Let X[m] be the 6-point DFT of x[n] = [1, 2, 3, 4, 5, 6]. Determine the sequence y[n] whose DFT
Answers
The sequence y[n] whose DFT is equal to 2X[m] is [7, -3 - j, -1, -1, -3 + j, 7].
Given that x[n] = [1, 2, 3, 4, 5, 6] is a sequence of length 6 and its 6-point DFT is X[m], we need to determine the sequence y[n] whose DFT is equal to 2X[m].
To obtain the sequence y[n] whose DFT is equal to 2X[m], we can multiply each element of X[m] by 2 and then take the 6-point inverse DFT.
Thus,y[n] = IDFT{2X[m]}
Multiplying each element of X[m] by 2, we get
2X[m] = [2, 8, 2 + 2j, 2, 2 - 2j, 8]
Taking 6-point IDFT of 2X[m], we get
y[n] = IDFT{2X[m]}= [7, -3 - j, -1, -1, -3 + j, 7]
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Related Questions
Back-fill used for underground wiring shall not damage ____________ or prevent adequate compaction of fill or contribute to corrosion.
Answers
The back-fill used for underground wiring shall not damage the raceways, cables, and conductors or prevent adequate compaction of fill or contribute to corrosion.
What do you mean by underground wiring?A unique form of electric wiring or cable this is designed to be buried in a trench underground is known as Direct-burial cable. The character electric accomplishing wires in the cable are encased in a strong thermoplastic sheath that seals out moisture and protects the accomplishing wires within.
The complete question is given below:
(a) raceways
(b) cables
(c) conductors
(d) all of these
Thus, The back-fill used for underground wiring shall not damage the raceways, cables, and conductors or prevent adequate compaction of fill or contribute to corrosion.
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In a voltage-divider biased pnp transistor, there is no base current, but the base voltage is approximately correct. The most likely problem(s) is
Answers
Answer:
the base-emitter junction is open and the emitter resistor is open
Explanation:
Because here there will be no base current only when the the base emitter junction is kept open and. Also when emitter resistor is kept open or with thus there will be no voltage drop across the Resistor meaning the base voltage Will be equal to that in the voltage divider circuitry
Heat-absorbing glass was developed to block more of Solar Radiation than light. True False
Answers
4. Oil system cleaning products should not use solvents because:
A) O Solvents smell bad
B) Solvents are completely removed during the service
CO Solvents have no impact on dirt and debris
DO Solvents can damage certain plastics and rubbers found in the engine
<< Previous Page
Next Pag
Answers
Answer:
Solvents can damage certain plastics and rubbers found in the engine
Explanation:
Identify at least three new and emerging technologies that are used in the electronics and telecommunications industry.
Answers
Answer: See explanation
Explanation:
Emerging technologies are simply referred to as the technical innovations which are done within a particular sector and typically brings about growth to such field or sector.
Some of the new and emerging technologies that are used in the electronics and telecommunications industry include:
1. Digital scent technology - This is a technology that is used for the sensing and the transmission of digital media such as video games, music etc that are event enabled.
2. Electronic nose - This refers to an electronic sensing device which is used in the detection of flavors.
3. Ambient intelligence - It is an electronic environments which shows sensitivity when there are people.
Which of the following is NOT a typical benefit for companies with strong safety programs? OSHA 30
Answers
Answer:
i don't know
Explanation:
The benefit for companies with strong safety programs
Safety and health programs aids businesses.Lower costs and others.What are OSHA Standards?OSHA Standards are known to be regulations that tells the ways that employers must need to protect their employees from any kind of hazards in the workplace.
Note that The benefit for companies with strong safety programs
Safety and health programs aids businesses.Lower costs and others.Learn more about OSHA from
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A 75-kg piano is hosted on a crane and delivered throughout the window of a 6th story apartment (20 meters above ground). What is the potential energy of the piano?
