Alumina's strong chemical bonds are the cause of a number of its properties, including its low thermal and electric conductivity and high melting temperature, which makes casting alumina into shapes nearly difficult.
Al is the chemical symbol for aluminium, an element with the atomic number 13 in nature. Al2O3 is the chemical formula for the substance alumina. As a result, the primary distinction between aluminium and alumina is that the former is a chemical element and the latter is a compound that contains aluminium. Pure aluminium lacks significant tensile strength. However, alloying components like manganese, silicon, copper, and magnesium can be used to generate an alloy with qualities that are specifically suited for a certain purpose while also enhancing the strength of aluminium.
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A programmer wants to determine whether a score is within 10 points of a given target. For example, if the target is 50, then the scores 40, 44, 50, 58, and 60 are all within 10 points of the target, while 38 and 61 are not.
Which of the following Boolean expressions will evaluate to true if and only if score is within 10 points of target ?
Selected Answer: [None Given]Answers:
(score ≤ target + 10) AND (target + 10 ≤ score)
(target + 10 ≤ score) AND (score ≤ target - 10)
(score ≤ target - 10) AND (score ≤ target + 10)
(target - 10 ≤ score) AND (score ≤ target + 10)
If and only if the score is within 10 points of the target, the following Boolean expressions will evaluate to true.
(target - 10 ≤ score) AND (score ≤ target + 10)
A logical statement that can only be either TRUE or FALSE is called a Boolean expression. Any form of data may be compared using boolean expressions as long as both portions of the expression use the same fundamental data type. Data can be tested to see if it is more than, equal to, or less than other data.
A Boolean expression can include Boolean information like the following:
the BOOLEAN values (YES and NO, and their synonyms, ON and OFF, and TRUE and FALSE)
variables or formulae in BOOLEAN
Boolean-results-producing functions
Calculated via comparison operators are BOOLEAN values.
Consider the following Boolean statement to be part of your code, for instance. genuine GT 20000
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how do spies use constructive and destructive interference of waves?
When two waves cross each other in a way that it combine to form a larger wave, this is known as constructive interference.When waves overlap in a way that they cancel one another out, destructive interference results.
What practical applications of destructive interference exist?Destructive interference is a technique used by engineers and scientists to lower levels of background noise and sound.The contemporary electronic automobile muffler is one illustration of this.The sound produced by this gadget, which senses the sound traveling down the exhaust pipe, has the opposite phase to the original sound.
How do waves become beneficial or harmful?Backwashes from destructive waves are more powerful than swashes.Erosion results from the powerful backwash pulling soil away from the beach and into the water.Contrarily, constructive waves are low intensity waves that cause material to accumulate along the shoreline.
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Dirty headlights can reduce visibility up to 90%. True or False
When the windshield wipers are in operation, North Carolina law mandates the usage of Dirty headlights. 90% less sight is possible when headlights are dirty. When driving through snow, using cruise control can help.
Can headlight haze cut visibility by up to 90%?90% less sight is possible when headlights are dirty. 3. When driving in the snow, cruise control can aid with control.
How much can dim headlights affect visibility?The light decrease caused by headlamp dirt was found to typically be between 10% and 20%, even in dry weather on seemingly clear roadways. Few automobiles have light reductions below 50% on slushy (bed) roads.
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what is the key to preventing accidents in a welding shop
Answer: The key to prevent accidents in a welding shop are: Necessary protection must be taken while welding process otherwise it will harm the welder. Safety precautions must be taken. The safety precautions are mentioned on the manual of every equipment.
Give the complex number that corresponds to the phasor representation of the following time- harmonic functions. (a) F(t)3sin( 2) (b) G(t)--2cos(wt) (c) H (t)-4 cos(60:t-r/4) (d) E(t)4sin ot +cos
3ei2 (b) -2eiωt (c) -4ei(ωt-π/4) (d) 4eiωt +ei0 is the complex number that corresponds to the phasor representation of the following time- harmonic functions.
What is phasor?
