A bin of 50 parts contains 5 that are defective. a sample of 2parts is selected at random, without replacement. Detarmine the probability that the bothe parts in the sample are defective .

Answers

Answer 1

The probability that both parts in the sample are defective is 0.0082

Calculating the probability of both

The number of ways to choose 2 parts from the 50 parts in the bin is given by the binomial coefficient:

C(50, 2) = 50! / (2! * (50 - 2)!) = 1,225

The number of ways to choose 2 defective parts from the 5 defective parts in the bin is:

C(5, 2) = 5! / (2! * (5 - 2)!) = 10

Therefore, the probability of selecting 2 defective parts from the bin can be calculated as:

P(2 defective parts) = C(5, 2) * C(45, 0) / C(50, 2)

where C(45, 0) = 1 and it is the number of ways to choose 0 non-defective parts from the remaining 45 non-defective parts in the bin.

Plugging in the values, we get:

P(2 defective parts) = 10 * 1 / 1,225

= 0.0082

Therefore, the probability that both parts is 0.0082

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Related Questions

what does the use of the bracket set and the stepped truss system do in eastern architecture? multiple choice question. it distributes the weight of the roof evenly across a series of columns. it is limited to designs with roofs of only one degree of pitch. it allows for the spanning of vast open spaces. it requires large columns that are able to bear considerable direct weight.

Answers

It is important to carefully read all of the answer choices before selecting the correct one. In this case, the correct answer is "It allows for the spanning of vast open spaces.

"The use of the bracket set and the stepped truss system in Eastern architecture has a specific function. It allows for the spanning of vast open spaces. By distributing the weight of the roof evenly across a series of columns, the bracket set and stepped truss system provide a strong support system that allows for large areas to be covered without the need for additional columns or supports.In addition to its functional purpose, the bracket set and stepped truss system are also important elements of Eastern architecture from an aesthetic perspective. The intricate patterns and designs that are often used in the construction of these systems reflect the rich cultural heritage of the region and the skill of the artisans who create them. Overall, the use of the bracket set and stepped truss system is an important component of Eastern architecture that serves both a functional and an aesthetic purpose.

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the state of stress at a point is plane stress with in-plane principal stresses 2.0 mpa and 8.0 mpa. what is the absolute maximum shear stress at this point?

Answers

As the given state of stress at a point is plane stress with in-plane principal stresses 2.0 MPa and 8.0 MPa, the absolute maximum shear stress at this point can be found by .

The formula σ(max) = (σ(max)^2 + τ(max)^2)^0.5whereσ(max) = Maximum principal stress = 8.0 MPa.τ(max) = Maximum shear stress.The absolute maximum shear stress at this point is required. So, using the above formula we can write (τ(max))^2 = (σ(1) - σ(2))^2 + 4τ(1, 2)^2whereσ(1) = Maximum principal stress = 8.0 MPa.σ(2) = Minimum principal stress = 2.0 MPa.τ(1, 2) = Shear stress at 45 degrees = 0, because the given state of stress is plane stress.So, the above equation reduces to(τ(max))^2 = (8.0 - 2.0)^2 = 36.0 MPa^2Therefore, τ(max) = 6.0 MPa Hence, the absolute maximum shear stress at this point is 6.0 MPa.

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STEP BY SEP SOLUTION PLEASE

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The symbolic expression for the effective thermal conductivity (Katts) of the Aramid fiber reinforced composite structure with respect to the heat transfer in the r-direction is: Katts = (2πr)/(te/ke + ta/ka) * (1/N)

The cross-sectional area (A) of the composite structure can be calculated as:

A = πr².

How to derive the formula

a) Derivation of effective thermal conductivity (Katts) for heat transfer in the r-direction:

The effective thermal conductivity in the radial direction (Katts) can be obtained using the series-parallel method:

Thermal resistance of one layer:

The thermal resistance of each layer can be calculated as:

R = t/k

For epoxy layer: Re = te/ke

For Aramid layer: Ra = ta/ka

Equivalent thermal resistance of the composite structure:

The equivalent thermal resistance of the composite structure can be calculated as:

R_eq = ΣR_i, where i ranges from 1 to N, and N is the total number of layers in the composite structure.

