A lossless transmission line with a characteristic impedance of 75 ohm is terminated by a load of 120 ohm. the length of the line is 1.25ᴧ. if the line is energized by a source of 100 v (rms) with an internal impedance of 50 ohms , determine:
the input impedance
load reflection coefficient
magnitude of the load voltage
power delivered to the load
Answers
The input impedance is 75 Ω when the line is energized by a source of 100 v (rms) with an internal impedance of 50 ohms.
Given values:
Characteristics Impedance of transmission line = 75 Ω
Termination Impedance = 120 Ω
Length of Transmission line = 1.25 λ
Voltage of Source = 100 Vrms
Internal Resistance of Source = 50 Ω
Calculation of Input Impedance:
The reflection coefficient is given as:
$$\Gamma = \frac{{{Z_L} - Z_C}}{{{Z_L} + Z_C}}$$
where,
ZL = Termination Impedance = 120 Ω
ZC = Characteristics Impedance of Transmission Line = 75 Ω
By substituting the values in the above formula we get, Γ = 0.2
The voltage on the line is given by the formula:
$$V(x) = V_0^+ e^{ - j\beta x} + V_0^- e^{j\beta x}$$
Where
V0+ = Voltage of Wave traveling towards load
V0- = Voltage of Wave traveling towards the source
β = (2π/λ) = (2π/1.25λ) = 1.6πx = Length of Transmission Line = 1.25 λ
By substituting the values in the above equation we get,
$$V(x) = V_0^+ e^{ - j(1.6\pi) x} + V_0^- e^{j(1.6\pi) x}$$
But, V0+ = V0- (Since it is a Lossless Transmission Line)
So,V(x) = V0+ (e-jβx + e+jβx)V(x) = 2V0+ cos(βx)
By substituting the values in the above formula we get, V(x) = 2V0+ cos(1.6πx)
The current on the line is given by the formula:
$$I(x) = \frac{{{V_0}}}{{{Z_c}}}\left[ {{e^{ - j\beta x}} - {\Gamma _L}{e^{j\beta x}}} \right]$$
where, V0 = Voltage of Source = 100
Vrms ZC = Characteristics Impedance of Transmission Line = 75 ΩΓL = Reflection Coefficient (Since ZL ≠ ZC)
By substituting the values in the above formula we get, I(x) = (100/75)[e-jβx - 0.2ejβx]I(x) = 4/3 (cos(1.6πx) - 0.2cos(1.6πx))
Zin: Input Impedance is given by the formula:$$Z_{in} = \frac{{{V_0}}}{{{I_0}}}$$
where I0 = Current of Wave traveling towards load at the input end substituting the values
in the above formula we get, Zin = (100)/(4/3 (cos(1.6πx) - 0.2cos(1.6πx)))
Zin = 75 Ω
Hence the Input Impedance is 75 Ω.
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Related Questions
A solid rock, suspended in air by a spring scale, has a
measured mass of 9.00 kg. When the rock is completly
submerged under water, the scale reads 3.00 kg.
a) Find the magnitude of the buoyant force and
b) What is the volume of the rock?
(water density = 1 000 kg/m³) what is the answer
Answers
Answer:
a. 58.8 N.
b. 6 * 10⁻³m³ or 6cm³.
Explanation:
a) Find the magnitude of the buoyant force.
Buoyant force is the force that a liquid applies into an object that is partially or totally submerged into it.
In this case, the buoyant force is given by the differente between the weight (in Newtons) of the rock in the air and the weight (in Newtons) of the rock while submerged in water.
Therefore:
Buoyant force: Fb= (9.00kg * 9.8m/s²) - (3.00kg * 9.8m/s²)= (88.2 N) - (29.4 N)= 58.8 N.
b) What is the volume of the rock? (water density = 1 000 kg/m³).
The Principle of Archimedes states the following: "A body immersed in a fluid experiences an upthrust equal to the weight of the fluid displaced".
