exercises d2.32 design a switch interface circuit that is negative logic. i.e., the input is low if the switch is pressed and high if the switch is not pressed.

Answer:

True

Explanation:

they put it through a process to be able to reuse it

Answer:

When two fair dice are rolled, 6×6=36 observations are obtained.

P(X=2)=P(1,1)=

36

1

​

P(X=3)=P(1,2)+P(2,1)=

36

2

​

=

18

1

​

P(X=4)=P(1,3)+P(2,2)+P(3,1)=

36

3

​

=

12

1

​

P(X=5)=P(1,4)+P(2,3)+P(3,2)+P(4,1)=

36

4

​

=

9

1

​

P(X=6)=P(1,5)+P(2,4)+P(3,3)+P(4,2)+P(5,1)=

36

5

​

P(X=7)=P(1,6)+P(2,5)+P(3,4)+P(4,3)+P(5,2)+P(6,1)=

36

6

​

=

6

1

​

P(X=8)=P(2,6)+P(3,5)+P(4,4)+P(5,3)+P(6,2)=

36

5

​

P(X=9)=P(3,6)+P(4,5)+P(5,4)+P(6,3)=

36

4

​

=

9

1

​

P(X=10)=P(4,6)+P(5,5)+P(6,4)=

36

3

​

=

12

1

​

P(X=11)=P(5,6)+P(6,5)=

36

2

​

=

18

1

​

P(X=12)=P(6,6)=

36

1

​

Therefore, the required probability distribution is as follows.

Then, E(X)=∑X

i

​

⋅P(X

i

​

)

=2×

36

1

​

+3×

18

1

​

+4×

12

1

​

+5×

9

1

​

+6×

36

5

​

+7×

6

1

​

+8×

36

5

​

+9×

9

1

​

+10×

12

1

​

+11×

18

1

​

+12×

36

1

​

=

18

1

​

+

6

1

​

+

3

1

​

+

9

5

​

+

6

5

​

+

6

7

​

+

9

10

​

+1+

6

5

​

+

18

11

​

+

3

1

​

=7

E(X

2

)=∑X

i

2

​

⋅P(X

i

​

)

=4×

36

1

​

+9×

18

1

​

+16×

12

1

​

+25×

9

1

​

+36×

36

5

​

+49×

6

1

​

+64×

36

5

​

+81×

9

1

​

+100×

12

1

​

+121×

18

1

​

+144×

36

1

​

=

9

1

​

+

2

1

​

+

3

4

​

+

9

25

​

+5+

6

49

​

+

9

80

​

+9+

3

25

​

+

18

121

​

+4

=

18

987

​

=

6

329

​

=54.833

Then, Var(X)=E(X

2

)−[E(X)]

2

=54.833−(7)

2

=54.833−49

=5.833

∴ Standard deviation =

Var(X)

​

=

5.833

​

=2.415

Answer:

V2= 1666.6 volts

Explanation:

Given data

primary turns N1= 100 turns

secondary turns N2= 1500 turns

primary voltage V1= 110 volts

secondary voltage V2= ?

We can solve for the output voltage using the turns ration sated below

  Turns Ratio = N1 / N2 = V1 / V2

Substituting our given data into the expression we have

100/1500= 110/V2

Making V2 subject of formula we have

V2= 110/(100/1500)=  1666.6 volts

V2= 1666.6 volts

Hence the secondary voltage is 1666.6 volts

Reduced installation costs – Installing WLANs might be considerably less expensive. Not every device on the network needs to have Ethernet wiring; just the wireless access points (WAP) must. Mobility - In terms of ease and flexibility, wired and wireless networks cannot be compared.

An access point, also known as a WLAN, is often found in a large building or workplace. It creates a wireless local area network. After connecting via Ethernet cable to a wired router, switch, or hub, an access point sends a WiFi signal to a predetermined area. A potential access point is any device or computer that users can use to access a network. A wireless LAN base station frequently serves as an access point. Despite the fact that access points are utilized in a number of wireless technologies, the phrase is most often used to describe a Wi-Fi network. making use of a wireless access point If traditional Ethernet cables cannot or would be difficult to connect, wireless access points are ideal for tying devices to networks.