A phasor is a complex number that represents a sinusoid with a certain frequency and magnitude. It is a mathematical expression of the form Aexp(jωt), where A is the magnitude and ω is the angular frequency, and j is the imaginary number. Phasor representation is a convenient way to represent sinusoidal signals since it reduces the amount of information needed to describe the signal. It is useful in many areas of electrical engineering, such as analysis of AC circuits, signal processing, and electromagnetic simulations. Phasor diagrams can be used to represent the relationship between two or more signals.
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Two 16-year-olds have challenged three 12-year olds to tug-of-war. They discover that the two teams are very evenly matched, and the rope does not move in either direction. The older contestants each exert a force of 75 lbs on the rope. Determine the following:a) Draw the free-body diagram of the entire rope.b) How much force is exerted by each of the younger contestants if they share the force equally?c) What is the force in segments a, b, c and d of the rope? (Hint: Draw the free-body diagrams to represent each of the segments)
The force excreted by each of the youngsters is found using equilibrium and is equal to 50lbs. And the force in each segment is shown in the free body diagram. Each of the segment is subjected to tensile forces.
What is force?A push or a pull that alters or tends to alter an object's uniform motion or state of rest, as well as altering an object's direction or shape, is referred to as force. It either accelerates objects or increases the pressure they are under. The interaction between two objects is, to put it simply, a push or a pull on the object. It is the fundamental driver of motion starting from stillness. It's measured in "Newtons" (N). Newton calculates the amount of force necessary to move, accelerate, or speed up an object. F = m.a is the fundamental formula, where m is the mass in kilograms and an is the acceleration in m/sec2. The unit of measurement could also be pounds.To know more about force visit:
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Answer the following question by entering the numeric value with appropriate units. If the length of one side of a square is 12.0 m, what is the perimeter of the square? Express the perimeter to three significant figures and include the appropriate units. perimeter =
A square has a 48 m perimeter if one of its sides is 12.0 m long. P = 4 side is a formula for calculating a square's perimeter. The side length of the square is determined by rearranging the previous formula to side = P/4 when the perimeter is known.
So, by multiplying the perimeter by 4, it is possible to determine the length of a square's sides. The square's perimeter is its four sides because all of its sides are equal. The square's 12 cm perimeter is what we are given, hence the measurement is the perimeter. The sum of the lengths of each side makes up a square's perimeter. So, summing the lengths of a square's four sides gives us the perimeter of the unit square. Each of an object's sides.
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You are reaching an intersection, and trees block your view to the side for the last 100 feet before crossing. The intersection is considered:
"open"
"blind"
"blocked"
A concealed hazard may be present if your line of sight is impeded in the intersection or beyond. Adjust your vehicle's location or widen the following gap if other cars are obstructing your view while you are traveling through traffic so you can see to react.
If you are unable to see around an obstruction, you must slow down and be prepared to change positions until you can regain a clear line of sight to your intended route and target region. In a city or other metropolitan setting, you should always be watching for at least two blocks or two traffic signals ahead. You should always look at least three blocks or three traffic lights ahead when driving in a suburban region. You need to keep an eye at least a quarter of a mile ahead when driving in a rural area.
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Consider a wave that is traveling in the positive z direction, which is incident on a junction with another transmission line. The wave is on transmission line 1 in the region z 0, with characteristic impedance Zo1, and to the right of the junction (z> 0) is transmission line 2 with characteristic impedance Zo2. Assume for simplicity that the incident voltage wave has a voltage of 1.0 [V]. Solve for the reflected and transmitted voltages and currents on both sides of the junction. From this, show that the total current is continuous at the junction. Also show that the total power flowing in the z direction is the same on either side of the junction. Recall that the voltage transmission coefficient is related to the voltage reflection coefficient by Note that the total voltage and current on the left line (ine1) are found from summing the voltage and current for the incident and reflected waves, while the total voltage and current on the right line (line 2) are those of the transmitted wave. Also, note that power is given by P-VI, where Vand I are the total voltage and current in the time domain.
The correct answer is According to P = V I and P = V/I, the source's power (P) input to the circuit is determined.
