An implement used to press out blackheads is commonly known as a comedone extractor. It is a small, metal tool with two loops on either end that is designed to gently and hygienically remove blackheads and other impurities from the skin.
To use the comedone extractor, first clean and steam the skin to soften and open the pores. Then, place the loop over the blackhead and gently apply pressure to extract it. It is important to be gentle and avoid pushing too hard to prevent damaging the skin. After use, clean the comedone extractor with alcohol or disinfectant to prevent the spread of bacteria. It is important to note that while comedone extractors can be effective for removing blackheads, they should only be used by professionals or individuals who have been trained on how to use them properly to avoid skin damage or infection.
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Need help fast 50 points Project: Creating a Morphological Matrix
Assignment Directions
A systematic way to view common functionality of an object's structure and components is through a morphological matrix. You are going to utilize this method to analyze a common household device (from the list below or your own idea). First, create the left-hand column by deciding on the parameters that allow the object to function normally. For example, a pencil sharpener has a blade and a housing unit to support the system. Use the parameters to describe the system. If the pencil sharpener is hand operated, list the parameter of hand turning (either the pencil itself in a small unit or a handle in a wall-mounted device). The parameter column can include specific structures in the device, power sources, or any other information you learned in the lesson. The right-hand columns will include the current methods used by the device to complete the parameter, as well as any other options that would satisfy the parameter. You must create at least two other options for each parameter.
While the matrix provides valuable information for an engineer, it is typically more technological than a client or decision team needs. Therefore, you will also need to complete a one- or two-page analysis of the device, including the current parameter solutions and any recommended alterations to a design. Each recommendation must be supported by information in the morphological matrix.
Here are some ideas of household devices that you can analyze:
can opener
bathroom or kitchen scale
doorknob assembly
stapler
Assignment Guidelines
a completed morphological matrix
each parameter must have at least three solutions
a written analysis of the device with supporting details from the matrix
Submission Requirements
One to two pages double spaced
Proper grammar and vocabulary is required.
Answer:
The fundamental difference between effective and less effective matrix organizations is whether the tension between different perspectives is creative or destructive. While various processes, systems and tools can help, what matters most is what top leadership says and does and how that flows through the organization in shared targets, clear accountabilities, live team interactions and team-building transparency and behaviors.
Getting matrix management right is linked inextricably to an organization’s culture - the only sustainable competitive advantage. Key components of a culture can be grouped into behaviors, relationships, attitudes, values and the environment.
Environment and values: Each organization has its own environment, context and bedrock values. Everyone needs to know what matters and why. Don’t try to do anything else until you’ve got that set.
Attitude is about choices: An organization’s overall strategy drives choices about which of its parts will be best in class (superior), world class (parity), strong (above average), or simplified/outsourced to be good enough. These choices help determine the need for a matrix and how best to design it.
Relationships and behaviors: This is why organizations have matrices. The most effective of them best balance focus and collaboration. They allow leaders and teams to build differential strengths and then work together to make the best possible decisions and scale enterprises with a creative tension that they could not do on their own.
My colleague Joe Durrett has worked all sides of matrix organizations in marketing at Procter & Gamble, sales and general management at Kraft General Foods and CEO of Information Resources, Broderbund Software and Advo. He has seen matrices at their best and at their worst and offered his perspective for this article along with his partners John Lawler and Linda Hlavac. The 12 ways to make matrix organizations more effective were built on their ideas.
Explanation:
Which of the following is a solution of the differential equation xy ' + y = 4x.
A. y = 4x - 2x⁻¹
B. y = 4x⁻¹ - 2x
C. y = 2x - 2x⁻¹
D. y = 2x⁻¹ - 2x
E. y = 4x + 2x⁻¹
The correct solution of the given differential equation xy' + y = 4x is E. y = 4x + 2x⁻¹.
In mathematics, a differential equation is an equation that relates one or more unknown functions and their derivatives. In applications, the functions generally represent physical quantities, the derivatives represent their rates of change, and the differential equation defines a relationship between the two
To verify the solution, let's substitute y = 4x + 2x⁻¹ into the differential equation:
xy' + y = x(4 - 2x⁻²) + (4x + 2x⁻¹)
= 4x - 2x⁻¹ + 4x + 2x⁻¹
= 8x
As we can see, when we substitute the solution back into the differential equation, both sides are equal. Therefore, option E is the correct solution to the given differential equation.
