The minimum number of contact points for a secondary datum is three. In metrology and engineering, a datum is a reference point, surface, or axis from which measurements are made to ensure accuracy and consistency.
Primary datums have three contact points, while secondary and tertiary datums require a minimum of two and one contact points, respectively. Secondary datums are established in relation to the primary datum to provide additional reference points for measuring and manufacturing processes. These secondary datums help to define the orientation of an object and restrict its motion in specific ways. By using at least three contact points for the primary datum and a minimum of two contact points for the secondary datum, a stable and well-defined reference framework can be established for precise measurements and alignments. This ensures that the manufactured parts or assemblies meet the required tolerances and specifications for optimal performance and fit.
Learn more about datum here
https://brainly.com/question/28071913
#SPJ11
Example 1: the two dimensional points P1(0,0) and P2(1,0) and the two tangents P', (1,1) and P2 (0,-1).find the equation of the curve P(u).
Answer: (0,0)+ (1,0)= 1 lines upwards( suggesting that this is a line graph not saying it is but as an example) an (1,1) and (0,-1) all make a small square ( as this is a 2 dimensional graph that it has a negative side too,(below the positive side)) i hope this helps and is what you are looking for
Explanation:
Given the function: def iSquaredPlus10 (x): result x**2 + 10 print (result) If the function is called with an argument of 2, what will the function return? 2 o 4 14 None O None of the above
The function `iSquaredPlus10(x)` return if called with an argument of 2 the value is 14.
What will the function `iSquaredPlus10(x)` return if called with an argument of 2?The given function, `iSquaredPlus10(x)`, takes an argument `x` and computes the result as the square of `x` plus 10. The computed result is then printed using the `print()` function.
If the function is called with an argument of 2, the function will return the value of `2**2 + 10`, which is 14. Therefore, the function will return 14.
The `print(result)` statement is used to display the result on the console, but it does not affect the return value of the function itself. In this case, the function does not have an explicit return statement, so it will implicitly return `None`.
However, the important value to consider in this case is the printed output, which is 14.
Learn more about function
brainly.com/question/30721594
#SPJ11
name one simple machine in our home and explain how it can be made to be more efficient.
Levers are a type of basic machine that are useful for altering the span of the shaft or the height of the fulcrum.
What is an example of a machine?A machine seems to be a physical system that use power to exert forces, regulate movement, and carry out an activity. The phrase is frequently used to refer to both naturally occurring biological macromolecules and manmade devices that use engines or motors.
How come it's called a machine?The Greek word "makhana," which means "device," is where the term "machine" originates. In 1540, the name was first used to designate any form of construction in English. About 1670, its contemporary meaning as a term for a machine with several moving components started to take shape.
To know more about Machine visit:
https://brainly.com/question/30695896
#SPJ4
What is thermodynamics
Explanation:
Thermodynamics is the branch of science that deals with the relation between radiation, energy, physical properties of matter.
There are 4 laws of thermodynamics namely as follows :
Zeroth Law, First Law, Second Law and Third Law.
There are 4 branches of thermodynamics:
Classical thermodynamics, Statistical mechanics, Chemical thermodynamics and Equilibrium thermodynamics.
Hence, this is the required solution.
Answer:
The movement of heat
Explanation:
fill in the blank. two categories of laser printers are___. two categories of laser printers are___. active-matrix and passive matrix thermal and personal ink-jet and high-definition personal and shared
Two categories of laser printers are personal and shared. Personal laser printers are designed for individual use, typically in a home or small office setting.
Shared laser printers are designed for use by multiple people in a larger office setting. It is important to note that the terms "active-matrix" and "passive-matrix" do not apply to laser printers, but rather to different types of LCD screens. "Thermal" and "ink-jet" are also not categories of laser printers, but rather different types of printers altogether. Laser printers use toner, rather than ink, to produce high-quality prints.
Learn more about matrix: https://brainly.com/question/2456804
#SPJ11
The two structural members, one of which is in tension and the other in compression, exert the indicated forces on joint o. determine the magnitude r of the resultant r of the two forces and the angle θ which r makes with the positive x axis (measured counterclockwise from the x axis).
A car is driven over a curb twice—once very slowly and once quite rapidly. What would you need to know about the car in the second case that you did not need to know in the first case if you were required to find the tire force that resulted from going over the curb?
