The duty cycle of the pulse waveform is 33.33%.
A pulse waveform is a type of signal that consists of a series of pulses, each of which has a specific duration and amplitude. The duty cycle of a pulse waveform is the percentage of time during which the signal is in its active or "on" state. In other words, it is the ratio of the duration of the on-time to the total time period of one cycle.
To calculate the duty cycle of a pulse waveform with an on-time of 150 μs and an off-time of 300 μs, we first need to find the total time period of one cycle. This is simply the sum of the on-time and the off-time, which in this case is 150 μs + 300 μs = 450 μs.
Next, we divide the on-time by the total time period of one cycle and multiply the result by 100 to express it as a percentage. The formula for duty cycle is:
Duty cycle = (on-time / (on-time + off-time)) x 100
Substituting the values, we get:
Duty cycle = (150 μs / 450 μs) x 100
Simplifying the expression, we get:
Duty cycle = 0.3333 x 100
Duty cycle = 33.33%
Therefore, the duty cycle of the pulse waveform is 33.33%. This means that the signal is on for 33.33% of the time and off for the remaining 66.67% of the time during one cycle. The duty cycle is an important parameter of a pulse waveform as it determines the amount of power and energy delivered by the signal.
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what are two common features of most modern plastics?
Two common features of most modern plastics are that they are lightweight and durable.
This is because modern plastics are often made from synthetic materials that are designed to be strong and resistant to damage while also being easy to handle and transport. Another feature of modern plastics is that they are often resistant to heat, chemicals, and other forms of damage. This makes them ideal for use in a variety of applications, from packaging materials to construction materials.
Additionally, modern plastics are often designed to be flexible and moldable, allowing them to be easily shaped and formed into a wide variety of shapes and sizes. Overall, these features make modern plastics an essential part of many modern products and technologies.
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18) Technician A says that adjustable wrenches should be used when
torquing fasteners. Technician B says that adjustable wrenches can round
the edges of fasteners. Which technician is correct?
A) Technician A only
B) Technician B only
O C) Both technicians
D) Neither technician
All of these are part of the seat belt assembly EXCEPT the:
O latch plate
O D-ring
O retractor.
O cushion
The evaporator section of a refrigeration unit consists of thin-walled, 10-mm-diameter tubes through which refrigerant passes at a temperature of −18°C. Air is cooled as it fows over the tubes, maintaining a surface convection coeffcient of 100 W/m2 ⋅ K, and is subsequently routed to the refrigerator compartment. (a) For the foregoing conditions and an air temperature of −3°C, what is the rate at which heat is extracted from the air per unit tube length? (b) If the refrigerator’s defrost unit malfunctions, frost will slowly accumulate on the outer tube surface. Assess the effect of frost formation on the cooling capacity of a tube for frost layer thicknesses in the range 0 ≤δ ≤ 4 mm. Frost may be assumed to have a thermal conductivity of 0.4 W/m ⋅ K. (c) The refrigerator is disconnected after the defrost unit malfunctions and a 2-mm-thick layer of frost has formed. If the tubes are in ambient air for which T[infinity] = 20°C and natural convection maintains a convection coeffcient of 2 W/m2 ⋅ K, how long will it take for the frost to melt? The frost may be assumed to have a mass density of 700 kg/m3 and a latent heat of fusion of 334 kJ/kg
sin x +√3 coax= √2
Answer:
The two values of x are 2n*pi + pi/12 and 2n*pi -5pi/12
Explanation:
The given equation is
Sin x +√3 Cosx= √2
Upon dividing the equation by 2 we get
\(\frac{1}{2}Sinx + \frac{\sqrt{3} }{2}Cosx = \frac{\sqrt{2} }{2}\)
Sin(\(\frac{pi}{6}\))*Sinx + Cos(\(\frac{pi}{6}\))*Cosx = \(\frac{1}{\sqrt{2} }\)
This makes the formula of
CosACosB + SinASinB = Cos(A-B)
Cos(x-\(\frac{pi}{6}\)) = \(\frac{1}{\sqrt{2} }\)
cos(x- pi/6) = cos(pi/4)
upon writing the general equation we get
x-pi/6 = 2n*pi ± pi/4
x = 2n*pi ± pi/4 -pi/6
so we will have two solutions
x = 2n*pi + pi/4 -pi/6
= 2n*pi + pi/12
and
x = 2n*pi - pi/4 -pi/6
= 2n*pi -5pi/12
Therefore the two values of x are 2n*pi + pi/12 and 2n*pi -5pi/12.