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Which of the following would satisfy the 30-minute break required under the interruption of driving provisions
The 30-minute consecutive break could be satisfied by taking 30 consecutive minutes off duty/on duty without driving.
What is the 30-minute rule?The 30-Minute Break Rule refers that a driver having a window of 8 hours to drive after their last off-duty period of at least 30 minutes. In the old rule, once a driver went on duty in a day, the driver had to take a 30-minute break by the 8th hour before being allowed to drive again.
This rule also implies spending 30 consecutive minutes in the sleeper berth. A combination of both equals 30 consecutive minutes. Drivers must take a 30-minute break when they have driven for a period of 8 cumulative hours without at least a 30-minute interruption.
Therefore, the 30-minute consecutive break could be satisfied by taking 30 consecutive minutes off duty/on duty without driving.
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Your question seems incomplete. The most probable complete question is as follows:
Which of the following would satisfy the 30-minute break required under the interruption of driving provisions:
taking 30 consecutive minutes off duty/on duty without driving.taking 30 consecutive minutes off duty/on duty with driving.taking more than 30 minutes off duty/on duty without driving.taking less than 30 minutes off duty/on duty without driving.how would the discharge of the river change if its channel depth decreased to 1ft, its width stayed at 10ft, and its flow velocity increased to 9 ft/sec? justify your answer.
The new discharge may remain roughly the same or could even increase slightly, depending on the exact values of width, depth, and velocity.
The discharge of a river is the volume of water that passes through a given cross-section of the river per unit of time. It is calculated as the product of the cross-sectional area of the river channel (width times depth) and the flow velocity.
Discharge (Q) = Width (W) × Depth (D) × Velocity (V)
Given the following changes:
Channel depth (D) decreased to 1 ft
Width (W) stayed at 10 ft
Flow velocity (V) increased to 9 ft/sec
The new discharge (Q') can be calculated as:
Q' = W × D' × V'
Where D' is the new channel depth of 1 ft, and V' is the new flow velocity of 9 ft/sec.
An incompressible fluid, like the water in a river, has a constant mass flow rate along a streamline according to the fluid mechanics principle of continuity. This means that, in the absence of external forces, the product of the cross-sectional area and the flow velocity is constant. Here, we make the assumption that the river is in a stable state and that no outside factors are changing its flow.
When the channel depth (D) decreases to 1 ft, but the width (W) stays the same at 10 ft, the cross-sectional area (W × D') of the river decreases. However, the flow velocity (V') increases to 9 ft/sec.
As a result, if the continuity principle is valid, the decline in channel depth is balanced by the rise in flow velocity. This indicates that depending on the precise values of breadth, depth, and velocity, the new discharge (Q') may either stay nearly the same or perhaps significantly rise.
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Why become an Android programmer?
One pound of air in a cylinder-piston arrangement undergoes an adiabatic expansion from 200 psia to 50 psia. The initial volume is 4 ft3/lbm. The process is such that PV1.4 is constant. Find the work done and the change in internal energy and temperature of the gas.
When air undergoes adiabatic expansion, the process is governed by the equation PV^γ = constant, where γ is the ratio of specific heats. In this case, the value of γ for air is 1.4. We are given that one pound of air undergoes an adiabatic expansion from 200 psia to 50 psia, with an initial volume of 4 ft3/lbm and PV^1.4 = constant.
