Water is the working fluid in a Rankine cycle. Steam enters the turbine at 1400 lbf/in. 2 and 1000°F. The condenser pressure is 2 lbf/in. 2 Both the turbine and pump have isentropic efficiencies of 85%. The working fluid has negligible pressure drop in passing through the steam generator. The net power output of the cycle is 1 × 109 Btu/h. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Determine for the cycle (a) the mass flow rate of steam, in lb/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the thermal efficiency. (d) the mass flow rate of cooling water, in lb/h

Precedence and associativity are important in programming because they dictate the order in which operations are evaluated.

For example, if a statement includes multiple operators, the operations are performed in a certain order depending on the precedence and associativity of each operator.

Operator precedence refers to the order in which operations are performed, with higher precedence being performed first. Operator associativity refers to the order in which operations with the same precedence are evaluated, with left associativity being evaluated first and right associativity being evaluated last.

The following table shows the precedence and associativity of common operators:

Operator  Precedence Associativity:

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Answer:

Here is the fractional_part() function:

def fractional_part(numerator, denominator):

   if denominator != 0:

       return (numerator % denominator)/denominator

   else:

       return 0

Explanation:

I will explain the code line by line.

The first statement it the definition of function fractional_part() which takes two parameters i.e. numerator and denominator to return the fractional part of the division.

Next is an if statement which checks if the value of denominator is 0. If this is true then the function returns 0. If this condition evaluates to false which means that the value of denominator is not 0 then return (numerator % denominator)/denominator  is executed. Now lets see how this statement works with the help of an example.

Lets say the value of numerator is 5 and denominator is 4. (numerator % denominator)/denominator will first compute the modulus of these two values. 5 % 4 is 1 because when 5 is divided by 4 , then the remainder is 1. Now this result is divided by denominator to get the fractional part. When 1 is divided by 4 the answer is 0.25. So this is how we get the fractional part which is 0.25.  

The program with output is attached.

When the engines of Apollo 8 started so that the spacecraft could depart lunar orbit, astronaut Lovell radioed "Roger, kindly be told there is a Santa Claus."

Apollo 8 demonstrated the capability of the tools, the astronauts, and the whole Apollo program team to launch a crewed trip to the Moon, carry out activities in lunar space, and safely return the astronauts to Earth.

On December 21, 1968, Apollo 8 was the very first mission to send people to the Moon and back. The journey, which tested the aircraft trajectory and procedures getting there and back, was a crucial precursor to a lunar landing even though the crew did not touch down on the moon's surface.

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The approximate value of the voltage drop across each of the following when their contacts are open are as follows:

Voltage drop may be defined as the process of decrease of electric potential along the path of a current flowing in a circuit. It normally occurs when a current passes through the cable.

It is related to the resistance or impedance to current flow with passive elements in the circuits including cables, contacts, and connectors affecting the level of voltage drop.

It generally specifies how the supplied energy from a voltage source is reduced as electric current flows through the elements that do not supply voltage.

Therefore, the approximate value of the voltage drop across each of the following when their contacts are well described above.

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Explanation:

rational

Step-by-step explanation:

The discriminant (d) of a quadratic equation ax^2 + bx + c = 0ax

2

+bx+c=0 is:

\boxed{\mathrm{d =} \ b^2 - 4ac}

d= b

2

−4ac

.

If:

• d > 0, then there are two real solutions

• d = 0, then there is a repeated real solution

• d < 0, then there is no real solution.

In this question, we are given the quadratic equation 3x^2 + 4x - 2 = 03x

2

+4x−2=0 . Therefore, the discriminant of the equation is:

b² - 4ac = (4)² - 4(3)(-2)

= 16 - (-24)rational

Step-by-step explanation:

The discriminant (d) of a quadratic equation ax^2 + bx + c = 0ax

2

+bx+c=0 is:

\boxed{\mathrm{d =} \ b^2 - 4ac}

d= b

2

−4ac

.

If:

• d > 0, then there are two real solutions

• d = 0, then there is a repeated real solution

• d < 0, then there is no real solution.

