Design a rectangular metallic waveguide to be used for transmission of electromagnetic power at 2.45 GHz. This frequency should be at the middle of the operating frequency band. The design should also allow maximum power transfer without sacrificing the operating bandwidth. In each case, you should use a safety factor of 10 and neglect ohmic loss in the conductors.
a. Design an air-filled guide to meet the given specifications. Find the maximum power the waveguide can transmit. The breakdown electric field in air is assumed to be 2 x10^6 V/m
b. Now assume that a electric material is used to fill the waveguide. The material is characterized by ε = 2.5 εo, μ = μ o and σ = 0. The breakdown field in the dielectric is 10^7 V/m. How many times more power can be transmitted by this waveguide?
Answers
Answer:
A) 1.4 *10^11 watts
B) 41.42 ≈ 41 TIMES
Explanation:
Designing a rectangular metallic wave guide using the given data
Electromagnetic power = 2.46 GHz also at the middle of operating frequency
A) Design an air-filled guide to meet the given specifications.
operating frequency range = C / αa < f < C / a
2.45 GHz = \(\frac{\frac{C}{ba}+ \frac{c}{a} }{2}\)
The given frequency middle at the middle of operating frequency range
= 4.9 GHz = \(\frac{c + 2c }{ba}\) = 3C / βa
α = \(\frac{3*3*10^{10} }{2*4.9*10^9}\) = 45/4.9 = 9.18 cm
note: to operate in dominant mode aspect ratio should be b = α/2
therefore b = 4.59 cm
Also Maximum power can be carried by wave guide only in dominant mode
i.e TE10 mode
power carried = I E I^2ab / 4Zte using this formula
ZTE = impedance when operated in TE mode = \(\sqrt[n]{1-(\frac{Fc}{f} )^{2} }\)
Fc = cutoff frequency = (3*10^16) / (2*9.18) = 1.6GHz
F = operating frequency = 2.45 GHz
n = freespace impedance = 377 ohms
input all the given values back to ZTE equation
ZTE = 285 ohms
power carried = \(\frac{|2*10^6|^{2}* 9.18 * 4.59 }{4 * 285}\) = 4*10^12 * 0.036
THEREFORE power carried 1 = 1.4 *10^11 watts
B) The dielectric materials given data/parameters
∈ = 2.5 ∈o ∪ = ∪o
breakdown field = 10^7
free space impedance n = \(\sqrt{\frac{u}{e} } = \sqrt{\frac{UoUr}{EoEr} }\)
therefore for the given dielectric n = \(\sqrt{\frac{Uo}{Eo} } \sqrt{\frac{1}{2.5} } = \frac{377}{\sqrt{2.5} }\) n = 238.43
ZTE = \(\sqrt[n]{1-(\frac{1.6}{2.45} )^{2} }\)
therefore ZTE = 180.56 ohms
power carried 2 = \(\frac{|10^7|^2*9.18*4.59}{4*180.56} = 58*10^{11} N\)
To calculate the number of time power can be transmitted by the waveguide = power carried 2 / power carried 1
= 58*10^11 / 1.4*10^11 = 41.42 ≈ 41
Related Questions
Experiment: With the battery voltage set to 15 volts, measure the current in a parallel circuit with 1, 2, 3, and 4 light bulbs. (In each case, place the ammeter next to the battery.) Use Ohm’s law to calculate the total resistance of the circuit. Record results below. Is this right?
Answers
Answer:
No
Explanation:
We expect current to be proportional to the number of identical bulbs. The total resistance is the ratio of voltage to current, so will be inversely proportional to the number of bulbs.
The current readings look wrong in that the first bulb caused the current to be 1 A, but each additional bulb increased it by 2 A. If that is what happened, the bulbs were not identical. That may be OK, but we expect the point of the experiment is to let you see the result described above.
In any event, the total resistance is not calculated properly. It should be the result of dividing voltage (15 V) by current.
Answer:
No, it is not right.
Explanation:
Your table is not consistent with bulbs of the same resistance.
Current comes from a measurement, but resistance comes from a calculation.
I presume that the measured currents are correct.
Ohm's Law states that the current flowing in a circuit is directly proportional to the voltage.