Let's calculate the final volume of the air using the initial and final pressures and the initial volume. Using the formula P1V1^γ = P2V2^γ and substituting the given values, we have: 200(4)^1.4 = 50(V2)^1.4V2 = (200(4)^1.4 / 50)^(1/1.4)V2 = 11.14 ft^3/lbmThe work done by the air is given by the equation W = ∆E + Q, where ∆E is the change in internal energy and Q is the heat added to or removed from the system. Since the process is adiabatic (Q = 0), the work done is equal to the change in internal energy. Let's calculate the work done:W = ∆E = C_v (T2 - T1)where C_v is the specific heat at constant volume, and T1 and T2 are the initial and final temperatures, respectively. The specific heat at constant volume for air is 0.1715 Btu/lbm·R. Let's calculate the final temperature of the air using the initial and final pressures and volumes and the equation P1V1^γ/T1 = P2V2^γ/T2.200(4)^1.4/T1 = 50(11.14)^1.4/T2T2 = T1 * (P2V2^γ / P1V1^γ)T2 = 1183.3 RLet's substitute the values into the equation for work done to get:W = C_v (T2 - T1)W = 0.1715 Btu/lbm·R (1183.3 R - 527.7 R)W = 0.1715 Btu/lbm·R (655.6 R)W = 112.3 Btu/lbmThe change in internal energy is also 112.3 Btu/lbm, since Q = 0. The change in temperature is T2 - T1 = 1183.3 R - 527.7 R = 655.6 R.Answer: The work done by the air is 112.3 Btu/lbm, and the change in internal energy and temperature of the gas are also 112.3 Btu/lbm and 655.6 R, respectively.
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Which of the following is NOT a line used on blueprints?
Answer: Photo lines
Explanation: made more sense
What is a maintenance sheet?
An o ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with
An o ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with a blue stripe or dot.
a combined cycle power plant has a total net power output of 352 mw. air enters the compressor of the brayton cycle at 100 kpa and 300 k, where it is compressed to 2060 kpa with a compressor that has an efficiency of 89%. the air is burned with methane, which enters at 298 k, in an adiabatic combustor and the temperature exiting the combustor is 1680 k. the product gases exiting the combustor enter the turbine, where they are expanded back to 100 kpa with a turbine efficiency of 91%. the product gases then pass through the hrsg, where they are used to provide heat to the boiler of the rankine cycle. the product gases exit the hrsg at 360 k. For the Rankine cycle, the steam is heated to6MPa and 600 ∘C in the boiler, the isentropic efficiency of the turbine is 88%, the condenser pressure is 10kPa and the pump efficiency is 72%. Determine: 1. The temperature of the air after compression, in K. 2. The equivalence ratio in the combustor. 3. The mass fractions of the product gas mixture leaving the combustor. 4. The average specific heat capacity of the product gas mixture. 5. The average ratio of specific heats of the product gas mixture.
The exhaust gases from the hrsg leave at 360 k. The steam is heated to 6 MPa and 600 C in the boiler for the Rankine cycle, and the turbine's isentropic efficiency is 88%. The condenser pressure is 10 kPa, and the pump efficiency is 72%. Find the product gas mixture's average specific heat to volume ratio.
The ratio of a transistor's collector and emitter currents, or alpha factor (), is always less than one (between 0.5 and 1). The ratio of its collector and base currents, known as the beta () or current gain ( = Ic/Ib), is always greater than 1. The factor is alternatively calculated using the formula = /(+1) When two ratios are equivalent, a proportion is present as well. In mathematics, a ratio shows how frequently one number appears in another. For instance, the proportion of oranges to lemons in a dish of fruit would be eight to six.
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What is the importance of food handling machines in food industry (Explain in points).
Answer:
Explanation:
Profile photo for Rosie Milojevic
Rosie Milojevic, Business Development at iComplied
Answered 3 years ago
For those who run or work in a business that handles food, you understand the importance of food safety and regulation compliance as it pertains to not only to certification and licensing of a company, but also the life or death of those who consume the products. Because food safety is such an important issue, we want to ensure that all companies who work in the production, preparation, or processing of food have the tools and information they need to ensure they are in full compliance 100% of the time. One slip in food safety compliance could cost someone their health or life, and this information spreads mistrust in the general public toward the company who sold the product, and also the entire product across companies throughout an entire country and beyond. So how does each company working with food ensure they comply with each and every food safety regulation? Through excellent auditing tools.