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The initial velocity v0 required for the ball to just cross over the 3-m high fence can be determined using conservation of energy. The initial kinetic energy of the ball must be equal to the potential energy it has when it reaches the top of the fence.

Kinetic energy is the energy of motion. It is the energy associated with an object's motion or the motion of a particle. It is the energy associated with the movement of an object or particle, and can be transferred between objects or particles.

The initial kinetic energy of the ball is ½mv0², where m is its mass and v0 is its initial velocity. The potential energy of the ball at the top of the fence is mgh, where m is its mass, g is gravitational acceleration, and h is the height of the fence (3 m).

Therefore, the initial velocity v0 can be determined by equating the two equations:

½mv0² = mgh

v0² = 2gh

v0 = √(2gh)

Therefore, the minimum initial velocity v0 at which the ball must be kicked in order for it to just cross over the 3-m high fence is v0 = √(2gh), where g is the gravitational acceleration and h is the height of the fence.

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Answer: 5   6    7

Explanation:

you can run this in python and get this result

The output for the given program is: 5   6    7

This refers to the high-level language that was created and is used for data structures due to its OOP (object-oriented programming).

Hence, this python code asks for an array of numbers in the range of 3 and when that is found, it should make a display of the number and increment it.

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Answer:

A) - Yield strength before operation = 32 kpsi

- Ultimate Strength before operation = 49.5 kpsi

- Yield strength after operation = 61.854 kpsi

- Ultimate Strength after operation = 61.875 kpsi

- Percentage increase of yield strength = 93.29%

- Percentage increase of ultimate strength = 25%

B) ratio before operation = 1.55

Ratio after operation = 1

Explanation:

From online values of the properties of this material, we have;

Yield strength; S_y = 32 kpsi

Ultimate Strength; S_u = 49.5 kpsi

Modulus; m = 0.25

Percentage of cold work; W_c = 0.2

S_o = 90 kpsi

A) Let's calculate the strain(ε) from the formula;

A_o/A = 1/(1 - W_c)

A_o/A = 1/(1 - 0.2)

A_o/A = 1.25

Thus, strain is;

ε = In(A_o/A)

ε = In(1.25)

ε = 0.2231

Yield strength after the cold work operation is;

S'_y = S_o(ε)^(m)

Plugging in the relevant values;

S'_y = 90(0.2231)^(0.25)

S'_y = 61.854 kpsi

Percentage increase of yield strength = S'_y/(S'_y - S_u) × 100% = (61.854 - 32)/32 × 100% = 93.29%

Ultimate strength after the cold work operation is;

S'_u = S_u/(1 - W_c)

S'_u = 49.5/(1 - 0.2)

S'u = 61.875 kpsi

Percentage increase of ultimate strength = S'_u/(S'_u - S_u) × 100% = (61.875 - 49.5)/49.5 × 100% = 25%

B) Ratio of ultimate strength and yield strength before cold work operations is;

S_u/S_y = 49.5/32

S_u/S_y = 1.547

Ratio of ultimate strength and yield strength after cold work operations is;

S'_u/S'_y = 61.875/61.854 = 1

The ratio after the operation is less than before the operation, thus the ductility reduced.

Answer:

What is a dashboard?

A dashboard is an information management tool used to track KPIs, metrics, and key data points that are relevant to your business, department, or a specific process. Dashboards aggregate and visualize data from multiple sources, such as databases, locally hosted files, and web services. Dashboards allow you to monitor your business performance by displaying historical trends, actionable data, and real-time information.

Dashboards actually take their name from automobile dashboards and they are used in much the same way. For the sake of an analogy, let’s look at a car. There may be hundreds of processes that impact the performance of your vehicle if you look under the hood. Your car’s dashboard summarizes this using visualizations so you can focus on what matters most: safely driving your vehicle.