We usually write it as
V/I = R
1. One bulb in circuit
\(R = \dfrac{V}{I} = \dfrac{\text{15 V}}{\text{1 A}}= \mathbf{15 \, \Omega}\)
2. Two bulbs
\(R = \dfrac{V}{I} = \dfrac{\text{15 V}}{\text{3 A}} = \mathbf{5 \, \Omega}\)
3. Three bulbs
\(R = \dfrac{V}{I} = \dfrac{\text{15 V}}{\text{5 A}} = \mathbf{3 \, \Omega}\)
4. Four bulbs
\(R = \dfrac{V}{I} = \dfrac{\text{15 V}}{\text{7 A}} = \mathbf{2.1 \, \Omega}\)
what is the maximum each pallet can weigh in a 22 pallet load?
Answers
If you have a 22-pallet load, and assuming each pallet is the same weight, the maximum weight each pallet can weigh would be around 2,000 pounds
To find out the maximum each pallet can weigh in a 22-pallet load, you need to know the total weight limit for the load. The answer will depend on what type of truck or transportation vehicle you are using to transport the pallets, as each has different weight limits.
To illustrate, for a standard 53-foot trailer, the maximum weight allowed is typically around 44,000 pounds.
44,000 pounds / 22 pallets = 2000.
However, if you know the specific weight limit for the truck or transportation vehicle you are using, you can calculate the maximum weight for each pallet accordingly.
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If a 22 pallet load is to be carried, then the maximum each pallet can weigh in the load will depend on the capacity of the truck, the weight limit per axle, and the total weight of the load.
The weight limit varies for different types of trucks, and other factors like the size and weight of the cargo, the type of load, and the distance to be traveled affect the weight distribution. Therefore, the maximum weight limit that each pallet can carry in a 22 pallet load is 11,250 pounds assuming an even distribution, a maximum weight capacity of 80,000 pounds.A truck can carry a maximum of 22 pallets of different weight capacities, the truck's total weight limit will be reached before 22 pallets are loaded. However, if the load is light and does not occupy much space, more pallets can be loaded. Therefore, it is essential to understand the maximum weight limit that each pallet can carry to prevent exceeding the truck's weight limit, which can cause accidents and damage to the goods.
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assumptions when trying to predict stream discharge using flow accumulation values. what are some other important variables that are not included in this model
Answers
The correct answer is an essential input for many hydrological and topographic accumulation analyses such as stream channel extraction, stream channel ordering and sub-watershed delineation.
The Flow accumulation tool calculates accumulated flow as the accumulated weight of all cells flowing into each downslope cell in the output raster. If no weight raster is provided, a weight of 1 is applied to each cell, and the value of cells in the output raster is the number of cells that flow into each cell.
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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.
An automobile travels along a straight road at 15.65 m/s through a 11.18 m/s speed zone. A police car observed the automobile. At the instant that the two vehicles are abreast of each other, the police car starts to pursue the automobile at a constant acceleration of 1.96 m/s2 . The motorist noticed the police car in his rear view mirror 12 s after the police car started the pursuit and applied his brakes and decelerates at 3.05 m/s2
Answers
An automobile travels along a straight road at 15.65 m/s through a 11.18 m/s speed zone. A police car observed the automobile. At the instant that the two vehicles are abreast of each other, the police car starts to pursue the automobile at a constant acceleration of 1.96 m/s2 . The motorist noticed the police car in his rear view mirror 12 s after the police car started the pursuit and applied his brakes and decelerates at 3.05 m/s2
Find the total time required for the police car to over take the automobile.
Answer:
15.02 sec
Explanation:
The total time required for the police car to overtake the automobile is related to the distance covered by both cars which is equal from instant point of abreast.
