The correct answer is option 'B', which states that the total horizontal stress, h, at a depth of 5 m is 0.5 kg/cm² and zero.
What are the values of total horizontal stress at a depth of 5 m?At a depth of 5 m, the total horizontal stress is composed of two components: the lithostatic stress and the pore pressure. The lithostatic stress is the vertical stress caused by the weight of the overlying rock or soil layers. In this case, the lithostatic stress at 5 m depth does not contribute to the total horizontal stress as it acts in the vertical direction. Therefore, it is zero.
The pore pressure is the pressure exerted by the water or other fluids within the pores of the soil or rock. At a depth of 5 m, the pore pressure contributes to the total horizontal stress. The option 'B' states that the value of the pore pressure at this depth is 0.5 kg/cm². Thus, the total horizontal stress at 5 m depth is 0.5 kg/cm².
To gain a deeper understanding of how total horizontal stress is determined, it is helpful to explore concepts such as effective stress, the principles of soil mechanics, and the factors influencing pore pressure. Understanding these factors can provide insights into the behavior of soil and rock masses under different loading conditions.
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the percieved cost of hiring a black worker for an employeer who is prejudiced
Perceived costs of hiring a black worker for a prejudiced employer may include biased assumptions, discrimination, and negative stereotypes.
When a prejudiced employer holds biases against black workers, their perceived costs of hiring may be influenced by these prejudices. They might harbor biased assumptions that black workers are less competent or qualified based on negative stereotypes. This perception can lead to discriminatory practices such as overlooking black candidates for job opportunities, denying them promotions or raises, or subjecting them to unequal treatment in the workplace.
These biased beliefs can create a hostile work environment, hinder teamwork and collaboration, and negatively impact productivity and morale. Additionally, there may be reputational costs for the employer as discriminatory practices can lead to public backlash and damage the company's brand image.
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here you can find my "english language" practice test. thanks in advance to solve that.
***Rewrite the sentences correct form of either infinitive or ing form without losing the meaning of the given sentences.
1) No matter how hard you tried, you will not convince Sarah. -Its no use Sarah.
2) The kids cant wait to go on holiday. (look forward to) -The kids on holiday.
3) He decided he would go on a business trip in september rather than in may. (choose) - He on a business trip in september.
4)They made me study hard when i was at university. I was at university.
5) I went to my local bank about getting a loan. (view) I went to my local bank a loan.
1) No matter how hard you try, Sarah will not be persuaded.
2) The kids are excited to go on vacation.
3. He opted to travel for business in September as opposed to May.
4) They pushed me work hard on my studies while I was in college.
5) I went to my neighbourhood bank to ask about obtaining a loan.
Note: Number 5's corrected sentence was puzzling. I assumed that asking about loans was the intended meaning. If you would like more information so that I can understand what you meant, please let me know.
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1. A thin-walled cylindrical pressure vessel is capped at the end and is subjected to an internal pressure (p). The inside diameter of the vessel is 6 ft and the wall thickness is 1.5 inch. The vessel is made of steel with tensile yield strength and compressive yield strength of 36 ksi. Determine the internal pressure required to initiate yielding according to (a) The maximum-shear-stress theory of failure, and (b) The maximum-distortion-energy theory of failure, if a factor of safety (FS) of 1.5 is desired.
A 13 kg rock sits on a spring with a spring constant of 23,000 N/m. The spring has a natural length of 1.2 meters.
a. If the spring is oriented horizontally, how much must the spring be compressed so that the rock will be traveling at 35 mph when it leaves contact with the spring?
b. If the spring is oriented vertically, how high will the rock get above the ground if the spring is compressed by 0.5 meters before the rock is released from a resting position?
c. If the rock is dropped vertically onto the spring (with the bottom of the spring on the ground) from a height of 14 meters above ground, how far will the spring compress before the rock stops moving? This is harder than it first appears and you should end up solving a quadratic equation.
a. To find the compression of the spring needed to launch the rock horizontally at 35 mph, we can use conservation of energy. The potential energy stored in the compressed spring is equal to the kinetic energy of the rock when it leaves the spring:
1/2 k x^2 = 1/2 m v^2
where k is the spring constant, x is the compression distance, m is the mass of the rock, and v is the velocity of the rock.