Now, you get a turn to practice writing a short program in Scratch. Try to re-create the program that was shown that turns the sprite in a circle. After you have completed that activity, see if you can make one of the improvements suggested. For example, you can try adding a sound. If you run into problems, think about some of the creative problem-solving techniques that were discussed.
When complete, briefly comment on challenges or breakthroughs you encountered while completing the guided practice activity.
Pls help im giving 100 points for this i have this due in minutes
Answer:
u need to plan it out
Explanation:
u need to plan it out
Answer:
use the turn 1 degrees option and put a repeat loop on it
Explanation:
u can add sound in ur loop
Determine the capacity of the lane group described in Problem 10-4 if the effective green time for this movement is 35 sec and the total cycle length is 60 sec. pron 4:
Determine the adjusted saturation flow rate for a lane group comprised of one lane for the through movement, under the following conditions: Base rate = 1900 pc/h/ln Lane width = 11 ft
Heavy vehicles = 4% of the traffic stream
Approach grade = + 3%
No on-street parking
No bus stops Bicycle and pedestrian traffic conflicting with this lane group is negligible
Intersection is in a central business district
If the effective green time for this movement is 35 sec and the total cycle length is 60 sec, the adjusted saturation flow rate for the lane group is approximately 2345.28 pc/h/ln.
Using the above conditions, we must compute the adjusted saturation flow rate (qadj) in order to ascertain the lane group's capacity.
The adjustment factor for heavy vehicles is given by:
FHV = 1 + (0.04 * HV)
FHV = 1 + (0.04 * 4) = 1.16
The adjustment factor for approach grade (FG) is given by:
FG = 1 + (0.02 * G)
FG = 1 + (0.02 * 3) = 1.06
The adjusted saturation flow rate (qadj) is given by:
qadj = qbase * FHV * FG
qadj = 1900 * 1.16 * 1.06 = 2345.28 pc/h/ln
Thus, the adjusted saturation flow rate for the lane group is approximately 2345.28 pc/h/ln.
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All of the following are advantages of using a pressure transducer rather than a vacuum gauge EXCEPT:
Question:
All of the following are advantages of using a pressure transducer rather than a vacuum gauge EXCEPT:
A. greater accuracy.
B. easier identification of the cylinder.
C. measuring higher pressures.
D. ability to see the levels graphically
Answer:
The correct answer is D) ability to see the levels graphically
Explanation:
The above question derives from the Rudiments of Automotive Technology.
The function of the pressure transducer is to enable the diagnostic who is testing the engine vacuum to detect the cylinder with a faulty vacuum.
The pressure transducer does allow its user to see the vacuum graphically NOT the levels.
Cheers.
For a series circuit, what can you say about the magnitude of equivalent series resistance with respect to the magnitude of the individual resistors, i.e. is it equal, larger or smaller? Use a complete sentence for your answer. (2 points) 4. For the voltage divider circuit shown, calculate the value for resistor R2 such that the voltage across resistor R2, i.e. Vr2 = R1 V2 V2 = 2.4 V. (4 points) 1.2kohm vs R2 R2 = 12V R1 R 5. For the adjacent voltage divider circuit with R R2 resistance values in terms of resistance value R, determine the voltage across resistor R4, R3 i.e. VR4- (2 points) Vs 12V R R4 3R VR4
For a series circuit, the magnitude of the equivalent series resistance is equal to the sum of the magnitudes of the individual resistors.
How We Proved?In a series circuit, the individual resistors are connected one after the other, forming a single path for the flow of electric current. The total resistance in a series circuit is equal to the sum of the resistances of each individual resistor.
When resistors are connected in series, the current passing through each resistor is the same. This is because there is only one path for the current to flow, and the current encounters each resistor in sequence.