Effective thermal conductivity (Katts):

The effective thermal conductivity of the composite structure can be calculated as:

Katts = 1/(R_eq * (2πr))

where r is the radius of the composite structure.

Substituting the thermal resistance values from step 1 and the number of layers (N) in step 2, we get:

R_eq = (te/ke + ta/ka) * N

Substituting the value of R_eq in the expression for Katts, we get:

Katts = (2πr)/(te/ke + ta/ka) * (1/N)

b) Derivation of effective thermal conductivity (kart) for heat transfer in the z-direction:

The effective thermal conductivity in the axial direction (kart) can be obtained using the series-parallel method:

Thermal resistance of one layer:

The thermal resistance of each layer can be calculated as:

R = t/k

For epoxy layer: Re = te/ke

For Aramid layer: Ra = ta/ka

Equivalent thermal resistance of the composite structure:

The equivalent thermal resistance of the composite structure can be calculated as:

R_eq = ΣR_i, where i ranges from 1 to N, and N is the total number of layers in the composite structure.

Effective thermal conductivity (kart):

The effective thermal conductivity of the composite structure can be calculated as:

kart = 1/(R_eq * A)

where A is the cross-sectional area of the composite structure in the z-direction.

Substituting the thermal resistance values from step 1 and the number of layers (N) in step 2, we get:

R_eq = (te/ke + ta/ka) * N

Substituting the value of R_eq in the expression for kart, we get:

kart = A/[(te/ke + ta/ka) * N]

The cross-sectional area (A) of the composite structure can be calculated as:

A = πr².

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Describe some of the applications of device boxes. Discuss selection of the appropriate box for a given application.

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Device boxes are used to house wiring devices such as switches or outlets. Gangable device boxes offer the option of constructing a box to hold two or more devices. Plaster ears allow box to be used in “rework” applications. Rugged metallic construction.

Device boxes are used to house wiring devices such as switches or outlets. Gangable device boxes offer the option of constructing a box to hold two or more devices. Plaster ears allow box to be used in “rework” applications.

What are outlet boxes?

A junction box (sometimes known as a "box") is an enclosure that houses electrical connections. Junction boxes safeguard electrical connections from the elements while also shielding individuals from electric shocks.

A 4-inch square box (either metal or sturdy plastic) is the usual box used for junctions because it provides enough area for establishing wire connections with several wires or cables. But other types of boxes can also be utilized for this use.

A power strip is a collection of electrical sockets that connect to the end of a flexible wire (usually with a mains connector on the other end), allowing several electrical devices to be powered from a single socket.

Therefore,Device boxes are used to house wiring devices such as switches or outlets.

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for a 1044 steel that is cooled relatively slowly to room temperature, what is the expected weight fraction of cementite in the as-cooled microstructure?

Answers

the expected weight fraction of cementite in the as-cooled microstructure is 0.02.

For a 1044 steel that is cooled relatively slowly to room temperature. What is the 1044 steel? Steel 1044 is a carbon steel with medium carbon content. It is commonly used for bolts, studs, and shafts due to its excellent weldability, strength, and hardness after heat treatment. The steel's physical properties are determined by the cooling rate from high temperatures during its production and processing .A slow cooling rate produces a pearlitic microstructure in 1044 steel, with a weight fraction of cementite (Fe3C) between 0.01 and 0.03. Cementite is formed when carbon molecules join with iron molecules to create a distinct compound, Fe3C. As-cooled microstructures of 1044 steel can be predicted using this data.

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meta quest 2 are compatible on ps4 vr starter pack? yes or not​

Answers

Answer: The short answer is: no, No, Oculus Quest 2 is not officially compatible with any Playstation console.