So; we can say :
\(D_{pursuit} =D_{police}\)
By using the second equation of motion to find the distance S;
\(S= ut + \dfrac{1}{2}at^2\)
\(D_{pursuit} = (15.65 *12 )+(15.65 (t)+ (\dfrac{1}{2}*(-3.05)t^2)\)
\(D_{pursuit} = (187.8)+(15.65 \ t)-0.5*(3.05)t^2)\)
\(D_{pursuit} = (187.8+15.65 \ t-1.525 t^2)\)
\(D_{police} = ut _P + \dfrac{1}{2}at_p^2\)
where ;
u = 0
\(D_{police} = \dfrac{1}{2}at_p^2\)
\(D_{police} = \dfrac{1}{2}*(1.96)*(t+12)^2\)
\(D_{police} = 0.98*(t+12)^2\)
\(D_{police} = 0.98*(t^2 + 144 + 24t)\)
\(D_{police} = 0.98t^2 + 141.12 + 23.52t\)
Recall that:
\(D_{pursuit} =D_{police}\)
\((187.8+15.65 \ t-1.525 t^2)= 0.98t^2 + 141.12 + 23.52t\)
\((187.8 - 141.12) + (15.65 \ t - 23.52t) -( 1.525 t^2 - 0.98t^2) = 0\)
= 46.68 - 7.85 t -2.505 t² = 0
Solving by using quadratic equation;
t = -6.16 OR t = 3.02
Since we can only take consideration of the value with a positive integer only; then t = 3.02 secs
From the question; The motorist noticed the police car in his rear view mirror 12 s after the police car started the pursuit;
Therefore ; the total time required for the police car to over take the automobile = 12 s + 3.02 s
Total time required for the police car to over take the automobile = 15.02 sec
You are given a binary search tree, whose keys are integers between 1 and 15. You need to search for 7 in this tree. While searching for 7, which sequence below cannot be the sequence of keys visited?a. 8, 6,7b. 15, 13, 14, 10,7c. 1, 11,2, 9.3, 8, 4,7d. 3, 13, 2, 12,7
Answers
The sequence that cannot be the sequence of keys visited while searching for 7 in the given binary search tree is option c. 1, 11, 2, 9, 3, 8, 4, 7.
Why can this sequence not be visited ?Binary search trees adhere to a specific organizational structure, where the keys are arranged in a manner that facilitates efficient searching. Each node in the tree has a key value, and the left child of a node contains a smaller key, while the right child contains a larger key.
The sequence commences with key 1, then jumps to key 11, which violates the expected order of a binary search tree. Furthermore, the subsequent keys visited—2, 9, 3, 8, 4—do not align with the expected progression towards key 7.
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A cylindrical vessel is pressurized to 1.7 MPa. The structure on which the vessel rests becomes damaged, resulting in uneven support that causes a twisting moment T0 of 8 106 N-m on the vessel. The vessel has an outer diameter of 2.5 m and a wall thickness of 50 mm. The steel wall has a uniaxial yield strength of 600 MPa. Determine the factor of safety with respect to yielding (a) assuming a maximum shear stress yield criterion and (b) assuming a von Mises yield criterion.
Answers
Answer:
a) 15.075 , b ) 12.9
Explanation:
pressure on cylindrical vessel = 1.7 MPa
Twisting moment due to pressure = To of 8( 10^6 ) N-m
outer diameter of vessel = 2.5 m
wall thickness of vessel = 50 mm
Steel wall uniaxial yield strength = 600 MPa
Calculate the factor of safety
a) assuming a max shear stress yield criterion
safety factor = 15.075
b) assuming a von Mises yield criterion
safety factor = 12.9
attached below is the detailed solution of the problem
1. Asbestos can be dangerous but is not a known carcinogen.
A) O True
B) O False
Answers
Asbestos may cause cancer by inhalation. Moreover, asbestos is also known to cause different respiratory diseases (especially asbestosis) by affecting the mucosa of the bronchi.
The statement "Asbestos can be dangerous but is not a known carcinogen" is FALSE.Asbestos is a group of materials that were widely used in building constructions until 1990.Asbestos is a toxic substance that may cause mesothelioma and lung cancer.Mesothelioma is a type of cancer that develops on the outer surface that covers different internal organs.Moreover, asbestosis is a chronic disease in the lungs caused by long-term exposure to asbestos.Learn more in:
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Answer:
False
Explanation:
Of the following, which is not a consideration that must be addressed in determining inspection intervals for AST's?
A) Corrosion prevention systems
B) Inspection Interval of other equipment located near the tank under consideration
C) Changes in service(Including changes in water bottoms)
D) Previous inspection results
Answers
Answer:
B) Inspection Interval of other equipment located near the tank under consideration is not a consideration that must be addressed in determining inspection intervals for AST's.
Explanation:
land subsidence due to overdrawing can cause what to occur? question 19 options: the formation of sinkholes the inability to recharge the aquifer in the future damages to roads, building foundations, and sewer lines all of these choices are correct.
Answers
Land subsidence is the gradual or abrupt sinking of the Earth's surface caused by the migration of earth elements underground.