P = E/t is the equation, where P stands for power, E for energy, and t for time in seconds. According to this equation, power is defined as the amount of energy consumed per unit of time. Ohm's Law states that the electrical current in a circuit may be estimated by dividing the voltage by the resistance in the first iteration of the calculation, I = V/R. In other words, the voltage and resistance are inversely related to the current and directly proportional to each other. Ohm's Law describes the connection between current, voltage, and resistance. This asserts that, given the temperature is constant, the current flowing in a circuit is directly proportional to the applied voltage and inversely proportional to the circuit resistance.
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phototransistors are becoming more common than photoresistors because silicon is more resistant to high temperatures and airborne contamination. this makes it ideal for new outdoor lighting control applications or to replace failed photoresistors. T/F
True, phototransistors are becoming more common than photoresistors because silicon is more resistant to high temperatures and airborne contamination.
What is a phototransistor?Phototransistors are electronic switching and power amplification components that rely on light to operate. When light hits the junction, it causes a return current proportional to its brightness. Phototransistors are often used to capture pulses of light and convert them into digital electrical signals.
Phototransistors have several key advantages that set them apart from other optical sensors. Some of them are listed below
A phototransistor produces a higher current than a photodiode.Phototransistors are relatively cheap, simple, and small enough to fit several on a single integrated computer chip. Phototransistors are very fast and can output almost instantly.A phototransistor produces a voltage that a photoresistor cannot produce.To know more about phototransistors, visit :
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how does the process of deforestation affect soil?
Deforestation is When forests are destroyed, the land is left unprotected and exposed to the weather, making it susceptible to being washed and blown away.
What impact does forest loss have on the planet?Carbon dioxide is absorbed and stored by trees. When forests are cut down or even just disturbed, carbon dioxide as well as other greenhouse gases are released. Around 10% of global warming is caused by the destruction and loss of forests. If we don't put an end to deforestation, there is just no way that we can combat the climate issue.
What are the causes of deforestation?The large-scale removal removing trees in forests (or other places) to make way for human activity is known as deforestation. It poses a major environmental risk since it may lead to the extinction of species, destruction of natural ecosystems, and disturbances in the water.
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which type of shoring should be used to prevent vertical movement of a vehicle when its tires or suspension system cannot withstand g-loads without failure?
The correct answer is rolling shoring type of shoring should be used to prevent vertical movement of a vehicle when its tires or suspension system cannot withstand g-loads without failure.
To prevent damage to the aircraft's cargo floor, loading ramps, and airport parking lots, use rolling shoring. When transporting a vehicle across surfaces, this kind of shoring is employed to prevent damage (Figure 6-3). The deployment of the organic/attached troops by the deploying units is planned, organised, and carried out. Minimizing the amount of time a moving unit is not in use must be a top priority. used to prevent damage to the aircraft floor, aircraft ramps, and airfield parking ramps. - Lay down on the aircraft's ramp and floor when loading or unloading cargo. -Place throughout the whole path taken by the vehicle.
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select a design tool. a design tool is used to design a program before actually typing the code into your ide. select all design tools.
Programs are compiled using CASE tools to check for logical flaws. One of the six steps in programming is coding.
A software package known as a computer-aided software engineering (CASE) tool supports the design and implementation of information systems. It may be used to record database designs and offer crucial support for preserving consistency in designs. Computer-based CASE tools are products that support one or more SDLC phases. Many of the design and development issues that are present in projects created via manual approaches are reduced or eliminated with the use of these technologies. It offers a wide variety of extensions and community support due to its popularity as an open source database management system. Because of all of this, MySQL is a versatile tool with various applications.
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They system that control such boy process as harmonies balance’ temperature and width of blot vessels is called the
The system that controls processes such as balance of hormones, temperature, and the width of blood vessels is called the Autonomic Nervous System. This system is responsible for regulating the body's internal organs and maintaining homeostasis. It is divided into two branches: the sympathetic nervous system, which is responsible for the "fight or flight" response, and the parasympathetic nervous system, which is responsible for the "rest and digest" response. The autonomic nervous system controls functions such as blood pressure, heart rate, and digestion, among others.
what digit password may be set to prevent unauthorized operation of the yaesu ft-70dr?