This can be expressed in a mathematical equation in the following fashion:
\(Fb=dgv\), where d is the density of the liquid; g is the acceleration of gravity, and v is the volume of the part of the body that is submerged.
In this case, the rock is totally submerged, hence, v is the total volume is the rock.
Taking into account that we have all the needed variables of this equation, except for the volume, we can solve the equation for v and calculate it's value. This is the process:
\(Fb=dgv\\\\v=\frac{Fb}{dg} \\\\v=\frac{58.8 N}{(1 000 kg/m^{3} )(9.8m/s^{2} )}\\\\v=0.006m^{3}=6*10^{-3} m^{3}\)
Now, in order to give a more reaader friendly result, we may convert the volume from cubic meters to cubic certimeters by multiplying by 10³:
\(6*10^{-3} *10^{3} m^{3}=6cm^{3}\)
A specimen of steel 100mm diameter with a guage length of 100mm tested a distruction it has an extension of 0.50mm under a load of 70KN and the load at elastic limit is 10KN the maximum load is 140KN the total extension of fracture is 58mm and the diameter at the neck is 16mm . find the Stress of elastic limit, young modulus, percentage enlogation, percentage reduction in area , and ultimate tensile stress?
Answers
The stress at elastic limit is 1.27 N/mm^2, the Young's modulus is 254 N/mm^2, the percentage elongation is 57.5%, the percentage reduction in area is 97.44%, and the ultimate tensile stress is 696.67 N/mm^2.
How to calculate the valuesStress = Force / Area
Young's modulus = Stress / Strain
Percentage elongation = (extension / gauge length) x 100%
Percentage reduction in area = [(original area - area at neck) / original area] x 100%
Ultimate tensile stress = Maximum load / Area
Diameter of specimen = 100 mm
Gauge length = 100 mm
Extension at 70 KN load = 0.50 mm
Load at elastic limit = 10 KN
Maximum load = 140 KN
Total extension at fracture = 58 mm
Diameter at neck = 16 mm
We can calculate the area of the specimen as follows:
Area = π/4 x d^2
Area = π/4 x (100 mm)^2
Area = 7853.98 mm^2
The stress at elastic limit can be calculated as:
Stress = Load / Area
Stress = 10 KN / 7853.98 mm^2
Stress = 1.27 N/mm^2
The Young's modulus can be calculated as:
Strain = Extension / Gauge length
Strain = 0.50 mm / 100 mm
Strain = 0.005
Stress = Load / Area
Load = Stress x Area
Load = 1.27 N/mm^2 x 7853.98 mm^2
Load = 9982.16 N
Young's modulus = Stress / Strain
Young's modulus = 1.27 N/mm^2 / 0.005
Young's modulus = 254 N/mm^2
The percentage elongation can be calculated as:
Percentage elongation = (extension / gauge length) x 100%
Percentage elongation = (58 mm - 0.50 mm) / 100 mm x 100%
Percentage elongation = 57.5%
The percentage reduction in area can be calculated as:
Original area = π/4 x (100 mm)^2 = 7853.98 mm^2
Area at neck = π/4 x (16 mm)^2 = 201.06 mm^2
Percentage reduction in area = [(original area - area at neck) / original area] x 100%
Percentage reduction in area = [(7853.98 mm^2 - 201.06 mm^2) / 7853.98 mm^2] x 100%
Percentage reduction in area = 97.44%
The ultimate tensile stress can be calculated as:
Area at neck = π/4 x (16 mm)^2 = 201.06 mm^2
Ultimate tensile stress = Maximum load / Area
Ultimate tensile stress = 140 KN / 201.06 mm^2
Ultimate tensile stress = 696.67 N/mm^2
Therefore, the stress at elastic limit is 1.27 N/mm^2, the Young's modulus is 254 N/mm^2, the percentage elongation is 57.5%, the percentage reduction in area is 97.44%, and the ultimate tensile stress is 696.67 N/mm^2.
