On sectional aeronautical charts, airports with control towers are displayed in blue, whereas all other airports are depicted in magenta.
The sectional aeronautical chart is what?For the visual navigation of slow to normal speed aircraft, sectional charts are created. Contour lines, shading relief, drainage density, and a wide range of visual landmarks and checkpoints that are utilized for VFR flights make up the topographic information.
What distinguishes sectional from terminal charts?Pilots can learn more about the congested areas within and near Class B airspace from terminal charts. Even though they contain the same kinds of data as sectional charts, they provide more specifics, particularly regarding airspace, airports, obstacles, topography, and visual checkpoints.
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consider the cycle shown below, with the given state points. steam is the working fluid, flowing at steady state at a mass flow rate of 0.5 kg/s. the turbine is adiabatic and isentropic. what is the net power produced by the cycle, in kw?
A steam turbine performs with an isentropic efficiency of η t = 0.84 .
What is the isentropic efficiency of steam turbine?The inlet conditions are 4 MPa and 650°C, with a mass flow rate of 100 kg/s, and the exit pressure is 10 kPa.Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam arc 4 MPa, 500 degree C, and 80 m/s, and the exit conditions are 30 kPa, 92 percent quality, and 50 m/s, The mass flow rate of the steam is 12 kg/s.Thermodynamics. Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa, 450◦C, and 80 m/s, and the exit conditions are 10 kPa, 92 percent quality, and 50 m/s. The mass flow rate of the steam is 12 kg/s.The average steam system thermal cycle efficiency is 56.3%, which means that 43.7% of the energy that is consumed in the boilers is wasted or lost. Every operation will have a few acceptable losses, but a high percentage of losses can be prevented or eliminatedTo learn more about isentropic efficiency refers to:
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please explain the effectiveness of linear and binary searches on both ordered and unordered arrays.
Linear search is effective for both ordered and unordered arrays, since it looks through every element of the array in order until it finds the element that it is searching for.
On the other hand, binary search is much more efficient when searching through an ordered array, since it can quickly narrow down the range of elements that it needs to look through. Binary search is not effective when searching through an unordered array, since it requires the array to be sorted first before it can begin searching.
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name two problems the refrigeration system may have if the condensing unit is exposed to a low ambient condition when not equipped with a low ambient head pressure controlled valve.
Insufficient refrigerant flow rates through metering devices and starved evaporator coils in condensers can result from low temperatures.
What is the refrigeration principle?A substance that moves heat from one place to another during a heat cycle is called a refrigerant. When a refrigerant is applied to the food that is kept in the refrigerator, it absorbs heat and transfers the heat to the surrounding area at a lower temperature. The refrigeration cycle is made up of four main parts: evaporator, compressor, condenser, and thermal expansion valve (TXV) metering device The refrigeration cycle's primary function is to transfer heat from indoor air to outdoor air.
The first law of thermodynamics is the underlying physics principle of mechanical refrigeration. According to this law, energy—or heat in this instance—cannot be produced or destroyed; rather, it can only be transferred from one location to another, and work is required to initiate the transfer of energy.
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why does my lenovo laptop lose battery percentage when i have it contantly plugged in on coservation mode
At 60%, the battery is essentially removed by Conservation Mode, which then allows it to soul to 55%. It may take several days or weeks for 5% of a charge to be lost. The cycle is then replayed.
How can I keep a good laptop battery?Lithium-ion cells degrade with time and operation, just like all batteries do. Try to maintain the battery capacity between 20% and 80% numerous times a week rather than using your smartphone for a brief period of time after plugging it in to recharge it to help improve battery life and performance.
Does the battery suffer from conserve mode?The battery may be completely filled to 100% by disabling Preservation Mode, but altering this setting may shorten the battery's lifespan.
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The pressure in a natural gas pipeline is measured by the manometer shown in Fig. 2 with
one of the arms open to the atmosphere where the local atmospheric pressure is 14.2 psia. Determine the absolute pressure in the pipeline.
Everything you touch is pressed upon by the weighty air that surrounds you. This pressure is referred to as air pressure or atmospheric pressure.