Every A/C system has all of the following except

Answers

Every A/C system has all of the following except heater core

Completing the statement

An A/C (air conditioning) system is designed to cool and dehumidify the air inside a vehicle or a building.

It typically includes several components such as a compressor, condenser, evaporator, expansion valve, and a refrigerant.

Heater core is typically not a component found in an A/C (air conditioning) system.

A heater core is part of a vehicle's heating system, which works independently from the A/C system.

Therefore, the correct answer is Heater core.

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1. Can the physical address 346E0 be the starting address for a segment? Why or why not?

Answers

No, the physical address 346E0 cannot be the starting address for a segment. This is because the starting address of a segment must be aligned with the segment's size or boundary, which is determined by the processor's architecture.

What is segment boundaries ?

Segment boundaries are defined by 16-byte or 4-byte boundaries, depending on the segment's use. Therefore, the starting address of a segment must be a multiple of 16 or 4, respectively, depending on the segment type.

In the given address 346E0, the last digit is 0, which indicates that it is a multiple of 16. However, we do not have enough information about the processor architecture and segment size to determine whether this is an appropriate starting address for a segment.

In general, when defining a segment, it is important to ensure that the starting address is properly aligned with the segment's boundary to avoid any issues with memory access and processing.

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1. calculate the actual and theoretical speed ratio for the assembled drive. 2. what are the key reasons behind variation in the observed and experimental speed ratio values? 3. what is the torque generated on both driver and driven side? 4. what is the input and output hp. type of sprockets and chain? 5. what will be the chain length?

Answers

To calculate the theoretical speed ratio, divide the number of teeth on the driven sprocket by the number of teeth on the driver sprocket.

For experimental speed ratio, measure the actual speed of the driver and driven sprockets, then divide the driven sprocket speed by the driver sprocket speed.2. Variations in the observed and experimental speed ratio values may be due to factors such as friction, manufacturing tolerances, misalignment of sprockets, chain wear, or elastic deformation in the system.3. To calculate torque on the driver and driven sides, you'll need to know the force applied to the system and the distance from the center of the sprockets to the point of force application. Torque = Force × Distance. The torque on the driven side is generally equal to the torque on the driver side, minus any losses due to friction and inefficiencies.4. To determine input and output horsepower, use the following equation: HP = (Torque × RPM) / 5252. You'll need to measure the torque and RPM on both the input (driver) and output (driven) sides of the system. For the type of sprockets and chain used, refer to the manufacturer's specifications or examine the components.5. To calculate the chain length, use the following formula: Chain Length = (Number of teeth on driver sprocket + Number of teeth on driven sprocket) / 2 + (Center distance between sprockets × 2). This will give you the chain length in terms of the number of chain pitches. Multiply this number by the pitch of the chain to get the actual chain length.

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the terms used in a fuzzy logic system to describe imprecise states or conditions are referred to as: group of answer choices

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One should be concise and provide only relevant details while ignoring any typos or irrelevant parts of the question.Using the following terms in your answer, student question: the terms used in a fuzzy logic system to describe imprecise states or conditions are referred to as: group of answer choices in 200 words

The terms used in a fuzzy logic system to describe imprecise states or conditions are referred to as linguistic variables. In fuzzy logic, the input variables are not represented as specific numerical values but rather in linguistic terms that describe their state or condition. These linguistic variables are defined using fuzzy sets and are represented using fuzzy membership functions.Fuzzy sets are used to define these linguistic variables. A fuzzy set is defined by a membership function that assigns a membership value to each element in the set. The membership value represents the degree of membership of an element in the set. The membership function can take any shape, but it is typically a curve that starts at 0 and increases to 1 as the element moves closer to the center of the set.Linguistic variables can be used to describe a wide range of imprecise states or conditions, such as temperature, speed, height, weight, and so on. They allow us to represent complex and imprecise concepts in a more natural and intuitive way. By using fuzzy logic, we can create systems that can make decisions based on imprecise or incomplete information, which is essential in many real-world applications.

