Air flows adiabatically between two sections in a constant
area pipe. At upstream section (1), p0,1 100 psia, T0,1 600
R, and Ma1 0.5. At downstream section (2), the flow is choked.
Estimate the magnitude of the force per unit cross-sectional area
exerted by the inside wall of the pipe on the fluid between sections
(1) and (2).

Answer:

When are resistors in series? Resistors are in series whenever the flow of charge, called the current, must flow through devices sequentially. For example, if current flows through a person holding a screwdriver and into the Earth, then  

R

1

 in Figure 1(a) could be the resistance of the screwdriver’s shaft,  

R

2

 the resistance of its handle,  

R

3

 the person’s body resistance, and  

R

4

 the resistance of her shoes.

Figure 2 shows resistors in series connected to a voltage source. It seems reasonable that the total resistance is the sum of the individual resistances, considering that the current has to pass through each resistor in sequence. (This fact would be an advantage to a person wishing to avoid an electrical shock, who could reduce the current by wearing high-resistance rubber-soled shoes. It could be a disadvantage if one of the resistances were a faulty high-resistance cord to an appliance that would reduce the operating current.)

Two electrical circuits are compared. The first one has three resistors, R sub one, R sub two, and R sub three, connected in series with a voltage source V to form a closed circuit. The first circuit is equivalent to the second circuit, which has a single resistor R sub s connected to a voltage source V. Both circuits carry a current I, which starts from the positive end of the voltage source and moves in a clockwise direction around the circuit.

Figure 2. Three resistors connected in series to a battery (left) and the equivalent single or series resistance (right).

To verify that resistances in series do indeed add, let us consider the loss of electrical power, called a voltage drop, in each resistor in Figure 2.

According to Ohm’s law, the voltage drop,  

V

, across a resistor when a current flows through it is calculated using the equation  

V

=

I

R

, where  

I

 equals the current in amps (A) and  

R

 is the resistance in ohms  

(

Ω

)

. Another way to think of this is that  

V

 is the voltage necessary to make a current  

I

 flow through a resistance  

R

.

So the voltage drop across  

R

1

 is  

V

1

=

I

R

1

, that across  

R

2

 is  

V

2

=

I

R

2

, and that across  

R

3

 is  

V

3

=

I

R

3

. The sum of these voltages equals the voltage output of the source; that is,

V

=

V

1

+

V

2

+

V

3

.

This equation is based on the conservation of energy and conservation of charge. Electrical potential energy can be described by the equation  

P

E

=

q

V

, where  

q

 is the electric charge and  

V

 is the voltage. Thus the energy supplied by the source is  

q

V

, while that dissipated by the resistors is

q

V

1

+

q

V

2

+

q

V

3

.

Explanation:

Answer: 162.4

Sorry if you get it wrong :(

Explanation:

In a client/server system, there are a number of possible issues that can arise during the transmission process. One common problem is latency, which occurs when the time it takes for the request to travel from the client to the server and back again is longer than expected.

This can be caused by a variety of factors, including network congestion, distance, and bandwidth limitations. Another possible issue is packet loss, which occurs when one or more packets of data fail to arrive at their destination. This can be caused by a variety of factors, including network congestion, faulty hardware, and software bugs. Additionally, there may be issues with the client or server software itself. For example, the client may send an improperly formatted request or the server may fail to process the request correctly. These types of issues can result in delays or errors in the transmission process. Overall, it is important to have a robust and reliable client/server system in place to minimize the risk of transmission issues. This can include implementing redundancy and failover measures, optimizing network performance, and regularly testing and updating the software.

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Answer:

Option B

Explanation:

Atoms of ferromagnetic materials have north and south pole but these atoms are oriented in random directions due to which they do no exhibit magnetic properties until unless they are brought into influence of any external temporary or permanent magnetic field.

Under the influence of external magnetic force, the atoms of the ferromagnetic material get oriented in a particular direction.

Hence, option B is correct

(a) Confidence Interval ≈ (11.72, 12.08). (b) Confidence Interval ≈ (11.64, 12.16) and (c) The confidence level of the interval is at least 95%.