Answer:
You'd need to know things like the weight of the car, the spring constant of the suspension springs.
Explanation:
Driving over the curb slowly does not have much of an "impact" because of the small potential energy it has but to find the force that results from going over the curb at a much higher speed, you would need to know the weight of the car since it directly impact the force that it applies. You also would need to know about the car's suspension, the spring material, how stiff the springs are and their spring constant to calculate the force they absorb.
I hope this answer helps.
_______________ gas is produced when a battery is being charged or discharged. Group of answer choices None of the above Hydrogen Acetylene Nitrogen
Answer:
Hydrogen gas
Explanation:
When a battery such as lead acid battery is being charged or discharged, it produces hydrogen gas. This gas is produced by the electrolysis of water from the aqueous solution of sulfuric acid.
Therefore, when batteries are being charged or discharged, they generate hydrogen gas that is not toxic but explosive in high concentrations in air.
The correct answer is "Hydrogen gas"
Most technicians install rebuilt or new power steering pumps rather than overhauling the defective unit in the shop. True or False?
Answer:
Most technicians install rebuilt or new power steering pumps rather than overhauling the defective unit in the shop.
True
Explanation:
It has been established that most technicians, instead of overhauling the defective power steering pumps, prefer to install rebuilt or revamped pumps or even new pumps when they could have overhauled the unit themselves. Some are afraid that leakage could occur again. They are not confident enough to do the overhauling in-house or some claim that they do not have the time and other tools to carry out the overhauling. Acknowledgedly, overhauling a power steering pump is not a job for the novice. They require experienced and skilled hands to do the hard work.
Saturated refrigerant-134a vapor at 15 psia is compressed reversibly in an adiabatic compressor to 80 psia. Determine the work input to the compressor. Use the tables for R-134a.
The initial enthalpy and the entropy of the saturated water can be found out from the table of A-12E
i.e. \($h_1= 101 \ \text{Btu/lbm}$\)
\($s_1 = 0.22717 \text{ Btu/lbmR}$\)
Since the process mentioned above is an adiabatic compression process, the entropy will remain constant throughout the process. Therefore, we take the value of entropy and the final pressure using the table with few interpolations and also approximations to find the final enthalpy. It is given by :
\($h_2= 116.09 \text{ Btu/lbm}$\)
So the work input from the energy balance equation :
\($\dot{W} + \dot{m}h_1 = \dot{m}h_2$\)
\($w=h_2 - h_1$\)
= 116.09 - 101
= 15.09
Therefore, \($w= 15.09 \text{ Btu/lbm}$\)
Which of the following sentences correctly uses commas after prepositional phrases
Answer:
You didn't write full questions
Explanation:
Where are options? You say following but there is no any option
Describe the steps in the PDCA (Deming or Shewhart) cycle.
PDCA (Plan-Do-Check-Act) is a four-step iterative management method. Plan: Set objectives and devise a plan. Do: Implement the plan on a small scale.
Check: Evaluate the results against objectives and identify deviations. Act: Adjust and refine the plan based on the evaluation. Repeat the cycle to continuously improve processes.
The PDCA cycle begins with planning, where objectives are set and a plan is developed. Next is the implementation stage, where the plan is executed on a small scale. The check phase involves evaluating the results and comparing them with the objectives to identify any deviations or gaps. In the act phase, necessary adjustments and refinements are made to the plan based on the evaluation. The cycle repeats to foster continuous improvement and maintain a dynamic process of goal-setting, implementation, evaluation, and refinement.
Learn more about refinement here:
https://brainly.com/question/32323284
#SPJ11
To check for certain practices that must be used in installing and testing a plumbing system, a plumber refers to the________Extension linesSpecificationsHigher quality
To check for certain practices that must be used in installing and testing a plumbing system, a plumber refers to the specifications. These specifications provide guidelines to ensure proper installation and testing procedures are followed for a safe and efficient plumbing system.
Plumbing specifications and quality refer to the standards and characteristics of plumbing systems and components. Plumbing specifications outline the requirements for installation, materials, dimensions, and performance of plumbing fixtures, pipes, valves, and fittings. Quality in plumbing refers to the level of craftsmanship, durability, and reliability of the plumbing system, ensuring proper functioning and longevity.