Converting the velocity to meters per second:
35 mph = 15.6 m/s
Plugging in the values and solving for x:
1/2 (23,000 N/m) x^2 = 1/2 (13 kg) (15.6 m/s)^2
x = sqrt[(13 kg) (15.6 m/s)^2 / (23,000 N/m)] = 0.263 m
Therefore, the spring must be compressed by 0.263 meters.
How high will the rock get above the ground if the spring is compressed by 0.5 meters before the rock is released from a resting position?b. To find the maximum height the rock will reach when the spring is oriented vertically, we can again use conservation of energy. The potential energy stored in the compressed spring is converted into gravitational potential energy of the rock when it leaves the spring:
1/2 k x^2 = m g h
where g is the acceleration due to gravity and h is the maximum height reached by the rock.
Plugging in the values and solving for h:
1/2 (23,000 N/m) (0.5 m)^2 = (13 kg) (9.8 m/s^2) h
h = (1/2) (23,000 N/m) (0.5 m)^2 / (13 kg) (9.8 m/s^2) = 0.605 m
Therefore, the rock will reach a height of 0.605 meters above the ground.
c. To find the compression distance when the rock is dropped onto the spring from a height of 14 meters, we need to consider both the potential energy of the rock and the energy absorbed by the spring. When the rock hits the spring, it will come to a stop, so all of its initial potential energy will be converted into potential energy stored in the compressed spring:
m g h = 1/2 k x^2
where h is the initial height of the rock and x is the compression distance of the spring.
Plugging in the values and solving for x, we get a quadratic equation:
1/2 (23,000 N/m) x^2 - (13 kg) (9.8 m/s^2) (14 m) = 0
Simplifying and solving for x using the quadratic formula:
x = sqrt[(13 kg) (9.8 m/s^2) (14 m) / (23,000 N/m)] = 0.473 m
Therefore, the spring will compress by 0.473 meters before the rock comes to a stop.
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a. To find the compression of the spring needed to launch the rock horizontally at 35 mph, we can use conservation of energy. The potential energy stored in the compressed spring is equal to the kinetic energy of the rock when it leaves the spring:
1/2 k x^2 = 1/2 m v^2
where k is the spring constant, x is the compression distance, m is the mass of the rock, and v is the velocity of the rock.
Converting the velocity to meters per second:
35 mph = 15.6 m/s
Plugging in the values and solving for x:
1/2 (23,000 N/m) x^2 = 1/2 (13 kg) (15.6 m/s)^2
x = sqrt[(13 kg) (15.6 m/s)^2 / (23,000 N/m)] = 0.263 m
Therefore, the spring must be compressed by 0.263 meters.
How high will the rock get above the ground if the spring is compressed by 0.5 meters before the rock is released from a resting position?b. To find the maximum height the rock will reach when the spring is oriented vertically, we can again use conservation of energy. The potential energy stored in the compressed spring is converted into gravitational potential energy of the rock when it leaves the spring:
1/2 k x^2 = m g h
where g is the acceleration due to gravity and h is the maximum height reached by the rock.
Plugging in the values and solving for h:
1/2 (23,000 N/m) (0.5 m)^2 = (13 kg) (9.8 m/s^2) h
h = (1/2) (23,000 N/m) (0.5 m)^2 / (13 kg) (9.8 m/s^2) = 0.605 m
Therefore, the rock will reach a height of 0.605 meters above the ground.
c. To find the compression distance when the rock is dropped onto the spring from a height of 14 meters, we need to consider both the potential energy of the rock and the energy absorbed by the spring. When the rock hits the spring, it will come to a stop, so all of its initial potential energy will be converted into potential energy stored in the compressed spring:
m g h = 1/2 k x^2
where h is the initial height of the rock and x is the compression distance of the spring.
Plugging in the values and solving for x, we get a quadratic equation:
1/2 (23,000 N/m) x^2 - (13 kg) (9.8 m/s^2) (14 m) = 0
Simplifying and solving for x using the quadratic formula:
x = sqrt[(13 kg) (9.8 m/s^2) (14 m) / (23,000 N/m)] = 0.473 m
Therefore, the spring will compress by 0.473 meters before the rock comes to a stop.
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The gcf method returns the greatest common factor of parameters a and b, as determined by case I and case II. Write the gcf method below. You are encouraged to implement this method recursively.