To find the confidence intervals for the mean sugar content, we can use the formula:

Confidence Interval = Sample Mean ± (Critical Value * Standard Error)

where the critical value is based on the desired confidence level and the standard error is calculated as the standard deviation divided by the square root of the sample size.

a. 95% confidence interval:

The critical value for a 95% confidence level is approximately 1.96.

Standard Error = 1.1 / sqrt(140) ≈ 0.093

Confidence Interval = 11.9 ± (1.96 * 0.093)

Confidence Interval ≈ (11.72, 12.08)

b. 99% confidence interval:

The critical value for a 99% confidence level is approximately 2.58.

Standard Error = 1.1 / sqrt(140) ≈ 0.093

Confidence Interval = 11.9 ± (2.58 * 0.093)

Confidence Interval ≈ (11.64, 12.16)

c. The given interval is (11.81, 11.99). This interval falls entirely within the 95% confidence interval calculated in part a. Therefore, the confidence level of the interval is at least 95%.

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A⁣⁣nswer i⁣⁣⁣⁣s i⁣⁣⁣⁣n a p⁣⁣⁣⁣hoto. I c⁣⁣⁣⁣ouldn't a⁣⁣⁣⁣ttach i⁣⁣⁣⁣t h⁣⁣⁣⁣ere, b⁣⁣⁣⁣ut I u⁣⁣⁣⁣ploaded i⁣⁣⁣⁣t t⁣⁣⁣⁣o a f⁣⁣⁣⁣ile h⁣⁣⁣⁣osting. l⁣⁣⁣⁣ink b⁣⁣⁣⁣elow! G⁣⁣⁣⁣ood L⁣⁣⁣⁣uck!

bit.\(^{}\)ly/3a8Nt8n

Answer:

Explanation:

The rotation speed depends on the force applied to the coil, and on the mass (moment of inertia) of the coil. The force can be increased by ...

  increasing the magnetic field strength

  increasing the coil current

And the moment of inertia can be decreased by ...

  making the coil lighter

  making the coil more compact.

Any of these changes will increase the rotation speed.

The velocity of the water in the Mississippi River at Vicksburg is approximately 0.992 feet per second.

To calculate the velocity of the water in the river, we can use the formula:

Velocity = Discharge / (Width x Depth)

Substituting the given values, we get:

Velocity = 1,370,000 cfs / (3,000 ft x 46.46 ft) = 0.992 ft/s

Therefore, the velocity of the water in the Mississippi River at Vicksburg is approximately 0.992 feet per second.

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Answer:

draw a picture of your computer and label it

Answer: You need to make a drawing for this problem

Explanation:

Make a simple sketch of a laptop, then draw an arrow and label the screen, keyboard, mouse pad, charging port, charging cord, and any extra parts you would like to label.

The Internet of Things means all the data that is contained on the internet. is b False

The Internet of Things (IoT) does not refer to all the data contained on the internet. Instead, it is a network of interconnected physical devices, vehicles, buildings, and other objects that have embedded sensors, software, and network connectivity, allowing them to collect and exchange data. IoT focuses on enabling communication between these devices and using the data they generate to improve efficiency, convenience, and decision-making. The concept goes beyond traditional internet-connected devices, like computers and smartphones, to include everyday items such as home appliances, wearable devices, and vehicles. In conclusion, IoT is about connecting objects and harnessing the data they generate, rather than being solely about the data contained on the internet.

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Strainers with waterway areas at least equivalent to the area of their tailpiece are necessary for shower drains and floor drains. Strainers with waterway areas at least equivalent to the area of their tailpiece are required for shower drains and floor drains.

These strainers ensure proper drainage by preventing clogging and maintaining the flow of water. In the case of shower drains, the strainer helps to collect and remove debris such as hair, and other particles that may accumulate during showering. Without a properly sized strainer, these materials can block the drain, leading to water pooling and potential flooding in the shower area. Similarly, floor drains are designed to collect water and prevent pooling in areas such as basements, laundry rooms, and commercial spaces. Strainers in floor drains prevent large objects, dirt, and debris from entering the drain and causing blockages. By having a waterway area equivalent to the tailpiece, the strainer allows efficient water flow, ensuring effective drainage. In summary, these strainers play a crucial role in preventing clogs and maintaining the proper flow of water, ensuring efficient drainage in both residential and commercial settings.