What is Atmospheric pressure?It is the force that the air above a surface applies to it while gravity pulls the surface toward Earth. A barometer is frequently used to measure atmospheric pressure.
A mercury column in a glass tube acts as a barometer, rising or falling in response to variations in the atmosphere's density. By measuring how much the mercury rises, meteorologists can determine the air pressure.
The standard unit of measurement known as one atmosphere (atm) corresponds to the average atmospheric pressure at sea level and 15 degrees Celsius.
Therefore, Everything you touch is pressed upon by the weighty air that surrounds you. This pressure is referred to as air pressure or atmospheric pressure.
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a u-shaped clevis holds a pin that connects to a single flat bar (like the connection at pin a of the two-link truss). what describes the loading configuration of the pin?
To prevent wear and lower the likelihood that either the pin or the clevis may fail, clevis pins should be tightly fitted to the holes in the clevis.
Threaded and unthreaded clevis pins are the two primary varieties. Unthreaded clevis pins feature a domed head on one end and a cross-hole on the other. A split pin or cotter pin secures the clevis pin in place (used in the USA). A formed head and a partially threaded shank are characteristics of threaded clevis pins. When putting the pin into the shackle, the formed head's cross-holed flat tab and lip act as a stop. Because of the flattened tab and the cross-hole, the pin may be moused easily during installation.
Although a bolt can serve as a clevis pin, it is not designed to withstand the lateral force that a clevis pin must withstand. While clevis pins and bolts are made to endure shearing forces, normal bolts are made to bear tension stresses.
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which of the following would be a reason why an organization would use web usage mining? more than one answer may be correct.
Web usage analysis gives information to advance the customer, sales, and marketing sectors.
Why do business websites use web usage mining?Data is gathered, stored, and analysed in an organisation to better meet consumer wants and requests using technology to access data from multiple data sources.Data mining techniques are used in the process of "web mining," which is the automated discovery and extraction of information from Web publications and services. Web mining's primary goal is to extract relevant data from the World Wide Web and its usage trends.Data mining is used by businesses to find patterns and relationships in the data that can help them make better business decisions. Data mining can be used to identify sales patterns, create cleverer marketing strategies, and precisely anticipate consumer loyalty.To learn more about Web refer to:
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which objective focuses closest to the slide when it is in focus
When the slide is focused, the 100x objective concentrates closest to it.
What Microscope Goal Should I Start With?Start off slowly! The specimen may be seen more clearly and it is easier to find the area of the sample you want to see because the 4x objective lens has the largest field of vision and the least magnification. It is then simpler to concentrate on the sample as a result.When the slide is focused, the 100x objective concentrates closest to it. Working distance is the measurement between the specimen and the objective lens. Working distance is inversely correlated with lens magnification.Focus is closest on the slide with the oil immersion lens.To learn more about immersion lens refer to:
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fill in the blank. as you enter the expressway from the___lane, adjust your speed to the flow of traffic. select a gap, signal, and check mirrors and blind spots. repeat the process if needed.
Adjust your speeds to a flow of traffic as you leave the on ramp lane and enter the highway.
Where are the blind spots on the majority of cars?The majority of cars have two main blind spots: one on each side, somewhat to the driver's left and right, where they are invisible to him or her.
Why is there a blind spot mirror?Drivers get a better vantage point of what is beside their vehicle thanks to blind-spot mirrors. When rounding a bend, especially, drivers struggle to see people, bicyclists, and automobiles immediately next to them when using traditional mirrors.
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Determine Vx, the voltage of the dependent voltage source in the following circuit. Assume k=710 ohms: Vx = klx 10kΩ + - 20k12 LIX 20V 30V 5k12 30k12
The dependence voltage source inside this following circuit has a voltage of 4.26 volt according to the supplied statement.
Why is voltage essential and what is it?Charged electrons (channel) must be pushed through such a circuit (between two sites) by the strength of a power generator known as voltage in order to power anything like a lamp. It is similar to the pressure within a drain pipe. Simply put, voltage is wiring strain and is measured in volts. A lamp can be lit when charged electron (current) are made to pass throughout a conducting loop under the pressure about an electronic course's power source. In some kind of a nutshell, voltage is calculated in volts and equals pressure (V).