The use GCF method is correctly illustrated recursively below
What is GCF (Greatest common factor)The GCF is the greatest common factor that can be used to correctly divide two or more numbers without a reminder.
For example,
The parameters 20 and 30, to know the greatest common factor, write out each factors of 20 and 30
The factors of 20 = 1, 2, 4, 5, 10, and 20
The factors of 30 = 1, 2, 3, 5, 6, 10, 15, and 30
Therefore the GCF = 10
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If a circuit produces a phase shift of 45 degrees between the voltage and current curves and the apparent power is 100 VA, what is the TRUE power in the circuit?
50 W
70.7 VA
70.7 W
100 A
The true power is obtained as 70.7 VA.
What is the true power?We define the power a the rate of doing work, we know that the power in a circuit is the product of the current and the voltage. In this case, we want to find the true power thus we have to involve the use of the phase shift in degrees.
Thus;
True power = PcosΦ
P = 100 VA
Φ = 45 degrees
True power = 100 VA * cos 45 degrees
True power = 70.7 VA
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please help me make a lesson plan. the topic is Zigzag line. and heres the format.
A. Objective
B. Subject matter
C. Learning activities.
D. Assessment.
E. Reinforcement
Explanation:
D. B. C. A. E. Is this a good idea
Find the user-equilibrium traffic flow pattern over the network shown in the figure using
convex combinations (Frank-Wolfe) method.
The new flow on link 2 is 40.
How to solveTo find the user-equilibrium traffic flow pattern over the network shown in the figure using convex combinations (Frank-Wolfe) method, we can follow the following steps:
Explanation:
Step 1: Define the Network and OD Matrix
The first step is to define the network and origin-destination (OD) matrix. The network is shown in the given figure, and the OD matrix is:
From-To
Flow Units
1 -> 25
1 -> 25
3 -> 25
20
Explanation:
Step 2: Calculate Link Costs
The next step is to calculate the link costs using the link volume-delay function. The link volume-delay function is given by:
$t_{a}(x_{a}) = t_{a}^{0}{1 + 0.15(\frac{x_{a}}{c_{a}})^{4}}$
where $t_{a}^{0}$ is the free-flow travel time, $x_{a}$ is the flow on link $a$, and $c_{a}$ is the capacity of link $a$. Using the values given in the problem statement, we can calculate the link costs as follows:
Link
Capacity
Free Flow Time
Cost Function
1
3000
5
$5{1 + 0.15(\frac{x_{1}}{3000})^{4}}$
2
1500
6
$6{1 + 0.15(\frac{x_{2}}{1500})^{4}}$
3
2000
4
$4{1 + 0.15(\frac{x_{3}}{2000})^{4}}$
Step 2/2
Step 3: Find Shortest Path and Update Flow:
The next step is to find the shortest path for each OD pair using the link costs calculated in step 2.
We can use Dijkstra's algorithm to find the shortest path. Once we have the shortest path, we can update the flow on the links along the path by adding the flow units from the OD matrix.
Explanation:
For the first OD pair (1 -> 25), the shortest path is:
1 -> 2 -> 4 -> 25
Using the link costs calculated in step 2, we can calculate the travel time for each link along the path as follows:
$t_{1} = 5{1 + 0.15(\frac{x_{1}}{3000})^{4}} = 5{1 + 0.15(\frac{40}{3000})^{4}} \approx 5.2$
$t_{2} = 6{1 + 0.15(\frac{x_{2}}{1500})^{4}} = 6{1 + 0.15(\frac{40}{1500})^{4}} \approx 6.4$
$t_{4} = 4{1 + 0.15(\frac{x_{4}}{2000})^{4}} = 4{1 + 0.15(\frac{40}{2000})^{4}} \approx 4.3$
Final answer
Since link 2 is the only link along the path that has zero flow initially, we can add the entire flow units from the OD matrix to link 2.
Therefore, the new flow on link 2 is 40.
We can update the flow on links 1 and 4 to reflect the added flow on link 2.
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A sand deposit contains three distinct horizontal layers of equal thickness. The hydraulic conductivity of the upper and lower layers is 10-3 cm/sec and that of the middle is 10-2 cm/sec. What are the equivalent values of the horizontal and vertical hydraulic conductivities of the three layers, and What is their ratio?