Answers
Answer:
14,700 J
Explanation:
PE = Mgh = (75 kg)(9.8 m/s²)(20 m) = 14,700 J
CHALLENGE ACTIVITY 5.12.1: Change order of elements in function list argument. Write a function swap that swaps the first and last elements of a list argument. Sample output with input: 'all good things, mustend here ['here', 'good', 'things', 'must', 'end', 'all') 1 2 det suapvalues_list): I list return list 5 list = There', 'good', 'things', 'must, end', '11'] 6 7 3 4 8 9 values_list = input().split) - Program receives como separated vagues de 5,4,13,19 1e swap values_list 11 12 prins (values_list
Answers
The function swap that swaps the first and last elements of a list argument is in explanation part below.
The code for the swap function:
def swap(values_list):
values_list[0], values_list[-1] = values_list[-1], values_list[0]
return values_list
input_list = input("Enter comma-separated values: ").split(',')
swapped_list = swap(input_list)
print(swapped_list)
The swap function in this code swaps the first and last members of a list by using tuple packing and unpacking. The altered list is then given back.
The user is asked to enter comma-separated values, which are subsequently divided into a list, in the main section of the code.
Thus, the swap function is called with the input list, and the resulting swapped list is printed as the output.
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who is the strongest avenger i say hulk but who knows at this point
Answers
Answer:
or is the strongest evenger she hulk
Explanation:
?????????
Answer:
Thor!
Explanation:
In Thor: Ragnarok he beat the Hulk in order for Hulk to win thor had to be electrocuted and in Avengers: Endgame Thor is seen holding open the "Floodgates" and withstanding the radiation from a dying star, also the fact that Thor is a god means that he is all powerful and the rightful heir to the throne to Asgard, plus the fact that he has defeated Loki multiple times a feat that not even the Hulk has done.
Which of the following statements are true about staying safe while
working around all caught-in caught-between hazards?
Select two answers that apply.
What you should do changes based on hazards you’re exposed to.
You should be aware of any hazards that are present
You should be aware of the only hazards indicated as critical by management
What you should do is the exact same no matter the hazard
Answers
Answer:
What you should do changes based on the hazards you're exposed to.
You should be aware of any hazards that are present.
Is the impedance of the capacitor purely reactive, and how does it compare to the nominal value of the ideal capacitor? Why or why not is it purely reactive?
Answers
In an electric field, a capacitor is a device that stores electrical energy. It has two terminals and is a passive electrical component. Capacitance refers to a capacitor's effect.
What is the impedance of an ideal capacitor?An perfect capacitor has an infinite resistance. For all frequencies and capacitance levels, the reactance of a perfect capacitor, and consequently its impedance, is negative.A capacitor that has no resistance and therefore doesn't lose any energy while it's operating is the ideal capacitor. It just possesses capacitance. There is no dielectric loss in a perfect capacitor. High temperature stability characterizes the ideal capacitor.As capacitance and frequency increase, capacitive reactance falls. Impedance is the complete opposition that reactance and resistance give.Similar to inductors, the ideal capacitor is a totally reactive device with no resistive (power dissipative) effects whatsoever. Of course, nothing is so flawless in the actual world. Capacitors, however, have the advantage of often being more pure reactive componentsTo learn more about Ideal capacitor refer to:
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A chain fall locks it’s elevated load is place using
Answers
A chain fall locks it’s elevated load is place using an automatic brake.
A chain fall locks it’s elevated load is place using an automatic brake.
What is automatic brake?Automatic emergency braking (AEB) is a safety feature that may detect when a collision is likely to happen and automatically apply the brakes to either slow down the vehicle before impact or stop it altogether to prevent a collision.
Additionally, it found that injuries from these incidents decreased by 56%. Reverse automated braking systems have been associated with a 78% reduction in crashes when compared to vehicles that merely have a reverse camera.
In general, automatic emergency braking is intended to engage at highway speeds, provided the front collision warning sensors can identify the car in front of them. In towns, newer systems operate at slower rates.