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John plans to deposit $1000 at the end of next year into an account that earns 10% year. Further, he estimates that his deposits will increase by $100 per year for only 10 years thereafter, then cease. The closest equivalent present worth is: less than $8,000 between $8,000−8,300 Between $8,300−$8,600 Higher than $8,600
Answers
The closest equivalent present worth of John's deposits is less than $8,000.
To determine the closest equivalent present worth of John's deposits, we need to calculate the present value of the cash flows he will make.
The deposit of $1000 at the end of the next year can be considered a future value (FV). We need to calculate its present value (PV) using the formula:
PV = FV / (1 + r)^n
Where:
FV = $1000
r = interest rate = 10% = 0.10
n = number of years = 1
PV = $1000 / (1 + 0.10)^1 = $909.09
Next, we calculate the present value of the increasing deposits of $100 per year for 10 years. These cash flows form an arithmetic progression with a common difference of $100.
Using the formula for the sum of an arithmetic progression, we can find the present value of these cash flows:
PV = (n/2) * (2a + (n-1)d)
Where:
n = number of terms = 10
a = first term = $100
d = common difference = $100
PV = (10/2) * (2*100 + (10-1)*100) = 5 * (200 + 9 * 100) = $5,500
Now, we can sum up the present values of both cash flows:
PV = $909.09 + $5,500 = $6,409.09
The closest equivalent present worth is between $8,000 - $8,300. Since the calculated present value is lower than $8,000, the closest equivalent present worth is less than $8,000.
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Which tool helps you measure the success of your website?
Answers
Answer:
Google AnalYtics.
Will targets be used and if so, where will they be positioned in terms of discrete distances from the shooter (e. G. , 15m, 25m, 300m and B00m)? Do NOT provide a range of distances (e. G. , "spanning the operational envelope" or "from 15m - 600m")
Answers
Yes, targets will be used, and they will be positioned at discrete distances from the shooter. The exact distances at which the targets will be positioned will depend on the type of shooting activity and the range being used.
In general, the distances at which targets are positioned can vary widely. For example, in pistol shooting competitions, targets are often positioned at a distance of 25 meters. In long-range rifle shooting competitions, targets may be positioned at distances of 500 to 1000 meters.
In military and law enforcement training scenarios, targets may be positioned at a variety of distances to simulate different types of scenarios. For example, targets may be positioned at 100 meters to simulate engaging targets from a distance, or at 25 meters to simulate close-quarters combat. In short, the positioning of targets will depend on the specific requirements of the shooting activity or training scenario.
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Cloud computing offers many significant advantages and opportunities for expansion, but it has its disadvantages as well. Which of the following options is the cheapest and simplest alternative to a cloud?a.Leased lineb.Remote access connectionc.internetd.VPN (virtual private network)
Answers
Note that cloud computing offers many significant advantages and opportunities for expansion, but it has its disadvantages as well. The option is the cheapest and simplest alternative to a cloud: Remote Access Connection. (Option B)
What is a Remote Access Connection?Remote access connections allow users to connect to a remote network or computer over the internet, allowing them to access resources and applications remotely.
This can be an effective and cost-effective way to access resources and applications without the need for cloud infrastructure.
Remote access works simply by connecting the remote user to the host computer through the internet. It does not necessitate any extra hardware. Distant access software must instead be downloaded and installed on both the local and remote PCs.
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determine the force in member ed of the truss, and state if the member is in tension or compression. express your answer to three significant figures and include the appropriate units. enter negative value in the case of compression and positive value in the case of tension.
Answers
An assemblage of beams or other components joined by nodes to form a rigid structure is known as a truss also state if the member is in tension or compression.
A truss is a structure that, according to engineering definition, "consists of just two-force members, where the members are arranged so that the assembly as a whole acts as a single entity."