Aquifer-system compaction, drainage of organic soils, underground mining, hydro compaction, natural compaction, sinkholes, are the main causes of land subsidence. The loss of levee freeboard and subsequent reduction in flood protection, the change in gradient along water conveyance canals, damage to roads and bridges, and the collapse of water well casings are some major consequences of land. When a lot of groundwater has been taken out of particular kinds of rocks, like fine-grained sediments happens. The ground is held up in part by the water, which causes the rock to compact. The rocks collapse in on themselves when the water is turned off.
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Select the true items related to absorption capacity. Select only the four correct answers.
Practical absorption capacity is usually less than theoretical absorption capacity.
It is the minimum possible number of vehicles from the minor approach that can merge into the mainstream traffic per hour.
Absorption capacity depends on the vehicle arrival rate at the minor approach.
Practical absorption capacity is usually more than theoretical absorption capacity.
Absorption capacity does not depend on the flow of the mainstream traffic.
Absorption capacity depends on the flow of the mainstream traffic.
Absorption capacity does not depend on the vehicle arrival rate at the minor approach.
It is the maximum possible number of vehicles from the minor approach that can merge into the mainstream traffic per hour.
Answers
The correct answers are:
Practical absorption capacity is usually less than theoretical absorption capacity. Absorption capacity depends on the vehicle arrival rate at the minor approach.
Absorption capacity depends on the flow of the mainstream traffic. It is the maximum possible number of vehicles from the minor approach that can merge into the mainstream traffic per hour.
Absorption capacity is the maximum number of vehicles that can be accommodated per unit time on an intersection by the receiving stream. The theoretical capacity is the absolute maximum number of vehicles that an intersection can handle. The statement "Practical absorption capacity is usually less than theoretical absorption capacity" is true.
This is because the theoretical absorption capacity is the absolute maximum number of vehicles that an intersection can handle, while practical absorption capacity is affected by a variety of restrictions and thus lower than theoretical capacity. "Absorption capacity depends on the flow of the mainstream traffic" is also true since traffic flow on the receiving roadway directly affects the amount of traffic that can be accommodated on the minor road.
Finally, the statement "It is the maximum possible number of vehicles from the minor approach that can merge into the mainstream traffic per hour" is also true.
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A benchmark is derived by comparing measured actual performance against established standards for the measured category. ____________ ? True/False
Answers
A benchmark is derived by comparing measured actual performance against established standards for the measured category is True.
This process allows for an evaluation of performance and helps identify areas for improvement. A benchmark is a point of reference used to evaluate or compare the performance of something, such as a system, process, or product. It involves measuring the actual performance of the subject and comparing it against established standards or best practices for that particular category.
Benchmarks are commonly used in various fields and industries to assess the effectiveness, efficiency, or quality of a particular entity. For example, in computer hardware, benchmark tests are conducted to measure the performance of a computer system or component and compare it to industry standards or other similar systems.
By comparing actual performance against established benchmarks, organizations can identify areas for improvement, set goals, make informed decisions, and measure their progress. Benchmarks provide a quantitative and objective way to assess performance and determine whether the measured entity is meeting expectations or falling short.
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Drag the tiles to the correct boxes to complete the pairs.
Match the material with its property.
cast Iron
zinc
thermoplastic
stainless steel
forms an anti-corrosive layer
around Iron
can be remolded by reheating
>
corrosion-resistant with a high
melting point
an alloy easy to shape in a mold
Answers
Cast Iron: Can be remolded by reheating Zinc: Forms an anti-corrosive layer around iron Thermoplastic: An alloy easy to shape in a mold Stainless Steel: Corrosion-resistant with a high melting point.Materials are classified and used according to their properties.
Properties of materials can be mechanical, electrical, thermal, or chemical. In the manufacturing process, it is important to know the properties of a material, so they can be used to meet the desired design criteria. Some materials have specific and unique properties that make them more suitable for specific applications.Cast Iron: It is an alloy of iron, carbon, and silicon. It is highly brittle and cannot be shaped or deformed in any way. Cast iron can be remolded by reheating.
It has a good casting quality and is used in machine components, pipes, and automobile parts.Zinc: It is a metallic element that has excellent anti-corrosive properties. It forms an anti-corrosive layer around iron, which prevents the iron from rusting. Zinc is used as a coating on steel and iron products. It also has good electrical conductivity and is used in batteries and electrical appliances.Thermoplastic: It is an alloy that is easy to shape in a mold. Thermoplastics can be remolded by heating and are commonly used in packaging, electrical insulation, and automobile parts.Stainless Steel: It is an alloy of iron, carbon, and chromium.