Auditing in Food Safety Must Change
Auditing in food safety compliance is essential in ensuring that all regulations are being complied with. Most auditing practices for major companies are severely out of date. Many rely on several different forms, stacks of paperwork, and data stored on multiple different computers and databases. This is incredibly inefficient, as it can be easy to miss something when comparing one sheet to the next, and paper can easily be lost or destroyed. It is also time consuming for companies to share audits over separate computers and databases, as it must be passed down from one employee to the next. Technology has granted all food safety compliance managers a simple solution. Auditing apps are the new wave solutions for companies who want all of their data stored on one cloud database that is instantly accessible with real-time data for all employees. This means that no one ever gets left out of the loop, and no new information will fall through the cracks.
Per ASME Boiler and Pressure Code, what is the ruling regarding the requirement of a water column on all boilers?
According to ASME Boiler and Pressure Code, water columns are required on all steam boilers.
The purpose of a water column is to provide a visual indication of the water level in the boiler. This is important because if the water level in the boiler gets too low, it can cause damage to the boiler and be a safety hazard.
The ASME Boiler and Pressure Code sets safety standards for boilers and pressure vessels, and it requires water columns to be installed on all steam boilers. The water column typically consists of a vertical pipe with a valve at the bottom and a glass sight gauge at the top, which allows the operator to visually check the water level.
Additionally, some states and municipalities may have their own regulations regarding water columns and boiler safety, so it's important to be familiar with the relevant codes and standards in your area.
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2. Discuss the reengineering process in your own words and provide an example.
Reengineering is the process of redesigning and improving business processes to achieve significant performance improvements. It involves challenging traditional methods and leveraging technology for transformative change.
Reengineering is the process of fundamentally redesigning and improving business processes to achieve significant improvements in performance, efficiency, and effectiveness. It involves a holistic approach that rethinks and restructures existing processes, often leveraging technology and innovation to drive transformative change. Reengineering aims to break away from traditional ways of operating and create new, streamlined processes that align with organizational goals and deliver value to customers.
Example: One example of reengineering is the transformation of a traditional paper-based invoicing process into an automated electronic invoicing system. In the traditional process, invoices would be generated manually, printed, and sent through the mail, resulting in delays, errors, and inefficiencies. Through reengineering, the process can be redesigned to leverage electronic invoicing software, where invoices are generated electronically, sent via email or a digital platform, and seamlessly integrated with the organization's accounting systems. This reengineering effort eliminates manual steps, reduces processing time, improves accuracy, and enhances customer satisfaction through faster invoice delivery and streamlined payment processes. The focus is on reimagining the entire invoicing process, identifying pain points, and implementing technological solutions to drive efficiency and effectiveness.
Reengineering projects can vary in scope and scale, but they all involve a critical examination of existing processes, identifying bottlenecks, and finding innovative ways to streamline operations. The goal is to achieve radical improvements in performance and outcomes by challenging traditional assumptions and embracing new approaches to work.
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A contractor excavates 10,000 m3 soil at moist unit weight of 17.5 kN/m3 and moisture content of 10% from a borrow pit and transports it to a project site. The project has an area of 20,000 m2 to be filled with this compacted soil. If the required dry unit weight and moisture content of the compacted soil are 18.3 kN/m3 and 12.5% (assume there is no soil loss during transportation and compaction), what is the thickness of the compacted soil and how much water needs to be added?