In this question, we are given the quadratic equation 3x^2 + 4x - 2 = 03x

2

+4x−2=0 . Therefore, the discriminant of the equation is:

b² - 4ac = (4)² - 4(3)(-2)

= 16 - (-24)

= 40

Since the discriminant, 40, is greater than zero, the quadratic equation has 2 rational solutions.

= 40

Since the discriminant, 40, is greater than zero, the quadratic equation has 2 rational solutions.

Answer:

Because the shunt winding consist of a large number of turns,

Explanation:

It is nearly impossible to obtain satisfactory performance from a shunt motor connected to an ac power source because the shunt winding consist of a large number of turns, due to the high number of turns that the DC shunt motor has it develops a high impedance when connected to an ac power source. and due  to this high impedance the amount of current that flows through the field will be very low making it nearly impossible for the shunt motor to operate properly

Answer:

At the time of the summer or winter solstices, the Sun is 23.44° degrees above or below the horizon, respectively, irrespective of time of day.

Explanation:

Answer: It does make sense, because I've been involved in these careers and have a long family line of them. And other questions?

Explanation:

Answer:

a picture showing the actual parts of a circuit and their connection is call a Circuit diagram

Answer:

Explanation:

Given that:

Torque T = 2300 lb - ft

Bending moment M = 1500 lb - ft

axial thrust P = 2500 lb

yield points for tension  σY= 100 ksi

yield points for shear   τY = 50 ksi

Using maximum-shear-stress theory

\(\sigma_A = \dfrac{P}{A}+\dfrac{Mc}{I}\)

where;

\(A = \pi c^2\)

\(I = \dfrac{\pi}{4}c^4\)

\(\sigma_A = \dfrac{P}{\pi c^2}+\dfrac{Mc}{ \dfrac{\pi}{4}c^4}\)

\(\sigma_A = \dfrac{2500}{\pi c^2}+\dfrac{1500*12c}{ \dfrac{\pi}{4}c^4}\)

\(\sigma_A = \dfrac{2500}{\pi c^2}+\dfrac{72000c}{\pi c^3}}\)

\(\tau_A = \dfrac{T_c}{\tau}\)

where;

\(\tau = \dfrac{\pi c^4}{2}\)

\(\tau_A = \dfrac{T_c}{\dfrac{\pi c^4}{2}}\)

\(\tau_A = \dfrac{2300*12 c}{\dfrac{\pi c^4}{2}}\)

\(\tau_A = \dfrac{55200 }{\pi c^3}}\)

\(\sigma_{1,2} = \dfrac{\sigma_x+\sigma_y}{2} \pm \sqrt{\dfrac{(\sigma_x - \sigma_y)^2}{2}+ \tau_y^2}\)

\(\sigma_{1,2} = \dfrac{2500+72000}{2 \pi c ^3} \pm \sqrt{\dfrac{(2500 +72000)^2}{2 \pi c^3}+ \dfrac{55200}{\pi c^3}} \ \ \ \ \ ------(1)\)

Let say :

\(|\sigma_1 - \sigma_2| = \sigma_y\)

Then :

\(2\sqrt{( \dfrac{2500c + 72000}{2 \pi c^3})^2+ ( \dfrac{55200}{\pi c^3})^2 } = 100(10^3)\)

\((2500 c + 72000)^2 +(110400)^2 = 10000*10^6 \pi^2 c^6\)

\(6.25c^2 + 360c+ 17372.16-10,000\ \pi^2 c^6 =0\)

According to trial and error;

c = 0.75057 in

Replacing  c into equation (1)

\(\sigma_{1,2} = \dfrac{2500+72000}{2 \pi (0.75057) ^3} \pm \sqrt{\dfrac{(2500 +72000)^2}{2 \pi (0.75057)^3}+ \dfrac{55200}{\pi (0.75057)^3}}\)