A 4-digit password may be set to prevent unauthorized operation of the transceiver without permission.
what digit password may be set to prevent unauthorized operation ?It is a system created to stop unapproved access to or from a private network. So, Option 4 is the right choice. A firewall can be put into place as either hardware, software, or a hybrid of the two.
programme firewall: You can help protect your computer from unauthorised data entry and exit by installing a software firewall on it. Securing only the machine on which it is installed is the main objective of a software firewall. Many antivirus scanners come with a software firewall as standard equipment.
taking or requesting to "borrow" another employee's badge. Following another person through access doors in an attempt to "piggyback." using a colleague's password or login information to access a computer.
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Maximize the Revenue There are n types of items in a shop, where the number of items of type i is denoted by quantity[i]. The price of the items is determined dynamically, where the price of the i th item is equal to the remaining number of items of type i . There are m customers in line to buy the items from the shop, and each customer will buy exactly one item of any type. The shopkeeper, being greedy, trfes to sell the items in a way that maximises revenue. Find the maximum amount the shopkeeper can earn by selling exactly m items to the customers optimally.
Subtract your costs from the possible sales and supply of your products to arrive at your maximum amount.
How do you calculate the maximum profit made?Subtract your costs from the possible sales and supply of your products to arrive at your maximum profit.In the event that increasing income is similar,In other words, by setting marginal revenue to zero, which occurs at the maximum level of output, one may find the quantity and price that maximises profits. When the total revenue curve reaches its maximum value, marginal revenue is equal to zero.The amount where the disparity between total revenue and total cost is greatest will yield the highest profit. A completely competitive company, such as the raspberry farm, can determine the amount of output that will yield the maximum level of profit based on its total revenue and total cost curves.To learn more about maximum amount refer to:
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find the moment of inertia of a t section having a web and flang of 120 mm and 30mm about an x-x axis passing through the center of gravity
The moment of inertia of a t-section with a web and flang of 120 mm and 30 mm, respectively, about an x-x axis passing through the centre of gravity is: [tex]16 \mathrm{~cm}^4[/tex]
What is gravity?All the planets are maintained in their orbits around the sun by the force of gravity. Gravity comes in only one variety. There aren't any additional variations of gravity in the natural world. This implies that, depending on the masses of the two bodies and the separation between their centers, there is only one kind of gravitational force acting to draw them together. The weakest force known to exist in nature is gravity, which is a form of central force. Gravity is the force that a planet (or other entity) applies to other objects to pull them toward its centre.Second moment of area (M.I. ), also known as the moment of inertia of an area, is the total of the second moments of all elementary areas about an axis.
[tex]$\mathrm{I}=\sum\left(\mathrm{A} \times \mathrm{d}^2\right)[/tex]
Unit: [tex]$\mathrm{m}^4$[/tex]or [tex]$\mathrm{mm}^4$[/tex] or [tex]$\mathrm{cm}^4$[/tex]
Calculation:
Given,
b=3 cm, d=4 cm
A rectangle's moment of inertia about an axis parallel to its width and passing through its centre of gravity is
[tex]$& \mathrm{I}_{\mathrm{XX}}=\frac{\mathrm{bd}^3}{12} \\[/tex]
[tex]$& \mathrm{I}_{\mathrm{XX}}=\frac{3 \times 4^3}{12}=16 \\[/tex]
[tex]$& \therefore \mathrm{I}_{\mathrm{XX}}=16 \mathrm{~cm}^4[/tex]
The complete question is:
Find the moment of inertia of a t section having a web and flang of 120 mm and 30mm about an x-x axis passing through the center of gravity
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Consider the following class definition. Each object of the class Item will store the item’s name as itemName, the item’s regular price, in dollars, as regPrice, and the discount that is applied to the regular price when the item is on sale as discountPercent. For example, a discount of 15% is stored in discountPercent as 0.15.
public class Item
{
private String itemName;
private double regPrice;
private double discountPercent;
public Item (String name, double price, double discount)
{
itemName = name;
regPrice = price;
discountPercent = discount;
}
public Item (String name, double price)
{
itemName = name;
regPrice = price;
discountPercent = 0.25;
}
/* Other methods not shown */
}
Which of the following code segments, found in a class other than Item, can be used to create an item with a regular price of $10 and a discount of 25% ?
