The state of plane stress at a point on a body can be depicted by the Mohr's circle below. Point X has coordinates (13,-29) MPa and point Y has coordinates(-18, 29) MPa. Determine the normal and shear stresses associated with a rotation of the stress element θ 25°. Remember that a negative sign indicates a clockwise rotation and a positive sign indicates a counter- clockwise rotation. Note that you can use the Mohr's circle to obtain your answers graphically or you can apply the stress transformation equations. 

Answer:

int()

Explanation:

float() is using decimals, so that can't be it, like float(input( "how much does this cost?"))

print() is used to print something, not a user asking, like print("hello")

string() means like a whole, like string( I am good)

By elimination, int() is correct.

Hope this helps!

Answer:

A) condenser pressure = 9.73 kPa,

B) 10242 kw

C) 36.9%

Explanation:

given data

entrance pressure of steam = 12.5 MPa

temperature of steam = 550⁰c

flow rate of steam = 7.7 kg/s

outer pressure = 2 MPa

reheated steam temperature = 450⁰c

isentropic efficiency of turbine( nt ) = 85% = 0.85

isentropic efficiency of pump = 90% = 0.90

From steam tables

at 12.5 MPa and 550⁰c ; h3 = 3476.5 kJ/kg,  S3 = 6.6317 kJ/kgK

also for an Isentropic expansion

S4s = S3 .

therefore when S4s = 6.6317 kJ/kg and P4 = 2 MPa

h4s = 2948.1 kJ/kg

nt = 0.85

nt (0.85) = \(\frac{h3-h4}{h3-h4s}\) = \(\frac{3476.5 - h4}{3476.5 - 2948.1}\)

making h4 subject of the equation

h4 = 3476.5 - 0.85 (3476.5 - 2948.1)

h4 = 3027.3 kj/kg

at P5 = 2 MPa and T5 = 450⁰c

h5 = 3358.2 kj/kg,  s5 = 7.2815 kj/kgk

at P6 , x6 = 0.95  and s5 = s6

using nt = 0.85 we can calculate for h6 and h6s

from the chart attached below we can see that

p6 = 9.73 kPa, h6 = 2463.3 kj/kg

B) the net power output

solution is attached below

c) thermal efficiency

thermal efficiency = 1 - \(\frac{qout}{qin}\) = 1 - ( 2273.7/ 3603.8) = 36.9% ≈ 37%

Answer:

False

Explanation:

The reference OSHA standard requires several important characteristics of a PFAS. The employer must ensure that personal fall arrest systems (PFAs) must:

a. Limit the maximum arresting force on the employee to 1,800 pounds (8 kN). The figure used above must be based on the use of a full body harness.

From the above, we can therefore say that The reference OSHA standard requires several important characteristics of personal fall arrest systems (PFAs) as employers must reduce the maximum arresting force on the employee to 1,800 pounds (8 kN) using full body harness.

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Answer:

true

Explanation:

if it is not true it is false

Answer:

False.

Explanation:

Neutrons have no charges.

The efficiency of the squirrel cage induction motor is approximately 66.04%.

The following formula can be used to determine a motor's efficiency:

Efficiency is calculated as (Output Power / Input Power) * 100%.

Given:

Output torque = 22 lb-ft

Motor speed = 1175 rpm

Input power = 5560 watts

The motor's output power (Pout) must first be determined using the following formula:

(Torque * Speed) / 5252 = Pout

Where

5252 is a conversion factor.

Pout = (22 lb-ft * 1175 rpm) / 5252

≈ 4.923 hp

To convert horsepower (hp) to watts, we multiply by 746 (since 1 hp = 746 watts):

Pout = 4.923 hp * 746

≈ 3672.858 watts

Now, we can calculate the efficiency:

Efficiency = (Output Power / Input Power) * 100%

= (3672.858 watts / 5560 watts) * 100%

≈ 66.04%

Therefore, the efficiency of the squirrel cage induction motor is approximately 66.04%.

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Braided rings, scalloped edges, gaps, knots, and kinks can all be caused by mechanical interactions, such as twisting, bending, or compression forces, acting on flexible materials or structures.