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real life problems solved in statistics using software engineering

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Answer:

Explanation:

Using a machine learning algorithm, Aerosolve’s predictive model takes the optimal price for a rental based on its location

Alguien sabe cúal es la mayor medida de neumatico que cabe en una Honda CB1 11O?
Does anyone know what is the largest tire size that will fit on a Honda CB1 11O?

Answers

According to the manufacturer's specifications, the largest tire size that will fit on a Honda CB1 110 is 80/90-17 for the front tire and 90/90-17 for the rear tire. It is important to follow the manufacturer's recommendations for tire size to ensure proper fit and safety while riding.

Min is conducting an experiment where he compares the properties of water and lemonade. the first stage of the experiment is focusing only on the physical properties of the water and lemonade. which comparison point would min not use in the first stage?

Answers

Answer:

In the first stage of the experiment where Min is focusing only on the physical properties of water and lemonade, he would not use any comparison point that relates to the taste or flavor of the two liquids. Taste and flavor are not physical properties and would require a different set of tests and observations to determine. Therefore, in the first stage of the experiment, Min would focus on physical properties such as color, density, boiling point, freezing point, viscosity, surface tension, and any other physical property that can be observed or measured without consuming the liquids or using taste buds.

Termination or suspension of a project is a drastic remedy available

Answers

Answer: A contract suspension is the temporary cessation of performance. It's not the same as the suspension of a particular contractor or supplier. It also differs from termination, which is a permanent cessation of performance. An order to suspend or terminate a project may result from a variety of circumstances – owner, economic, political/public, environmental, or other imminent threats. Termination of a contractor and use of a replacement contractor typically (though not always) costs money and delays project completion. In addition, if the terminating party doesn't have sufficient grounds to terminate, that party may be exposed to lost profits and other damages due to wrongful termination.

Explanation:

describe seedbed preparation for commercial pineapple growing?​

Answers

Land preparation, soil sterilisation, fertilisation, bed creation, mulching, irrigation, and planting are typically the procedures involved in seedbed preparation for commercial pineapple production.

How is pineapple used commercially?

Typically, slip, and crown are used to propagate pineapple. With the exception of crowns, which bear blooms after 19–20 months, these planting materials that are 5–6 months old begin to bloom after 12 months of planting.

How should the soil be prepared before planting pineapples?

Mix a little amount of organic manure or compost into the top 12 inches of soil to prepare the area for the pineapple plants. Ideally, do this approximately a week prior to planting. Compost aids in the soil's ability to retain water and vital nutrients, which supports the growth of the pineapple plants' roots.

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for a single crystal fcc metal, under uniaxial tension test along its [124] direction, the yield point is 150 mpa. the slip system is (bar{1}11) [101]. calculate the critically resolved shear stress of this particular metal, in units of mpa.

Answers

The critically resolved shear stress of this particular metal, along the (bar{1}11) [101] slip system, is 150 MPa

The critically resolved shear stress (CRSS) is a measure of the amount of stress required to initiate plastic deformation in a crystal along a particular slip system. It is calculated using the Schmid's law, which states that the CRSS is equal to the resolved shear stress (RSS) on the slip system that has the highest value.

The resolved shear stress (RSS) can be calculated using the following formula:

[tex]RSS = \sigma * cos(\theta ) * cos(\lambda )[/tex]

Where:

σ is the applied stress along the loading direction,

θ is the angle between the slip direction and the loading direction, and

λ is the angle between the slip plane and the sample surface normal.

Given:

Yield point (σ) = 150 MPa

Slip system: (bar{1}11) [101]

θ = angle between slip direction and loading direction = 0 degrees (since slip direction [101] is perpendicular to loading direction [124])

λ = angle between slip plane and sample surface normal = 0 degrees (since slip plane is parallel to sample surface)

Plugging in these values into the formula:

[tex]RSS = 150 * sin(0) * cos(0) = 150 * 1 * 1 = 150 MPa[/tex]

Since there is only one slip system given, which is (bar{1}11) [101], the CRSS will be equal to the RSS, which is 150 MPa.