Thus, an automatic brake.
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Discuss on forced convection heat transfer with real examples.
Answers
Answer:
forced convection
Explanation:
When a fan, pump or suction device is used to facilitate convection, the result is forced convection. Everyday examples of this can be seen with air conditioning, central heating, a car radiator using fluid, or a convection oven.
different lever designs can be engineered to alter the brake pedal effort required of the driver by using different levels of ?
Answers
Different lever designs can be engineered and developed to alter the brake pedal effort required of the driver by using different levels of mechanical advantage.
What is mechanical advantage?Mechanical advantage can be defined as a ratio of the output force of a lever to the force acting on it (input force or effort), assuming no losses due to wear, flexibility, tear or friction.
This ultimately implies that, different lever designs can be suitably engineered and developed to alter the brake pedal effort (input force) that is required of the driver, especially by using different levels of mechanical advantage.
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Technician A says that a standard grade 5 bolt is stronger than a standard grade 8 bolt. Technician B says that a metric grade 12.9 bolt is stronger than a metric grade 4.6 bolt. Who is correct?
Answers
Since Tech B says that a metric grade 12.9 bolt is stronger than a metric 4.6 bolt. the person that is correct is option b. Tech B.
What grade is a 12.9 bolt?The grade of 12.9 bolt is known to be 1220 (176,000 psi). The alloy carbon steel is said to be one that is often used to make Metric 12.9 Hex Cap Screws that is heat-treated, quenched, as well as tempered.
Their strength is one that is comparable to alloy sockets, and with a proof load of 970 MPa and a minimum tensile strength of 1220 MPa.
Therefore, Since Tech B says that a metric grade 12.9 bolt is stronger than a metric 4.6 bolt. the person that is correct is option b. Tech B.
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See full question below
Tech A says that a standard grade 5 bolt is stronger than a standard grade 8 bolt. Tech B says that a metric grade 12.9 bolt is stronger than a metric 4.6 bolt. Who is correct?
a. Tech A
b. Tech B
c. both
d. neither
4. Which of these is typically NOT a function of the flywheel?
OA. Power transfer to the transmission
OB. Engage the Starter
OC. Smooth out power pulses
OD. Balance the crankshaft
Answers
Answer:D
Explanation:
Option D is correct. Balancing the crankshaft is NOT one of the functions of a flywheel.
A flywheel is part of an automobile. It is a heavy wheel that is attached to a rotating shaft of an automobile. Since there may be the presence of large forces within an automobile structure, the presence of a flywheel helps to balance the force evenly across it.
Some of the functions of the flywheel are but are not limited to help in transferring power to the transmission, engaging the starter, and smoothing out of power pulses.
Hence based on the explanation above, balancing the crankshaft is NOT one of the function of a flywheel.
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Which of the following is a better thesis statement? Freedom is not free. American’s veterans pay a high price for our freedom. America’s veteran’s defend our freedom, but they sacrifice their personal ambitions and their lives, and many of them suffer physically and mentally from their experiences.
Answers
Answer:
C). America’s veterans defend our freedom, but they sacrifice their personal ambitions and their lives, and many of them suffer physically and mentally from their experiences.
Explanation:
A good thesis statement must provide the central idea or theme of the paper or the essay in a capsule form along with its theoretical base. The key characteristics of a thesis statement are its arguability, specificity, and intensity. As per these descriptions, the above statement correctly relates the main point('America's...freedom') very clearly and precisely. It also contains the arguability which can be supported through further evidences.
Help, quick please. I need help with my engineering word problem
Answers
Answer:
a
Explanation:
The daily average concentration of pollutants in a stream follows a lognormal distribution with a mean of 50 mg/l and a standard deviation of 12 mg/l. It is desired to calculate the following probabilities:
1.) That the average concentration of pollutants in the stream on a given day will exceed 85 mg/l; and
2.) That a critical level of 95 mg/l will only be exceeded at the most one day in a given week (seven days). Assume that the pollutant concentrations between days are statistically independent.