To ensure high-quality plumbing, it is important to use plumbing fixtures, pipes, valves, and fittings that meet recognized industry standards and codes. These standards, such as those established by organizations like the International Plumbing Code (IPC) or National Plumbing Code (NPC), specify requirements for material composition, strength, leak resistance, and performance.
High-quality plumbing materials typically include durable materials like copper, brass, stainless steel, or PVC (polyvinyl chloride). These materials are chosen based on factors such as compatibility with the intended use, resistance to corrosion or degradation, and ease of installation.
In terms of workmanship, quality plumbing installations involve precise measurements, proper alignment, secure connections, and effective sealing to prevent leaks and ensure efficient water flow. Professional plumbers with relevant experience and expertise play a crucial role in achieving plumbing systems of high quality.
Regular maintenance and inspection are also essential for preserving the quality of plumbing systems. This includes identifying and addressing any leaks, blockages, or malfunctioning components promptly to avoid potential damage and ensure the continued performance of the plumbing system.
Overall, plumbing specifications and quality are vital considerations for the proper functioning and longevity of plumbing systems. Adhering to industry standards, using quality materials, employing skilled professionals, and maintaining the system can help ensure reliable and efficient plumbing in buildings or residences.
To know more about plumbing quality standards visit:
https://brainly.com/question/31928803
#SPJ11
_______________ is an effective way to manage waste in a shop.
Answer:
To reduce waste.
Explanation:
A helicopter landing pad is to be constructed over an area of 40 ft by 70 ft. It is to be 2 ft thick. How many cubic feet must be ordered?
The volume of cuboid in cubic feet which must be ordered is equal to 5,600 cubic feet.
Given the following data:
Length of helicopter landing pad = 40 ft.
Width of helicopter landing pad = 70 ft.
Height or thickness of helicopter landing pad = 2 ft.
How to calculate the volume of a geometric figure?Based on the information provided, we can reasonably infer and logically deduce that the shape of this helicopter landing pad is a cuboid.
Mathematically, the volume of a cuboid can be calculated by using this following formula:
Volume = l × w × h
Where:
l represents the length of a cuboid.w represents the width of a cuboid.h represents the height of a cuboid.Substituting the given parameters into the formula, we have;
Volume = 40 × 70 × 2
Volume = 5,600 cubic feet.
Read more on volume of a cuboid here: https://brainly.com/question/24919497
#SPJ1
Discuss the major requirements of an EMS under ISO 14001.
the major requirements of an EMS under ISO 14001: Environmental Policy, Planning, Implementation and Operation, etc.
ISO 14001 is an internationally recognized standard for environmental management systems (EMS). It sets out the criteria for an organization to establish, implement, maintain, and continually improve an EMS. The major requirements of an EMS under ISO 14001 include:
1. Environmental Policy: The organization must establish and communicate a clear environmental policy that outlines its commitment to environmental performance and compliance with applicable laws and regulations.
2. Planning: The organization needs to identify and assess its environmental aspects and impacts, set environmental objectives and targets, and develop action plans to achieve them. This includes considering legal and other requirements, as well as emergency preparedness and response.
3. Implementation and Operation: The organization must establish and document the processes and procedures necessary to achieve its environmental objectives. This includes defining roles and responsibilities, providing appropriate resources, and establishing communication and training programs.
4. Checking and Corrective Action: Regular monitoring and measurement of environmental performance are required to ensure compliance and identify opportunities for improvement. Non-conformities, incidents, and corrective actions need to be documented and addressed in a timely manner.
5. Management Review: Top management must review the EMS at planned intervals to ensure its continuing suitability, adequacy, and effectiveness. This involves reviewing the organization's environmental policy, objectives, targets, and progress towards achieving them.
6. Continual Improvement: The organization should continually strive to improve its environmental performance. This includes setting objectives for improvement, implementing initiatives to reduce environmental impacts, and promoting pollution prevention and sustainable practices.
It is important to note that the specific requirements of ISO 14001 may vary depending on the nature of the organization, its size, and its environmental context. Organizations are encouraged to tailor their EMS to their unique circumstances while meeting the overall requirements of the ISO 14001 standard.