For businesses, there are hundreds of processes that impact your performance if you look ‘under the hood’, so to speak. And with a wealth of data made available these days, managing and extracting value from it can be difficult. Simplifying data analysis and distribution through tools like dashboards is a way to help businesses rev their engines and make smarter, better, faster data-driven decisions.

And a well designed dashboard levels up your approach to information management. Everyone in the business, regardless of role, has questions about your company performance, whether it be campaign performance, new wins, or churn rate. Dashboards bring everyone (and your metrics) together in one place to answer these questions.

Explanation:

The Thevenin voltage of the circuit is 9.75V.

To find the Thevenin voltage of the circuit, follow these steps:

Step 1: Identify the load resistor and remove it from the circuit.

In this circuit, there is no specific load resistor, so assume that we want to find the Thevenin voltage across the two terminals that are not connected to the 12V voltage source.

Step 2: Calculate the equivalent resistance of the circuit with the load resistor removed.

To find the equivalent resistance, we can use a combination of series and parallel resistor rules.

First, simplify the two parallel resistors R4 and R5 by using the formula:

1/Rp = 1/R4 + 1/R5

1/Rp = 1/2.2KΩ + 1/2.2KΩ

1/Rp = 2/2.2KΩ

Rp = 1.1KΩ

Now simplify the three resistors R1, R2, and Rp in series using the formula:

Rtotal = R1 + R2 + Rp

Rtotal = 100Ω + 47KΩ + 1.1KΩ

Rtotal = 48.2KΩ

Therefore, the equivalent resistance of the circuit with the load resistor removed is 48.2KΩ.

Step 3: Calculate the open-circuit voltage across the load resistor terminals.

To calculate the Thevenin voltage, determine the voltage across the two terminals that are not connected to the 12V voltage source. Do this by using voltage divider rule, where:

Vload = Vtotal × Rload / (Rtotal + Rload)

In this case, since load resistor is removed, set Rload to infinity, which means there is no current flowing through Rload and Vload is equal to the open-circuit voltage Vtotal.

Therefore, Vtotal = 12V × R2 / (R1 + R2 + Rp)

Vtotal = 12V × 47KΩ / (100Ω + 47KΩ + 1.1KΩ)

Vtotal = 9.75V

So the Thevenin voltage of the circuit is 9.75V.

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The LER of the same wing is 0.21 using the chord values.

In agriculture, the term "land equivalent ratio" refers to the proportion of land area needed for monoculture (single-crop farming) to yield the same amount of yield as intercropping (polyculture).

The FAO defines the land equivalent ratio (LER) as the ratio of the area used for sole cropping to the area used for intercropping in order to produce an equal amount of yield at the same management level. The result is the sole-crop yields multiplied by the sum of the intercropped yield fractions.

We must use a chord, so I'm assuming that it is 0.045 m in length.

The formula provides the Area.

Area = span × chord

Area = 0.245 × 0.045

Area = 0.011 m²

We then divide the area obtained by the glider weight we obtain the final result.

LER = area / weight

LER = 0.011 / 0.0523

LER = 0.21

As a result, the Lee of the same wing is 0.21 using the chord values.

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Answer:

The answer is "$10.12 million"

Explanation:

To find the price of the 36 dock doors only at the current rate, just use the cost index.  

\(C_n=C_k \times (\frac{I_n}{I_k})\\\\\)

     \(= 6 \times \frac{195}{140} \\\\= \$ \ 8 \ million\)

Its current cost of 36 dock doors is, thus,\(\$ \ 8 \ million\). To calculate the price for 48 dock doors, just use the second formula now:

\(\to (\frac{C_A}{C_B})=(\frac{S_A}{S_B})^{X}\\\\\to C_A=C_B \times (\frac{S_A}{S_B})^{X}\\\\\)

         \(=8 \times (\frac{48}{36})^{0.82}\\\\= \$ 10.12 \ million\)

Answer:

C: Viscosity, the resistance to flow that fluids exhibit

Explanation:

Did it on Edge :)

Answer:

C: Viscosity, the resistance to flow that fluids exhibit

Explanation:

Answer:

20.833 ohms

Explanation:

V = IR    re-arrange

V/I = R

250 / 12 = 20.833    ( 20  5/6)

Answer:

The main difference between a DIN and Yoke regulator is the way they are mounted. A DIN regulator is mounted directly to the cylinder, while a Yoke regulator is mounted to the cylinder using a yoke bracket. The DIN regulator is more compact and lightweight, while the Yoke regulator is more robust and can handle higher pressures. Additionally, the Yoke regulator is more adjustable and can be used for a wider range of applications.