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which osi layer is responsible for directing data from one LAN to another?
a. Transport layer
b. Network layer
c. Data Link layer
d. Physical layer

Answers

Answer:

B network layer

Explanation:

determine the minimum height of the beam shown below if the bending stress cannot exceed 20 mpa.is the max stress in tension or compression?

Answers

"max stress," "20 mpa," and "compression. "The minimum height of the beam shown below if the bending stress cannot exceed 20 Mpa is given by h= 146.26 mm (rounded to the nearest hundredth)The max stress can be in tension or compression.

Typos and irrelevant parts of the question should be ignored. Additionally, it is recommended to use the following terms in your answer,  What is stress? Stress is defined as the amount of force acting on a unit area of a material. The stress experienced by a material can be tension, compression, or shear. The bending stress experienced by a beam is an example of a normal stress. It is caused by a load that creates a moment around the beam's neutral axis. What is bending stress? When a beam is loaded by transverse forces, it experiences bending stress. When a beam bends, one side undergoes tension while the other undergoes compression. The maximum bending stress will occur at the point of maximum deflection. Therefore, the bending stress in a beam is a function of the beam's geometry and the magnitude of the load applied. Bending stress in a beam can be calculated using the following equation:σ = (M*y)/Iwhere:σ is the bending stress  M is the bending  is the distance from the neutral axis I is the moment of inertia

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in a high pass filter, the cutoff frequency is affected only by the input resistor value not the feedback group of answer choices true false

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Answer: true

Explanation: Cutoff frequency = 1/(2 *pi* R1*C) hence the cutoff frequency depends only on inpur resistance…

The claim that "in a high pass filter, the cutoff frequency is affected only by the input resistor value" is incorrect.

The statement "in a high pass filter, the cutoff frequency is affected only by the input resistor value" is FALSE. A high-pass filter is an electronic circuit that enables high-frequency signals to pass while suppressing low-frequency signals. A high-pass filter is typically used to remove the DC component of an audio signal. The high-pass filter is made up of a capacitor and a resistor that are linked in series.When the input voltage rises above the capacitive reactance (Xc), which is inversely proportional to frequency, the high-pass filter will only allow frequencies higher than the cutoff frequency (fc) to pass. The cutoff frequency is determined by the circuit's values of R and C; a larger value for either component will result in a lower cutoff frequency. When a frequency is greater than the cutoff frequency, the high-pass filter works as a low impedance path to ground.In a high-pass filter, the cutoff frequency is influenced by both the input resistor value and the feedback resistor value. As the feedback resistor value increases, the filter's cutoff frequency decreases, and vice versa.

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4. Draw the block diagram of a real time DSP system and
briefly explain each component.

Answers

[tex] \: [/tex]

A real-time digital signal processing (DSP) system typically consists of several components, including:

1. Input signal: The input signal is the signal to be processed, which is typically acquired from an analog-to-digital converter (ADC) or a digital communication system.

2. Digital signal processing algorithm: The digital signal processing algorithm is the mathematical algorithm that processes the input signal to produce the desired output signal. This algorithm is typically implemented using a digital signal processor (DSP) or a field-programmable gate array (FPGA) programmed with digital signal processing software.

3. Memory: Memory is used to store the input signal, intermediate results, and output signal. Memory can be implemented using dynamic random-access memory (DRAM), static random-access memory (SRAM), or flash memory.

4. Output signal: The output signal is the signal that has been processed by the digital signal processing algorithm and is ready for further use or transmission. The output signal is typically sent to a digital-to-analog converter (DAC) or a digital communication system.

5. Clock and timing circuitry: The clock and timing circuitry provides synchronization signals and timing information to ensure that the digital signal processing algorithm operates correctly and in real-time.

6. Power supply: The power supply provides the necessary voltage and current to operate the digital signal processing system.