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Which of the following can happen to a full nitrogen cyl-inder if the top is broken off?
Answers
If the top of a full nitrogen cylinder is broken off, several things can happen:Rapid release of nitrogen gas: Since the cylinder is pressurized, the sudden removal of the top can cause a rapid release of nitrogen gas from the cylinder.
The released gas will escape at high speed and create a potential hazard if it comes into contact with people or objects in the vicinity.Projectile hazard: If the top of the cylinder breaks off forcefully, it can act as a projectile and be propelled with significant force. This can cause damage to property or injure individuals in its path.Venting of contents: With the top broken off, the nitrogen gas inside the cylinder will vent freely into the surrounding environment. This can result in the loss of the entire contents of the cylinder, leading to a depletion of the nitrogen supply.Potential for asphyxiation: Nitrogen gas is odorless, colorless, and non-toxic. However, it is also an asphyxiant, meaning it can displace oxygen in an enclosed space. If the broken cylinder is in an enclosed area, the released nitrogen gas can displace the breathable air, potentially leading to asphyxiation if proper ventilation is not ensured.In any case, if the top of a nitrogen cylinder is broken off, it is crucial to prioritize safety and take immediate action to mitigate any potential hazards. This may include evacuating the area, ventilating the space, and contacting professionals or emergency services as necessary.
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Determining criteria and constraints is part of which steps in the engineering design phase? doing an analysis researching the problem brainstorming solutions defining the need
Answers
Answer:
defining the need
Explanation:
Of course, since the first stage of the engineering design phase involves defining the need of the design, it is at this stage that the researcher/engineer should determine the criteria and constraints.
This stage involves asking such questions as:
What restrictions or limitations exist that should be considered in the design?What design requirements do I need so the product can achieve the objective?The nominal output voltage of a certain regulator is 8 V. The output changes 2 mV when the input voltage goes from 12 V to 18 V. Determine the line of regulation and express it as a percentage change over the entire range of Vin.
Answers
Ohm's law, description of the relationship between current, voltage, and resistance.
What is the units of voltage?When written out, the formula reads voltage = current x resistance, or V = A x. Voltage is the pressure from the power source of an electrical circuit that pushes charged electrons (current) through a conducting loop, allowing them to perform tasks like lighting a lamp. Briefly stated, voltage equals pressure and is measured in volts. The potential difference between two points as it is applied across a wire or other electric component is measured by voltage. The amount of resistance in a circuit represents the current's opposition. According to Ohm's law, resistance is inversely proportional to current while the two are directly inversely correlated.Given that the output voltage varies by 5 mV when loaded from 0.01 A to 1 A
Therefore, the regulators output resistance is given by
\(I_{L} = \frac{V_{L} }{R_{L} }\)
\((1.00 - 0.01) A_{} = \frac{5 mV_{} }{R_{L} }\)
\(0.99 A = \frac{5 mV}{R_{L} }\)
∴ The line and load regulation is 0.01 Ω
The output of a difference amplifier is related to the input by the equation:
When V₁ = 6.4 V, V₂ = 5.1 V and V₀ = 64.7 V, the equation becomes
6.4 A₁ + 5.1 A₂ = 64.7______(1)
When V₁ = 5.6 V, V₂ = 4.9 V and V₀ = 35.7 V, the equation becomes
5.6 A₁ + 4.9 A₂ = 35.7_______(2)
Multiply equation (1) by 5.6 and (2) by 6.4
35.84 A₁ + 28.56A₂ = 362.32 ________(3)
35.84 A₁ + 31.36 A₂ = 228.48__________(4)
Subtract equation (3) from (4)
2.8 A₂ = -133.84
A₂ = -133.84/2.8
A₂ = -47.8
Put the value of A₂ into equation (1)
6.4 A₁ + 5.1 (-47.8) = 64.7
6.4 A₁ = 64.7 + 243.78
A₁ = 308.48/6.4
A₁ = 48.2
a) Common mode gain = A₁ + A₂ = 48.2 + (-47.8)
Common mode gain = 0.4
b) Differential mode gain = (A₁ -A₂)/2
Differential mode gain = (48.2 - (-47.8))/2
Differential mode gain = 96/2
Differential mode gain = 48
c) Common Mode Rejection Ratio (CMRR)
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For the circuit shown in Figure below:
R1 = 10KOmega, R2= 1MOmega,
R3 = 10KOmega, R4 = 10KOmega, R5 = 150KOmega, R6 = 10KOmega. Find Av=Vo/Vi
Answers
Answer:
Av = -800
Explanation:
The gain to the output of the first op-amp is ...