[2] The term "two-force member" refers to a structural element where only two locations are subject to force. Trusses are normally made up of five or more triangular units made of straight members whose ends are joined at joints known as nodes, despite the fact that this strict definition permits the members to be united in any form and stable arrangement.
Glider AE: Uniformly distributed load on
beam CD: 150(12)(4/12) + 490(18.3/144) = 662.3 lb/ft.
Uniformly distributed load=490(32.7/144)=111.3 lb/ft concentrated load at c=8279 lb concentrated load at A and E=[150(6)(4/12)+490(18.3/144)]
(25/2)=4529lb
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individually, please complete the following: Define Requirements WBS (3 levels) WBS Dictionary for 10 items A document explaining your quality management plan Quality Assurance tests you would complete Quality Control measures you would use to test your quality assurance Situation: You have been asked to create a software for a bank to manage its accounting entries and submit documents to CRA for tax purposes. The PM that was supposed to lead the project left the company. You have 1 year to complete the project or face a $10,000 penalty per day. The primary objectives are: Train all employees on the new software Focus on daily bank transactions Reporting to CRA on a weekly basis Encrypt the personal data of customers Integrate into the bank mobile app Manage a group of 15 developers, 25 QA and 5 functional staff HINT: Read the basic concepts of SDLC. You are not expected to know Agile but you should be able to think about how to run this project in an optimal manner to meet the deadline. Submit 1 document in PDF format. Please provide a title page with all project member names and student numbers.
Answers
Requirements:Requirements are what the software system should do and how it should behave, it will assist you in organizing the project more effectively.
The functional and non-functional requirements should be documented. Functional requirements outline what the system is supposed to do, while non-functional requirements outline how the system should behave.
WBS (3 Levels):WBS (work breakdown structure) is a hierarchical chart that outlines the project's components and subcomponents. Each level of the WBS represents a lower level of detail, it is used to break down the entire project into small and manageable work components.
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In a transmission system a 0 is encodded as 00000 and 1 as 11111 and these bits are sent through the binary symmetric channel where the bit error probality is p. At the receiving end the decoding is done by majority voting. What is the probability of error Pe assuming p= 0.1? When 0 is encoded as 0000000 and 1 as 1111111 and the decoding is done again by majority voting, what is the value of PE for p = 0.1?
Answers
The average probability error when p is 0.1 is 0.028.
What is probability error?An error probability is the likelihood that a given probabilistic testing procedure will result in a type I or type II error. In other words, it is the frequency with which an error occurs in a hypothetical infinite repetition of the procedure.The error probability for a single bit is $q$.The probability that a bit is correctly decoded is $1-q$.The likelihood of no error is $(1-q)n$, where $n$ is the number of bits.As a result, the probability of an error is $1-(1-q)n$.
So here,
Cross probability (p) = 0.
The correctly decoding probability is,
P = (³C₀)P⁰(1 - P)³⁻⁰ + (³C₁)P¹(1 - P)³⁻¹
= (0.9)³ + 3(0.9)(0.1)²
= 0.972
Therefore average probability error is 1-0.972.
= 0.028
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Which of the following sensors is used to provide suspension control module with feedback regarding vehicle cornering forces?
Question content area bottom
Part 1
A.
lateral accelerometer sensor
B.
vehicle speed sensor
C.
yaw rate sensor
D.
pressure sensor
Answers
Answer:
A
Explanation:
A city is experiencing a windstorm. The wind has blown away some of the houses in that city. What load bearing factor did the architects of these
houses not calculate correctly?
OA material strength
OB. elasticity
oc design load
OD. safety factor
Answers
Answer:
oa
Explanation:
Answer:
safety factor
Explanation:
i got it correct on the test
consider a u-tube manometer connected to a pitot-static tube measuring the airspeed of an airplane. assume that the pitot-static tube is pointed directly into the incoming flow of air. far upstream of the airplane, the air is at standard sea level conditions. the manometer fluid is water and the difference in the water levels is 1.3 inches. determine the true airspeed of the airplane in ft/s.