To know more about ISO, click here:
https://brainly.com/question/25404565
#SPJ11
identifies potential new customers and preserves favorable business relationships with past customers
❎❎❎❎❎❎❎ sorry but that didn't help me that much
2.2 k omega= _____ omega
Explanation:
2.2 k omega= ___2200__ omega
here k is kilo so simply multiply by 1000
Coal containing 21% ash is completely combusted, and the ash is 100% removed in a water contact scrubber. If 10,000 kg of coal is burned per hour with a scrubber flow rate of 1.0 m3/min, the weight percentage of the ash in the water/ash stream leaving the scrubber is most nearly:_______.
a. 3.4
b. 14.3
c. 25.9
d. 67.7
Answer:
Weight Percentage of Ash = 3.4
Explanation:
Given - Coal containing 21% ash is completely combusted, and the ash is 100% removed in a water contact scrubber. If 10,000 kg of coal is burned per hour with a scrubber flow rate of 1.0 m3/min.
To find - the weight percentage of the ash in the water/ash stream leaving the scrubber is most nearly ?
Solution -
Given that,
Coal Burned Rate = 10,000 kg/hr
= \(\frac{10,000}{60 min} * 1 hr *\frac{kg}{hr}\)
= 166.6666 kg/min
⇒Coal Burned Rate = 166.6666 kg/min
Now,
Given that,
Ash content in coal = 21 %
⇒Ash in (coal that burned) = 166.6666 × \(\frac{21}{100}\) kg/min
= 34.9999 ≈ 35 kg/min
⇒Ash in (coal that burned) = 35 kg/min
Now,
We know,
Density of water = 1000 kg/m³
Now,
Water flow Rate = \(1\frac{m^{3} }{min} * density\)
= 1000 kg/min
⇒Water flow Rate = 1000 kg/min
Now,
Total Mass flow Rate of (Water + Ash stream) = ( 1000 + 35) kg/min
= 1035 kg/min
⇒Total Mass flow Rate of (Water + Ash stream) = 1035 kg/min
So,
Weight Percentage of Ash = (Weight of Ash ÷ Total weight of Stream) × 100
= (35 ÷ 1035) × 100
= 3.38 ≈ 3.4
∴ we get
Weight Percentage of Ash = 3.4
Which cast-in-place concrete systems are the easiest to penetrate with small holes for pipes and poke through electrical outlets?
Lightweight aggregate concrete, precast concrete with hollow cores, and poured-in-place concrete with fiber reinforcement
There are various cast-in-place concrete systems that can be easily penetrated with small holes for pipes and electrical outlets. However, some of the most common systems include lightweight aggregate concrete, precast concrete with hollow cores, and poured-in-place concrete with fiber reinforcement. These systems typically have a lower density and higher porosity, making them easier to penetrate with small holes without compromising the structural integrity of the concrete. It is important to consult with a professional contractor to ensure that the holes are drilled in the right locations and to the appropriate depth to avoid damaging any structural components.
To know more about electrical outlets
https://brainly.com/question/19614233?
#SPJ11
A machine operates using air flow under steady conditions with the following inlet and exit flow parameters. At the inlet, the pressure is 1.75 MPa at a temperature of 300 K. The inlet velocity is 25 m/s. The inlet diameter is 20 cm. At the outlet, the pressure is decreased to 55 kPa at a temperature of 500 K. The outlet velocity is 100 m/s. The elevation increase between the inlet and outlet is 100 m. The machine includes a turbine operating at 5 kW
Determine mass flow rate through the machine.
Answer:
Mass flow rate = 15.96kg/s
Explanation:
From
P1V1=mRT1
V1=RT1/P1
V1=0.0492m³/kg
M=A(U)/V1
Where u is the velocity
A=πd²/4
M=π(0.2²)/4×25/0.0492
M=15.96kg/s
A cart rolls down a ramp. The cart has a mass of 45 lb m . The cart starts at rest. The ramp is angled 0.17 radians downward from the horizontal. The cart travels a total distance of 97 meters along the ramp on the planet earth. What is the velocity of the cart at the bottom of the ramp? Assume friction is negligible
Which are the methods used to seismically retrofit a building?
The methods used to seismically retrofit a building are: beam addition method, seismic wall addition method, support point adding method, and
seismic isolation method.
In construction of a building, seismically retrofitting or earthquake retrofitting is commonly done. The major reason to why it is done is to prevent displacement from the structure's foundation.