Item b = new Item("blanket", 10.0, 0.25); // this is I
Item b = new Item("blanket", 10.0); // this is II
Item b = new Item("blanket", 0.25, 10.0); // this is III
A. I only
B. II only
C. III only
D. I and II only
E. I, II, and III
I and II only of the following code segments, found in a class other than Item, can be used to create an item with a regular price of $10 and a discount of 25%.
What is code?
Code is a set of instructions written in a programming language that tells a computer what actions to perform in order to achieve a desired outcome. It is used to create software applications, websites, and mobile apps. It is developed using a specific programming language and is made up of lines of code that are executed by a computer. Code is written with the use of an editor and is compiled, or translated, into a language that can be read and executed by a computer. Code can be used to solve complex problems, automate processes, and create innovative and powerful solutions. Code is a powerful tool that can be used to create amazing applications, websites and mobile apps.
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which of the following types of recurring problems tend to get masked by buffer inventory? multiple select question. equipment breakdowns unreliable vendors engineering changes scheduling issues quality defects
Think about a wholesaler and manufacturer of jams and jellies. To prepare for supply delays, they store extra supplies of raw materials like fruit and sugar on hand.
This serves as their backup supply. In the standard formula, buffer stock is determined as the product of the maximum daily usage (the maximum number of units sold in one day) and the maximum lead time (the length of time it has taken your supplier to ship the stock) minus the product of the average daily usage (the average number of units sold in 1 day). A surplus of raw materials is maintained on hand as a buffer stock to protect against any unanticipated inventory shortages prior to production.
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Anu copied the formula =$A$3*$B$1 from cell A1 to B5. How will the formula look like in
cell B5?
(a) =$B$7*$C$5 (b) =$C$7*$B$5 (c) =$C$5*$B$7 (d) =$A$3*$B$1
Answer:
=$A$3*$B$1
Explanation:
Since cells involved in the formula are absolute row and column because of the $ sign on the row letter and column number for both, this formula will not changed when it is copied to any new location on the worksheet
lab scopes are being discussed. technician a says the lab scope displays the resistance of a sensor as it changes over time. technician b says some lab scopes can display two waveforms at the same time. who is correct?
Only technician B is correct who states that some lab scopes display two waveforms at the same time.
A lab scope conquers the issues of a rapidly changing signal by providing you with both time and voltage measurements on a display screen. A lab scope displays a snapshot of voltage levels, voltage changes, and the frequency (speed) of these changes.
Since some of the lab scopes can show two waveforms at the same time; so technician B is correct who states that some lab scopes display two waveforms at the same time. While technician A is not correct to state that lab scope displays the resistance of a sensor as it changes over time.
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What type of information is commonly included in the owner's manual that would be a benefit to the service technician?
O Maintenance items specifications
O Tire pressure monitoring system reset procedures
O Maintenance reminder light reset procedures
O All of the above
Maintenance reminder light reset procedures is a benefit to the service technician.
What is meant by technician?
Technicians are knowledgeable workers who are found in practically every field.Different systems and pieces of equipment are repaired, installed, replaced, and serviced. Technicians should be able to comprehend instructions and speak well because they frequently collaborate with other skilled individuals.A person knowledgeable in a specific technical subject or in mechanical or industrial processes. a person employed to perform practical work in a laboratory, technical school, or scientific facility.An individual with expertise in a technical procedure is referred to as a technician.It can take time, but in the end, it is a terrific feeling to find a solution to someone else's difficulty. It's Hard Work, But RewardingTo learn more about technician refer to
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Maintenance reminder light reset procedures is a benefit to the service technician.
What is meant by technician?Technicians are knowledgeable workers who are found in practically every field.
Different systems and pieces of equipment are repaired, installed, replaced, and serviced.
Technicians should be able to comprehend instructions and speak well because they frequently collaborate with other skilled individuals.
A person knowledgeable in a specific technical subject or in mechanical or industrial processes. a person employed to perform practical work in a laboratory, technical school, or scientific facility.
An individual with expertise in a technical procedure is referred to as a technician.