Answers
The true airspeed of the airplane is 61.65 m/s. We can convert this to ft/s by multiplying by 3.28:61.65 m/s x 3.28 ft/m = 202.10 ft/s (answer).
In this question, we're given that we have a U-tube manometer connected to a pitot-static tube measuring the airspeed of an airplane. Assume that the pitot-static tube is pointed directly into the incoming flow of air. Far upstream of the airplane, the air is at standard sea-level conditions. The manometer fluid is water, and the difference in the water levels is 1.3 inches. We have to determine the true airspeed of the airplane in ft/s. For this question, we will use the formula for determining velocity by Bernoulli's equation. Bernoulli's equation relates the pressure of a fluid to its speed and the height of a column of fluid above a reference point. The equation is:
P1 + 0.5ρv1² + ρgh1 = P2 + 0.5ρv2² + ρgh2
Where:
P1 and P2 are the pressures at points 1 and 2ρ is the density of the fluidv1 and v2 are the speeds of the fluid at points 1 and 2h1 and h2 are the heights of the fluid columns at points 1 and 2 (measured from a common reference point)g is the acceleration due to gravity Since the point far upstream of the airplane is at standard sea level conditions, we can use this value to determine the density of air.
The density of air at sea level is approximately 1.225 kg/m³ (or 0.002378 slugs/ft³). We can use the height difference given to us to determine the pressure difference between the two points in the manometer:
ΔP = ρgh = (1000 kg/m³) (9.81 m/s²) (0.03302 m) = 325.7 Pa
We can use this pressure difference in Bernoulli's equation to determine the speed of the fluid at the point where the pitot-static tube is located:
P1 + 0.5ρv1² = P2 + 0.5ρv2² + ΔPv1² = (P2 - P1)/(0.5ρ) + ΔP/ρv1² = (101325 Pa - 0 Pa)/(2(1.225 kg/m³)) + 325.7 Pa/(1.225 kg/m³) = 21811.7 Pa/kgv1 = sqrt(2(21811.7 Pa/kg)/1.225 kg/m³) = 61.65 m/s (true airspeed)
Therefore, the true airspeed of the airplane is 61.65 m/s. We can convert this to ft/s by multiplying by 3.28:61.65 m/s x 3.28 ft/m = 202.10 ft/s (answer).
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The true airspeed of the airplane is approximately 89.07 ft/s.
In a U-tube manometer connected to a pitot-static tube, the pressure difference between the two arms of the manometer represents the dynamic pressure of the air. The dynamic pressure is related to the airspeed of the airplane.
To determine the true airspeed, we can use the equation:
True Airspeed = √((2 * Δh * g) / ρ)
Where:
Δh is the difference in the water levels in the manometer (1.3 inches or 0.10833 ft),
g is the acceleration due to gravity (32.2 ft/s^2), and
ρ is the density of water (62.43 lb/ft^3).
Plugging in the given values, we get:
True Airspeed = √((2 * 0.10833 * 32.2) / 62.43) ≈ 89.07 ft/s.
The true airspeed of the airplane, based on the given information, is approximately 89.07 ft/s. This calculation assumes that there are no other factors affecting the measurement, such as wind or temperature variations
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Identify this instrument.
Refracting telescope
Reflecting telescope
Microscope
Radio Telescope
Answers
Average setup time on a certain production machine is 5.0 hr. Average batch size is 52 parts, and average operation cycle time is 4.2 min. The reliability of this machine is characterized by mean time between failures of 37 hr and a mean time to repair of 55 min.
(a) If availability is ignored, what is the average hourly production rate of the machine.
(b) Taking into account the availability of the machine, determine its average hourly production rate.
(c) Suppose that availability only applied during the actual run time of the machine and not the setup time. Determine the average hourly production rate of the machine under this scenario.
Answers
(a) The machine's average hourly production rate without considering availability is 6.02 parts/hr.