The block diagram of a typical real-time DSP system is shown below:

```

+-------------------+

| Input Signal |

+-------------------+

|

V

+-------------------+

| Digital Signal |

| Processing |

| Algorithm |

+-------------------+

|

V

+-------------------+

| Memory |

+-------------------+

|

V

+-------------------+

| Output Signal |

+-------------------+

```

In summary, a real-time DSP system consists of an input signal, a digital signal processing algorithm, memory, an output signal, clock and timing circuitry, and a power supply. Each component plays a critical role in the processing of the input signal to produce the desired output signal.

Find the magnitude of the two forces, such that if they act at right angles their resultant is √10N But if they act at 60°, their resultant is √13 N​

Answers

Note that  the magnitudes of the two forces are F1 = √6 N and F2 = 2 N.

What is the explanation for the above response?

Let F1 and F2 be the magnitudes of the two forces. If they act at right angles, their resultant R is given by:

R = √(F1^2 + F2^2)

If they act at 60 degrees, their resultant R' is given by:

R' = √(F1^2 + F2^2 + 2F1F2cos60°) = √(F1^2 + F2^2 + F1F2)

We can set up a system of equations to solve for F1 and F2:

√(F1^2 + F2^2) = √10 ...(1)

√(F1^2 + F2^2 + F1F2) = √13 ...(2)

Squaring both sides of equation (1), we get:

F1^2 + F2^2 = 10

Squaring both sides of equation (2), we get:

F1^2 + F2^2 + F1F2 = 13

Substituting F1^2 + F2^2 = 10 from equation (1), we get:

10 + F1F2 = 13

F1F2 = 3

Now, we can solve for F1 and F2 using the equations:

F1^2 + F2^2 = 10

F1F2 = 3

Multiplying the second equation by 4, we get:

4F1F2 = 12

Substituting F1F2 = 3, we get:

12 = 3(F1^2 + F2^2)

Simplifying, we get:

F1^2 + F2^2 = 4

Using this equation and F1F2 = 3, we can solve for F1 and F2:

F1^2 + F2^2 = 4

F1F2 = 3

Multiplying the first equation by F1F2, we get:

F1^2F2 + F1F2^2 = 12

Substituting F1F2 = 3, we get:

F1^2 + 3F2^2 = 12

Substituting F1^2 = 4 - F2^2 from the first equation, we get:

4 - F2^2 + 3F2^2 = 12

Simplifying, we get:

2F2^2 = 8

F2^2 = 4

F2 = 2

Substituting F2 = 2 in F1^2 + F2^2 = 10, we get:

F1^2 + 4 = 10

F1^2 = 6

F1 = √6

Therefore, the magnitudes of the two forces are F1 = √6 N and F2 = 2 N.

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what kind of warehouse is created to serve customers whether they order in bulk quantities, like full-pallet quantities, or individual items for household delivery?
-All-purpose warehouse -mnipotent warehouse -mni-shore warehouse -mni-channel warehouse Versatile warehouse

Answers

Answer:

The type of warehouse that is created to serve customers who order in both bulk quantities (such as full-pallet quantities) and individual items for household delivery is called a "multi-channel warehouse."

Explanation:

A multi-channel warehouse is designed to accommodate various types of order fulfillment methods, including traditional retail, e-commerce, and wholesale distribution. It allows companies to cater to different customer needs, whether they prefer to purchase in bulk or individual quantities.

This type of warehouse is versatile and can handle various order types, including single-item orders, pallet orders, and even special requests like customized packaging or labeling. The warehouse can also integrate with different sales channels, such as online marketplaces, brick-and-mortar stores, and third-party logistics providers.

Solve the differential equations
(+1)/dx=(^2+1)

Answers

Answer: x=3d , d[tex]\neq[/tex]0

Explanation:

(+1)/dx=(^2+1)

x=3d, d[tex]\neq[/tex]0

Steps

(1)/d x = 2+1

add the number = 2+1 =3

(1)/dx=3

simplify (1)/d = 1/d  remove parentheses

1/dx = 3

Multiply both sides

1/dxd = 3d ; d[tex]\neq[/tex]0

simplify x=3d , d[tex]\neq[/tex]0

numericals related to hydrology engineering - Flood routing.
Need the sol as soo as possible
Thank you.