According to Ohm's Law (V = I * R), the voltage drop across a resistor in a series circuit is directly proportional to its resistance.
Therefore, the total voltage across the series circuit is the sum of the voltage drops across each individual resistor.
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Explain the conditions under which galvanic corrosion occurs
Answer:
Explanation:
Galvanic corrosion occurs when two dissimilar metals are immersed in a conductive solution and are electrically connected. One metal (the cathode) is protected, whilst the other (the anode) is corroded. The rate of attack on the anode is accelerated, compared to the rate when the metal is uncoupled.
5195 - To maintain altitude during a turn, the angle of attack must be increased to compensate for the decrease in the:-forces opposing the resultant component of drag- vertical component of lift- horizontal component of lift
To maintain altitude during a turn, the angle of attack must be increased to compensate for the decrease in the horizontal component of lift.
As an aircraft turns, some of the lift that was previously providing a vertical component is redirected to provide a horizontal component to change direction. This means that less lift is available to maintain altitude, so the angle of attack must be increased to generate more lift to compensate for this loss. It is important to note that the angle of attack should not be increased too much as this can lead to a stall.
To maintain altitude during a turn, the angle of attack must be increased to compensate for the decrease in the vertical component of lift.
Here's a step-by-step explanation:
1. When an aircraft is in a turn, its lift is divided into two components: vertical and horizontal.
2. The vertical component of lift counteracts the aircraft's weight, helping it maintain altitude.
3. The horizontal component of lift is responsible for pulling the aircraft inwards during the turn.
4. During a turn, the vertical component of lift decreases because some of the lift force is now being used for the horizontal component.
5. To maintain altitude, the pilot must increase the angle of attack, which increases the overall lift generated by the wings.
6. This increase in overall lift restores the vertical component of lift to a level sufficient to maintain altitude during the turn.
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The term route of entry on an SDS refers to the way a _____ enters the body
Answer:
No matter what u post on a football page, some fatherless dude will either say "pessi" or "penaldo"
What is the efficiency of the following algorithm? Justify your answer through a
mathematical prove.
int i, j;
System.out.print("Enter a number >
");
int n = scan.nextInt();
for (i = 0; i < 100;i++) {
for (j = 0; j < 100;j++) {
if (j == 50)
Write an algorithm that takes O(log n).
Efficiency of the algorithm is O(1)Algorithm efficiency is the amount of time and space it takes to solve a given problem. The efficiency of an algorithm is determined by the total number of operations it executes in the worst-case scenario. A mathematical proof will be presented to support this result.
As a result, we may compute the efficiency of the given algorithm by counting the number of operations required to execute the algorithm. The given algorithm is written in Java, and it takes an integer input from the user. Two variables i and j are created and initialized to 0.
The loops are executed to iterate from 0 to 99. Each iteration involves a comparison to check whether the condition is met or not. The result of this program would be the value of j = 50.
In addition, the time complexity for this program is O(1).Below is the proof that shows why the efficiency of the algorithm is O(1):1. For the first loop, the variable i is initialized to 0 and incremented up to 99.
Therefore, the loop will execute for a total of 100 times.
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20 pts!
Calculate or write the formula please
A) the value of “dd”
B) the angle theta1
C) angle of transmission (μ)
Answer:
A the value of dd because you can see how the value is to the dd
In the AC resistor circuit of Figure Q2.1, the voltage of the AC power source is
U = 100 sin(120pi x t) V .
what are
(a) the peak voltage of the AC power source
(b) the frequency of the alternating current in the circuit
(c) the instantaneous voltage of the power source at t = 20 ms
(d) the peak voltage across each resistor
(e) the instantaneous resistor voltages at t = 20 ms,
(f) to sketch the waveform of voltage in the first two periods
Answer:
(a) 100 V
(b) 60 Hz
(c) 95.106 V
(d) 25 V, 75 V
(e) 23.776 V, 71.329 V
(f) see attached
Explanation:
(a)The peak value of the sine function is 1, so the peak value of U is ...
100·1 = 100 V.