(b) The machine's average hourly production rate, taking into account availability, is 6.17 parts/hr.
(c) The machine's average hourly production rate when only available during run time is 5.71 parts/hr.
How to solve calculations on a production machine?(a) To calculate the average hourly production rate of the machine without considering availability, we need to first calculate the total time it takes to produce a batch of 52 parts.
Total time = (setup time) + (operation time per part x batch size)
Total time = 5.0 hr + (4.2 min/part x 52 parts)/60 min/hr
Total time = 5.0 hr + 3.64 hr
Total time = 8.64 hr
Average hourly production rate = Batch size / Total time
Average hourly production rate = 52 parts / 8.64 hr
Average hourly production rate = 6.02 parts/hr
Therefore, the average hourly production rate of the machine without considering availability is 6.02 parts/hr.
(b) To calculate the average hourly production rate of the machine taking into account availability, we need to first calculate the machine's availability using the mean time between failures (MTBF) and mean time to repair (MTTR) values.
Availability = MTBF / (MTBF + MTTR)
Availability = 37 hr / (37 hr + 0.92 hr)
Availability = 0.975 or 97.5%
Now we can calculate the total time that the machine is available for production:
Available time = Total time x Availability
Available time = 8.64 hr x 0.975
Available time = 8.42 hr
Average hourly production rate = Batch size / Available time
Average hourly production rate = 52 parts / 8.42 hr
Average hourly production rate = 6.17 parts/hr
Therefore, the average hourly production rate of the machine taking into account availability is 6.17 parts/hr.
(c) If availability only applies during the actual run time of the machine and not the setup time, we need to adjust the available time calculation:
Available time = (operation time per part x batch size) / 60 min/hr x Availability
Available time = (4.2 min/part x 52 parts) / 60 min/hr x 0.975
Available time = 4.11 hr
Total time = Available time + setup time
Total time = 4.11 hr + 5.0 hr
Total time = 9.11 hr
Average hourly production rate = Batch size / Total time
Average hourly production rate = 52 parts / 9.11 hr
Average hourly production rate = 5.71 parts/hr
Therefore, the average hourly production rate of the machine taking into account availability only during run time is 5.71 parts/hr.
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Which term best describes the component that touches the edge of a cam?
Answers
Follower is the component that touches the edge of a cam.
What is CAM computer aided manufacturing?Automating a production process via the use of software and computer-controlled equipment is known as computer aided manufacturing (CAM). According to that definition, a CAM system requires the following three elements to operate: Software that creates toolpaths to instruct a machine on how to build a product.Applications for CAD/CAM are used to develop products and control manufacturing processes, particularly CNC machining. Models and assemblies made with CAD software, such as Fusion 360, are used by CAM software to develop toolpaths that operate machine machines to turn designs into actual components.The use of software to manage machine tools during the creation of work parts is known as computer-aided manufacturing, also referred to as computer-aided modelling or computer-aided machining.Learn more about Computer aided manufacturing refer to :
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Water that has evaporated returns to earth as
Answers
Answer:
rain
Explanation:
evaoration causes clouds
clouds condense and rain
Answer:
rain
Explanation:
Two current coils are installed. What is their function and why
necessary to install three coils?
Answers
Answer:
What is the function of the coil?
coil, in an electric circuit, one or more turns, usually roughly circular or cylindrical, of current-carrying wire designed to produce a magnetic field or to provide electrical resistance or inductance; in the latter case, a coil is also called a choke coil (see also inductance).
Explanation:
Brainliest me
.If aligned and continuous carbon fibers with a diameter of 6.90 micron are embedded within an epoxy, such that the bond strength across the fiber-epoxy interface is 17 MPa, and the shear yield strength of the epoxy is 68 MPa, compute the minimum fiber length, in millimeters, to guarantee that the fibers are conveying an optimum fraction of force that is applied to the composite. The tensile strength of these carbon fibers is 3960 MPa.