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functionality required of the system, Quality characteristics that aren't useful, like performance or security, features that cater to consumer demands For the system to function, there are network, hardware, and software requirements.

The minimum and/or maximum hardware and software criteria that a system or application must meet in order to operate effectively are known as system requirements.

System requirements are a list of the features that a system must have in order to fulfill the needs of the customer. [1] System requirements are a broad and specific topic that can be applied to many different objects.

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Answer:

Protecting yourself.

Explanation:

you didn't include answer choices but from the text I would assume remembering to do these things would be actively protecting yourself.

Answer:

Explanation:

Sorry I'm new and I need points ty

The examples of fall hazards that have resulted in deaths on the jobsite are numerous and include falls to the ground or lower levels, falls through existing floor or roof openings, falls through the floor or roof surface, falls on the same level, and many more.

The risks associated with falls are often a result of existing workplace hazards that are either not recognized or not properly addressed. Existing hazards that contribute to falls include lack of proper training and education on fall prevention, lack of personal protective equipment such as harnesses and lifelines, and inadequate guardrails or protective barriers. Additionally, the use of ladders, scaffolds, and elevated platforms may also create fall hazards if not properly secured and maintained.

The consequences of these hazards can be devastating, often resulting in severe injury or death. To mitigate these risks, it is important to implement comprehensive safety programs that focus on identifying, assessing, and controlling fall hazards in the workplace. Employers can take a proactive approach by regularly conducting safety inspections, providing appropriate training and protective equipment, and developing emergency response plans to respond quickly to accidents or incidents. By taking these measures, employers can help ensure a safer work environment and protect the well-being of their employees.

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Constant bubbling in the water-seal chamber of a closed chest drainage system is an abnormal finding, which can signify a leak in the drainage system or in the patient's lung parenchyma.

It is vital that the nurse takes immediate action to troubleshoot and rectify the problem. The nurse should evaluate the level of suction and ensure that the tubing connections are securely fastened and properly secured to prevent any leakages. Additionally, the nurse should observe the patient for signs of respiratory distress, such as shortness of breath, decreased oxygen saturation levels, and increased heart rate, which can indicate a possible pneumothorax. If the patient is exhibiting signs of respiratory distress, the nurse should notify the healthcare provider immediately, as this is a medical emergency and requires prompt intervention. The nurse should also ensure that the patient's vital signs and oxygen saturation levels are monitored closely, and that the drainage system is functioning properly at all times.In summary, the nurse should conclude that constant bubbling in the water-seal chamber of a closed chest drainage system is an abnormal finding that requires prompt intervention to prevent complications such as pneumothorax or respiratory distress. It is essential that the nurse assesses the patient's condition carefully, troubleshoots the drainage system, and contacts the healthcare provider if necessary to ensure the patient's safety and well-being.

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Answer:

For a 1 kWh, heat supplied for the cost of furnace is = $1.66 *1 0^-5 /kJ * 3600 =$0.06/kWh.

Therefore, supplied heat for natural gas furnace is $0.06/kWh which is lower than $0.12/kWh cost of electricity of refrigerator.

Explanation:

Solution

Given that:

The thermal efficiency of furnace = 0.8 or 80%

The cop of refrigerant COP = 3.5

The unit cost of electricity for refrigerant is =$ 0.12kWh

The unit cost of natural gas of furnace is = $1.40/therm

1 therm = 105,500 kJ

Now,

In the summer the usage or utilization of lightening in the house will be lesser than winter, hence the total cost of energy used in the household will be decreased.

Thus,

In winter, the utilization of lightening will be higher with regards to electricity

For a natural gas furnace it is given below:

The unit cost =$1.40/ηth (I therm/105,500)

= 1.40/0.8 (I therm/105,500)

= $1.66 *1 0^-5 /kJ

For a 1 kWh, heat supplied for the cost of furnace is = $1.66 *1 0^-5 /kJ * 3600 =$0.06/kWh.

So,for the heat supplied for natural gas furnace is $0.06/kWh which is less er than $0.12/kWh cost of electricity of refrigerator.

Therefore, the efficiency of energy lightning will reduce the total energy cost of the building both in winter and summer.