__
(b)The argument of the sine function is 2πft, so f = 120πt/(2πt) = 60 Hz.
__
(c)When t=0.020, the voltage is ...
U = 100sin(120π·0.020) = 100 sin(2.4π) ≈ 95.106 V
__
(d)The resistors are in the ratio of 1 : 3, so divide the source voltage in that ratio.
The peak voltage across the 5Ω resistor is 1/4 of 100 V, or 25 V.
The peak voltage across the 15Ω resistor is 3/4 of 100 V, or 75 V.
__
(e)The same fractions as in (d) apply to the instantaneous voltage.
The voltage on the 5Ω resistor is 1/4·95.106 V ≈ 23.776 V
The voltage on the 15Ω resistor is 3/4·95.106 V ≈ 71.329 V
__
(f)See attached.
analysis of structure
How many times is the println statement executed? for (int i = 0; i < 10; i++) for (int j = 0; j
c. 10
d. 45
The println statement in the given code is executed 100 times. This is because the code contains two nested loops. The outer loop runs 10 times, as the condition i < 10 is met. For each iteration of the outer loop, the inner loop runs from 0 to 9, as j starts from 0 and increments by 1 until j < 10 is no longer true. Therefore, the inner loop runs 10 times for each iteration of the outer loop.
To calculate the total number of times the println statement is executed, we can multiply the number of iterations of the outer loop (10) by the number of iterations of the inner loop (also 10), giving us 100. Therefore, the answer is option b: 100. The given code snippet contains a nested loop where the outer loop variable 'i' runs from 0 to 9 and the inner loop variable 'j' seems to be missing its range. Assuming the range of 'j' is also from 0 to 9, the println statement will be executed 100 times. Both loops iterate 10 times each, and since the inner loop is within the outer loop, the total number of iterations is 10 * 10 = 100. So, the correct answer is option (b), which states that the println statement is executed 100 times.
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An AM signal having a carrier frequency of 460 kHz is to be mixed with a local oscillator signal at a frequency of 1135 kHz. What does the output of the IF amplifier consist of
Answer:
the output of the IF amplifier consist of 675 kHz
Explanation:
Given the data in the question;
AM signal carrier frequency \(_{RF\) = 460 kHz
Local oscillator frequency\(_{lo\) = 1135 kHz
Now, The output of the IF amplifier consists of difference of local oscillator frequency & AM carrier signal frequency;
FREQUECY\(_{IF\) = FREQUECY\(_{lo\) - FREQUECY\(_{RF\)
so we substitute in our given values
FREQUECY\(_{IF\) = 1135 kHz - 460 kHz
FREQUECY\(_{IF\) = 675 kHz
Therefore, the output of the IF amplifier consist of 675 kHz
what is the phase of the moon during a solar eclipse?; what causes a lunar eclipse; may 2021 lunar eclipse; next blood moon 2021; partial lunar eclipse
The moon phase refers to the different shapes or appearances of the moon as seen from Earth. The moon's phase is determined by its position in relation to the sun and Earth, and the amount of sunlight that is reflecting off its surface. The different moon phases are:
The moon's phases repeat in a cycle that lasts about 29.5 days.
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Consider that you have a code of 200,000 instructions which is executed using a 16 stages pipeline. It is expected that 20% of the instructions will cause an exception. In order to handle the exception, there is an exception handler which is using 20 cycles to execute (includes the flushing and reloading and the actual handling of the exception). The pipeline frequency is 2 GHz
i) How many cycles does it take to execute the code?
ii) What is the average CPI for this code?
iii) How long does it take to execute the code?
Answer:
3
Explanation:
Fall restraint systems must meet which of the falling criteria?
To meet the necessary criteria for effective fall restraint,the principles are Adequate Anchorage,Proper Fit and Adjustment,Maximum Arrest Force,Compatibility and Integrity and Proper Training and Use.
Fall restraint systems are designed to prevent a person from falling while working at heights. To meet the necessary criteria for effective fall restraint, the system must adhere to several key principles:
1. Adequate Anchorage: The system should be securely anchored to a structure capable of withstanding the anticipated loads. Anchorage points must be structurally sound and capable of supporting the maximum forces that may be exerted during a fall.