Answers
Answer:
1) probability that the average concentration of pollutants in the stream on a given day will exceed 85 mg/l is 0.0018
2) probability that a critical level of 95 mg/l will only be exceeded at the most one day in a given week (seven days) is 0.9993
Explanation:
Given the data in the question;
mean μ = 50 mg/l
standard deviation σ = 12 mg/l
we know that; x-score = x-μ / σ
1) probability that the average concentration of pollutants in the stream on a given day will exceed 85 mg/l
p( x > 85 ) = P( Z > 85-50 / 12 )
= P( Z > 35/12 )
= P( Z > 2.9166)
= P( Z > 2.92)
= 1 - P( Z > 2.92)
from z-score table; P( Z > 2.92) = 0.9982
= 1 - 0.9982
p( x > 85 ) = 0.0018
Therefore, probability that the average concentration of pollutants in the stream on a given day will exceed 85 mg/l is 0.0018
2) probability that a critical level of 95 mg/l will only be exceeded at the most one day in a given week (seven days). Assume that the pollutant concentrations between days are statistically independent.
p( x > 95 ) = p( Z > 95-50 / 12 )
= p( Z > 45 / 12 )
= p( Z > 3.75 )
= 1 - p( Z > 3.75 )
from z-score table; p( Z > 3.75 ) = 0.9999
= 1 - 0.9999
= 0.0001
Now; p = 0.0001 and n = ( week) = 7
x = number of days × exceeds 99 mg/l
x ¬ Binomial ( n =7 p = 0.0001 )
p(x ≤ 1) = p(x=0) + (p=1)
= ¹∑\(_{x=0}\) \(^7C_x ( 0.0001)^x\) \((0.9999)^{7-x}\)
= \(^7C_0 ( 0.0001)^0\) \((0.9999)^{7-0}\)
= 7!/(0!(7-0)!) \(( 0.0001)^0\) \((0.9999)^{7-0}\)
= (1) ( 1 ) ( 0.9993 )
= 0.9993
Therefore, probability that a critical level of 95 mg/l will only be exceeded at the most one day in a given week (seven days) is 0.9993
IV. An annealed copper strip 9 inches wide and 2.2 inches thick, is rolled to its maximum possible draft in one pass. The following properties of annealed copper are given: strength coefficient is 90,000 psi; true strain at the onset of non-uniform deformation is 0.45; and, engineering strain at yield is 0.11. The coefficient of friction between strip and roll is 0.2. The roll radius is 14inches and the rolls rotate at 150 rpm. Calculate the roll-strip contact length. Calculate the absolute value of thetrue strain that the strip undergoes in this operation. Determine the average true stress of the strip in theroll gap. Calculate the roll force. Calculate the horsepower required.
Answers
Answer:
13.9357 horse power
Explanation:
Annealed copper
Given :
Width, b = 9 inches
Thickness, \($h_0=2.2$\) inches
K= 90,000 Psi
μ = 0.2, R = 14 inches, N = 150 rpm
For the maximum possible draft in one pass,
\($\Delta h = H_0-h_f=\mu^2R$\)
\($=0.2^2 \times 14 = 0.56$\) inches
\($h_f = 2.2 - 0.56$\)
= 1.64 inches
Roll strip contact length (L) = \($\sqrt{R(h_0-h_f)}$\)
\($=\sqrt{14 \times 0.56}$\)
= 2.8 inches
Absolute value of true strain, \($\epsilon_T$\)
\($\epsilon_T=\ln \left(\frac{2.2}{1.64}\right) = 0.2937$\)
Average true stress, \($\overline{\gamma}=\frac{K\sum_f}{1+n}= 31305.56$\) Psi
Roll force, \($L \times b \times \overline{\gamma} = 2.8 \times 9 \times 31305.56$\)
= 788,900 lb
For SI units,
Power = \($\frac{2 \pi FLN}{60}$\)
\($=\frac{2 \pi 788900\times 2.8\times 150}{60\times 44.25\times 12}$\)
= 10399.81168 W
Horse power = 13.9357
Cellular network towers are configured in such a way so that they avoid what type of problem?