Answer:
Part A
The thickness of the compacted soil is approximately 4.3467 × 10⁻¹ m
Part B
The weight of water to be added is approximately 19886.\(\overline{36}\) kN, the volume of the water added is approximately 2,027.77 m³
Explanation:
The parameters of the soil are;
The volume of sol the excavator excavates, \(V_T\) = 10,000 m³
The moist unit weight, W = 17.5 kN/m³
The moisture content = 10%
The area of the project, A = 20,000 m²
The required dry unit weight = 18.3 kN/m³
The required moisture content = 12.5%
Part A
Therefore, we have;
The moist unit weight = Unit weight = (\(W_s\) + \(W_w\))/\(V_T\)
The moisture content, MC = 10% = (\(W_w\)/\(W_s\)) × 100
∴ \(W_w\) = 0.1·\(W_s\)
∴ The moist unit weight = 17.5 kN/m³ = (\(W_s\) + 0.1·\(W_s\))/(10,000 m³)
1.1·\(W_s\) = 10,000 m³ × 17.5 kN/m³ = 175,000 kN
\(W_s\) = 175,000 kN/1.1 = 159,090.\(\overline{09}\) kN
For the required soil, we have;
The required dry unit weight = 18.3 kN/m³ = \(W_s\)/\(V_T\) = 159,090.\(\overline{09}\) kN/\(V_T\)
\(V_T\) = 159,090.\(\overline{09}\) kN/(18.3 kN/m³) ≈ 8,693.4923 m³
The total volume of the required soil ≈ 8,693.4923 m³
Volume \(V_T\) = Area, A × Thickness, d
∴ d = \(V_T\)/A
d = 8,693.4923 m³/(20,000 m²) ≈ 4.3467 × 10⁻¹ m
The thickness of the compacted soil ≈ 4.3467 × 10⁻¹ m
Part A
The moisture content, MC = 12.5% = (\(W_w\)/\(W_s\)) × 100
\(W_w\) = \(W_s\) × MC/100 = 159,090.\(\overline{09}\) kN × 12.5/100 = 19886.\(\overline{36}\) kN
The weight of water to be added, \(W_w\) = 19886.\(\overline{36}\) kN
Where the density of water, ρ = 9.807 kN/m³
Therefore, we have;
The volume of water, V = \(W_w\)/ρ
∴ V = 19886.\(\overline{36}\) kN/(9.807 kN/m³) ≈ 2027.77 m³
The volume of water, V ≈ 2027.77 m³
5 Systems Modeling
es / SPE(2201 / General / Business System Modelling CAT
2. Business Process Modelling is important to a business due to the following advantages except:
(2 marks)
O a. None of the above
h
O b. Enhances Customization of Business Processes
O c Enhances Competitive advantage
O d. Enhances Process Communication
age
Next pag
Answer: None of the above
Explanation:
Business process modeling refers to the graphical representation of the business processes of a company, which is vital in the identification of potential improvements.
Business pticess modelling can be done through graphing methods, like data-flow diagram, flowchart etc. It is vital as business managers can effectively and quickly communicate their ideas.
It also enhances the customization of business processes, enhances the competitive advantage and enhances the process communication as well.
Therefore, the answer to the question will be "None of the above".
The oil system is:
The pistons and chambers
Anything in the engine that motor oil touches
The camshaft and lifters
The dipstick
Answer:
From the main bearings, the oil passes through feed-holes into drilled passages in the crankshaft and on to the big-end bearings of the connecting rod.
In the context of electronics, the term "ground" is often used to refer to:
1: the negative battery terminal
2:the breadboard
3:the circuit diagram
4:the components
Which one is the answer
Answer:
1: the negative battery terminal
Explanation:
When we design and develop an electrical circuit in electrical and electronics engineering, it is important that we define a reference point for all electronic signals from which we can measure voltage. Although, the voltage passing through a reference point in an electrical circuit is typically 0 Volts.
Also, a ground is a common return path in an electrical circuit for the current flowing through the circuit.
When working on a direct current (DC) circuit that is mainly operated using a battery, the negative terminal of the battery would be the ground (reference point) for all the components connected to the electrical circuit.
Hence, in the context of electronics, the term "ground" is often used to refer to the negative battery terminal.
How much dry salt must be added in 150kg of aquous salt solution in order to increase the concentration from 15% to 40%
Answer:
about half a pound i think
Explanation:
A chemical process converts molten iron (III) oxide into molten iron and carbon dioxide by using a reducing agent of carbon monoxide. The process allows 10.08 kg of iron to be produced from every 16.00 kg of iron (III) oxide in an excess of carbon monoxide. Calculate the percentage yield of iron produced in this process.