Kcl at A;
Ix = 30/5k = mA
Vx = KIx
Vx = 710 * 6mA
Vx = 4.26 volt
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a rigid bar abcd is pinned at point b and supported by springs at a and d (see figure). the springs at a and d have stiffnesses k1 5 10 kn/m and k2 5 25 kn/m, respectively, and the dimensions a, b, and c are 250 mm, 500 mm, and 200 mm, respectively. a load p acts at point c. if the angle of rotation of the bar due to the action of the load p is limited to 38, what is the maximum permissible load pmax?
The supplied statement states that the maximum allowable load, or pmax, is 26.2mm.
What are springs used for?An elastic device known as a spring is used to store mechanical power and release it in response to the removal of an opposing force. Springs may be the solution if you want to apply force to move or keep anything within place without the help of propellers and perhaps other powered devices.
tan ∅ = δD/500mm
tan ∅ = δD/b
For a small deformation the angle of rotation is tan ∅ ≈ ∅
δD/b ≈ ∅
The relation of angle of rotation is written as
∅ = δD/b
3° = δD/500mm
3° * π/180 = δD/500
δD = 3° * π/180 * 500
δD = 26.2mm
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when editing a document, you can open the document directly instead of first running the app and then opening the document.
The correct answer is open File Explorer, select Preview pane from the View tab while we require to edit a document.
How we can open a application for editing?
In Windows 10, open File Explorer, select Preview pane from the View tab. Select a file to be viewed, such as an image, PDF, Word document, Excel sheet, PowerPoint presentation, or other type of file. In the preview pane, the file is displayed.
Hence , we can go to open File Explorer, select Preview pane from the View tab while we require to edit a document.
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Consider a controller for a washing machine as an embedded computer system (as described below). a) What are the inputs devices? b) What are the outputs? c) Name at least two safety features to include and specify what hardware and/or software is needed for each. d) Describe a useful feature which could you add in software without requiring additional hardware. e) Describe two useful energy-saving features which could you add in software if the controller could keep track the time of day. f) Describe a useful feature which could you add in software if the machine included an internet connection. How a washing machine works (from Wikipedia) All the important parts of the clothes washer are electrically controlled, including the inner drum, the valves, the pump, and the heating element. The programmer is like the conductor of an orchestra, switching these things on and off in a sensible sequence that goes something like this: 1. You put your clothes in the machine and detergent either in the machine itself or in a tray up above. 2. You set the program you want and switch on the power. 3. The programmer opens the water valves so hot and cold water enter the machine and fill up the outer and inner drums. The water usually enters at the top and trickles down through the detergent tray, washing any soap there into the machine. 4. The programmer switches off the water valves. 5. The thermostat measures the temperature of the incoming water. If it's too cold, the programmer switches on the heating element. This works just like an electric kettle or water boiler. 6. When the water is hot enough, the programmer makes the inner drum rotate back and forth, sloshing the clothes through the soapy water. 7. The detergent pulls the dirt from your clothes and traps it in the water. 8. The programmer opens a valve so the water drains from both drums. Then it switches on the pump to help empty the water away. 9. The programmer opens the water valves again so clean water enters the drums. 10. The programmer makes the inner drum rotate back and forth so the clean water rinses the clothes. It empties both drums and repeats this process several times to get rid of all the soap. 11. When the clothes are rinsed, the programmer makes the inner drum rotate at really high speed—around
80mph(130 km/h)
. The clothes are flung against the outside edge of the inner drum, but the water they contain is small enough to pass through the drum's tiny holes into the outer drum. Spinning gets your clothes dry using the same idea as a centrifuge. 12. The pump removes any remaining water from the outer drum and the wash cycle comes to an end. 13. You take your clothes out and marvel at how clean they are! 14. But there's still the problem of drying your wet clothes to figure out
The embedded computer system controls the washing machine by programming a sequence of steps that precisely control the water valves, heating element, inner drum rotation, and pump to wash and spin the clothes clean.
a) What are the inputs devices?The inputs devices for the controller of a washing machine would include the detergent tray, the power switch, the program selector, the thermostat, and the heating element.
b) What are the outputs?
