_1\))t₁
t₂ = \((\) \(x_2\) / \(x_1\) \()^2\) × t₁
so we substitute
t₂ = \((\) 0.0049 / 0.0018 \()^2\) × 11.3 hrs
t₂ = 7.41 × 11.3 hrs
t₂ = 83.733 hrs
Therefore, the required time to achieve the same concentration at a 4.9 is 83.733 hrs
Which of these is the number of degrees of crankshaft rotation for which the valve is
lifted off the seat?
A. Duration
B. Lift
C. Overlap
D. Underlap
explain the relationship between the concrete compressive strength and its flexural strength and splitting tensile strength.
The relationship between the concrete compressive strength and its flexural strength and splitting tensile strength is that; these strengths are interrelated and their values are dependent on one another.
The compressive strength of concrete is defined as the maximum compressive load that can be applied on a test specimen, to fail in compression. It is expressed in MPa or psi. It is one of the most important properties of concrete and is essential in designing a structure because it defines the concrete’s ability to resist compressive stresses.
A flexural strength test is performed on concrete to determine the strength of concrete in resisting bending stresses. In other words, the test determines the ability of the concrete to withstand bending stresses without cracking. A flexural strength test is important in the design of structural elements like beams, slabs, and other such components that are subjected to bending forces.
The splitting tensile strength of concrete is determined by applying a load on a cylindrical or cubical test specimen of concrete. It is the ability of the concrete to withstand tensile forces that tend to split or rupture the test specimen. It is an important property of concrete because it defines the concrete’s ability to resist tension and shear forces.
The relationship between these three strengths of concrete is that they are interrelated and their values are dependent on one another. In general, the compressive strength of concrete is higher than its flexural strength and splitting tensile strength. However, flexural strength and splitting tensile strength are important in determining the overall strength of concrete, and they are used in the design of structural elements like beams, slabs, and other such components.
You can learn more about compressive strength at: brainly.com/question/15230572
#SPJ11
which of the following is not a performance technique developed by stanislavski? multiple choice through line biomechanics concentration and observation magic if
Through line biomechanics concentration and observation magic if International Society of Biomechanics in sports.
What is "International Society of Biomechanics in sports"?The recently developed professional association in biomechanics is the "International Society of Biomechanics in sports".It is the professional association in bio-mechanics.
It is an international society which is dedicated to bio-mechanics to sports. The main purpose of the society is to understand and study the human movement and its relation to sport bio-mechanics. They provide information regarding bio-mechanics in sports.
Therefore, Through line biomechanics concentration and observation magic if International Society of Biomechanics in sports.
Learn more about biomechanics on:
https://brainly.com/question/13898117
#SPJ1
a uniform electric field of magnitude is oriented along the positive y-axis. what is the magnitude of the flux of this field through a square of surface area oriented parallel to the yz-plane?
The magnitude of the flux of a uniform electric field of magnitude, oriented along the positive y-axis through a square of surface area oriented parallel to the yz-plane is zero.
This is because the electric field is parallel to the surface, and the dot product of two parallel vectors is zero.
A uniform electric field is a type of electric field in which the magnitude and direction of the field are the same at every point in space. This type of electric field is typically created by two parallel plates that have a fixed charge distribution and a constant distance between them. The magnitude of the electric field between these plates is uniform, which means that it has the same value at every point in the region between the plates.
Flux is a term used in physics to describe the flow of a vector field through a surface. The flux of a vector field is defined as the product of the magnitude of the field and the area of the surface that it passes through. In the case of electric fields, the flux is the amount of electric field that passes through a surface. Flux is typically measured in units of volts or tesla, depending on the type of field being measured.
In conclusion, the magnitude of the flux of a uniform electric field of magnitude, oriented along the positive y-axis through a square of surface area oriented parallel to the yz-plane is zero. The reason for this is that the electric field is parallel to the surface, and the dot product of two parallel vectors is zero.
To know more about the uniform electric field, click here;
https://brainly.com/question/31686665
#SPJ11
(3 points) One end of a 48 cm long copper rod with a diameter of 2.0 cm is kept at 360 ° C, and the other is immersed in water at 32° C. Calculate the heat conduction rate along the rod. The thermal conductivity for copper is 386 MK
Answer:
hi tommoro i have phisics exam i needd help only for 20 min how wants to help messege me instgram meeraalk99
Explanation:
please
what is the definition of uas in drone
UAS stands for Unmanned Aircraft System, which refers to a type of aircraft that is remotely controlled or flown autonomously without an onboard human pilot.