A1 = -R2/R1 = -1000/10 = -100
The gain of the voltage divider R3/R4 is ...
A2 = R4/(R3+R4) = 10/(10+10) = 1/2
The gain of the second op-amp circuit from the positive terminal to the output is ...
A3 = 1+ R5/R6 = 1 + 150/10 = 16
Then the total circuit gain is ...
Av = A1×A2×A3 = (-100)(1/2)(16)
Av = -800
_____
Additional comment
In the above, we have assumed ideal op-amps, with infinite gain and infinite input impedance. The resistor values used in the calculations are all Kohms, so we can avoid writing unnecessary zeros.
From a surface measurement made by surface profilometer, the following point values were obtained. (The scale factor is 0.6 micrometer). There are 10 points. 516,534,518,533,518,530,520,526,521 and 526.
Try to find Ra,Rq,Rt values and Ratio Ra/Rq.
Answers
Ra, Rq, and Rt are surface roughness parameters used to characterize the surface texture of a material, and they can be calculated by finding the mean, root mean square.
What are Ra, Rq, and Rt?Ra (arithmetical mean roughness), Rq (root mean square roughness), and Rt (total height roughness) are commonly used surface roughness parameters to characterize the surface texture of a material.
To calculate these parameters, we first need to calculate the mean of all 10 points:
Mean = (516+534+518+533+518+530+520+526+521+526)/10 = 524.2 micrometers.
Then, we need to calculate the deviations of each point from the mean:
516-524.2=-8.2
534-524.2=9.8
518-524.2=-6.2
533-524.2=8.8
518-524.2=-6.2
530-524.2=5.8
520-524.2=-4.2
526-524.2=1.8
521-524.2=-3.2
526-524.2=1.8
Next, we square each deviation, sum them up, and divide by the number of points to calculate Rq:
Rq = √( (-8.2)²+ 9.8² + (-6.2)² + 8.8² + (-6.2)² + 5.8² + (-4.2)² + 1.8² + (-3.2)² + 1.8² ) / 10
Rq = 5.406
To calculate Ra, we take the absolute value of each deviation, sum them up, and divide by the number of points:
Ra = (8.2 + 9.8 + 6.2 + 8.8 + 6.2 + 5.8 + 4.2 + 1.8 + 3.2 + 1.8) / 10
Ra = 5.38
To calculate Rt, we find the difference between the highest and lowest point values:
R
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F12-33. The ca . R has a speed of 55 ft/s. Determine the angular velocity 8 of the radial line OA at this instant.
Answers
Answer:
0.1375 rad/s
Explanation:
Speed of car = 55 ft/s
We are to find angular velocity, which is θ.
There are mistakes in this question. It should be θ not 8 and r = 400 ft
Radius r = 400ft
Speed = velocity = 55 ft/s
We Express transverse of velocity
Vθ = rθ
Vθ = 400θ
Then magnitude
V = √(Vr)²+(Vθ)²
55 = √0² + 400θ²
55 = √160000θ
55 = 400θ
We find the value of θ
θ = 55/400
= 0.1375rad/s
The angular velocityθ = 0.1375 rad/s
Recall a recent decision that you had difficulty making. How did you diagnose and solve the challenge? Were the consequences good, bad, or both? Should you, and could you, have done anything differently in making the decision? Based on what you have learned so far, what changes would you make and why?
Answers
Answer:
yes maybe
Explanation:
I have a project and everyone in the world will know about it.
Answer:
both
Explanation:
The seers were of the opinion that_____ . *
a healthy mind guides a healthy body.
the healthy body needs no exercise.
a healthy mind resides in a healthy body.
the healthy mind resides in every body.
Answers
Answer:
✔️a healthy mind resides in a healthy body.
Explanation:
The seers were of the opinion that "a healthy mind resides in a healthy body."
Just like the English translation of a famous quotation from Thales, pre-Socratic Greek philosopher puts it "a sound mind in a sound body"; which tries to demonstrate the close connections that exists in bodily well-being and one's ability to enjoy life.
The seers were actually of the opinion that a healthy mind resides in a healthy body. It implies that there is connection between the body and the mind. When the body catches an illness, the mind and other parts of the body are affected. When our minds are not healthy, it affects the effective functioning of the body.