Answers
Answer:
the required minimum fiber length is 0.80365 mm
Explanation:
Given the data in the question;
Diameter D = 6.90 microns = 6.90 × 10⁻⁶ m
Bond strength ζ = 17 MPa
Shear yield strength ζ\(_y\) = 68 Mpa
tensile strength of carbon fibers \(6t_{fiber\) = 3960 MPa.
To determine the minimum fiber length we make use of the following relation;
L = (\(6t_{fiber\) × D) / 2ζ
we substitute our given values into the equation;
L = ( 3960 × 6.90 × 10⁻⁶) / (2 × 17 )
L = 0.027324 / 34
L = 0.000803647 m
L = 0.000803647 × (1000) mm
L = 0.80365 mm
Therefore, the required minimum fiber length is 0.80365 mm
The current in the wires of a circuit is 90 milliAmps. If the resistance of the circuit were doubled (with no change in voltage), then its new current would be _____ milliAmps.
Answers
Answer:
\(I = 45mA\)
Explanation:
Given
\(I = 90mA\) --- Current
Required
Determine the new current when resistance is doubled
Using \(V = IR\)
Initially, we have:
\(V = 90mA * R\)
When resistance is doubled and voltage remains unaltered, we have:
\(V = I* 2R\)
2R represents the new resistance and I represents the new current
Equate both values of V
\(90mA * R = I* 2R\)
Make I the subject
\(I = \frac{90mA * R}{2R}\)
\(I = \frac{90mA }{2}\)
\(I = 45mA\)
The new current is 45milliAmps
A line drawn from the leading edge to the trailing edge of an airfoil and equidistant at all points from the upper and lower contours is called the
Answers
A line drawn from the leading edge to the trailing edge of an airfoil and equidistant at all points from the upper and lower contours is called the mean camber line.
The mean camber line is a very important concept in aerodynamics as it defines the overall shape of an airfoil and plays a key role in determining its aerodynamic characteristics, such as lift and drag. It is used to calculate the maximum thickness, maximum camber, and location of the maximum camber of an airfoil.
The mean camber line is typically used as a reference line when designing airfoils, and different shapes can be created by modifying it with specific curves and angles.
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segregation is segregation required by law and that results from government discrimination.
Answers
Yes, segregation can be required by law and can result from government discrimination. Historically, there have been laws that enforced segregation, such as Jim Crow laws in the United States.
These laws were created and enforced by the government, which discriminated against certain groups of people, particularly African Americans. This led to institutionalized segregation in many aspects of life, including education, housing, and public accommodations. So, segregation can be a result of government discrimination and is often enforced by laws that discriminate against certain groups of people.
Segregation is the separation of people based on their race, ethnicity, or other characteristics. When segregation is required by law and results from government discrimination, it is known as "legal segregation" or "de jure segregation." In this case, the government enacts and enforces laws that mandate the separation of different groups, leading to unequal treatment and limited opportunities for certain groups. Legal segregation has been a prominent issue in many countries throughout history, including the United States during the era of Jim Crow laws. These laws enforced racial segregation and perpetuated inequality between white and Black Americans until the Civil Rights Movement successfully challenged and dismantled them.
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Segregation, in the context of law and government discrimination, refers to the enforced separation of different racial or ethnic groups by legal means. This practice is often based on the notion that one group is superior to another, leading to inequality and social stratification.
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A wedge would be best described as
A wheel and axle used to cTeate a rotary motion
A lever arm fixed to a shaft
A triangle shaped tool that functions as an inclined plane
A rectangular shaped tool that functions as a pulley
Answers
C. A triangle shaped tool that functions as an incline ld plane
Answer:
A rectangular shaped tool that functions as a pulley.
Explanation:
i beleive
Which of the following is not a runtime exception in java?
a. NullPointerException
b. ArraylnderOutOfBoundException
c. ArithmeticException
d. ClassNotFoundException
Answers
Option (d) ClassNotFoundException is not a runtime exception in Java. ClassNotFoundException is a checked exception in Java, which means that it must be either handled or declared in the method signature using the throws keyword.