The concentration of sulfur dioxide in ppm at the Atascadero Community Health Center HVAC air intakes is approximately 0.307 ppm.

Part A: Estimating the concentration in μg/m3 of SO2 at the Atascadero Community Health Center’s HVAC air intakes located on the roof (12.3 m above ground) as a result of emissions from the stack as shown below:The Gaussian plume equation with reflection is given as;Where;Q = emission rate in gm/sH = stack height, mU = wind speed, m/sσy, σz = standard deviation in the vertical and horizontal directions, mZ = height above ground, mx = distance from the stack, mΔH = effective stack height, mP = atmospheric pressure, N/m2g = gravitational acceleration, 9.81 m/s2Ts, Ta = stack gas temperature and ambient temperature respectively, KPaW = humidity of the flue gas.The following values have been given;Q = 1300 gm/sH = 13.6 mU = 5.44 m/sσy, σz = 1.63* (x/H)1/3 = 1.63 * (12.3/13.6)1/3 = 1.22 mZ = 12.3 mx = 0ΔH = 0.2 * H = 2.72 mP = 101.3 kPa (assume standard pressure)g = 9.81 m/s2Ts = 132+273 = 405 KTa = 22.1+273 = 295.1 KW = 0.012 kg water/kg dry air (given for a sunny day)The value of β, which is a constant given as;Beta, β = (2 x ΔH x g) / Ts = 0.0042/s.To convert g/s to μg/m3, we will use the following formula;1 gm/m3 = 1000 μg/m3.Quality check;Q = 1300 g/s = 1.3 kg/s which is similar to 1.3*3600 = 4680 kg/hr. Assuming a flow rate of 500 m3/hr, then the concentration should be around 10 mg/m3 as a maximum. Our answer should not be greater than this value.Calculation;Therefore, the concentration in μg/m3 of SO2 at the Atascadero Community Health Center’s HVAC air intakes located on the roof (12.3 m above ground) is approximately 189 μg/m3. The calculated value of 189 μg/m3 is less than the maximum value of 10 mg/m3, and therefore, it is reasonable.Part B:Sulfur dioxide, SO2, MW = 64.066 g/mol. The concentration of SO2 in ppm at the Atascadero Community Health Center HVAC air intakes can be determined as follows;The concentration in ppm is calculated using the following formula;1 ppm = (MW x Conc. in μg/m3) / (24.45 x temperature in K / P)Substituting the known values;T = 295.1 K (temperature)P = 101.3 KPa (pressure)MW = 64.066 g/moleConcentration in μg/m3 = 189 μg/m3Therefore, concentration in ppm is; Therefore, the concentration of sulfur dioxide in ppm at the Atascadero Community Health Center HVAC air intakes is approximately 0.307 ppm.Part C: If the stack gas velocity increases, the plume rise would most likely decrease. Assume all other factors do not change. Therefore, the answer is option 3, decrease.Part D: If the emission rate was doubled, the concentration at the receptor would double. Assume all other factors do not change. Therefore, the answer is option 1, double.

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Answer:

Option B, qualification-based selection

Explanation:

Whenever bidding is done for seeking professional services, selection of contractor should be done using qualifications-based selection.

While seeking professional service, focus is on selecting the best quality and value matter, hence the contracting agency with best experience and skill for the job is selected.

n

e

g

r

o

means black in spanish!

Answer:

Explanation:

The value of a will be zero as it is provided that the particle is on the x-axis.

Calculate the velocity of particles along x-axis.

\({\bf{V}} = 2{x^2}t{\bf{\hat i}} + [4y(t - 1) + 2{x^2}t]{\bf{\hat j}}{\rm{ m/s}}\)

Substitute 0 for y.

\(\begin{array}{c}\\{\bf{V}} = 2{x^2}t{\bf{\hat i}} + \left( {4\left( 0 \right)\left( {t - 1} \right) + 2{x^2}t} \right){\bf{\hat j}}{\rm{ m/s}}\\\\ = 2{x^2}t{\bf{\hat i}} + 2{x^2}t{\bf{\hat j}}{\rm{ m/s}}\\\end{array}\)

Here,

\(A = 2{x^2}t \ \ and\ \ B = 2{x^2}t\)

Calculate the magnitude of vector V .