So, a healthy mind will definitely be found in a healthy body.
✔️a healthy mind resides in a healthy body.
Explanation:
The seers were of the opinion that "a healthy mind resides in a healthy body."
Just like the English translation of a famous quotation from Thales, pre-Socratic Greek philosopher puts it "a sound mind in a sound body"; which tries to demonstrate the close connections that exists in bodily well-being and one's ability to enjoy life.
The seers were actually of the opinion that a healthy mind resides in a healthy body. It implies that there is connection between the body and the mind. When the body catches an illness, the mind and other parts of the body are affected. When our minds are not healthy, it affects the effective functioning of the body.
So, a healthy mind will definitely be found in a healthy body.
TRUE/FALSE. most requirements analysts are recent software engineering graduates, due to their extensive study of requirements engineering.
Answers
FALSE. Due to their significant study of requirements engineering, the majority of requirements analysts are recent graduates of software engineering.
Engineering is the use of scientific concepts in the design and construction of equipment, structures, and other items including bridges, tunnels, roads, cars, and buildings. There are other more specialized fields within the engineering discipline, each of which focuses a stronger emphasis on particular areas of applied mathematics, applied science, and application types. There is a glossary for engineering. The Latin terms ingenui, which means "cleverness," and ingeniare, which means "to contrive, devise," are the origin of the English word engineering. Engineering is the creative application of scientific principles to design or develop structures, machines, apparatus, or manufacturing processes, or works utilizing them separately or in combination; or to construct or operate the same while fully cognizant of their design, according to the American Engineers' Council for Professional Development
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Hey guys can anyone list chemical engineering advancement that has been discovered within the past 20 years
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Nanopesticides. The world population keeps growing. ...
Enantio selective organocatalysis. ...
Solid-state batteries. ...
Flow Chemistry. ...
Porous material for Water Harvesting. ...
Directed evolution of selective enzymes. ...
From plastics to monomers. ...
Find: factor of safety (n)for point A and B by using both MSS and DE (you can neglect shear stress due to shear force and also neglect stress concentration)
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Answer:
Hello your question is incomplete attached below is the complete question
Answer : Factor of safety for point A :
i) using MSS
(Fos)MSS = 3.22
ii) using DE
(Fos)DE = 3.27
Factor of safety for point B
i) using MSS
(Fos)MSS = 3.04
ii) using DE
(Fos)DE = 3.604
Explanation:
Factor of safety for point A :
i) using MSS
(Fos)MSS = 3.22
ii) using DE
(Fos)DE = 3.27
Factor of safety for point B
i) using MSS
(Fos)MSS = 3.04
ii) using DE
(Fos)DE = 3.604
Attached below is the detailed solution
Underground water is to be pumped by a 78% efficient 5- kW submerged pump to a pool whose free surface is 30 m above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determine (a) the maximum flow rate of water (5-point) and (b) the pressure difference across the pump (5-point). Assume the elevation difference between the pump inlet and the outlet and the effect of the kinetic energy correction factors to be negligible
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Answer:
a) The maximum flowrate of the pump is approximately 13,305.22 cm³/s
b) The pressure difference across the pump is approximately 293.118 kPa
Explanation:
The efficiency of the pump = 78%
The power of the pump = 5 -kW
The height of the pool above the underground water, h = 30 m
The diameter of the pipe on the intake side = 7 cm
The diameter of the pipe on the discharge side = 5 cm
a) The maximum flowrate of the pump is given as follows;
\(P = \dfrac{Q \cdot \rho \cdot g\cdot h}{\eta_t}\)
Where;
P = The power of the pump
Q = The flowrate of the pump
ρ = The density of the fluid = 997 kg/m³
h = The head of the pump = 30 m
g = The acceleration due to gravity ≈ 9.8 m/s²
\(\eta_t\) = The efficiency of the pump = 78%
\(\therefore Q_{max} = \dfrac{P \cdot \eta_t}{\rho \cdot g\cdot h}\)
\(Q_{max}\) = 5,000 × 0.78/(997 × 9.8 × 30) ≈ 0.0133 m³/s
The maximum flowrate of the pump \(Q_{max}\) ≈ 0.013305 m³/s = 13,305.22 cm³/s
b) The pressure difference across the pump, ΔP = ρ·g·h
∴ ΔP = 997 kg/m³ × 9.8 m/s² × 30 m = 293.118 kPa
The pressure difference across the pump, ΔP ≈ 293.118 kPa
Consider diodes in a rectifier circuit. Input voltage is sinusoidal with a peak of +/-10 V. Diode drop is 0.7 V. What is the PIV for each type rectifier 1. 0.7 V 2. 1.4 V 3. 10.7 V 4. 11.4 V Bridge rectifier 5. 19.3 V Full-wave rectifier 6. 8.6 V 7. 9.3 V Half-wave rectifier 8. 7.2 V 9. 12.1 V 10. 12.8 V 11. 10 V
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Answer is given below:
Explanation:
Peak inverse voltage (PIV) can be defined as the maximum value of the reverse voltage of the diode, which is the maximum value of the input cycle when the diode is on. In reverse bias. Happens. 9.3V for braid rectifiers cut at 0.7The center tapered rectifier has 2 diodes in parallel so the maximum voltage is 2Vm so the answer to cut off the 0.7 voltage is19.3V. For a half wave rectifier it is Vm i.e. 10 V.In Python, when to use a Dictionary, List or Set?