Answer:
Kh/Kv = 2.8
Explanation:
The horizontal conductivity = K1H1+K2H2+K3H3/(H1+H2+H3)
= K1H+K2H+K3H/3H
= K1+K2+K3/3
= 10-3 cm/sec + 10-3 cm/sec + 10-2 cm/sec/3
= 4 * 10^-3 cm/s
Vertical conductivity
= H+H+H/(H/K1 +H/K2+H/K3)
= 3/(1/K1+1/K2+1/K3)
= 1/700 cm/s
Kh/Kv = 4 * 10^-3 cm/s/ 1/700 cm/s
Kh/Kv = 2.8
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 4 MPa in the boiler and 5 kPa in the condenser and a turbine inlet temperature of 700°C. The boiler is sized to provide a steam flow of 50 kg/s. Determine the power produced by the turbine and consumed by the pump. Use steam tables.
The pump work = v3.dP = 57.18 x 0.001 x ( 4000 - 20) =227.57 KW
How to solvehere At T1 = 700 C and P1 = 4 Mpa, from steam tabel : h1 =3906.41 KJ/Kg and s1 = 7.62 KJ/Kg.K
now s1 = s2 = 7.62 KJ/Kg.K as 1-2 is isentropic
so at P2 = 20 Kpa and s2 = 7.62 KJ/Kg.K , fom steam table : h2 = 2513.33 KJ/Kg
a) power produced by turbine = m.( h1 - h2) = 57.18 x ( 3906.41 - 2513.33) = 79656.15 KW
b) at P3 = 20 Kpa, 3 = vf = 0.001 m^3/kg
so pump work = v3.dP = 57.18 x 0.001 x ( 4000 - 20) =227.57 KW
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what type of plan shows the layout for portable toilets, dumpsters, and on-site parking areas be shown?
The type of plan that shows the layout for portable toilets, dumpsters, and on-site parking areas is called a site plan or a site map.
This type of plan includes details of the entire site, including the location and arrangement of all structures, equipment, and features such as landscaping, parking areas, and waste management facilities. Site plans are often required by local zoning and building regulations and may need to be approved by local authorities before construction or events can take place. The details provided in a site plan can help ensure that the site is safe, accessible, and functional for its intended use, while also minimizing potential impacts on neighboring properties and the environment.
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One of the electrical wiring design procedures is that in
cooperation with the _________________decide upon the point of
service entrance, type of service run, the service voltage,
metering location and building utilization voltage.
One of the electrical wiring design procedures is that in cooperation with the electrical utility company, the designers and builders decide upon the point of service entrance, type of service run, the service voltage, metering location, and building utilization voltage.
Electrical wiring design refers to the planning, constructing, and installation of electrical systems in buildings and structures. Electrical wiring design provides lighting, heating, and energy sources, as well as power to electrical equipment and devices in a structure. Electrical wiring design involves the creation of an electrical system that meets the specified requirements and complies with local and national electrical codes.The Electrical Utility CompanyAn electric utility company is a business that produces and distributes electrical energy. An electric utility company generates electricity and distributes it to consumers through a network of power lines. The electric utility company is responsible for providing power to buildings and structures. Designers and builders collaborate with electric utility companies to determine the best electrical system for a building or structure.The Service VoltageThe service voltage is the voltage supplied by the electrical utility company to a building or structure. The service voltage is a measure of the electrical potential difference between two points in an electrical circuit. The service voltage is typically 120 or 240 volts for residential buildings and can be up to 13,200 volts for commercial and industrial buildings.Metering Location The metering location is the location where the electrical utility company measures the amount of electricity used by a building or structure. The metering location is usually located near the point of service entrance. The metering location is critical for billing purposes, as the electric utility company uses the meter readings to determine the amount of electricity used by the building or structure.
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A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 12 MPa, 5608C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to the condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output for the cycle is 330 MW. For isentropic processes in the turbines and pumps.
Determine:
a. the cycle thermal efficiency.
b. the mass flow rate into the first turbine stage, in kg/s.
c. the rate of entropy production in the open feedwater heater, in kW/K.
Answer:
a) 0.489
b) 54.42 kg/s
c) 247.36 kW/s
Explanation:
Note that all the initial enthalpy and entropy values were gotten from the tables.