Braided rings, scalloped edges, gaps, knots, and kinks are often observed in flexible materials or structures and can result from various mechanical interactions. When flexible materials are subjected to twisting or bending forces, they can form braided rings or exhibit scalloped edges. These phenomena occur due to the uneven distribution of stress and strain along the material, leading to localized deformations. Gaps can arise when there is insufficient contact or bonding between different parts of a structure, causing separations or spaces. Knots and kinks occur when flexible elements become tangled or bent in unexpected ways, usually due to external forces or improper handling. Overall, these manifestations are indicative of the complex behaviors and responses of flexible materials under mechanical stresses, highlighting the importance of understanding their properties and applications.

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Since the width of a frictional material on a multiple disc clutch is (r₂ - r₁)  the inside diameter of the multiple disc clutch is 81 mm

Let

Given that the width of a frictional material on a multiple disc clutch is (r₂ - r₁) and is equal to half of the maximum radius (R), we have that

w = r₂ - r₁  (1)and

w = R/2 (2)

Since R = r₂

w = r₂/2   (3)

Equating equations (1) and (3), we have

r₂ - r₁ = r₂/2  

r₁ = r₂ - r₂/2  

r₁ = r₂/2  

Since the maximum diameter d₂ of the coupling is not to exceed 162 mm, we have that

r₂ = d₂/2

So, r₁ = r₂/2  

r₁ = d₂/4

r₁ = 162 mm/4  

r₁ = 40.5 mm

Now the inside diameter d₁ = 2r₁

So, d₁ = 2 × 40.5 mm

= 81 mm

So, the inside diameter of the multiple disc clutch is 81 mm

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❎❎❎❎❎❎❎ sorry but that didn't help me that much

The 1/7-power-law velocity profile is a better representation of the velocity profile in a turbulent boundary layer than the parabolic laminar boundary-layer velocity profile.

What is velocity?
Velocity is the rate at which an object moves in a certain direction. It is a vector quantity, meaning it has both magnitude (the speed) and direction. Velocity is often expressed as the rate of change of displacement, which is the distance an object travels in a certain direction. Velocity is the change in position over time; the faster an object moves, the greater the velocity. Velocity is important in physics because it is used to calculate the acceleration of an object, the force of gravity, and the momentum of a moving object. It is also used to measure the speed of sound and the speed of light. Velocity is a fundamental concept in physics, and it is used to describe and measure a variety of physical phenomena.

This is because the former has a higher velocity near the wall and a lower velocity near the centerline, which is more representative of the actual velocity profile in a turbulent boundary layer.
The 1/7-power-law velocity profile is represented by the equation u/U = (y/delta)1/7 and the parabolic laminar boundary-layer velocity profile is represented by the equation u/U = (y/delta)2.
When these two equations are plotted on the same graph, with y/delta on the ordinate and u/U on the abscissa, the 1/7-power-law velocity profile is seen to have a higher velocity near the wall and a lower velocity near the centerline, which is more representative of the actual velocity profile in a turbulent boundary layer.

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Answer:

7 seconds

Explanation:

When turning right and accelerating to 30 mph, you will need approximately three seconds.

When turning right and accelerating to 30 mph, you will need approximately three seconds. This is because the time it takes to reach a certain speed depends on the rate of acceleration and the distance needed to reach that speed.

Acceleration is the rate at which an object changes its velocity. In this case, you are accelerating from a lower speed to a higher one, so you need to consider the acceleration time.

Using the formula: time = (final velocity - initial velocity) / acceleration, and assuming a constant acceleration, you can calculate that it takes approximately three seconds to reach 30 mph when turning right and accelerating.

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Comparing your present efforts and output with earlier efforts and output within your firm is known as internal benchmarking.

What does benchmarking mean in terms of IT?

To determine if your business is performing above, on, or below average, benchmarking is a formal method of comparing your organization's methods, processes, and results with those of others in your industry, and occasionally outside it. The main driving force is data.

Describe the Internet service with an example.

Internet Services refers to the portion of Data & Internet Services that is available over a public network. This covers internet access, email capabilities, website capabilities, and any other internet-related features or services that we might offer from time to time.