The outputs for the controller of a washing machine would include the water valves, the inner drum, the pump, and the high-speed spin of the inner drum.
c) Name at least two safety features to include and specify
Two safety features that could be added to the controller for a washing machine are a temperature monitor and a motor overload protection. The temperature monitor would ensure that the water temperature does not exceed a certain threshold, while the motor overload protection would ensure that the motor does not become overloaded when running at high speeds. Both of these safety features could be implemented with software.
d) Describe a useful feature which could you add in software without requiring additional hardware.
A useful feature that could be added in software without requiring additional hardware is a timer. This timer would allow the user to set the machine to run at a certain time, allowing them to take advantage of lower electricity prices at certain times of the day.
e) Describe two useful energy-saving features which could you add in software if the controller could keep track the time of day
Two useful energy-saving features that could be added in software if the controller could keep track of the time of day are a delayed start and an off-peak washing cycle. The delayed start would allow the user to set the machine to run at a later time, allowing them to take advantage of lower electricity prices at certain times of the day. The off-peak washing cycle would allow the machine to run at a lower power setting and for a longer period of time when electricity prices are lower, resulting in energy savings.
f) Describe a useful feature which could you add in software if the machine included an internet connection
A useful feature that could be added in software if the machine included an internet connection is remote monitoring and control. This would allow the user to monitor and control the washing machine from anywhere in the world, allowing them to start and stop the machine, adjust settings, and receive notifications.
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calculate the total deformation in a 25ft long, 4 in. diameter steel bar hanger that supports a 390 kip load. this bar is also subjected to a change in temperature from 140of before loading to -10of after loading, calculate the change in length due to temperature change. (esteel
The variation in length caused by temperature, according to the supplied statement, is 0.2925 inch.
How would you define the deformation?A alteration in shape put through the application of pressure is referred to as deformation. It is understood that even very small stresses can cause some deformation. When an outside load applied on an item, deformation happens. Crumpling, twisting, pulling, or tearing the object apart may be required to accomplish this.
Length = 25ft = 300 inch
Diameter = 4 inch
Load (P) = 390 kips = 390000lb
Initial temperature = 140°F
Final Temperature = -10°F
ΔT Change in temperature = -10 - 140 = -150°F
Modulus of elasticity E (steel) = 30 * 10⁶ psi
Coefficient of thermal expansion = 0.0000065inch/F°
Change in length due to temperature
= L * ΔT = 300 * 0.0000065 * 150
Change in length = 0.2925 inch
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how often do fire extinguishers need to be inspected
Answer:
Explanation:
Fire extinguishers need to be inspected regularly to ensure that they are in good working condition and ready for use in case of a fire emergency. The frequency of inspections depends on various factors, such as the type of fire extinguisher, the location, and the local regulations and codes.
As a general guideline:
Portable fire extinguishers: Monthly inspections are recommended, and annual maintenance by a certified fire extinguisher service technician is also required.Fixed fire suppression systems: The frequency of inspections may vary depending on the type of system and the local codes, but annual inspections by a licensed fire protection company are typical.It is important to note that fire extinguishers should be inspected more frequently in high-risk or high-traffic areas, such as in a commercial kitchen or near flammable materials. Employers should consult with a fire protection specialist to determine the appropriate inspection schedule for their fire extinguishers.
which command will move the selected file to a location on your computer. select your answer from the list on the right, then click done..
The command to move a file in most operating systems is "mv".
What is operating systems?
Operating system (OS) is a set of software programs that manages the hardware and software resources of a computer. It acts as an intermediary between the user and the computer hardware, and provides a platform for other software applications to run on.
An operating system performs basic tasks such as allocating memory, scheduling tasks, managing input and output (I/O) operations, and managing file systems. It also provides a user interface, allowing users to interact with the computer and run applications.
The command to move a selected file to a location on your computer would be "mv [file name] [destination directory path]".
For example, if you have a file named "file.txt" in your current directory and you want to move it to the "documents" directory, the command would be "mv file.txt ~/documents".