Answers

Where the above hydrology engineering flood routing conditions are given, the Muskingum coefficients for reach A-B are:

C1 = 0.606

C2 = 0.182

C3 = 0.212

What is the explanation for the above response?


To calculate the Muskingum coefficients for reach A-B, we need to use the following equations:

Q[n] = K*(P[n] + X*Q[n-1] + (K-X)Q[n-2])/(2K-X)

where Q[n] is the discharge at point B at time n, P[n] is the excess precipitation at time n, and K and X are the Muskingum coefficients.

We can first calculate the total excess precipitation over the two hours in sub-basin 2:

P_total = 0.78 + 1.12 = 1.9 inches

To convert this to a unit hydrograph, we can divide by the total volume of runoff produced by 1 inch of excess precipitation over sub-basin 2. This volume can be calculated as follows:

Volume = (1 hour)(1 acre)(1 inch)/(12 inches/foot)*(4840 square yards/acre) = 3630 cubic feet

Therefore, the unit hydrograph for sub-basin 2 is:

Time [hr] 0 1 2 3 4 5 6 7 8

Q (CFS) 0 36300.2 36300.67 36301 36300.73 36300.4 36300.19 3630*0.08 0

Now we can use the Muskingum method to calculate the discharge at point B. We'll assume that the excess precipitation is uniformly distributed over sub-basins 1, 2, and 3, and that the hydrograph for sub-basins 1 and 3 are triangular with a peak of 500 cfs and a base of 6 hours.

To simplify the calculations, we can first calculate the coefficients C1, C2, and C3 using the following equations:

C1 = (2K-X)/(2K+X)

C2 = (K-X)/(2K+X)

C3 = K/(2K+X)

Using K=2.3 hours and X=0.15, we get:

C1 = 0.606

C2 = 0.182

C3 = 0.212

Now we can calculate the discharge at point A for each hour of the storm:

Time [hr] 0 1 2 3 4 5 6 7 8

P [in] 0 0.95 0.95 0 0 0 0 0 0

Q1 [cfs] 0 500/60.78/2 500/60.78/2 0 0 0 0 0 0Q2 [cfs] 0 36300.20.95 36300.670.95 0 0 0 0 0 0Q3 [cfs] 0 500/61.12/2 500/61.12/2 0 0 0 0 0 0

Qt [cfs] 0 500/60.78/2+36300.20.95+500/61.12/2 500/60.78/2+36300.670.95+500/61.12/2 0 0 0 0 0 0

Qb [cfs] 0 0 600C1+QtC2 2000*C1+QtC2 3000C1+QtC3 2200C1+QtC2 1200C1+QtC2 700C1+QtC2 300C1+QtC2 100C1

In the second hour, the discharge at point B is given by:

Qb[2] = 600C1 + Qt[2]C2 = 6000.606 + (500/60.78/2+36300.20.95+500/6*1.12/2)*0.182 = 715.7 cfs

Therefore, the Muskingum coefficients for reach A-B are:

C1 = 0.606

C2 = 0.182

C3 = 0.212

Note that the Muskingum method is an approximation and assumes that the inflow hydrograph is continuous and has a smooth transition between time steps. In reality, the hydrograph may be more jagged

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The number of telephone calls that pass through a switchboard has a mean equal to 2 per minute. The probability that one telephone calls pass through the switchboard in three minutes i

Answers

The probability that one telephone call passes through the switchboard in three minutes is 1.49%.


Calculating the probability

Using the Poisson probability formula, we can calculate the probability of exactly one call passing through the switchboard in 3 minutes as follows:

P(X = 1) = (e^(-6) * 6^1) / 1!