See the attachment for calculations
Consider the following code segment. What is the value of result after the code segment is executed? (WILL GIVE BRAINLIEST IF CORRECT)
A) 6
B) 10
C) 15
D) 21
Java program that demonstrates the use of repeat-until loop. Output image of the program is attached. Correct answer: option C (result = 15)
Java codeimport java.io.*;
public class Main {
public static void main(String args[]) {
// Define variables double result = 0;int x = 0;
// Data processingdo {
result = result+x;
x = x+1;
} while (x<=5);
// OutputSystem.out.println("Result = "+result);
}
}
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1. Lift swing arm restraints are to be used only by non-experienced
employees, because they will prevent the vehicle from falling.
O
True
False
What is the acceleration of a 0.8 kg vehicle powered by 0.07 N of force?
Using the Newton's second law of motion we will see that the acceleration is 0.0875 m/s^2.
What is the acceleration of the vehicle?The acceleration of a vehicle is determined by the force acting on it and its mass, as described by Newton's second law of motion:
F = m * a
where F is the force acting on the object, m is the mass of the object, and a is the resulting acceleration.
In this case, the force acting on the vehicle is 0.07 N, and the mass of the vehicle is 0.8 kg. Substituting these values into the equation above, we get:
0.07 N = 0.8 kg * a
Solving for a, we get:
a = 0.07 N / 0.8 kg
a = 0.0875 m/s^2
Therefore, the acceleration of the 0.8 kg vehicle powered by 0.07 N of force is 0.0875 m/s^2.
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A circular hoop sits in a stream of water, oriented perpendicular to the current. If the area of the hoop is doubled, the flux (volume of water per unit time) through it:___________
Answer:
The flux (volume of water per unit time) through the hoop will also double.
Explanation:
The flux = volume of water per unit time = flow rate of water through the hoop.
The Flow rate of water through the hoop is proportional to the area of the hoop, and the velocity of the water through the hoop.
This means that
Flow rate = AV
where A is the area of the hoop
V is the velocity of the water through the hoop
This flow rate = volume of water per unit time = Δv/Δt =Q
From all the above statements, we can say
Q = AV
From the equation, if we double the area, and the velocity of the stream of water through the hoop does not change, then, the volume of water per unit time will also double or we can say increases by a factor of 2
Ngaire was working on equipment that had been locked and tagged out. She was in a hurry and really tired)
so didn't check that stored energy had been safely released. She had all her PPE on so felt pretty safe as it
was only steam in the pipe.
A senior operator was supposed to do the job with her helping as she wasn't trained, but was called away
She had seen him do it before and wanted to help.
As she worked, steam burst out from a valve burning her left arm and narrowly missing her face. She ended
up with 2nd degree burns which became infected so she is off work for 5 weeks.
1. What were the hazard(s) and risk(s)?
Hazard:
Risk:
2. What was the worst thing that could have happened?
3. What Safety Rules should have been followed?
4. What Tools could have prevented this incident and HOW?
5. What would you have done differently?
6. What do you think is the most important thing that should have been done or
not done?
Hazard: Stored energy in the locked and tagged out equipment (steam in the pipe).
Risk: Failure to release stored energy leading to a sudden steam burst and resulting burns.
What is the worst thing to happen?The worst thing that could have happened is Ngaire sustaining more severe burns, potentially affecting her face or causing life-threatening injuries.
Safety Rules that should have been followed:
a. Always ensure stored energy is safely released before working on equipment.
b. Only perform tasks for which one is properly trained and authorized.
c. Do not rush or take shortcuts when it comes to safety procedures.
Tools that could have prevented this incident:
a. Lockout/tagout devices: These tools ensure that energy sources are isolated and equipment cannot be operated.
b. Verification checklist: A documented process to confirm that stored energy has been released before commencing work.
What could have been done differently:
Ngaire should not have attempted to work on the equipment without proper training and authorization. She should have waited for the senior operator or sought assistance from another trained individual.
The most important thing that should have been done:
Ngaire should have prioritized her safety and followed established procedures, including verifying that stored energy was safely released. Taking shortcuts or disregarding safety protocols can lead to serious incidents and injuries.
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which of the following fine motor skills could be seen in a 3-year-old, but not a 2-year-old? select all that apply.
Children begin to acquire fine motor skills at the age of three. They are better able to move their fingers on their own and use them for increasingly difficult tasks including holding writing instruments like an adult, using scissors, and creating intricate and detailed drawings.