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Here's a program that prompts the user to enter the coordinates for the three points p0, p1, and p2, and then uses the functions leftOfTheLine, OnTheSameLine, and onTheLineSegment to determine whether p2 is on the left side of the line from p0 to p1, on the same line, or on the right side of the line:

Python

# Define functions

def leftOfTheLine(x0, y0, x1, y1, x2, y2):

   return ((x1 - x0) * (y2 - y0) - (x2 - x0) * (y1 - y0)) > 0

def onTheSameLine(x0, y0, x1, y1, x2, y2):

   return ((x1 - x0) * (y2 - y0) - (x2 - x0) * (y1 - y0)) == 0

def onTheLineSegment(x0, y0, x1, y1, x2, y2):

   return (min(x0, x1) <= x2 <= max(x0, x1) and

           min(y0, y1) <= y2 <= max(y0, y1))

# Prompt the user to enter coordinates for p0, p1, and p2

x0, y0, x1, y1, x2, y2 = map(float, input("Enter the coordinates for the three points p0, p1, p2: ").split(','))

# Determine the position of p2 relative to the line from p0 to p1

if onTheSameLine(x0, y0, x1, y1, x2, y2):

   print("p2 is on the same line as the line from p0 to p1")

elif leftOfTheLine(x0, y0, x1, y1, x2, y2):

   print("p2 is on the left side of the line from p0 to p1")

else:

   print("p2 is on the right side of the line from p0 to p1")

The program first defines the functions leftOfTheLine, onTheSameLine, and onTheLineSegment.

The leftOfTheLine function returns True if the point (x2, y2) is on the left side of the directed line from (x0, y0) to (x1, y1), the onTheSameLine function returns True if the point (x2, y2) is on the same line from (x0, y0) to (x1, y1), and the onTheLineSegment function returns True if the point (x2, y2) is on the line segment from (x0, y0) to (x1, y1).

The program then prompts the user to enter the coordinates for p0, p1, and p2, and uses the map function to convert the input to floats.

Finally, the program determines the position of p2 relative to the line from p0 to p1 using the onTheSameLine, leftOfTheLine, and onTheLineSegment functions, and prints the appropriate message.

The program first checks if p2 is on the same line as the line from p0 to p1, then checks if p2 is on the left side of the line, and finally, if p2 is not on the left side or the same line, it concludes that p2 must be on the right.

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Answer:

Explanation:

......................

Answer:

Typically, diesel trucks cost more than those with gas engines, especially when you're first buying them, as diesel is usually featured as an add-on for gas-powered cars. Diesel add-ons can cost over $5,000 for midsize trucks and around $10,000 for heavy-duty trucks.

Explanation:

Make me brain pls

Answer:

The answer is "+9.05 kw"

Explanation:

In the given question some information is missing which can be given in the following attachment.

The solution to this question can be defined as follows:

let assume that flow is from 1 to 2 then

Q= 1kw

m=0.1 kg/s

From the steady flow energy equation is:

\(m\{n_1+ \frac{v^2_1}{z}+ gz_1 \}+Q= m \{h_2+ \frac{v^2_2}{2}+ gz_2\}+w\\\\\ change \ energy\\\\0.1[1.005 \times 800]-1= 0.01[1.005\times 700]+w\\\\w= +9.05 \ kw\\\\\)

If the sign of the work performed is positive, it means the work is done on the surrounding so, that the expected direction of the flow is right.

Answer:l=legend

Explanation:basically L = legend and Q=Quick

The three formula for finding out the 3 types of the slope of curve Q with respect to L should be explained below.

1. Slope intercept form where the formula is y = mx + b

Here

y = variable

m = slope of line

x = variable

b = y intercept

2. Point slope form where the formula is y - y1 = m(x - x1)

Here

y = variable

y1 = y coordinate at the first point on line

m = the slope

x = variable

x1 = x coordinate at the first point on line

3. Standard slope form where the formula is ax + by = c

Here

a = x coefficent

b & c = constant term

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Explanation:

The main sources of error in the collection of data are as follows : Due to direct personal interview. Due to indirect oral interviews. Information from correspondents may be misleading. Mailed questionnaire may not be properly answered. Schedules sent through enumerators, may give wrong information.