Answers
Answer:
They are configured this way to avoid overlap issues.
Explanation:
phân tích phương pháp gia công plasma
Answers
Answer:
can you plz write in English language so we can give you answer
Television is a technological development that occurred during the . renaissance renaissance industrial age industrial age paleolithic age paleolithic age information age
Answers
Television is a technological development that occurred during the industrial age.
Is a television a technology?The technology of the use of television is known to be one that has changed since its industrial days via the use of a mechanical system which is said to be invented by a man named Paul Gottlieb Nipkow in the year 1884.
Therefore, one can say that Television is a technological development that occurred during the industrial age.
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Television is a technological development that occurred during the industrial age.
What is Industrial Age?The Industrial Age can be regarded as the period of history which there is a change from the usage of hand tools to power-driven machines which occurred around 1760.
Around this period there was turn around in economic and social organization and some items such as Television, as well as other engines were made.
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6.03 Discussion: Then & Now - Safety
Discussion Topic
I'm Done
In this unit, you have learned about the evolution of the industry’s machines, through both technology and innovation. These improvements have reduced risk and injury to the Operating Engineers.
Choose one innovation or device.
Explain why you think that technology is the most important advancement in Operating Engineers’ safety.
Answers
Answer:
Information technology is important in our lives because it helps to deal with every day's dynamic things. Technology offers various tools to boost development and to exchange information. Both these things are the objective of IT to make tasks easier and to solve many problems.
Complete the sentence using the correct term.
are made without yeast and are often savory or sweet.
Answers
Answer:
Quick Breads
Explanation:
I think this is correct. I am not for sure i just looked it up and it says word for word that this is the answer.
Answer:
Quick Breads
Explanation:
I got it right on my Plato test
chemicals injected into shale rock stay there....true or false
Answers
Answer:
False
Explanation:
Flow back to surface
sump pumps _____ included as part of a home inspection.
Answers
According to the claim, a house inspection consists of checking submersible pumps.
What is a pumpset defined as?Pumpset. Pumpset is an assembly that includes a pumped, a driver, a coupling, and auxiliary parts on a common mounting base with an integrated or standalone fire pump regulator. Document currency is not guaranteed when printed. downloaded the RMIT Local Library on 24 Jul 2015.
What is a pump and how does it operate?All pipes rely on the natural forces of nature to move a liquid. As the moving pump gear (impeller, rotary, piston outer layer, etc.) begins to move, air is pushed aside. A cold air partial vacuum created by air movement might be filled with some more air.
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Discuss the nature of materials causing turbidity in
(a) River water during flash flood
(b) Polluted river water
(c) Domestic wastewater
Answers
Answer:
a
Explanation:
Q2 [45 marks] Consider Ibra region where the installed solar panels cost on average 2 OMR /W.
[10 marks] What is the cost to install a 5kW PV system for a residence?
[10 marks] If the solar irradiance in Ibra is on average 800W/m2 and the installed panels have efficiency of 18%. How many panels are required if the panel’s area is 2m2?
[15 marks] Assume Ibra has an average of 10 day-hours, dusty environment which causes the efficiency of the solar system to drop by 10% on average, and 30 cloudy days/year which cause the efficiency of the solar panels drops by 50%. If electrical power cost per kWh is 0.05 OMR determine the break-even time for the 5kW PV system.
[10 marks] If the system to be off-grid, what would be the backup time if three 12-V batteries were selected each with a capacity of 200Ah. Assume that you can discharge the batteries up to 80% of their capacities.
Answers
Answer:
so hard it is
Explanation:
I don't know about this
please mark as brainleast
byýyy
The force that your engine applies to turn your cars wheels