Children as young as three can successfully perform the fine motor skill of drawing a circle. A five-year-old child's fine motor skills include tying shoelaces, cutting with scissors or a pencil extremely precisely, and drawing a human with several pieces. At this age, kids begin learning about numbers and counting. Speak to your youngster in lengthier than his own phrases that contain actual words to aid in the development of his language abilities. When he says something, repeat it, for instance, "need nana," and then demonstrate how to use more "grown-up" language by saying, "I need nana."
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Paste a screenshot and description of what is happening. does the electron in the receiving antenna move?
I'm sorry, but I cannot provide a screenshot without further context. However, I can explain the general concept of what happens in an antenna.
The basic idea behind an antenna is that it converts electrical signals into electromagnetic waves that can be transmitted through the air, and it can also convert incoming electromagnetic waves into electrical signals that can be interpreted by an electronic device.
The antenna works by using the movement of electrons in a conductive material to generate the electromagnetic waves. When a current flows through a wire or other conductor, it creates a magnetic field around the wire.
If the current is changing, the magnetic field will also change, and this change in the magnetic field will create an electric field that will propagate through space as an electromagnetic wave.
When an electromagnetic wave reaches an antenna, the electric field of the wave will cause the electrons in the antenna to move back and forth. This motion of the electrons generates a current in the antenna that can be used to drive an electronic circuit or to generate a signal that can be sent to another antenna.
the electrons in the receiving antenna do move in response to incoming electromagnetic waves.
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Bruce wants to present to his client in architectural drawing that shows the exact details of a living room kitchen bedroom and stairs in relation to other areas of the house which type of architectural drawings should Bruce use?
Answer:
section view in a general plan.
Explanation:
In Engineering, it is a standard and common practice to use drawings and models in the design and development of buildings, tools or systems that are being used for proffering solutions to specific problems in different fields such as banks, medicine, telecommunications and industries.
Hence, an architect or design engineer make use of drawings such as pictorial drawings, sketches, or architectural (technical) drawing to communicate ideas about a plan (design) to others, record and retain informations (ideas) so that they're not forgotten and analyze how different components of a plan (design) work together.
Architectural drawing is mainly implemented with computer-aided design (CAD) software and it's typically used in plans and blueprints that illustrates how to construct a building or an object.
Additionally, architectural drawings such as a section view in a general plan, show in detail how the areas of a building relate to each other, as well as accurately illustrating the actual (true) shape and size of a building in the design and development process.
In this scenario, Bruce wants to present to his client an architectural drawing that shows the exact details of a living room, kitchen, bedroom and stairs in relation to other areas of the house. Thus, the type of architectural drawings Bruce should use is a section view in a general plan.
A section view presents a vertical perspective or view by slicing through the building; revealing the exact details of wall construction, floor-to-floor construction, height and thickness of beam, and other support systems with respect to the living room, kitchen, bedroom, etc., in the building.
Question 1 (20 points): a. (10 points) Is it true that water boils at higher temperature at higher pressure? Explain your answer. b. (10 points) What is the difference between the critical point and the triple point?
a. This is because an increase in pressure raises the boiling point of a substance by increasing the energy required for its molecules to overcome the external pressure and change from a liquid to a gas state.
b. The critical point represents the highest temperature and pressure at which a substance can exist as a distinct liquid and gas phase. The triple point, on the other hand, is the temperature and pressure at which the three phases (solid, liquid, and gas) of a substance coexist in equilibrium.
a. When pressure is increased, it compresses the gas phase and makes it more difficult for molecules to escape into the gas phase. This increases the energy required for the liquid to overcome the external pressure and change into a gas. As a result, the boiling point of water increases at higher pressures. For example, at sea level (normal atmospheric pressure), water boils at 100 degrees Celsius. However, if the pressure is increased, such as in a pressure cooker, the boiling point can rise above 100 degrees Celsius.
b. The critical point of a substance is the temperature and pressure at which the distinction between the liquid and gas phases disappears. At this point, the substance exhibits unique properties and is in a supercritical fluid state. The triple point, on the other hand, is the temperature and pressure at which the three phases (solid, liquid, and gas) of a substance coexist in equilibrium. It is the only combination of temperature and pressure at which all three phases can exist together. The triple point is used as a reference point in thermodynamics to define the temperature scale.