\(\sigma_{1,2} = \dfrac{2500+72000}{2 \pi (0.75057) ^3} + \sqrt{\dfrac{(2500 +72000)^2}{2 \pi (0.75057)^3}+ \dfrac{55200}{\pi (0.75057)^3}} \ \ \ OR \\ \\ \\ \sigma_{1,2} = \dfrac{2500+72000}{2 \pi (0.75057) ^3} - \sqrt{\dfrac{(2500 +72000)^2}{2 \pi (0.75057)^3}+ \dfrac{55200}{\pi (0.75057)^3}}\)

\(\sigma _1 = 22193 \ Psi\)

\(\sigma_2 = -77807 \ Psi\)

The required diameter d  = 2c

d = 1.50 in   or   0.125 ft

you must check that the head gasket is seated correctly and is not dislodged or slightly moved in some way or youl result in oil or coolant in the cylinders and loss of compression is possible to or a vacum leak in 1 or more cylinders

The basic requirement of measurements is to have a standard or reference point against which to compare the quantity being measured. This standard or reference point should be well-defined and stable, and the measurement process should be repeatable and consistent. Additionally, it is important to ensure that the measurement equipment is calibrated and in good working condition.

Answer:

The most basic requirement for measurements is the presence of a standard or reference point against which the quantity being measured can be compared. The measurement process should be repeatable and consistent, and the standard or reference point should be well-defined and stable. Furthermore, ensure that the measurement equipment is calibrated and in good working order.

Explanation:

Answer:

Step One: Know What Your Rocket Needs to Do. ...

Step Two: Establish Mission Parameters. ...

Step Three: Call in Experts. ...

Step Four: Start Drawing. ...

Step Five: Whittle Down the Possibilities. ...

Step Six: Pick the Best Design.

Explanation:

Hope this helps and thx for tha fwee pts

The goal of Boeing, Inc is to determine whether an existing machine can mill an engine part that has a design specification of 5.0mm +- 0.10 mm. The process has a standard deviation of σ = 0.02 mm.

Given that the standard deviation of the process is σ = 0.02 mm. Now, we need to determine if the existing machine can produce a part that meets the design specification using the given standard deviation (σ).The tolerance limit (T.L) can be calculated as;

T.L = (Upper Limit – Lower Limit) / 2 where;

Upper Limit = 5.0 + 0.10 = 5.10 mm

Lower Limit = 5.0 – 0.10 = 4.90 mm

T.L = (5.10 – 4.90) / 2 = 0.10 / 2 = 0.05 mm

The value of T.L = 0.05 mm

The process standard deviation (σ) = 0.02 mm

Using the formula;

P = 0.6827, approximately 68.27% of the parts produced by the existing machine fall within the tolerance limit (5.0 ± 0.10)

With a process standard deviation of σ = 0.02 mm and a tolerance limit of 0.05 mm, approximately 68.27% of the parts produced by the existing machine fall within the tolerance limit (5.0 ± 0.10). It can, therefore, be concluded that the existing machine can produce parts that meet the design specification.

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The volume of cuboid in cubic feet which must be ordered is equal to 5,600 cubic feet.

Given the following data:

Length of helicopter landing pad = 40 ft.

Width of helicopter landing pad = 70 ft.

Height or thickness of helicopter landing pad = 2 ft.

Based on the information provided, we can reasonably infer and logically deduce that the shape of this helicopter landing pad is a cuboid.

Mathematically, the volume of a cuboid can be calculated by using this following formula:

Volume = l × w × h

Where:

Substituting the given parameters into the formula, we have;

Volume = 40 × 70 × 2

Volume = 5,600 cubic feet.

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A set of control signals is a group of inputs to a digital circuit that determine its response. These control signals govern the operation of the circuit and determine its logical functionality.