2. Proper Fit and Adjustment: The fall restraint system should be properly fitted and adjusted to the individual worker. This includes ensuring that harnesses, belts, and lanyards are correctly sized and adjusted for the user's body type and work requirements.
3. Maximum Arrest Force: The fall restraint system should limit the maximum force exerted on the worker's body in the event of a fall. This helps minimize the risk of injury by reducing the impact force transmitted to the body during a fall arrest.
4. Compatibility and Integrity: All components of the fall restraint system must be compatible with each other and function together as intended. This includes the harness, lanyard, connectors, and anchorages.
Regular inspections and maintenance should be conducted to ensure the integrity of the system.
5. Proper Training and Use: Workers must be adequately trained in the proper use of the fall restraint system. They should understand how to properly don and doff the equipment, inspect it for defects, and recognize when the system is not suitable for use.
By meeting these criteria, fall restraint systems can effectively protect workers at heights, reducing the risk of falls and their associated injuries.
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While relaxing in a tea shop, Manalo and Priya stumbled on an idea for a portable air purifier. Grabbing a notepad, Manalo sketched out a way to
control the air flow. Priya then said they should take the next step for making the idea a reality. According to the design process, what would the next
step ideally be?
A. discussing the idea with friends and family
B. a proposal for manufacturing the air purifier
C. including the rough sketch in a portfolio
D.a more detailed sketch that covers materials
Answer:
D. a more detailed sketch that covers materials.
Explanation:
The design process typically involves several steps, starting with ideation and moving on to more detailed planning and execution. In this scenario, Manalo and Priya have already ideated and come up with a rough sketch of their idea for a portable air purifier. The next step in the design process would be to create a more detailed sketch that covers materials, as this would help them to better visualize and plan out the product's construction and manufacturing requirements. Only after this step is completed can they move forward to create a proposal for manufacturing the air purifier.
The bonus rates for each salesperson are determined by sales amounts using the following scale: Sales greater than $35,000 earn a bonus rate of 5%, sales greater than $25,000 earn a bonus rate of 4%. All other sales (any amount greater than 0) earn a bonus rate of 2%. With the sheets still grouped, in cell C5 use an IFS function to determine the commission rate for the first salesperson whose sales are in cell B5. Fill the formula down through cell C8.
Assuming that cell B5 contains the sales amount for the first salesperson, the IFS function to determine the commission rate in cell C5 is:
=IFS(B5>35000, 0.05, B5>25000, 0.04, B5>0, 0.02)
This formula checks the sales amount in B5 against each threshold amount in descending order (starting with $35,000), and returns the corresponding bonus rate if the sales amount is greater than that threshold. If the sales amount is less than or equal to zero, it returns a bonus rate of 0%.
To fill the formula down through cell C8, select cell C5 and drag the fill handle down to cell C8. This will copy the formula to the other cells in the group, adjusting the cell references as needed.
Use the following to answer questions 4 - 5:
A database table consists of the following columns: employee's name, SS#, job-title, hiring-date, years-in-job, base-salary. A bonus calculation program, a personnel promotion application program, and a payroll application program all use this table. To implement a policy change in personnel promotion, the following column is added to the table: highest-college-degree. This new column is not used by the payroll program or by the bonus calculation program.
The following application program will be modified to accommodate the change to the database table:
A) The bonus calculation program
B) The payroll application program
C) The personnel promotion application program
D) All of the above
The ability to add the new column without requiring changes to all of the application programs strongly relates to the following feature of modern database systems:
A) Nonprocedural programming
B) Transaction processing
C) Data sharing
D) Data independence
Entity Relationship Diagrams are input to the following phase of Database Development:
A) Logical Database Design
B) Conceptual Data Modeling
C) Physical Database Design
D) Distributed Database Design
The multi-step process used when creating a new system is referred to as ____.