It can take time, but in the end, it is a terrific feeling to find a solution to someone else's difficulty. It's Hard Work, But Rewarding
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A first class lever in static equilibrium has a 50-lb resistance force and 15-lb effort force. The lever’s effort force is located 4 ft from the fulcrum. Calculate the length from the fulcrum to the resistance force.
a. 1.2 feet
b. 13.3 feet
c. 4 feet
d. 3.33 feet
In static equilibrium, a first-class lever has a resistance force of 50 lb and an effort force of 15 lb. The effort force of the lever is located 4 feet from the fulcrum. The length from the fulcrum to the resistance force is 1.2 feet.
AMA=F[tex]_{R}[/tex]/F[tex]_{E}[/tex]
=50 lb/15 lb
AMA=10/3≅3.3:1
[tex]M_{E} =M_{R}[/tex]
[tex]F_{E} *D_{E} =F_{R} *D_{R}[/tex]
(15 lb)*(4 ft)=(50 lb)D[tex]_{R}[/tex]
D[tex]_{R}[/tex]=(6/5)ft=1.2 ft
Statics is the branch of mechanics that studies forces acting on bodies in static or dynamic equilibrium. Static equilibrium is a state in which bodies are at rest; dynamic equilibrium is a state in which bodies move at a constant velocity (rectilinear motion). In both cases, the sum of the forces acting on them is zero.
Statics is the branch of mechanics that studies forces acting on bodies in static or dynamic equilibrium. Static equilibrium is a state in which bodies are at rest; dynamic equilibrium is a state in which bodies move at a constant velocity (rectilinear motion). In both cases, the sum of the forces acting on them is zero. Consider the following scenario: an athlete is standing on the ground.
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A surveyor wants to find the distance across a pond (see figure). The bearing from A to B is N 32° W. The surveyor walks 50 meters from A to C, and at the point C the bearing to B is N 68° W.
(a) Find the bearing from A to C.
(b) Find the distance from A to B.
The triangulation method is the process used to determine the width of a large river.
Find the bearing from A to C. and find the distance from A to B?From the starting point to the finishing point, draw a line. Take a clockwise measurement of the angle between this line and the north line. As an illustration, the bearing from A to B is 100°. The angle between North and B is shown here.
The length of the river is equal to the tangent of the angle multiplied by the distance between the two points on your side of the waterway. Any two points on your riverbank can be used to solve this as well.
By deducting the bearing angle from 90 degrees, you can convert the bearing angle to degrees of a standard angle. If your final result is negative, add 360°; if it is positive but more than 360°, deduct 360°.
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start access. open the support ac financial services database from the data files. (if you did not previously complete the exercise, see your instructor for a copy of the modified database.)
A computer system can be accessed in one of three ways: Direct access, sequential indexing, and sequential access
How can I search a database in Access for data?Click Find in the Find group under the Home tab. The Find tab is chosen, and the Find and Replace dialogue box displays. Enter the value you wish to search for in the Find What box. Click the relevant link in the Look In list to alter the search field you wish to use or to search the full underlying table.A computer system can be accessed in one of three ways: Direct access, sequential indexing, and sequential access. It is the simplest method of access. One record at a time, the information in the data file is processed in sequence.To learn more about data files refer to:
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Which of the following is static characteristics of measurement?
Unwanted static traits in measurement systems include drift, static inaccuracy, dead zone, and non-linearity.
Which one of the following does not describe a measurement system's static characteristics?
Explanation:Sincerity is not a fixed quality.It is an element of an instrument's dynamic.In terms of measurements, fidelity relates to how accurate a number is when compared to a quantity that hasn't experienced any dynamic mistakes.
What qualities does measuring have?It offers a definition for each of the five key attributes of a measuring device: scale length, sensitivity, accuracy, "finesse," and response time.
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most human injuries in motor vehicle crashes result from
A second collision between the people and the vehicle causes the majority of human injuries in car accidents.
What causes auto accidents the most frequently?Driver inattention or distraction is the most frequent factor leading to auto accidents. Driver inattention or distraction is the most frequent factor leading to auto accidents.