Answer: Quantitative association rule.

Explanation:

The quantitative rules of association apply to the basic type of rules of association which exists as X and Y, with X and Y consisting of a collection of numerical and/or categorical attributes. Unlike general association laws, where both the left and right sides of the law should have categorical (nominal or discrete) attributes, a numerical attribute must be included in at least one attribute of the quantitative association rule (left or right).

True. Value Engineering (VE) is a systematic and formal process that can be applied to different phases of a construction project, including both the design phase and the construction phase.

While VE in the design phase focuses on identifying opportunities to reduce costs and improve the value of a project's design, VE in the construction phase focuses on identifying opportunities to reduce costs and improve the value of the project's construction process. During the construction phase, VE typically involves a review of the project's construction plans, specifications, and schedules to identify ways to optimize construction methods, materials, and equipment to reduce costs, increase efficiency, and improve the overall value of the project. The VE process may also involve identifying and evaluating alternative construction methods or materials that could provide cost savings or other benefits. Ultimately, the goal of VE in the construction phase is to ensure that the project is built in the most efficient, cost-effective manner possible, without sacrificing quality or performance.

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The written form of R in terms of unit vectors along the x- and y-axes shown are; R Cos θ and R sin θ respectively.

Given that the force R, which is the resultant of the unit vectors given has magnitude R;

It follows that the resolved form of unit vector, R along the x- and y- axes is;

Where, angle measure, θ = angle subtended by the resultant force with the horizontal.

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The program to convert MegaBytes to either Bytes, KiloBytes, GigaBytes, or TeraBytes is found in the attached image.

The program defines five helper functions to help the program do its work. The functions are:

Within the Main Program, a while loop is used to make sure the menu continues to be presented to the user until the user selects the option to quit.

The inner while loop makes sure the user enters an option within the menu.

Once the user enters an option to convert, the program requests the value to be be converted, in MegaBytes. then an if statement selects the correct conversion function.

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Answer:

Biochemistry

Explanation:

Hope this helps :)

Answer:

Biochemistry

Have an amazing day!

A runway identified as runway 27 serves operations oriented to the westward direction.

What are runways?

A runway is defined as an airport's paved surface. A runway is used for aircraft takeoff and landing operations. The most important runway, without a doubt, is the primary runway, which is the longest runway that has lighting and instrument landing aids. Runways are usually numbered based on their compass bearings, and they are designated L or R if two runways are close together but not parallel. It's worth noting that the numbers don't signify the degree to which the runway is off of a north-south heading, but rather the runway's magnetic bearing.  

How to identify the approximate direction of operations from the runway designation?

A runway identified as runway 27 serves operations oriented to the westward direction. The runway numbering system is used to determine the runway direction, which is based on its magnetic direction from 0 to 359 degrees. These numbers are used to designate runway headings in tens, as well as for headings within ten degrees. Runway 27 would be the one with the magnetic heading of approximately 270 degrees (270-279). As a result, an aircraft taking off or landing on runway 27 would travel in an approximately westward direction.

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A fabric-based domed structure can last for approximately 20 to 30 years with proper maintenance and care.

The lifespan of a fabric-based domed structure can vary depending on several factors. The quality of the fabric material, the structural design, environmental conditions, and maintenance practices all play a role in determining its longevity. High-quality fabrics made from durable materials, such as architectural-grade PVC or PTFE-coated fiberglass, tend to have a longer lifespan. Regular inspections, cleaning, and repairs are essential to ensure the integrity of the fabric and the structural components. Proper tensioning and periodic maintenance can help prevent issues such as sagging, tears, or UV degradation, which can affect the structure's lifespan.