What are the UAS commonly known as?UAS are commonly known as drones and are often equipped with cameras, sensors, and other technologies for various applications such as aerial photography, surveying, monitoring, delivery, and more.
The term UAS encompasses the entire system, including the unmanned aerial vehicle (UAV), the ground control station, and any other components required for the operation of the aircraft. UAS are becoming increasingly popular and are used in a variety of industries and fields.
Read more about drones here:
https://brainly.com/question/24530012
#SPJ1
Consider a regenerative gas-turbine power plant with two stages of compression and two stages of expansion. The overall pressure ratio of the cycle is 9. The air enters each stage of the compressor at 300 K and each stage of the turbine at 1200 K. Accounting for the variation of specific heats with temperature, determine the minimum mass flow rate of air needed to develop a net power output of 105 MW.
Answer: the minimum mass flow rate of air required to generate a power output of 105 MW is 238.2 kg/s
Explanation:
from the T-S diagram, we get the overall pressure ratio of the cycle is 9
Calculate the pressure ratio in each stage of compression and expansion. P1/P2 = P4/P3 = √9 = 3
P5/P6 = P7/P8 = √9 =3
get the properties of air from, "TABLE A-17 Ideal-gas properties of air", in the text book.
At temperature T1 =300K
Specific enthalpy of air h1 = 300.19 kJ/kg
Relative pressure pr1 = 1.3860
At temperature T5 = 1200 K
Specific enthalpy h5 = 1277.79 kJ/kg
Relative pressure pr5 = 238
Calculate the relative pressure at state 2
Pr2 = (P2/P1) Pr5
Pr2 =3 x 1.3860 = 4.158
get the two values of relative pressure between which the relative pressure at state 2 lies and take the corresponding values of specific enthalpy from, "TABLE A-17 Ideal-gas properties of air", in the text book.
Relative pressure pr = 4.153
The corresponding specific enthalpy h = 411.12 kJ/kg
Relative pressure pr = 4.522
The corresponding specific enthalpy h = 421.26 kJ/kg
Find the specific enthalpy of state 2 by the method of interpolation
(h2 - 411.12) / ( 421.26 - 411.12) =
(4.158 - 4.153) / (4.522 - 4.153 )
h2 - 411.12 = (421.26 - 411.12) ((4.158 - 4.153) / (4.522 - 4.153))
h2 - 411.12 = 0.137
h2 = 411.257kJ/kg
Calculate the relative pressure at state 6.
Pr6 = (P6/P5) Pr5
Pr6 = 1/3 x 238 = 79.33
Obtain the two values of relative pressure between which the relative pressure at state 6 lies and take the corresponding values of specific enthalpy from, "TABLE A-17 Ideal-gas properties of air", in the text book.
Relative pressure Pr = 75.29
The corresponding specific enthalpy h = 932.93 kJ/kg
Relative pressure pr = 82.05
The corresponding specific enthalpy h = 955.38 kJ/kg
Find the specific enthalpy of state 6 by the method of interpolation.
(h6 - 932.93) / ( 955.38 - 932.93) =
(79.33 - 75.29) / ( 82.05 - 75.29 )
(h6 - 932.93) = ( 955.38 - 932.93) ((79.33 - 75.29) / ( 82.05 - 75.29 )
h6 - 932.93 = 13.427
h6 = 946.357 kJ/kg
Calculate the total work input of the first and second stage compressors
(Wcomp)in = 2(h2 - h1 ) = 2( 411.257 - 300.19 )
= 222.134 kJ/kg
Calculate the total work output of the first and second stage turbines.
(Wturb)out = 2(h5 - h6) = 2( 1277.79 - 946.357 )
= 662.866 kJ/kg
Calculate the net work done
Wnet = (Wturb)out - (Wcomp)in
= 662.866 - 222.134
= 440.732 kJ/kg
Calculate the minimum mass flow rate of air required to generate a power output of 105 MW
W = m × Wnet
(105 x 10³) kW = m(440.732 kJ/kg)
m = (105 x 10³) / 440.732
m = 238.2 kg/s
therefore the minimum mass flow rate of air required to generate a power output of 105 MW is 238.2 kg/s
Write an algorithm and flowchart that accepts two integers from the user and calculatethe product of the two integers.
Answer:
Algorithm
Step 1: Start
Step 2: Ask user to input two integers x and y
Step 3: Calculate the product of the two integers (product = x*y)
Step 4: Print the product
Step 5: End
Flowchart
[Start]
→ [Prompt User for x and y]
→ [Calculate product = x*y]
→ [Print product]
→ [End]
determine the forces in members bc and fg of the loaded symmetrical truss. show that this calculation can be accomplished by using one section and two equations, each of which contains only one of the two unknowns.