The ideal set of control signals that are used in a digital circuit depends on the requirement of the circuit. As given, we have only 2-input NAND, NOR, XOR, XNOR gates, and inverters, which means we cannot make all other gates, and we have to select the appropriate set of control signals.Among the given gates, NAND and NOR gates can be used to implement all other logic gates. XOR gate can be obtained by combining NAND gates and inverters, while XNOR gate can be obtained by using NOR gates and inverters. However, when we use only NAND and NOR gates, the size of the circuit increases. Therefore, the preferred set of control signals among the given gates should be the combination of XOR and inverters.The XOR gate requires less logic than the implementation of XOR using NAND and NOR gates. The XOR gate can be used as a universal gate and is also used in various arithmetic and encryption circuits. Therefore, the preferred set of control signals should be XOR and inverters.

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The IP address of host 2 on subnet 6 would be the second address in the subnet, which is: 227.12.1.41

It should be noted that to discover the IP address of Host 2 on Subnet 6, first we must uncover the network address of the sixth subnet. Since the number is 6, the network address bears the designation of the sixth subnet belonging to a Class C Network 227.12.1.0.

In order to ascertain the network adress of Subnet 6, one must become familiar with the block size. By examining the subnet mask /29, it can be deduced that the block size's magnitude must be equal to 2^(32-29)= 8. Summarily, the network address of Subnet 6 would correspond as:

227.12.1.0 + (6-1) * 8 = 227.12.1.40

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Answer:

Explanation:

Brittle material are materials that don not undergo plastic deformation, they have very low plasticity that is while cracks can form without plastic deformation

The major/ common examples are glass, ceramics, graphite

In other words brittle materials break instead of bending, they have very low energy absorption as they don not undergo plastic deformation

Answer:

C, D, E

Explanation:

just did it on edge 2020

Answer:

c

d

e

Explanation:

edgunity 2020

The correct option for the implication of low variety is B) Flexibility needed. Variety refers to the number of different products, services, or activities that an organization offers. High variety means that a company offers a wide variety of products or services, while low variety means that a company provides a limited range of products or services.

One of the implications of low variety is that customers have limited options. They are restricted to purchasing only those goods and services that the company offers, which may not match their requirements or preferences. This may lead to losing customers to rivals who offer a greater variety of goods and services.

In the case of low variety, it is critical to have the required flexibility. Customers may ask for certain specific goods or services that are not provided by the company. To meet customer requirements, the company should be adaptable and able to rapidly respond to customer requests by expanding its product line. As a result, low variety necessitates the need for flexibility.

The other given options are not valid. Low unit cost is not related to low variety. Unit cost may be affected by economies of scale and other factors, but it is not directly related to variety. High complexity is not related to low variety as well. As the range of goods and services offered by the company increases, the complexity of the company's operations and management also increases. Matching customers' specific needs is partially correct because the company cannot match customer specific needs in low variety. In low variety, the company has a limited range of goods and services, so it is not possible to fulfill all the customers’ specific needs.

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Answer:

C. The meter will display a negative sign.

Explanation:

If you use an analog voltmeter and you measure voltage with reverse polarity you will damage it. But in this case we are using a digital multimeter. This kind of multimeter is designed to be able to deal with positive and negative voltages

Answer:Falling or flying objects on a worksite can expose workers to relatively minor injuries, such as cuts and abrasions, as well as more serious injuries, such as concussions or blindness. Working beneath scaffolds or other areas where overhead work is being performed puts workers at risk from falling objects. Flying objects become a concern when workers are using power tools or performing tasks that involve pushing, pulling or prying.

Explanation:General

Always wear hard hats when work is being performed overhead or when other work conditions call for it.

Stack materials securely to prevent them from sliding, falling or collapsing.

Overhead work

Secure all tools and materials to prevent them from falling on people below.

Use toe boards or guardrails on scaffolds to prevent objects from falling. Alternately, use debris nets or catch platforms to grab falling objects.

Machine use

When working with machines or power tools that can produce flying particles, wear safety glasses, goggles or face shields.

Inspect tools prior to use, and be sure all guards are in place and in good working condition.

Allow only properly trained workers to use power-actuated tools.

Cranes/hoists

Whenever possible, avoid working under moving loads.

Erect barricades and post warning signs at hazardous work zones.

Inspect cranes and hoists prior to use to ensure all components are in good working order, including wire rope, lifting hooks and chains.