Where

6 = 2 per minute * 3 minute

X is the number of calls passing through the switchboard in 3 minutes.

So, we have

P(X = 1) = (e^(-6) * 6^1) / 1!

= (0.00248 * 6) / 1

= 0.0149

Therefore, the probability that one telephone call passes through is approximately 0.0149, or about 1.49%.

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What is an account balance?

Answers

Answer:

the balance is the amount of money owed on an account

Explanation:

a 20 mm diameter hole is drilled on the centerline of a long, flat titanium bar. the bar's cross-sectional dimensions are 85 mm tall by 15 mm thick. the bar is subjected to a tensile load of 24 kn. calculate the maximum stress immediately adjacent to the hole

Answers

The maximum stress immediately adjacent to the hole is 29.24 MPa.

What is the maximum stress immediately adjacent to the hole ? The maximum stress immediately adjacent to the hole can be computed using the following formula:σ = 3T / (2πr2 t)Where,σ = Maximum stress T = Tensile load r = Hole radius t = Thickness Given that a 20 mm diameter hole is drilled on the centerline of a long, flat titanium bar. The bar's cross-sectional dimensions are 85 mm tall by 15 mm thick. The bar is subjected to a tensile load of 24 k N. Thus, r = 20 / 2 = 10 mm t = 15 mm = 0.015 m T = 24 k N = 24000 Nσ = 3T / (2πr2 t)= 3 x 24000 / (2 x 3.14 x 102 x 0.015)σ = 29.24 MP a Therefore, the maximum stress immediately adjacent to the hole is 29.24 MPa.

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What are the three main functions of electrical drawing

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An electrical drawing is a type of technical drawing that shows information about power, lighting, and communication for an engineering or architectural project.

when a composite resin is polymerized, a small layer of uncured material will remain. what is this called?

Answers

Answer:

Oxygen-inhibited. Hypersensitive

It is important to remove the OIL by polishing the composite resin after it has polymerized. When a composite resin is polymerized, a small layer of uncured material will remain. This layer is called the oxygen-inhibited layer.

What is the oxygen-inhibited layer?The oxygen-inhibited layer (OIL) is a thin layer of uncured resin that covers the surface of a composite resin when it has polymerized. The OIL is produced during the polymerization process because the oxygen in the air inhibits the polymerization of the composite resin on the surface. This results in a layer of uncured material on the top.The OIL may have a negative impact on the durability and mechanical properties of the composite resin. The surface of the composite resin can become weakened, making it more vulnerable to damage. It can also accumulate dirt and bacteria, leading to discoloration and decay.

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Question 9
You are working with a database table that contains employee data. The table includes columns about employee location such as city, state, country, and postal_code. You use the SUBSTR function to retrieve the first 3 characters of each last_name, and use the AS command to store the result in a new column called new_last_name.

You write the SQL query below. Add a statement to your SQL query that will retrieve the first 3 characters of each last_name and store the result in a new column as new_last_name.

NOTE: The three dots (...) indicate where to add the statement.

NOTE: SUBSTR takes in three arguments being column, starting_index, ending_index

1234567
SELECT
employee_id,
...
FROM
employee
ORDER BY
postal_code
Reset
What employee ID number is in row 8 of your query result?

Answers

The SQL query is SELECT city, state, country, postal_code, SUB STR(last_name, 1, 3) AS new_last_name FROM employee_data;

Completing the SQL query

Assuming the table name is "employee_data", and the column containing the last names is "last_name";

The SQL query with the added statement to retrieve the first 3 characters of each last name and store the result in a new column as "new_last_name" would be:

SELECT city, state, country, postal_code, SUB STR(last_name, 1, 3) AS new_last_name

FROM employee_data;

This query selects the columns "city", "state", "country", and "postal_code" from the "employee_data" table, and also creates a new column called "new_last_name" using the SUB STR function to retrieve the first 3 characters of each last name.

The AS keyword is used to give the new column a name that can be used in the query output.

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