The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns.
What is Force?
A force is an effect that can alter an object's motion according to physics. A force can cause an object with mass to accelerate when it changes its velocity, for as when it moves away from rest. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction. It is calculated using the newton SI unit (N). Force is denoted by the letter F. (formerly P).
The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation.
The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns. By using the section, the force in member BC can be determined. By using the equation, the force in member FG can be determined.
To learn more about force
https://brainly.com/question/12970081
#SPJ4
what is most delicious fod in the philippines?
Answer:
Well there are a lot of delicious food in the philppines but my most favorite is the Lechon, Adobo, Sisig, Chicken Curry, Crispy pata and Sinigang
What does hydraulic force provide in a braking system?
Power
Heat dissipation
Contact surface
Pressure
Answer:
4 or D pressure
Explanation:
A hydraulic braking system transmits brake-pedal force to the wheel brakes through pressurized fluid, converting the fluid pressure into useful work of braking at the wheels.
Answer:
pressure is the correct answer...
Explanation:
mark me brainliest
Were you surprised by the “pie data”? Is it true for you, your family, and your friends? Why or why not?
this is a coding question, and pie data is a misprint. It is actulaly big data.
Answer:
No because it is something to gain knowledge of peoples lives.
Answer: i was not suprised because, it is something all people need to know to gai knowledege about it.
An engineer wants to design a knee replacement.Identify one criterion the design should meet.
You installed a new 40 gallon water heater with a 54,000 BTUh burner. The underground water temperature coming into the house is 55FHow long will it take to heat the water in the tank to a normal setting of 120F.Please show setup and calculations.
What type of social engineering targets particular?.
Social engineering is a technique used by cybercriminals to manipulate people into divulging their confidential data. Social engineers exploit the human psyche and their behavior to get access to sensitive information. Social engineering targets are specific, and they use various tactics to achieve their goals.
Several different types of social engineering attacks target specific groups of individuals. Below are some types of social engineering attacks.Phishing is a type of social engineering attack that is widely used by attackers. It is an attempt to trick the victim into clicking on a link that leads to a fraudulent website. The attacker can then steal the user's confidential data, such as login credentials, banking information, or personal data.Spear phishingSpear phishing is a more sophisticated type of social engineering attack. It is specifically designed to target particular individuals or groups. Spear phishing attempts to gain access to sensitive data through targeted emails, social media messages, or other communication channels. Attackers often use personal information or context-specific information to create a more convincing and personalized message.TailgatingTailgating is another type of social engineering attack that targets a particular individual or group. It occurs when a cybercriminal gains access to a restricted area by following someone who has authorized access. The attacker pretends to be an employee or a delivery person, and they wait outside the restricted area to follow an authorized employee as they enter the restricted area.BaitingBaiting is another type of social engineering attack that targets a particular individual. It occurs when an attacker leaves a physical device, such as a USB drive, in a public place, such as a parking lot or office building. The device is labeled with something like "Payroll Information," "Confidential," or another similar title. If the device is picked up and plugged into a computer, it can install malware onto the system. Malware can then be used to steal sensitive information. In conclusion, social engineering attacks use various tactics and techniques to target specific individuals or groups. These attacks can be difficult to detect, but by being aware of the types of social engineering attacks, individuals can better protect themselves from these types of attacks.
To know more about Social engineering visit:
https://brainly.com/question/31021547
#SPJ11
What is the purpose of a gusset or gusset plate used in the construction and repair of aircraft structures?
Answer:
To join and reinforce intersecting structural members
Explanation:
The purpose of a gusset or gusset plate used in the construction and repair of aircraft structures is to join and reinforce intersecting structural members
Consider a classroom for 56 students and one instructor, each generating heat at a rate of 100 W. Lighting is provided by 18 fluorescent lightbulbs, 40 W each, and the ballasts consume an additional 10 percent. Determine the rate of internal heat generation in this classroom when it is fully occupied. The rate of internal heat generation in this classroom when it is fully occupied is W.
Answer:
What is the probability of selecting the 4 of spade or black diamond from a deck of 52 playing cards?
a) 2/52
b) 4/52
c) 3/52
d) 1/5
Explanation:
a 6-in.-diameter concrete test cylinder is loaded with a compressive force of 113.1 kips, as shown. determine the stress in the cylinder.