The "mv" command is used to move or rename files or directories in Linux or Unix-based operating systems. The first argument is the name of the file you want to move and the second argument is the destination directory path where you want to move the file.
It's important to note that the "mv" command is permanent, so be careful when using it to move files.
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Which of the following material-specific parameter does the Einstein relationship explicitly describe Temperature Density of states of charge carriers Mobility of charge carriers None of the above
The Einstein relationship explicitly describes the mobility of charge carriers.
The Einstein relationship is a fundamental relationship in solid-state physics that connects the mobility of charge carriers to the temperature. Mobility refers to the ease with which charge carriers, such as electrons or holes, can move through a material.
The Einstein relationship states that the mobility of charge carriers is inversely proportional to the temperature. In other words, as the temperature increases, the mobility of charge carriers decreases. This relationship arises from the thermal energy in a material, which increases with temperature. Thermal energy provides the energy necessary for the charge carriers to overcome obstacles and move through the material. As the temperature increases, the thermal energy also increases, making it more difficult for the charge carriers to move, thus reducing their mobility.
The Einstein relationship provides important information about the behavior of charge carriers in a material, which is crucial in the design of many electronic devices such as transistors, diodes, and solar cells.
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listen to exam instructions which of the following functions are performed by the trusted platform module (tpm)? answer encrypts data on the hard disk drive. generates authentication credentials. creates a hash based on installed system components. performs bulk encryption.
Create a hash based on installed system components
What is tmp?A TMP file is a temporary backup, cache, or other data file created automatically by a software program. It is sometimes created as an invisible file and is often deleted when the program is closed. TMP files may also be created to contain information temporarily while a new file is being generated.Web servers have a directory named /tmp used to store temporary files. Many programs use this /tmp directory for writing temporary data and generally remove the data when it is no longer needed. Otherwise the /tmp directory is cleared when the server restarts.Program and apps can store temporary files (. tmp) on your computer that can take a lot of storage space on your computer. If you are running low on hard drive space, clearing these files is a good way to gain additional disk storage space.To learn more about tmp refers to:
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T/F data anomaly is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions.
The correct answer is True as Data anomaly is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions.
What is Data Anomaly?When all of the database's data are congruent with actual events and circumstances, this is referred to as a data anomaly. A database system has the benefit of being significantly less complex than earlier methods of data handling.The Main advantage is database system over previous data management approaches is that the database system is considerably less complex.What constitutes an abnormality, exactly?Anomaly is a deviation from the norm, a blip on life's screen that is unusual. Pink pups are an anomaly if your breed black dogs and seem to have one that is.
The mentioned statement in question is True.
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your client has hired you to extract details about the port on which the tcp/ip connections are running. you, as a network engineer, have decided to use the netstat utility for this purpose. which of the following commands will you apply to list all current tcp connections and an all listening tcp and udp ports?
netstat -a is a command that can be used to display a list of all active TCP connections as well as listening TCP and UDP ports.
What is the purpose of netstat?The command "netstat" is a networking tool that can also be used to monitor connections over the network and help with troubleshooting and configuration. This command is frequently used for incoming and outgoing connections, port listening, routing tables, and usage statistics. The TCP/IP networking utility Netstat identifies a computer's listening ports and incoming and outgoing network connections with a straightforward set of options. If you're trying to fix malware or figure out a security issue, this data can be very helpful.
To see a straightforward list of all active TCP connections, just run the netstat command. This will display the local IP address (your computer), the foreign IP address (the other computer or network device), their respective port numbers, and the TCP state for each connection.
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during starting of a turbine powerplant using a compressed air starter, a hung start occurred. select the proper procedure.
A hung start occurred when a turbine powerplant was started using a compressed air starter. Turn off the engine.
What does PowerPlant stand for?An industrial facility that uses primary energy to generate electricity is known as a power plant. In order to meet the electrical demands of society, the majority of power plants make use of one or more generators that transform mechanical energy into electrical energy.
The machinery that generates electricity is managed, operated, and maintained by power plant operators. They distribute power among generators and regulate the output of multiple generators using control boards.