Never exceed the lifting capacity of cranes and hoists.

Compressed air

Reduce compressed air for cleaning to 30 psi, and always use proper personal protective equipment and guarding.

Never clean clothing with compressed air.

The correct answer is  a W8 × 22 beam that is 21 feet long weighs approximately 467.3 pounds.

The weight of a W8 × 22 beam that is 21 feet long can be calculated as follows:Convert the length from feet to inches: 21 feet × 12 inches/foot = 252 inches.Look up the weight per foot of a W8 × 22 beam in a standard steel beam table. According to one source, the weight per foot is 22.3 pounds per foot.Multiply the weight per foot by the length in feet: 22.3 pounds/foot × 21 feet = 467.3 pounds.The weight per unit length of a W8 × 22 beam can be found in a steel beam table or from a manufacturer's specification sheet. For this beam, the weight per foot is 22 pounds per foot, or 2.75 pounds per inch.

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The common characteristic of all material removal mechanisms in non-traditional machining processes is that they use a tool or electrode to remove material from the workpiece.

This can include processes such as laser cutting, electrochemical machining, electrical discharge machining, and waterjet cutting. These processes are often used when conventional machining methods are inadequate or inefficient, and they are able to achieve high levels of precision and accuracy.

The primary mechanism of material removal in Electron Beam Machining (EBM) is through thermal sputtering. This is a process in which incident electrons, accelerated by a high voltage, strike a surface and cause atoms or molecules to be ejected from the surface.

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Answer:

The correct answer will be "18 degrees AOB".

Explanation:

The given value is:

KTAS = 120

For determining bank angles through standard rate switches, as we understand

⇒  \(10 \ percent \ of KTAS +\frac{1}{2} \ of \ the \ number\)

On substituting the given value of KTAS, we get

⇒  \(10 \ percent \ of 120+\frac{1}{2} \ of \ the \ number\)

⇒  \(12+6\)

⇒  \(18 \ degree \ angle \ of \ bank\)

The accident theory divides an accident into three phases: pre-contact, contact, and post-contact is the domino theory.

The domino theory is a geopolitical theory that holds that changes in democracy in one country have a domino impact on surrounding countries.

The multiple-factor theory examines not just the three domino theory phases—precontact, contact, and post-contact—but also additional elements that influence an accident, such as management, machine, media, and man.

Therefore, the domino theory separates an accident into three phases: pre-contact, contact, and post-contact.

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a)The equation of the elliptical cross section if the origin of a rectangular coordinate system is placed at one of the covertices can be obtained by using the standard form of the equation of an ellipse: x²/a² + y²/b² = 1.

Since the origin is at one of the covertices, the center of the ellipse is located at (0, 0) and the major axis of the ellipse coincides with the horizontal axis. Therefore, the horizontal opening of the ellipse corresponds to the length of the major axis, which is 4 feet, and the vertical opening of the ellipse corresponds to the length of the minor axis, which is 3 feet. Thus, we have:a = 4/2 = 2b = 3/2 = 1.5Therefore, the equation of the elliptical cross section is:x²/4² + y²/1.5² = 1Here is the sketch of the ellipse with the origin at one of the covertices: b)The foci of the ellipse can be found by using the formula c = √(a² - b²),

where c is the distance between the center of the ellipse and each focus. In this case, we have:a = 2b = 1.5Therefore:a² = 4b² = 2.25c = √(a² - b²) = √(4b² - b²) = b√3 ≈ 1.3Thus, the foci of the ellipse are located at (±c, 0), that is, at (±1.3, 0).Here is the sketch of the ellipse with the foci marked in red: c)The eccentricity of the ellipse can be obtained by using the formula e = c/a. In this case, we have:a = 2c = b√3 ≈ 2.6Therefore:e = c/a = (b√3)/2 ≈ 0.65Thus, the eccentricity of the ellipse is approximately 0.65.

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Answer:

I think it's 23 ohms.

Explanation:

Not entirely sure about it.

hope this helps