A) The Systems Development Life Cycle
B) Data mining
C) E-R Modeling
D) SQL
a gas-turbine power plant operates on the simple brayton cycle with air as the working fluid and delivers 32 mw of power. the minimum and maximum temperatures in the cycle are 310 and 900 k, and the pressure of the air at the compressor exit is 8 times the value at the compressor inlet. assuming an isentropic efficiency of 79 percent for the compressor and 83 percent for the turbine, determine the mass flow rate of air through the cycle. account for variation of specific heats with temperature by using the ideal gas tables to determine properties. what is the overall cycle thermal efficiency?
The same potential for cooling exists in reversed gas power cycles as it does in reversed vapor cycles. However, not all gas power cycles have an analog for a reversed cycle refrigerator.
In order to reverse internal combustion gas power cycles, for instance, quick endothermic (heat-absorbing) chemical reactions akin to the exothermic combustion reactions utilized in power cycles would need to be developed. However, efficient reverse cycle refrigeration methods are available for all external combustion gas power cycles. Vapor and gas power cycles quickly revolutionized the globe and did so for all time.
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Tech A says that a mechanical pressure regulator exhausts excess fluid back to the transmission pan. Tech B says that if the transmission pan is removed, the magnet must be replaced. Who is correct?
Answer:
A
Explanation:
add comments to each line of the following mips code and describe in a sentence or two what it computes. assume that $a0 is used for the input and initially contains n, a positive integer. assume that $v0 is used for returning the output value. begin: addi $t0, $zero, 0 // addi $t1, $zero, 1 // loop: slt $t2, $a0, $t1 // bne $t2, $zero, finish // add $t0, $t0, $t1 // addi $t1, $t1, 2 // j loop // finish: add $v0, $t0, $zero
$v0 is the sum of the odd positive integers 1 + 3 + 5 + … which are less than or equal to n.
#t0=sum=0
#t1=i=1
# (n<i)? or (i>n)?
# exit loop if (i>n)
# sum = sum + i
# i = i + 2
# repeat loop
# result = sum
What is positive integers?
A number with a decimal (or fractional) portion equal to zero is referred to as an integer, also known benefit of the entire number, in algebra. The positive whole numbers, negative whole numbers, and the number zero make up the set of integers. Positive whole numbers will be the main topic of this lesson. A whole number that is greater than zero is what is meant by the term "positive integer." All counting numbers are included in the set of positive integers (that is, the natural numbers). A collection (collection of objects) whose components are numbers is known as a number set. All whole numbers on the number line to the right of zero are included in the set of positive integers.
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A recent online start-up just invested millions of dollars into new technology for their firm. Which of the following goals were they MOST likely trying to achieve?
A
specialization
B
economic growth
C
price stability
D
price stability
Answer:
i think D
Explanation:
A technician is building a high-performance gaming pc. which two items should the technician focus on selecting parts for the machine?
The Answer is D. The technician should remove jewelry
Explanation: A technician has been given a PC that is not powering up. After brief troubleshooting, the technician comes to the conclusion the power supply needs to be replaced. Which of the following is the NEXT step in the process of performing the repair?
You are designing a critical component to be installed in a chemical plant, where corrosion resistance and high temperature performance are critical. As a result, a fully dense material is required. Because of the materials used in the system, the part can only be produced by powder metallurgy. Which powder metallurgy process would you use to produce a fully dense component?a) Hot Isostatic Pressing b) Sinter then Metal Injection Molding c) Cold Isostatic Pressing d) Press and Sinter Processes e) Metal Injection Molding
Answer:
Yes
Explanation:
Because your installing something
The powder metallurgy process that would be used to produce a fully dense component is Hot Isostatic Pressing. The correct option is a.
What is Hot Isostatic Pressing?Hot isostatic pressing is a process used to consolidate metal powder or to remove defects in solids such as pores, voids, and internal cracks, densifying the material to 100% of its theoretical density.
Hot Isostatic Pressing (HIP) is a process used to densify powders, cast and sintered parts, and steels and superalloys in a furnace at high pressure and temperatures ranging from 900 to 1250°C.
To provide isotropic properties and 100% densification, the gas pressure acts uniformly in all directions.
Hot Isostatic Pressing is the powder metallurgy process that would be used to create a fully dense component.
Thus, the correct option is a.
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