When seismically retrofitting is done, a building is considered safer and less likely to suffer damage when earthquake or any seismic forces strike.
So a retrofit is worth it as it will strengthen a building or an house against shake damage to help people living in it to remain safe and less worried. The following methods can therefore be used to provide a retrofit or to seismically retrofit a building:
Beam addition method
This is done by adding beams between the main girders of the existing reinforced concrete to improve the load carrying capacity of the reinforced concrete.
Seismic wall addition method
This is done by placing new reinforced concrete walls between existing ones and bonding them to improve load carrying capacity as a structural body
Support point adding method
This is done by supporting sections of beams and other existing concrete members with new members to reduce the span of members
Seismic isolation method
This is done by using seismic isolation bearings to reduce the seismic energy applied to the structure. This will improve the building's performance values during an earthquake.
Learn more about seismically retrofitting here:
https://brainly.com/question/17238668
#SPJ4
given the wheelbase of the car 138.8 inches, trackwidth 75 inches and loads on tires as follows. determine the longitudinal cg location in inches measured from the front wheel,
Wheelbase, trackwidth, and tire load data can be used to determine the longitudinal CG location. The distance in inches between the center of gravity and the front wheel.
Wheelbase, trackwidth, and tire load data can be used to determine a car's longitudinal center of gravity (CG) location. The distance between the centers of the front and rear wheels is known as the wheelbase, while the distance between the left and right tire centerlines is known as the trackwidth. The amount of weight on each of the four tires that are in contact with the ground is known as the tire load. The entire weight of the vehicle is divided by the wheelbase and trackwidth, and the resulting number is multiplied by the wheelbase to determine the longitudinal center of gravity (CG) location. The resultant measurement, taken from the front wheel, is the longitudinal CG location in inches.
Learn more about distance here-
https://brainly.com/question/19915401
#SPJ4
Seawater containing 3.50 wt% salt passes through a series of 11 evaporators. Roughly equal quantities of water are vaporized in each of the 11 units and then condensed and combined to obtain a product stream of fresh water. The brine leaving each evaporator but the 11this fed to the next evaporator. The brine leaving the 11th evaporator contains 5.00 wt% salt. It is desired to produce 2 x 104 L/h of fresh water. What is the mass flow rate of concentrated brine out of the process?
______kg/h Save for Later
Answer: the mass flow rate of concentrated brine out of the process is 46,666.669 kg/hr
Explanation:
F, W and B are the fresh feed, brine and total water obtained
w = 2 x 10^4 L/h
we know that
F = W + B
we substitute
F = 2 x 10^4 + B
F = 20000 + B .................EQUA 1
solute
0.035F = 0.05B
B = 0.035F/0.05
B = 0.7F
now we substitute value of B in equation 1
F = 20000 + 0.7F
0.3F = 20000
F = 20000/0.3
F = 66666.67 kg/hr
B = 0.7F
B = 0.7 * F
B = 0.7 * 66666.67
B = 46,666.669 kg/hr
the mass flow rate of concentrated brine out of the process is 46,666.669 kg/hr
1. A flywheel is suspended by resting the inside of the rim on a horizontal knife edge so that the wheel can swing in a vertical plane. The flywheel has a mass of 350Kg. The knife edge is parallel to and making 350mm from the axis of the wheel. The time for making one small oscillation is 1.77 seconds. Assuming that the centre of mass is in the axis of the wheel, determine:
(I).The radius of gyration of the wheel about the axis.
(II). The torque to increase the speed of the flywheel at uniform rate from 240 rev/min to 250 rev/min in 0.75seconds when the flywheel is revolving about its axis.
2. A solid metal cylinder 450mm diameter is suspended with its axis vertical by means of a wire coaxial with the cylinder and rigidly attached to it. The stiffness of the wire is 22Nm per radian of twist. Find the necessary mass of the cylinder so that when it is given a small angular displacement about its axis, it will make 40 vibrations per minute.
Answer: A fly wheel having a mass of 30kg was allowed to swing as pendulum about a knife edge at inner side of the rim as shown in figure.
Explanation:
Once you have chosen a topic, what should you do before beginning the research process? a. Find as many possible facts and details on your topic c. Discuss your idea with others b. Choose a position d. None of these Please select the best answer from the choices provided A B C D
Answer:
The answer is C
Explanation:
Once you have chosen a topic, the next thing you should do before beginning the research process is: C. discuss your idea with others.