The stress in a concrete test cylinder can be determined by calculating the compressive force acting on the cylinder and dividing it by the cross-sectional area of the cylinder.
The cross-sectional area of the 6-in.-diameter cylinder can be calculated as follows:
A = π * r^2
where r is the radius of the cylinder, given as r = 6 in. / 2 = 3 in.
A = π * 3^2 = 28.26 in.^2
The compressive force acting on the cylinder can be determined from the given value of 113.1 kips.
The stress in the cylinder can be calculated by dividing the compressive force by the cross-sectional area:
σ = F / A = 113.1 kips / 28.26 in.^2 = 4 ksi
This stress is the average normal stress acting on the cylinder. It represents the force per unit area acting on the cylinder due to the applied compressive load.
In conclusion, the stress in a concrete test cylinder can be determined by calculating the compressive force acting on the cylinder and dividing it by the cross-sectional area of the cylinder. In the case of the 6-in.-diameter cylinder loaded with 113.1 kips, the stress was calculated to be 4 ksi. This stress is the average normal stress acting on the cylinder.
To know more about compressive force: https://brainly.com/question/13777640
#SPJ4
A closed vessel of volume 80 litres contains 0.5 N of gas at a pressure of 150 kN/m2. If the gas is compressed isothermally to half its volume, determine the resulting pressure.
Answer:
The resulting pressure of the gas when its volume decreases is 300 kN/m².
Explanation:
Given;
initial volume of the gas, V₁ = 80 L
number of moles of the gas, n = 0.5 moles
initial pressure of the gas, P₁ = 150 kN/m² = 150 kPa
Determine the constant temperature of the gas using ideal gas equation;
PV = nRT
where;
R is ideal gas constant = 8.315 L.kPa/K.mol
T is the constant temperature
\(T = \frac{P_1V_1}{nR} \\\\T = \frac{150.kPa \ \times \ 80 .L}{0.5 .mol \ \times \ 8.315(L.kPa/mol.K)} \\\\T = 2,886.35 \ K\)
When the gas is compressed to half of its volume;
new volume of the gas, V₂ = ¹/₂ V₁
= ¹/₂ x 80L = 40 L
The new pressure, P₂ is calculated as;
\(P_2V_2 = nRT\\\\P_2 = \frac{nRT}{V_2} \\\\P_2 = \frac{0.5 \times 8.315\times 2886.35}{40} \\\\P_2 = 300 \ kPa = 300 \ kN/m^2\)
Therefore, the resulting pressure of the gas when its volume decreases is 300 kN/m².
A 500mm-long rod has a diameter of 25mm. If an axial tensile load of 50kN is applied to it,please answer the following questions:______.
(a) Will the material undergoyielding? Why or Why not?
(b) Can Hooke’s law be applied to this problem? (Assumethe proportionallimitstress is same with the Yield Strength of the material.)
(c) What is the longitudinalstrain?
(d) What is the lateral strain?
(e) What isthe change in its diameter? (PleaseuseYoung’smodulus E=200GPa, Shear Modulus (or Modulus of Rigidity) G=75.2GPa, and Yield StrengthσY=400????Pa)
Answer:
(a) Since, the stress is less than the yield strength. Therefore, the material does not go yielding.
(b) Yes
(c) Longitudinal Strain = 5.09 x 10⁻⁴
(d) Lateral Strain = 1.67 x 10⁻⁴
(e) Change in Diameter = 4.2 x 10⁻³ mm = 4.2 μm
Explanation:
(a)
First we calculate stress:
Stress = Force/Area = F/πr²
Stress = 50 KN/π(0.0125 m)²
Stress = 101.86 MPa
Since, the stress is less than the yield strength. Therefore, the material does not go yielding.
(b)
Yes, Hooke's law can be applied to this problem because the material is within elastic limits.
(c)
Longitudinal Strain = Stress/E
Longitudinal Strain = 0.10186 GPa/200 GPa
Longitudinal Strain = 5.09 x 10⁻⁴
(d)
Poisson's Ratio = Lateral Strain/Longitudinal Strain = E/2G - 1
Lateral Strain/Longitudinal Strain = E/2G - 1
Lateral Strain/5.09 x 10⁻⁴ = 200 GPa/2*75.2 GPa - 1
Lateral Strain = 0.33*5.09 x 10⁻⁴
Lateral Strain = 1.67 x 10⁻⁴
(e)
Lateral Strain = Change in Diameter/Original Diameter
Change in diameter = (1.67 x 10⁻⁴)(25 mm)
Change in Diameter = 4.2 x 10⁻³ mm = 4.2 μm
Question 1
(a) A conductor has a constant current of 2 A, how many electrons pass a fixed point on
the conductor in one 30 seconds?