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A Dictionary is used when you need to store key-value pairs, where the keys are unique. A Dictionary is an unordered, mutable data type, meaning that the order of the elements are allowed to be changed.
What is Dictionary?A dictionary is an organized collection of words and their definitions. A dictionary typically includes a range of alphabetically-arranged entries, each of which includes the word, its pronunciation, its part of speech (noun, verb, etc.), and its definition.
A List is used when you need to store an ordered collection of elements. A List is an ordered, mutable data type, meaning that the order of the elements is preserved and the elements are allowed to be changed.
Set is used when you need to store an unordered collection of unique elements. A Set is an unordered, immutable data type, meaning that the order of the elements is not preserved and the elements are not allowed to be changed.
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The big ben clock tower in london has clocks on all four sides. If each clock has a minute hand that is 11.5 feed in length, how far does the tip of each hand travel in 52 minutes?
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Answer:
Updated question
The big ben clock tower in London has clocks on all four sides. If each clock has a minute hand that is 11.5 feet in length, how far does the tip of each hand travel in 52 minutes?
The distance traveled by the tip of the minute hand of the clock would be 62.59 ft
Explanation:
Let us assume the shape of the clock is circular.
the minute hand is equal to the radius = 11.5 ft
Diameter = radius x 2
Diameter = 11.5 x 2 = 23 ft
The distance traveled by the tip of the minute hand can be calculated thus;
the fraction of the circumference traveled by the minute hand would be;
52/60 = 0.8667
Circumference of the clock would be;
C = pi x d
where C is the circumference
pi is a constant
d is the diameter
C = 3.14 x 23
C = 72.22 ft
Therefore the fraction of the circumference covered by the minute hand would be;
72.22 ft x 0.8667 = 62.59 ft
Therefore the distance traveled by the tip of the minute hand of the clock would be 62.59 ft
I need some help!
Thanks
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Answer:
a c 1 museum is a patient who by think and pay the the price
In a dispute between Cosmic Games Corporation and Mythic Engineering Associates, Inc., the court applies the doctrine of stare decisis. What is this doctrine? What does this doctrine have to do with the American legal system?
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The doctrine of stare decisis is a legal principle that involves adhering to previous court decisions when deciding similar cases.
It is a fundamental aspect of the American legal system, promoting consistency, stability, and predictability in the interpretation and application of laws.
The doctrine of stare decisis, which means "to stand by things decided," is a concept in the legal system that requires courts to follow and adhere to previous decisions or precedents when deciding cases with similar facts or legal issues. It promotes stability and consistency in the interpretation and application of laws by ensuring that similar cases are treated similarly.
Under this doctrine, once a court has established a legal principle or precedent, it is generally binding on lower courts within the same jurisdiction. This means that judges are obligated to follow the reasoning and outcome of previous cases when faced with similar legal issues. However, stare decisis also allows for the possibility of overruling or departing from precedent in exceptional circumstances or when there is a compelling reason to do so.
In the American legal system, the doctrine of stare decisis plays a crucial role in providing predictability and stability in the law. It ensures that similar cases are treated consistently, and the decisions made by higher courts serve as guiding principles for lower courts. Stare decisis contributes to the development of legal principles, the preservation of legal precedents, and the overall integrity and fairness of the legal system.
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