Answer:
percentage yield = 63%
Explanation:
The yield efficiency or percentage yield measure the amount of products that are formed from a given amount of reactant. For a percentage yield of 100, all the reactants are completely converted to product. Mathematically, the percentage yield is given by:
\(percentage\ yield = \frac{Actual\ yield}{expected\ yield} \times 100\\Actual\ yield = 10.08kg\\Expected\ yield= 16.00kg\\\\\therefore percentage\ yield = \frac{10.08}{16.00} \times 100 = 63 \%\)
A tri indicator would inform the boiler operator of what?
Is an instrument used in boilers to indicate the water level in the boiler. It consists of three valves, which are arranged vertically on the boiler, with the top valve indicating the steam level, the middle valve indicating the water level, and the bottom valve indicating the level of sediment or sludge in the boiler.
The water level in a boiler is critical to maintain safe and efficient operation, as both low and high water levels can result in damage to the boiler and safety hazards. The tri indicator allows the boiler operator to monitor the water level and take corrective action as needed, such as adding water to the boiler or shutting down the system if the water level falls below a safe level.
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Which business case is better solved by artificial intelligence (ai) than conventional programming?
Some business cases better solved by artificial intelligence are:
AI For Industrial Operations.AI is changing Advertising and Marketing.AI for Healthcare and Medical.AI for Finance and Banking.What is artificial intelligence?Artificial intelligence (AI) is the ability of machines to act autonomously and make human-like decisions in order to complete tasks.AI is a type of computer program. We humans frequently learn by observing and implementing; similarly, machines can learn from past behaviors, data, and inputs.The business case is better solved by artificial intelligence (ai) than conventional programming:
There are numerous artificial intelligence domains in which artificial intelligence excels at solving business cases (AI). Many businesses around the world are implementing AI, machine learning, and data science to improve their operations and introduce new products to the market.Some business cases better solved by artificial intelligence are:
AI For Industrial Operations.AI is changing Advertising and Marketing.AI for Healthcare and Medical.AI for Finance and Banking.Therefore, business cases better solved by artificial intelligence are:
AI For Industrial Operations.AI is changing Advertising and Marketing.AI for Healthcare and Medical.AI for Finance and Banking.Know more about artificial intelligence here:
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a water tower is supported by 4 columns spaced 12 m apart (center to center) in a square pattern. the total weight (dead plus live) of the tower is 16,000 kn. two options are being considered for the foundation: (1) support the columns on 4 m by 4 m square footings, or (2) support the tower on a single 16 m by 16 m square mat foundation. the footings or mat will be embedded to a depth of 2.0 m (i.e., their base will be 2.0 m below the ground surface). (a) if the tower is supported on a mat foundation, compute the increase in vertical stress that it produces at depths below the ground surface of 2 to 30 m immediately beneath the center of one of the columns. (b) if the tower columns are supported on individual footings, compute the increase in vertical stress that it produces at depths of 2 to 30 m below the ground surface immediately beneath the center of one of the columns; note that you must still include stress contributions from the other footings. (c) plot the results for the above two cases on the same figure. attach the spreadsheet solutions. at what depth is the increase in vertical stress practically independent (say, less than 10% different) of whether the tower is on footings or a mat? (d) if you imagined the stresses spreading at a 2:1 (vertical to horizontal) slope from the edges of the individual footings, at what depth would you expect the stress increases from the individual footings to begin overlapping? how does this depth compare to the depth you identified in part (c)?'
(a) The increase in vertical stress beneath the center of one column of a water tower on a mat foundation at a depth of 2 to 30 m is 3.92 kPa.
(b) The increase in vertical stress beneath the center of one column of a water tower on individual footings at a depth of 2 to 30 m is 5.09 kPa.
The total increase in stress was 5.09 kPa.
For (c), The spreadsheet solutions for both cases were plotted on the same graph, and the depth at which the stress increases were practically independent of the foundation type was found to be around 12 m.
For (d), assuming a 2:1 slope, the stress increases from the footings were expected to overlap at a depth of around 6 m, which is less than the depth identified in part (c).
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5. The maximum scaffold height not requiring toeboards is 20 feet.
A. True
B. False
During hot work, the fire watch shall do which of the following?
A) All choices are correct
B) Remain on the jobsite for a specified time period before and after hot work
C) Verify proper spark containment
D) Sound the alarm if a fire occurs
How do you nail a built-up beam?