Answer:

the answer is 180mm

Explanation:

the answer is 180mm.

Understanding interaction and knowing how to use technology to encourage interaction are both necessary for effective online training and OLE project.

Thus, These interactions fall under three categories, according to Moore and Kearsley (2012): "interaction with content, interaction with instruction, or interaction with other learners" (p. 132).

The discussion of each of these interaction types in this chapter includes recommendations for how to include them in online learning environments (OLEs).

Both instructional design professionals and online educators will find the chapter's methodologies and strategies useful. It offers suggestions and activities that instructors or course designers might use in OLE projects and aims to allay some of the worries that faculty members have regarding OLEs.

Thus, Understanding interaction and knowing how to use technology to encourage interaction are both necessary for effective online training and OLE project.

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The essential difference between a valid argument and an invalid argument lies in the logical relationship between the premises and the conclusion.

A valid argument is one where the conclusion logically follows from the premises. In other words, if the premises are true, then the conclusion must be true as well. Here's an example:

Valid argument:

Premise 1: All mammals are animals.

Premise 2: Dogs are mammals.

Conclusion: Therefore, dogs are animals.

In this example, the conclusion logically follows from the premises, and the argument is valid.

On the other hand, an invalid argument is one where the conclusion does not logically follow from the premises. Even if the premises are true, the conclusion may still be false. Here's an example:

Invalid argument:

Premise 1: All dogs have fur.

Premise 2: Cats have fur.

Conclusion: Therefore, cats are dogs.

In this example, the conclusion does not logically follow from the premises, and the argument is invalid.

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Answer:

power = 49.95 W

and it is self locking screw

Explanation:

given data

weight W = 100 kg = 1000 N

diameter d = 20mm

pitch p = 2mm

friction coefficient of steel f = 0.1

Gravity constant is g = 10 N/kg

solution

we know T is

T = w tan(α + φ ) \(\frac{dm}{2}\)     ...................1

here dm is = do - 0.5 P

dm = 20 - 1

dm = 19 mm

and

tan(α) = \(\frac{L}{\pi dm}\)      ...............2

here lead L = n × p

so tan(α) = \(\frac{2\times 2}{\pi 19}\)

α = 3.83°  

and

f = 0.1

so tanφ = 0.1

so that φ = 5.71°

and  now we will put all value in equation 1 we get

T = 1000 × tan(3.83 + 5.71 ) \(\frac{19\times 10^{-3}}{2}\)  

T = 1.59 Nm

so

power = \(\frac{2\pi N \ T }{60}\)     .................3

put here value

power = \(\frac{2\pi \times 300\times 1.59}{60}\)

power = 49.95 W

and

as φ > α

so it is self locking screw

The only dominant strategy in this game is for Alyssa to choose left The outcome reflecting the unique Nash equilibrium in this game is as follows: Larry chooses  right and Megan chooses Left

In game theory, the phrase "dominant strategy" refers to the choice that is best for a player regardless of the actions taken by their opponents, whereas the phrase "inferior strategy" designates the alternative.

Since Megan selecting "Left" is the sole effective technique in this game. It implies that she will always adopt a "left" tactic, regardless of Larry's decision.

Therefore, the result of the game, which reflects the particular Nash equilibrium, is as follows: Megan picks "Left," whereas Larry chooses "Right". One-of-a-kind Nash equilibrium is (Right, Left).

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Answer:

V = 20.6 m/s

Explanation:

Given that the temperature of the neon molecules = 356 Kelvin

Pressure = 0.9 bar

The mass number of Neon = 21.