An engine is the simplest definition of an aircraft power plant. It has a lot of parts, like cylinders, pistons, and fans, that help make the energy that propels an airplane. A jet engine or a propeller-and-engine combination may serve as the power source.
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Humanity uses an area the size of ___ to grow crops, an area the size of ___ for livestock
Crops are grown in an area the size of South America, and livestock are kept in an area the size of Africa.
What is Humanity ?The human race, which includes everyone on Earth, is humanity. It also refers to the characteristics that make us human, like our capacity for love and compassion, our creativity, and our inability to be a machine or alien.
Humanities comes from the Latin word humanitas, which means "human nature, kindness." All humans are included in the term "humanity," but it can also be used to describe the affection that people frequently have for one another. Awww. However, when we talk about humanity, we might just be referring to individuals as a whole. Your faith in humanity is put to the test when bad things happen. Your sense of humanity is piqued when someone asks for money to feed hungry children.
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The rotation of arm AO about point O is defined by the relation phi = 0.2t3, where phi is expressed in radians and t in seconds. Block B slides along the arm in such a way that its distance from point O is R = 3 - 0.3phi, where R is expressed in feet and t in seconds.
When phi = 0.67 radians determine:
(a) the velovity of block B
(b) the speed of block B
(c) the acceleration of block B
t is expressed in seconds, while R is expressed in feet. a) The velocities of block B are the appropriate choice for phi = 0.67 radians.
What is a distance?Distance is an object's overall motion in a directionless fashion. Regardless of the starting or ending point, distance can be defined as the amount of space an object has covered.
Use the distance equation d = st, which reads "distance equals speed times time," to find the distance.
Here, C1 = 5 and C2 = 10, A = -3, B = 10, and D = 20. The necessary distance is given by the formula d = |10-5|/(-32+102) = 5/109.
t is expressed in seconds, while R is expressed in feet. a) The velocities of block B are the appropriate choice for phi = 0.67 radians.
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A(n) _____ typically occurs when a conductive object makes contact between an energized conductor or circuit part and ground.
The correct answer is electrical shock is typically occurs when a conductive object makes contact between an energized conductor or circuit part and ground.
What is electrical shock?
When an individual comes into contact with both wires of an electrical circuit, one wire of an energized circuit and the ground, or a metallic part that has become energized by contact with an electrical conductor, electrical shock occurs.
Hence, the above phenomenon is electrical shock is the right answer here.
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Which property of real numbers is shown below?
3 + ((-5) + 6) = (3 + (-5)) + 6
commutative property of addition
identity property of multiplication
associative property of addition
commutative property of multiplication
The property of real numbers is shown below is associative property of addition. The correct option is C.
What is associative property of addition?According to the associative property of addition, you can arrange the addends in several ways without changing the result.
According to the commutative property of addition, you can rearrange the addends without altering the result.
When more than two numbers are added together or multiplied, the outcome is always the same, regardless of how the numbers are arranged.
This is known as the associative property. As an illustration, 2 (7 6) = (2 7) 6. 2 + (7 + 6) = (2 + 7) + 6.
Thus, the correct option is C.
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type 7.2e-4 as a floating-point literal with a single digit before and five digits after the decimal point. note: do not use scientific notation.
The response to the question is 0.00072. There is an integer part, a decimal point, a fractional part, and an exponent part in a floating-point literal.
What is a floating-point literal?Numbers with a decimal or exponential part are called floating-point literals. They can be symbolized by: True literals Literals in binary and floating point. Floating-point literals in hexadecimal (only in C)
Floating point literals can be represented in exponential or decimal form. 900, 12, 400, -222, and other fixed integer values are represented by integer literals. with a range of integers). In contrast, floating point literals represent fractional values, such as 25.53, 45.66, 58.66, and so on. We should use the notation f or F as 25.53 to write these literals. Alternative classifications divide literals into as few as four categories—Integer, Character, Boolean, and String—or as many as ten categories—Integer, Real, Backslash, Character, String, NULL, Class, and Invalid).
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show that the linear system ax b has a solution if and only if b can be written as a linear combination of the columns of a.