In just a few inches of water, can a driver lose control of their car?The water can swiftly sweep away both you and the car. The majority of passenger automobiles will start losing control and maybe stalling when six inches of water gets to the bottom of them. Many cars can float in a foot of water. Most cars, especially sport utility vehicles (SUVs) and pickup trucks, can be carried away by rushing water two feet deep.
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A tape recorder company manufacture model A, B and C with profit contribution per unit R. 15, R. 40 and R. 60 repectively. The weekly minimum requirement for Model A i 25 unit, for model B i 130 unit and for Model C i 55 unit. A dozen of unit of model A require 4 hr. For manufacturing, 3 hr. For aembling and 1 hr. For packaging. The correponding figure for a dozen unit of model B are 2. 5, 4 and 2 and for a dozen unit of model C are 6, 9 and 4. The company ha available 130 hr. For manufacturing, 170 hr. For aembling and 52 hr. For packaging during coming week. Formulate thi problem a an LP model o a to maximize the total profit to the company
Let the number of tape recorder for model A be x1
Let the number of tape recorder for model B be x2
Let the number of tape recorder for model C be x3.
Let the maximum profit be Z
Which tape recorder is best?TASCAM.Zoom.Olympus and Sony.HomderFun.Zoom. Sony.
stereo recorder DR-05X Wireless digital sound recorder from ZHN.Digital voice recorder ICD-BX-140, model number V415131BU000.Mono Portable Voice Recorder ICD-PX370 H2N.
Do tape recorders still get created today?If you're seeking for something completely unique, there are now just two firms that continuously create reel-to-reel sound records, one was in Pennsylvania and one in France.These recorders are still available in certain larger local libraries and archives, but they are still quite rare.
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A biomedical engineer poked some sensors into a single neuron (nerve cell) in a giant squid to
measure its electrical activity. The voltage signals coming out of the neuron are graphed below.
a) What is the approximate frequency of this signal in this time window? Show your
calculations.
b) How would the graph look different if the frequency was increased? Decreased?
A neurotransmitter, or chemical, is released by a presynaptic neuron (i.e., the sending neuron) and binds to a receptor on the surface of the postsynaptic neuron (i.e., the receiving neuron), which is the receiving neuron. Presynaptic terminals, which may branch to connect with numerous postsynaptic neurons, release neurotransmitters.
What is the Signal Transmission Within Nerve Cells ?Voltage differentials (also known as potentials) between the interior and exterior of the cell serve as the foundation for the signal-transmission mechanism within neurons. The most significant ions are calcium (Ca2+), potassium (K+), sodium (Na+), and chloride (Cl). This membrane potential is caused by the uneven distribution of electrically charged particles, or ions. Through certain protein channels in the cell membrane, ions move into and out of the cell. Neurotransmitters or modifications in the cell's membrane potential cause the channels to "open" or "shut." The ensuing redistribution of electric charge could change the voltage difference across the membrane. Depolarization is the process of reducing the voltage difference. An action potential, or impulse, will move along the neuron if depolarization rises over a particular threshold.It is prevented from propagating in any other direction except toward the axon tip by a number of processes. "Firing" is another word for the process of creating an action potential.To Learn more About neurotransmitter refer To:
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kg The Reynolds number, PVD/u is a very important parameter in fluid mechanics. Determine its value for ethyl alcohol flowing at a velocity of 2 m/s through a 5-in.-diameter pipe. Use u = 1.19 x 10-3 N.S and p = 789 m2 m3 PVD/=
The Reynolds number is used to get an understanding of the interaction between viscous forces, which cause the fluid to cease flowing because of its viscosity, and inertial forces, which keep moving according to Newton's first law - an item in motion continues in motion - in fluid flow.
By calculating the ratio of inertial and viscous forces, the Reynolds number (Re) can be used to forecast flow patterns in various fluid flow scenarios. Laminar (sheet-like) flow tends to dominate flows at low Reynolds numbers, whereas turbulent flow tends to dominate at high Reynolds numbers. A dimensionless metric called the Reynolds number makes it easier to forecast the behavior of flows. Laminar flow is indicated by a low Reynolds number, while turbulent flow.
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