\(.\left| {\bf{V}} \right| = \sqrt {{A^2} + {B^2}}\)

Substitute

\(2{x^2}t \ \ for\ A\ and\ 2{x^2}t \ \ for \ B.\)

\(\begin{array}{c}\\\left| {\bf{V}} \right| = \sqrt {{{\left( {2{x^2}t} \right)}^2} + {{\left( {2{x^2}t} \right)}^2}} \\\\ = \left( {2\sqrt 2 } \right){x^2}t\\\end{array}\)

The velocity of the fluid particles on the x-axis is \(\left( {2\sqrt 2 } \right){x^2}t{\rm{ m/s}}\)

Calculate the direction of flow.

\(\theta = {\tan ^{ - 1}}\left( {\frac{B}{A}} )\)

Here, θ is the flow from positive x-axis in a counterclockwise direction.

Substitute \(2{x^2}t\) as A and \(2{x^2}t\) as B.

\(\begin{array}{c}\\\theta = {\tan ^{ - 1}}\left( {\frac{{2{x^2}t}}{{2{x^2}t}}} \right)\\\\ = {\tan ^{ - 1}}\left( 1 \right)\\\\ = 45^\circ \\\end{array}\)

The direction of flow is \(45^\circ\) from the positive x-axis.

Answer:

I think the answer is d: underground tunnel

Explanation:

Hope this helps

Scientists use a variety of methods to learn about the layers deep inside Earth. One way is by studying seismic waves, which are waves of energy that travel through the Earth's interior during earthquakes.

By analyzing how seismic waves behave as they pass through different layers of the Earth, scientists can infer the composition and properties of each layer. Another way is by examining rocks and minerals that have been brought to the surface by volcanic activity or mountain building. By analyzing the composition of these rocks, scientists can learn about the deeper layers from which they originated. Additionally, scientists use computer models and simulations to study the behavior and composition of the Earth's interior.

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Answer:

provides the Organization with accurate data analytics ,

provides/ensures strict compliance in the organization,

helps in lowering the cost of managing data in the organization and

provides the data scientists access to the exact data they require to work with

Explanation:

The adoption of a data platform by an organization for the purpose of  handling Data, helps to simplify data governance by :

i)provides the Organization with accurate data analytics ,

ii) provides/ensures strict compliance in the organization,

iii) It helps in lowering the cost of managing data in the organization and

iv) provides the data scientists access to the exact data they require to work with

At 1.2mpa pressure and 50c

What is pressure?
By pressing a knife against some fruit, one can see a straightforward illustration of pressure. The surface won't be cut if you press the flat part of the knife against the fruit. The force is dispersed over a wide area (low pressure).

a)Mass flow rate of the refrigerant
Therefore h1= condenser inlet enthalpy =278.28KJ/Kg
saturation temperature at 1.2mpa is 46.29C
Therefore the temperature of the condenser

T2 = 46.29C - 5
T2 = 41.29C

Now,
d)power consumed by compressor W = 3.3KW
Q4 = QL + w = Q4
QL = mR(h1-h2)-W
= 0.0498 x (278.26 - 110.19)-3.3
=5.074KW
Hence refrigerator load is 5.74Kg

(COP)r = 238/53
(Cop) = 4.490

Therefore the above values are the (a) mass flow rate of the refrigerant, b) the refrigerant load, c) the cop, and d) the minimum power input to the compressor for the same refrigeration load.

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We use the tostring method on the string object to specify in detail the elements of an output.

When we print the object of a string class without formatting it, the output will be distorted. However, if we use the tostring method we can fix the problem and present readable output. Here is an example:

import java. io.*;

public class Main{

public static void main(String args[]) throws IOException {

BufferedReader bufEntrada = new BufferedReader(new InputStreamReader(System. in));

Flower foxglove = new Flower("foxglove", "red", "digitalis", "obscura");

System.out.println("imprimo: "+foxglove);

}

}

class Flower {

String name;

String color;

String genus;

String species;

Flower (String theName, String theColor, String theGenus, String theSpecies) {

name=theName;

color=theColor;

genus=theGenus;

species=theSpecies;

}

public String toString() {

 return color +" "+ name+"  ("+genus+ " "+species+")" ;

}

}

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