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The question can be approached using the concept of present value of an annuity of $1. The equation for present value of an annuity of $1 is:

PV = A x [(1 - (1 + i)^-n) / i]

FV = 1 x (1 + i ) n

Now, consider the given information: If one robot would prevent injury to soldiers or loss of equipment valued at $1.5 million per year, it would provide an annual payment of $1.5 million. The recovery period is 4 years at 8% per year.The interest rate is 8% and the number of periods is 4 years or 4 periods. Substituting these values in the equation for present value of an annuity of $1, we get:

PV = 1.5 x 10^6 x [(1 - (1 + 0.08)^-4) / 0.08]PV = 1.5 x 10^6 x

[(1 - 0.6355) / 0.08]PV = 1.5 x 10^6 x 8.0293PV = $12,043,950

The military could afford to spend

$12,043,950

now on the robot and still recover its investment in 4 years at 8% per year.

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Answer:

mark me as a brainleast

Explanation:

209781

Answer:

For most uses you'll want your water heated to 120 F(49 C) In this example you'd need a demand water heater that produces a temperature rise and it will take about 2 hours

When the process is in control but does not meet specification, it is referred to as a special cause error.

In statistical process control, a process is considered to be in control when it operates within the defined limits and shows only random variations. However, when a process is in control but does not meet the desired specifications, it indicates the presence of a special cause error.

Special cause errors are attributed to specific factors or events that cause the process to deviate from the expected outcome. These errors are typically unpredictable and require investigation and corrective action to bring the process back within the desired specifications.

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Answer:

a. True

Explanation:

The study of fluids in a state of rest or in motion and the forces involved in it is called fluid mechanics. Fluid mechanics has a wide range of applications in the field of mechanical engineering as well as civil engineering.

When we study the flow of fluid between any two flat plates that is indefinitely flat and is parallel, the flow of the fluid is known as plane Poiseulle flow. The profile of a plane Poiseulle flow is parabolic.

The velocity profile of a plane Poiseulle flow is :

\($\frac{u(y)}{U_{max}}=1-\left(\frac{2y}{h}\right)^2$\)

Thus the answer is TRUE.

The theoretical velocity of the jet as it strikes the plane below the bottom of the tank is 8.343 m/s.

Given:

h₁ = 2.7 m (head of the tank)

h₂ = 5.8 m (total depth of the tank)

h = 0.85 m (height below the bottom of the tank)

g = 9.8 m/s² (acceleration due to gravity)

To determine the theoretical velocity of the jet as it strikes the plane below the bottom of the tank, Bernoulli's equation can be used.

The equation can be written as:

\(P_1 +\frac{1}{2} \rho v_1^2 + \rho gh_1 = P_2 + \frac{1}{2} \rho v_2^2 + \rho gh_2\)

Where:

P₁ and P₂ are the pressures at points 1 and 2,

v₁ and v₂ are the velocities at points 1 and 2,

ρ is the density of the fluid,

g is the acceleration due to gravity,

h₁ and h₂ are the heights at points 1 and 2.

It can be assumed that the pressure at both points is atmospheric pressure, so P₁ = P₂.

Also, since the velocity at point 1 is negligible compared to the velocity of the jet, the term \(\frac{1}{2} \rho v_1^2\) can be ignored.

Now, let's substitute the given values into Bernoulli's equation:

\(0 + 0 + \rho gh_1 = 0 + \frac{1}{2} \rho v_2^2 + \rho gh_2\)

Simplifying the equation, we have:

\(gh_1 = \frac{1}{2} v_2^2 + gh_2\)

\(v_2^2 = 2gh_1 + 2gh_2\\v_2 = \sqrt{(2gh_1 + 2gh_2)}\)

Substituting the given values:

\(v_2 = \sqrt{(2 \times 9.8 times 2.7 + 2 times 9.8 \times0.85)}\\v_2 = \sqrt{(52.92 + 16.67)}\\v_2 = \sqrt{69.59\\v_2 = 8.343 m/s\)

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