Using the formula below

1/2 m v^2 = (3kT)/2

Where

T = temperature = 356 k

K = Bolzmann constant

= 1.38 × 10^-23jk^-1

NA = 6.02214076×10²³ mol⁻¹

Where NA = Avogadro number

Substitute all the parameters Into the formula

1/2 × 21/NA × v^2 = (3 × k × 356)/2

1.744×10^-23V^2 = 7.3692 × 10^-21

Make V^2 the subject of formula

V^2 = (7.37×10^-21)/1.744×10^-23

V^2 = 422.55

V = sqrt( 422.55)

V = 20.55

Therefore, the average (root mean square) velocity (m/s) of Neon molecules at 356 Kelvins and 0.9 bars is 20.55 m/s

Flowchart of the process: Feed (C2H6 + Cl2) -> Reactor -> Separation -> Recycle (C2H6 + Cl2) and discard (HCl + C2H4Cl2) -> Product (C2H5Cl).

The volume V flowing past a point in time t is defined as the flow rate Q, or Q=Vt, where V is volume and t is time.

To calculate the molar flow rate of unconsumed C2H6 leaving the reactor, we need to first calculate the molar flow rate of C2H6 consumed in the reactor.

Molar flow rate of C2H6 in feed = 4 moles of C2H6 / mole of Cl2 * 150 mol/h = 600 mol/h

Molar flow rate of C2H6 consumed = 15% of 600 mol/h = 90 mol/h

Molar flow rate of unconsumed C2H6 leaving the reactor = Molar flow rate of C2H6 in feed - Molar flow rate of C2H6 consumed = 600 mol/h - 90 mol/h = 510 mol/h

Therefore, the molar flow rate of unconsumed C2H6 leaving the reactor is 510 mol/h.

c) To calculate the production rate of C2H5Cl leaving the reactor, we can use the stoichiometry of the reaction and the given conversion and selectivity data.

For every 100 moles of C2H6 consumed in the reactor, 80 moles of C2H5Cl is produced. Therefore, the molar flow rate of C2H5Cl leaving the reactor can be calculated as:

Molar flow rate of C2H5Cl leaving the reactor = Molar flow rate of C2H6 consumed * (80/100) = 90 mol/h * (80/100) = 72 mol/h

Therefore, the production rate of C2H5Cl leaving the reactor is 72 mol/h.

d) To calculate the molar flow rate of C2H6 and Cl2 in the fresh feed, we can use the given information that the feed contains 4 moles of C2H6 per mole of Cl2.

Let the molar flow rate of Cl2 in the feed be x. Then, the molar flow rate of C2H6 in the feed can be calculated as:

Molar flow rate of C2H6 in feed = 4 moles of C2H6 / mole of Cl2 * x

We know that the total molar flow rate in the feed is 150 mol/h. Therefore, we can write:

x + 4x = 150

Solving for x, we get:

x = 25 mol/h

Therefore, the molar flow rate of C2H6 in the fresh feed is:

Molar flow rate of C2H6 in feed = 4 moles of C2H6 / mole of Cl2 * x = 4 mol/h * 25 = 100 mol/h

And the molar flow rate of Cl2 in the fresh feed is:

Molar flow rate of Cl2 in feed = x = 25 mol/h

Thus, the molar flow rate of C2H6 and Cl2 in the fresh feed are 100 mol/h and 25 mol/h, respectively.

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As a result, A transmits I her nonce that has been encrypted using I's public key. I contacts B and sends the nonce of A that has been encrypted using B's public key after decrypting the message using their private key.

The fact that I actually sent this mail is unknown to B. With their own nonce, B replies and uses A's public key to encrypt the message. Since I don't have access to A's private key, they must transmit the message to A without knowing what is inside. A responds with the nonce of B encrypted with the public key of I after decrypting the message with her private key.

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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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Connecting rods undergo a process to alleviate manufacturing stresses from forging, a process known as cold forging.​

Forging is a metalworking process that involves shaping metal with localized compressive forces. A hammer or a die is used to deliver the blows.

Forging is frequently classified according to temperature: cold forging, warm forging, or hot forging.

The goal of forging is to make metal parts. Metal forging produces some of the most durable manufactured parts available when compared to other manufacturing methods.

Minor cracks and empty spaces in the metal are filled as the metal is heated and pressed.

Cold forging is the process of deforming a metal material at room temperature using extremely high pressure. The slug is placed in a die and compressed by a press until it fits into the desired shape.

Thus, the answer is cold forging.

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