Only when the equation Ax is b has at least one solution is a vector b a linear combination of the columns of a A.
How many solutions will the linear system ax b have if b is in the column space of a?There are indefinitely many ways to solve the equation Ax = b. There is a non-zero solution to the equation Ax = 0. Null(A) = {0}. The result of a non-zero linear combination of A's columns is 0.Only when the equation Ax = b has at least one solution is a vector b a linear combination of the columns of a matrix A.According to the vector method, Ax is a "linear system" of a1 and a2. This is how linear algebra works fundamentally! There are two steps in a linear combination of the vectors a1 and a2: (1) Divide "scalars" x1 and x2 by the numbers a1 and a2. (2) Increase vectors x1a1.
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a metal has a strength of 134 mpa at its elastic limit and the strain at that point is 0.003. assume the test specimen is 12.8 mm diameter and has 50 mm gage length. what is its modulus of elasticity and its strain energy at the yield point? also, can you define the material type (ductile or brittle) based on the given data?
Its modulus of elasticity and its strain energy at the yield point is 0.669N m
What is its modulus of elasticity?In order to resolve this issue, we must first define each of the provided variables before determining the object's modulus of elasticity. Finally, we will determine the system's net energy after calculating the deformation per unit of elastic volume. Starting now, let's define the variables.
Yield The specimen's metal's strength
S = 134 Mpa
Yield Epsilon el, the specimen's strain, is 0.003.
The test specimen's diameter, d 0, is 12.8 mm.
The specimen's gauge length, L 0, is 50mm.
Intensity of elasticity
E=SepsilonEl E= (414Mpa)/0.002 E=207Gpa
At the elastic limit, the strain energy per unit volume is
S el * epsilon el U el prime = 1 2 U el prime = 1 2.8 (134) (0.003)
U el prime =134kN* m/m 3
Taking into account.
Given that the sample's net strain energy is U el = U el prime (Volume of sample).
Volume of sample, Uet U, equals Uet=U() (Lo)
Uel = (134) ([tex]\pi[/tex]*0.0128/4) (50*10-3)
Uel = 0.669N m
Consequently, the sample's net strain energy is 2.663Nm.
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A man out walking his dog makes one complete pass around a perfectly square city block. He starts at point A and walks clockwise around the block. Let →rAB be the displacement vector from A to B, →rBC be the displacement vector from B to C, etc.
1) Which of the following vectors is equal to →rAB?
a) →rBC only
b) →rCD only
c) →rDA only
d) All of the above
e) None of the above
e) None of the vectors above correspond to rAB. It takes into account the magnitude and direction differences between an object's initial and final positions.
What is a displacement vector?You can see how much the position of the object has changed with a displacement vector. The distance you've traveled and the direction you've traveled are both included in the displacement vector.
A geometric object that encodes both a displacement and a direction is called a displacement vector. An arrow with its tip at the first point and tail at the second is the displacement vector from one point to another. This indicates that it is visually represented as an arrow pointing from the initial position to the final position and that it has a magnitude as well as a direction. Distance is a scalar quantity. "How far out of place an object is" is the meaning of the vector quantity displacement; It is the overall shift in position of the object.
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an engineer wants to design a structure in which the difference in length between a steel beam and an aluminum beam remains at 0.500 m regardless of temperature, for ordinary temperatures. what must the lengths of the beams be?
Answer:
the length will be 1.058
Explanation:
coefficient of linear expansivity of Aluminum, = 25 x 10⁻⁶ ⁰C⁻¹
coefficient of linear expansivity of steel, = 12 x 10⁻⁶ ⁰C⁻¹
Change in length of aluminum; ΔL = **ΔT
Change in length of steel; ΔL = **ΔT
difference in length of Aluminum and steel;
- = 0.55 m, for this difference to remain constant, then ΔL = ΔL
From the equation above, = 0.55 +
Since, ΔL = ΔL, then **ΔT = **ΔT
At constant temperature, the equation becomes;
* = *
Recall;
To calculate the length of the steel beam;
Therefore, the length of the steel beam is 1.058 m