Runtime exceptions are a type of exception that can occur at any point during program execution and are not checked at compile time. ClassNotFoundException, on the other hand, is a checked exception that occurs when the JVM tries to load a class at runtime, but the class cannot be found or accessed. This can occur when the class file is missing, the class is in a different package, or there is a problem with the classpath. Checked exceptions are typically used for errors that can be anticipated and handled by the program, unlike runtime exceptions which usually indicate a bug or error in the program logic. The other options - a. NullPointerException, b. ArraylnderOutOfBoundException, and c. ArithmeticException - are all runtime exceptions in Java.
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World Without Engines: Explain what todays world without engines would be like? How would it change your life? The world? The way we do things? Please write in paragraph format and include introduction, body, and conclusion. DON'T ANSWER UNLESS YOU HAVE THE ANSWER!!!!!!!!! I WILL MARK BRAINLYEST
Answers
Answer:
the world will not be the same it will change dramticily and
things will not be the same
Explanation:
After cutting a PVC pipe you should use a
to debure the pipe
Answers
Answer:
Deburring Tool
Explanation:
A deburring tool is used in order to debur the PVC pipes. They are mostly used for the plastic pipes.
After the PVC pipes are cut, there are burrs on the pipe surface. To remove these burrs, a deburring tool is used. It removes the burrs form the edges of the PVC pipes that results from grinding, cutting, milling, drilling, etc.
The deburring tools are made from high speed steels.
14. Low resistance combined with current flow is the description of a/an
A. heater
B. impedance mismatch.
C. electric shock.
D. electrical circuit.
Answers
The term
refers to using more than one method to join structural body parts on a vehicle.
a. plasma arc cutting
c. brazing
b. hybrid bonding
d. soldering
Answers
I’m pretty sure I’m right I did this last week lol.
studocu knowing that the allowable stress in section a-a is 75 mpa, determine the largest force that can be exerted by the press shown
Answers
To determine the largest force that can be exerted by the press, knowing that the allowable stress in section A-A is 75 MPa, follow these steps:
Step 1: Identify the allowable stress
The allowable stress in section A-A is given as 75 MPa (megapascals).
Step 2: Determine the area of section A-A
To find the force, you need to know the area of the section A-A. This information should be provided in the problem statement or the diagram of the press. If the area is not given, you will need to calculate it using the dimensions of section A-A (e.g., if it's a circular or rectangular section).
Step 3: Calculate the maximum force
Use the formula: Force = Allowable Stress x Area
Substitute the given values into the formula: Force = 75 MPa x Area of section A-A
Step 4: Convert the force to the appropriate unit
If necessary, convert the force from newtons (N) to another unit (e.g., pounds, kilonewtons, etc.), depending on the context of the problem.
The largest force that can be exerted by the press is the result obtained from the calculation in Step 3.
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An ideal neon sign transformer provides 9130 V at 51.0 mA with an input voltage of 240 V. Calculate the transformer's input power and current.
Answers
Answer:
Input power = 465.63 W
current = 1.94 A
Explanation:
we have the following data to answer this question
V = 9130
i = 0.051
the input power = VI
I = 51.0 mA = 0.051
= 9130 * 0.051
= 465.63 watts
the current = 465.63/240
= 1.94A
therefore the input power is 465.63 wwatts
while the current is 1.94A
the input power is the same thing as the output power.
why is the sky blue .... why are they called apartments if there built together .... why does milk go bad in our fridge but not in cows
Answers
Answer:
The sky is blue because light is bended on the earth's atmosphere. Because some people are dumb (lol jk sorry I don't really know that one) Because cows have special chemicals
Explanation:
Answer:
um.
Explanation:
um wht. hixudhdjdkidjdjdjuridjdj