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Crude oil at 20 c fills the space between two concentric cylinders 250 mm high and with diameters of 150 mm and 156 mm. Find the torque is required to rotate the inner cylinder at 12 r min, the outer cylinder rernaining stationary
the torque is required to rotate the inner cylinder at 12 r min, the outer cylinder remaining stationary is 11.0807 N-m.
we have left out some other important details, such as the time required to reach that rpm, whether the beginning state is at rest, and the axis around which the cylinder is revolving. However, we'll suppose that it will be 60 seconds (time is necessary to convert rpm to angular acceleration)
rotation around the center axis
Angular acceleration = torque + MOI
Currently, angular acceleration equals 2 rpm/(t 60).
In order to avoid getting an extremely high figure, we estimated that the diameter of the cylinder was 600 mm rather than 600 meters: angular acceleration= 1.047 rad/s² MOI for cylinder across center dia= 1/4MR²+ 1/12ML²
MOI= 10.5833 kg-m
Now, the product of these two is torque.
11.0807 N-m of torque
Various MOI equations can be used to compute for different axes of rotation.
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The complete question is:
Crude oil at 20 c fills the space between two concentric cylinders 250 mm high and with diameters of 150 mm and 156 mm. Find the torque is required to rotate the inner cylinder at 12 r min, the outer cylinder remaining stationary.
All of the following statements with respect to manual transmission are true EXCEPT: Group of answer choices gears can be applied only when the clutch is depressed. when in gear, releasing the clutch connects the engine to the transmission. releasing the clutch pedal closes the contacts of the clutch safety switch. the transmission provides the best pulling power in the lowest gear.
All of the following statements with respect to manual transmission are true EXCEPT releasing the clutch pedal closes the contacts of the clutch safety switch.
What is the transmission?Manual automobiles are useful due to the fact they normally value much less and are extra fuel-efficient. You can also see decreased upkeep prices and coverage prices. They additionally provide you higher management of the car for the reason that driver, now no longer the car, is in fee of converting gears.
With the pedal totally released, there's complete touch between the engine and the driveshaft, through the take hold of the plate, because of this the engine can observe energy immediately to the driveshaft. However, it's miles feasible to have the take hold of plate partly engaged, permitting the take hold of to slip.
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A particular brand of paint covers 340 square feet per gallon . Write a program in C++ to determine and report approximately how many gallons of paint will be needed to paint two coats on a wooden fence that is 6 feet high and 100 feet long .
Answer:
#include <iostream>
using namespace std;
// named constant to give mnemonic name to "magic number"
const float SqFtPerGal = 350.0f;
// the function main() is always the entry point of the application
int main()
{
float length, width, area, paint; // to hold user values and results
// prompt user for length and width of wall
cout << "Enter length of wall : " << flush;
cin >> length;
cout << "Enter width of wall : " << flush;
cin >> width;
// calculate area and amount of paint needed
area = length * width;
paint = area / SqFtPerGal;
// output results with reasonable text
cout << "You need " << paint << " gallons of paint to cover "
<< area << " square feet of wall." << endl;
// program stops executing when it returns from main(), 0 means O.K.
return 0;
}
Explanation:
Please propose a superstructure form of carpark (8-storey
height) with sound reasons.
A superstructure form of car park can be proposed in the form of a precast concrete construction. This method of construction utilizes standardized precast concrete elements that are assembled on-site in a prefabrication yard before being transported to the site for final erection and assembly.
Precast concrete construction is durable and can withstand harsh weather conditions, making it an ideal choice for a car park. It has the added benefit of being a sustainable construction method that generates minimal waste during construction, which contributes to environmental protection.
In terms of structural design, an 8-storey height superstructure form of car park can be designed using a post-tensioned beam and slab system. This system utilizes steel cables that are inserted into precast concrete beams and slabs to provide tension. This tension strengthens the structure and minimizes deflection. This construction method allows for a faster construction process while also providing a strong and durable structure that can withstand the heavy loads of vehicles.
In conclusion, a precast concrete construction with a post-tensioned beam and slab system can be proposed as a superstructure form of a car park with sound reasons. This construction method provides for a durable and sustainable structure that is resistant to harsh weather conditions, as well as a faster construction process. Additionally, incorporating adequate ventilation and lighting, as well as user convenience and safety, should be a top priority in the design process.