What is a research topic?A research topic refers to an event, issue, or subject that a researcher is keenly and deeply motivated or interested in, especially when conducting a study or research.
Based on scientific information and records, it is very important you discuss your idea with others once you have chosen a topic, before beginning the research process.
Read more on research topic here: https://brainly.com/question/24590700
#SPJ2
Open channel flow and pipe flow are two different types of flow. Differentiate open channel flow from pipe flow in terms of energy grade line (EGL) and hydraulic grade line (HGL) using a suitable diagram.
In open channel flow and pipe flow, the main difference lies in the presence or absence of a free surface. Open channel flow refers to the flow of fluid in an open channel, such as rivers, canals, or channels with free surfaces exposed to the atmosphere.
Pipe flow, on the other hand, occurs within enclosed pipes or conduits where the fluid is confined within the pipe boundaries.
Energy Grade Line (EGL) and Hydraulic Grade Line (HGL) are two important concepts used to analyze and understand the flow behavior in both open channel flow and pipe flow. Here's a comparison of EGL and HGL in the two types of flow:
Open Channel Flow:
In open channel flow, the EGL and HGL are represented as follows:
Energy Grade Line (EGL): In open channel flow, the EGL represents the total energy head of the fluid, including both the pressure head and the elevation head. It is a graphical representation of the total energy per unit weight of the fluid along the flow direction. The EGL in open channel flow gradually decreases due to energy losses caused by friction and other factors.
Hydraulic Grade Line (HGL): In open channel flow, the HGL represents the pressure head of the fluid, which is the height above a reference plane where the pressure is defined as zero. The HGL represents the elevation head of the fluid, neglecting the velocity head. The HGL in open channel flow typically follows the surface profile of the channel.
Diagram: In open channel flow, the EGL and HGL are depicted in a diagram as two parallel lines. The EGL is located above the HGL, indicating that energy losses occur in the flow.
Pipe Flow:
In pipe flow, the EGL and HGL are represented as follows:
Energy Grade Line (EGL): In pipe flow, the EGL represents the total energy head of the fluid, including both the pressure head, elevation head, and velocity head. It is a graphical representation of the total energy per unit weight of the fluid along the flow direction. The EGL in pipe flow remains relatively constant along the pipe, assuming a steady and uniform flow.
Hydraulic Grade Line (HGL): In pipe flow, the HGL represents the pressure head of the fluid, neglecting the velocity head. The HGL represents the elevation head of the fluid, considering the pressure variations due to pipe geometry and flow conditions. The HGL in pipe flow typically follows the pipe profile, indicating pressure changes.
Diagram: In pipe flow, the EGL and HGL are depicted in a diagram as two parallel lines. The EGL is located above the HGL, indicating the presence of velocity head in addition to pressure and elevation head.
Overall, the key distinction between open channel flow and pipe flow lies in the presence of a free surface in open channel flow, which affects the behavior of EGL and HGL. In pipe flow, the confinement of the fluid within a closed conduit results in different patterns of EGL and HGL, with the inclusion of the velocity head.
To know more about pipe profile, visit:
https://brainly.com/question/32614115
#SPJ11
When you hover over an edge or point, you are activating ____________ in SketchUp?
A. Zoom Focus
B. Inference Tools
C. Drawing Tools
D. Selection Filters
Describe some three materials with nanocrystalline structures and identify each example of those material
Ultrafine crystalline grains in the nanometer range that are separated by grain boundaries or interfaces define nanocrystalline materials.
A nanocrystalline structure: what is it?A polycrystalline substance with a few nanometer-sized crystallites is referred to as a nanocrystalline (NC) substance. These materials bridge the gap between traditional coarse-grained materials and amorphous materials devoid of long-range organisation. Materials that contain clusters, crystallites, or molecules with diameters between 1 and 100 nm are said to be nanostructured materials.
What is an example of a nanostructure?The gecko's foot, iridescent butterfly wings, and hydrophobic leaves are just a few examples of nanostructures found in nature. Scientists and engineers are employing biomimicry to develop new goods with these nano-inspired qualities.
To know more about nanocrystalline materials visit:-
brainly.com/question/12978045
#SPJ1