(b) What is the total current of energy source supplying 40 C charge over 10 s? Given the
total energy of 1000 J as heat, compute the voltage drop across the terminal of the
energy source
(c) Calculate the equivalent resistance between points a and b of Figure 3. If the input
current at port ‘a’ is 2 A, what are the voltage supply and the total average power?
When using the superposition theorem, each ideal voltage and current source must be replaced by an open circuit.
true
false
Design the software architecture for a student online registration system using the MVC architecture. Draw the architecture by specifying the role of controller, view and model.
MVC architecture is defined as the architectural design that is used by software engineers for programming languages.
What are the various models of MVC architecture?The various types of MVC architecture include the following:
The controller: This model is used to control logic and acts as the coordinator between the View and the Model.The view: It displays the information from the model to the user.The model: It is used to implement the domain logic.Learn more about software here:
https://brainly.com/question/1538272
#SPJ1
which of the following is the most likely side effect of a high-protein, low-carbohydrate diet?
A. Diarrhea
B. Increased thirst
C. Nitrogen toxicity
D. Increased water retention in the body
E. Weight gain
The most likely side effect of a high-protein, low-carbohydrate diet is
D. Increased water retention in the body
Effects of high amounts of proteinWhen you consume high amounts of protein your body breaks it down into amino acids
During this process nitrogen is released as a waste product Excess nitrogen can be harmful to the body and the kidneys have to work harder to eliminate it.
However a high-protein diet is not likely to cause nitrogen toxicity as the body can handle moderate amounts of protein without any problems
Learn more about high-protein at
https://brainly.com/question/30821457
#SPJ1
As discussed in class, use your own words to compare the project fast-tracking and the project crashing!? Also, add a bar chart that describes A project of 4 activities then show how it might look under fast-tracking and under crash (you will need at least 3 bar charts for that)
Fast-tracking and project crashing are two project management techniques used to expedite the completion of a project.
While they share the goal of reducing project duration, they differ in their approach and impact on various project aspects.
Fast-tracking involves overlapping project activities that would typically be performed sequentially. This means that activities are initiated before their predecessors are fully completed. By compressing the project schedule, fast-tracking aims to reduce overall project duration and deliver results sooner. It often involves increased coordination and potential risks due to overlapping activities.
On the other hand, project crashing focuses on shortening the project duration by adding additional resources to critical activities. By assigning more resources or working overtime, the time required to complete critical activities is reduced. This technique aims to accelerate project completion while maintaining the original sequence of activities. However, crashing can lead to increased costs due to additional resources or overtime pay.
Learn more about fast-tracking aims :
https://brainly.com/question/29325577
#SPJ11
What is the difference between geomatics and land surveying
Land surveying is the era used to gather records additionally a part of geomatics. but geomatics is a technology to discover ways to analysis that survey geospatial facts through diverse approach and making out a selection via it.
Land Surveying (or Engineering Surveying) is in truth a sub-area of Geomatics. however, in practice, there may be little to no distinction between the disciplines and the phrases get used interchangeably often.
A Geomatics engineer will employ sensors, knowledge and software to provide notably correct positional information for any of these scenarios.
Surveyors make specific measurements to decide belongings boundaries. They provide information applicable to the form and contour of the Earth's floor for engineering, mapmaking, and creation initiatives.
To know more about land surveying click on right here
brainly.com/question/29841451
#SPJ4
The compound beam shown in figure is pin connected at B. Determine the components of reaction at its supports. Neglect its weight and thickness.
The values based on the information given will be Ra = 1000N and Rc= 90N
What is weight?Weight refers to the measure of the force of gravity on an object, and is typically measured in units of mass, such as kilograms or pounds. Weight is influenced by the mass of the object and the strength of the gravitational field it is in.
Thickness, on the other hand, refers to the measure of how thick an object is, or the distance between opposite surfaces of an object. Thickness is typically measured in units of length, such as millimeters or inches.
While weight and thickness are not directly related to each other, they can both play important roles in determining the properties and uses of an object. For example, a thin piece of metal may be lightweight, but may not be strong enough to support heavy loads. Conversely, a thicker piece of metal may be heavier, but may be able to support heavier loads due to its increased strength.
Learn more about thickness on
https://brainly.com/question/4937019
#SPJ1