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Problem No. 2: Constant Pressure Filtration (8 pt)
A plate-and-frame press filter is used to filter an aqueous suspension, working under constant pressure of 4.0 bar, so that 300 L of filtrate are obtained after 45 min of filtration.
=> The actual filtration rate (dV/dt) at a time of 45 min is...
Problem No. 3: Constant Rate Filtration (8 pt)
Assuming the same filter as in Problem No.2 (with the same cake and filter medium) is used for filtration of an aqueous suspension, but desired for working at a constant filtration rate of 200 L/h.
=> What pressure drop (ΔP) would be attained after 45 min from the start ?
The actual filtration rate (dV/dt) for a time interval of 45 minutes is given by the formula: dV/dt = Q/A = (300 L / 45 min) / A = 6.67 L/min.
How is constant pressure filtration calculated?Constant rate filtration is described by the equation P = av c A 2 (V) d V d t + R m A d V d t. If the average specific resistance and dry cake mass per unit volume of filtrate are constant, i.e. for incompressible filtration, then Eq. (5) should be linear. In Eq. 1, the "filtration constants"
300 L of filtrate were collected after 45 minutes.
The following calculation can be used to calculate the actual filtration rate (dV/dt):
\(dV/dt = A * (dh/dt)\)
(dV/dt) = Q/A
where Q represents the filtrate's volumetric flow rate.
As a result, the real filtration rate (dV/dt) at 45 minutes is:
dV/dt = Q/A = (300 L / 45 min) / A = (6.67 L/min) / A
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light wood framing is highly combustible. how the building code addresses the combustibility of wood for light wood framing applications?
The building code addresses the combustibility of wood for light wood framing applications through various measures, such as:
1. Specifying the types of wood and wood products allowed for framing applications. Only those with suitable fire-resistant properties and performance are permitted.
2. Requiring the use of fire-resistant treatments or coatings for wood components to reduce their combustibility and slow the spread of fire.
3. Establishing minimum standards for the construction of fire-resistant walls, floors, and ceilings to compartmentalize and limit fire spread.
4. Mandating the installation of fire detection and suppression systems like smoke alarms and sprinklers to provide early warning and containment of fires.
5. Enforcing strict building codes for the placement and construction of wood-framed buildings, particularly in relation to other structures and potential fire hazards.
By following these regulations, the building code aims to mitigate the risks associated with the combustibility of wood in light wood framing applications and promote fire safety in construction.
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Two technicians are discussing hd-obd for trucks technician a says that the simplest most familiar definition is the diagnostic function of electronic control system to identify or self-diagnose system fault and report fault codes technician b says automotive and light duty truck versions of OBD is called OBD2 who is correct
Answer:
Two technicians are discussing HD-OBD for trucks
Technician a says that the simplest most familiar definition is the diagnostic function of electronic control system to identify or self-diagnose system fault and report fault codes.
Technician A is correct.
Explanation:
Onboard Diagnostics (OBD) is a vehicle's self-diagnostic tool which enables technicians to access the diagnostic information for the purpose of performance monitoring and analyzing repair needs of vehicles. OBD2 is the diagnostic system that is included in every vehicle made after 1996. The diagnostics can check the engine and other vehicle systems and also communicate possible vehicular glitches that happen.
A Frenkel defect is composed with which of the following? (a) A cation interstitial and a cation vacancy (b A cation interstitial and an anion interstitial (c) A catio (d) An anion interstitial and an anion vacancy
A Frenkel defect is composed with A cation interstitial and a cation vacancy.
What is a Frenkel defect composed of?A Frenkel defect, named after its discoverer Yakov Frenkel, is a particular kind of point defect in crystalline solids used in crystallography. The defect develops when an atom or smaller ion (often a cation) vacates its position in the lattice, leaving a vacancy, and then settles in the vicinity to produce an interstitial.
Ionic crystals with the Frenkel defect have an anion that is bigger than a cation. The solid crystal loses both the anion and the cation. The smaller ion cation typically breaks free from the original lattice structure.
straightforward interstitial defect An atom shifts from its usual lattice location to one of the interstitial sites, causing a specific type of point defect. In crystals with this flaw, the density of the crystal does not change. generally demonstrated by non-ionic solids.
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