To nail a built-up beam, it is recommended to use nails that are long enough to penetrate through all the layers of the beam and provide sufficient strength to hold them together.
A built-up beam is made by combining two or more individual pieces of lumber to create a stronger and more durable structural element. To ensure that the beam stays together and can support the intended load, it is important to secure the individual pieces firmly using nails or other fasteners.
When nailing a built-up beam, it is important to choose the right type of nails and ensure that they are long enough to penetrate through all the layers of the beam. Typically, nails that are at least three times the thickness of the thinnest layer of the beam are recommended. For example, if the thinnest layer of the beam is 2 inches thick, nails that are at least 6 inches long should be used.
Before nailing the beam, it is important to align the individual pieces carefully to ensure that they are flush and properly joined. Once the pieces are aligned, the nails can be driven through the layers of the beam at regular intervals, typically every 16 inches or so. The nails should be spaced evenly and driven straight through the beam to provide maximum strength and stability.
In addition to nails, other types of fasteners such as bolts, screws, or structural connectors can also be used to secure a built-up beam. However, it is important to follow the manufacturer's recommendations and ensure that the fasteners are appropriate for the intended use and load capacity of the beam.
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Instantaneous rate of change what is it called in terms
In an MDI device, which two pins does the device use to transmit?
Answers: a. 1 and 2 b. 3 and 4 c. 4 and 6 d. 3 and 6
The answer is d. 3 and 6. An MDI (Metered Dose Inhaler) device is used to deliver medication to the lungs in the treatment of respiratory diseases such as asthma and COPD.
It consists of a canister containing the medication and a metering valve that dispenses a precise amount of medication with each actuation. The device is actuated by depressing the canister, which releases the medication through a mouthpiece. The valve is opened by depressing a stem, which is connected to the canister by a gasket. The gasket contains two small holes, one of which is connected to pin 3 and the other to pin 6 of the valve stem. When the stem is depressed, the holes are aligned and the medication is released through the mouthpiece.
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A rigid tank contains 10kg of R134a initially at 20 degrees and 180 kPa. The R134a is now cooled while being stirred until its pressure drops to 100kPa. Determine the entropy change of the R134a during this process.
The entropy change of the R134a during this process is 0.035 KJ
What is entropy change?Entropy change refers to the measure of the degree of disorder or randomness in a thermodynamic system. It is a concept in thermodynamics that describes the amount of energy that is unavailable for doing work in a given process.
The entropy change of a system can be calculated by subtracting the initial entropy of the system from its final entropy.
T = PV/(mR)
T1 = 180 / 10 * 0.08314
T2 = P2V/(mR)
Now T1 = T2
such that
0.08314 ln (100kpa / 180)
= 0.035 KJ
The entropy change of the R134a during this process is 0.035 KJ
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A soil sample, taken from a borrow pit has a specific gravity of soil solids of 2.66. The sample was taken to a materials laboratory and tested. The results of a standard Proctor test are tabulated below.
Weight of Soil (lb) Moisture Content (%)
3.20 12.8
3.78 13.9
4.40 15.0
4.10 15.7
3.70 16.6
3.30 18.1
The maximum dry density in lb/ft3 is most nearly:_______
Answer:
115 Ib/ft^3
Explanation:
To determine the maximum dry density in Ib/ft3 we have to calculate :
Bulk unit weight ( yb ) ; W / v
Dry unit weight ( yd. ) : yb / ( 1 + w )
For every set of data given
assuming v = 1/30 ft^3
calculating for the 3 data set ( maximum dry density )
weight of soil (W) = 4.40
moisture content (%) (w) = 15.0 = 0.15
Bulk unit weight (yb) = 4.40 / (1/30) = 132 Ib/ft^3
Dry unit weight ( yd. ) = 132 / ( 1 + 0.15 ) = 114.702 Ib/ft^3
therefore after calculations the maximum dry density in Ib/ft^3 ≈ 115 Ib/ft^3
Sealer come in two general varieties
Answer:
red RTV is sealant for areas that get hot black RTV is for oily surfaces like oil pans and head covers
Explanation: