A single strain gauge with an unstrained resistance of 200 ohms and a gauge factor of 2, is used to measure the strain applied to a pressure diaphragm. The sensor is exposed to an interfering temperature fluctuation of +/-10 °C. The strain gauge has a temperature coefficient of resistance of 3x104 0/0°C!. In addition, the coefficient of expansion is 2x104m/m°C! (a) Determine the fractional change in resistance due to the temperature fluctuation. (3 marks) (b) The maximum strain on the diaphragm is 50000 p-strain corresponding to 2x105 Pascal pressure. Determine the corresponding maximum pressure error due to temperature fluctuation. (3 marks) (C) The strain gauge is to be placed in a Wheatstone bridge arrangement such that an output voltage of 5V corresponds to the maximum pressure. The bridge is to have maximum sensitivity. Determine the bridge components and amplification given that the sensor can dissipate a maximum of 50 mW. (6 marks) (d) Determine the nonlinearity error at P=105 Pascals (3 marks) (e) Determine the nonlinearity error and compensation for the following cases: (1) Increase the bridge ratio (r= 10), decrease the maximum pressure to half and use 2 sensors in opposite arms. (6 marks) m) Put 2 sensors in the adjacent arms with 1 operating as a "dummy" sensor to monitor the temperature. (2 marks) (in) Put 2 or 4 sensors within the bridge with 2 having positive resistance changes and 2 having negative resistance changes due to the strain. (2 marks)

As a result, a triangle's area is equal to half the sum of its base and height. Triangle area equals base x height / 12.

Heron of Alexandria (c. 62 ce) is credited with developing the Heron's formula, which determines the system of a triangle in terms of the lengths of its sides. If the side lengths are represented by the symbols a, b, and c: Area is equal to the square root of (a + b + c)/2, where s is half the perimeter.

#include<stdio.h>  

                  int main()  

                  { float b ,h, area;  

           b= 5;  

                                      h= 13;  

           area = (b*h) / 2 ;  

           printf("\n\n Area of Triangle is: %f",area);  

                      return (0);  

   }  

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The answer is analyze

Answer:

a

Explanation:

Wastewater flows into a sump pit once it is released into a floor drain.

For better understanding, lets understand what wastewater means

From the above, we can therefore say that the answer that Wastewater flows into a sump pit once it is released into a floor drain is correct

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Answer: yes because fish its like quick sand is will just fall apart into tiny pecies to now it want us to round to the nearst hundredth so what is 12 divide by 3 and time 1

12:3x1=4 because we are rounding to the nearst hundredth

=4

Explanation:

A toddler who can recognize herself in a mirror is more likely to be confident in her daycare class. Explanation: A toddler who can recognize herself in a mirror is more likely to be confident in her daycare class.

It shows that she is developing a sense of self-awareness and is more aware of her place in the world. This can lead to increased confidence and self-esteem, which can translate to better social skills and interactions with others in her daycare class.

In addition, the ability to recognize oneself in a mirror is an important developmental milestone that typically occurs around 18-24 months of age. This is an important sign of healthy cognitive and social-emotional development, and can have a positive impact on the child's overall well-being.

Overall, the ability to recognize oneself in a mirror is an important aspect of a toddler's development, and can have positive implications for their social, emotional, and cognitive growth.

It is a sign of increasing self-awareness and confidence, and can help children develop healthy relationships with others in their daycare class.

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The correct technician is technician A. A capacitor is used for electrical spike suppression. A capacitor is a device that is designed to store energy electrostatically in an electric field. The device consists of two conductors separated by an insulating medium, called the dielectric.

A dielectric is a substance that does not conduct electricity easily. A voltage spike, often known as an electrical spike, is a fast, brief surge in voltage that occurs in an electrical circuit. The spike can last anywhere from a few nanoseconds to a few microseconds. Electrical spike suppression is the method of protecting sensitive electronic equipment from voltage surges using a device known as a transient voltage suppressor (TVS).

A capacitor is used to store an electrical charge, but it can also be utilized in a number of other ways, such as the following: In a filter circuit, a capacitor is used to pass or block DC signals, allowing only AC signals to pass through. A capacitor can be used to smooth out the output of a DC power supply by filtering out ripple and other noise. A capacitor can be used in a timing circuit to control the amount of time that a circuit element is switched on or off.

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The book Principles of Statistics for Engineers and Scientists by William Navidi introduces the fundamental concepts of statistical methods.

It is written in a clear and easy-to-understand language and is suitable for both engineers and scientists.

This principle involves the use of numerical and graphical methods to summarize data. Measures of central tendency such as mean, median and mode are used to describe the center of a data set.

Measures of variation such as range, variance and standard deviation are used to describe the spread of a data set

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Answer:

Answer is explained in the explanation section below.

Explanation:

Solution:

Note: This question is incomplete and lacks necessary data to solve. But I have found the similar question on the internet. So, I will be using the data from that question to solve this question for the sack of concept and understanding.

Data Given:

x = 27 , 44 , 32 , 47, 23 , 40, 34, 52

y = 30, 19,  24,  13 , 29,  19,  21,  14

It is given that,

∑x = 299

∑y = 167

∑\(x^{2}\) = 11887

∑\(y^{2}\) = 3773

We are asked to verify the above values manually in this question.

So,

1. ∑x = 299

Let's verify it:

∑x = 27 + 44 + 32 + 47 + 23 + 40 + 34 + 52

∑x = 299

Yes, it is equal to the given value. Hence, verified.

2. ∑y = 167

Let's verify it:

∑y = 30 + 19 +  24 + 13 + 29 + 19 +  21 +  14

∑y = 169

No, it is not equal to the given value.

3. ∑\(x^{2}\) = 11887

Let's verify it:

For this to find,  first we need to square all the value of x individually and then add them together to verify.

∑\(x^{2}\) = \(27^{2}\) + \(44^{2}\) + \(32^{2}\) + \(47^{2}\) + \(23^{2}\) + \(40^{2}\) + \(34^{2}\) + \(52^{2}\)

∑\(x^{2}\) = 11,887

Yes, it is equal to the given value. Hence, verified.

4. ∑\(y^{2}\) = 3773

Let's verify it:

Again, for this we need to find the squares of all the y values and then add them together to verify it.

∑\(y^{2}\) = \(30^{2}\) + \(19^{2}\) +  \(24^{2}\) + \(13^{2}\) + \(29^{2}\) + \(19^{2}\) +  \(21^{2}\) +  \(14^{2}\)

∑\(y^{2}\)  = 3,845

No, it is not equal to the given value.

When you set up a rig using Meriam Red oil as the manometer fluid, the amplification factor that will be seen in the rig can be determined as follows:What is Manometer?A manometer is a device that is used to measure the pressure of fluids.

A manometer typically comprises a U-shaped tube filled with a fluid, either mercury or water. When the pressure in the fluid being tested increases, the fluid in the tube moves, and the height difference between the two fluid columns in the tube indicates the difference in pressure between the fluid being tested and atmospheric pressure.Amplification FactorThe amplification factor is a measure of the degree of amplification of a system. It refers to the ratio of the output signal of a system to the input signal of that system. It is usually measured in decibels (dB).The amplification factor can be calculated using the following formula:Amplification Factor = h2/h1where h1 is the height of the fluid column on one side of the U-tube and h2 is the height of the fluid column on the other side of the U-tube.Meriam Red OilAs per the given information, Meriam Red oil is used as the manometer fluid.

The specific gravity of Meriam Red oil is 0.81.The amplification factor can be calculated as follows:Amplification Factor = h2/h1The difference in the height of the fluid columns in the U-tube is 10 cm.The pressure difference can be calculated as follows:P = ρghwhere P is the pressure difference, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the height difference.P = (0.81 x 1000 x 9.81 x 0.1) Pa = 797.61 PaTherefore, the amplification factor is:Amplification Factor = h2/h1 = 10/0.79761 = 12.53The amplification factor that will be seen in the rig is 12.53.

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The configuration is connected to electric potential energy, which is a potential energy (measured in joules) resulting from conservative Coulomb forces.

The total effort performed by an external agent to bring a specific charge or system of charges from infinity to the current configuration without acceleration is referred to as the electric potential energy of that charge or system of changes.

The effort necessary to assemble a system of point charges by bringing them close together, as in the system from an infinite distance, is known as the electric potential energy of the system.

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The World Wide Web (WWW) is an information system that allows access to resources over the internet, uses URLs to identify websites and documents it stores and imposes standard restrictions on the websites it stores.

Everyone, not just researchers, now has access to the internet thanks to the world wide web. It connected the world in a way that greatly facilitated communication, sharing, and information access. Since then, technology has enabled people to share their ideas and works via blogs, social networking sites, video sharing, and other channels.

By the year 1989, Tim Berners-Lee had created the internet. He was looking for a fresh method for researchers to quickly exchange the results of their tests. Because of the web, this data could be shared across computers that were online.

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Answer:

a warmer earth due to fossil fuel emissions has milder winters and earlier springs

Explanation:

fossil fuels cause global warming which would make the winters less cold and spring and summer hotter.

Answer:

1. 1111.5MPa

2. 56.1GPa

Explanation:

1. Longitudinal tensile stress can be obtained by obtaining the strength and volume of the fiber reinforcement. The derived formula is given by;

σcl = σm (1 - Vf) + σfVf

Substituting the figures, we will have;

45(1 - 0.30) + 3600(0.30)

45(0.70) + 1080

31.5 + 1080

= 1111.5MPa

2. Longitudinal modulus of elasticity or Young's modulus is the ability of an object to resist deformation. The derived formula is given by;

Ecl = EmVm + EfVf

Substituting the formula gives;

= 2.4 (1 - 0.30) + 131 (0.30)

= 2.4(0.70) + 39.3

= 16.8 + 39.3

= 56.1GPa

Using the appropriate relation, the longitudinal tensile stress and the longitudinal modulus are 1111.50 and 56.10 respectively.

Longitudinal tensile stress can be obtained using the relation :

Substituting the values into the relation:

45(1 - 0.30) + 3600(0.30)

45 × 0.70 + 1080

31.5 + 1080

= 1111.50 MPa

2.)

Longitudinal modulus of elasticity is obtained using the relation :

Substituting the values thus :

2.4 (1 - 0.30) + 131 (0.30)

= 2.4 × 0.70 + 39.3

= 16.8 + 39.3

= 56.10 GPa

Hence, the longitudinal tensile stress and the longitudinal modulus are 1111.50 and 56.10 respectively.

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Given, The x and y components of a velocity field are given by u = x²y and v = -xy². The stream function is given by the equation:

ψ = ∫(-vdx + udy)ψ

= ∫(xy²dx + x²ydy)ψ

= x²y²/2

From the above equation, we can write the equation of streamlines as follows :ψ = x²y²/2 = constant ... (1)

Comparing this with Example 4.2 of the textbook, we can see that it is the same equation as that of the Example 4.2. Therefore, the flow in this problem is the same as that in Example 4.2. In Example 4.2, we were given the velocity potential as φ = x²y - xy²/2. Using the Laplace equation, we found the stream function ψ as ψ = x²y²/2.

Hence, the streamlines were given by the equation ψ = x²y²/2 = constant.Hence, the equation for the streamlines of this flow is ψ = x²y²/2.

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The value of capacitance will be needed to produce a resonant circuit at this frequency is 79.6.

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It is not safe to stand on the top step of a stepladder, even if someone is holding the base. The top step is not designed to bear weight and can lead to instability, causing the ladder to tip over.

It is crucial to follow the ladder's safety guidelines and use it as intended, ensuring all steps are used and the ladder is properly stabilized to prevent accidents and injuries.

When someone holds the base of a stepladder, it can provide some additional stability, but it does not make standing on the top step safe. The top step of a stepladder is not designed to bear weight, and it can be dangerously unstable. Even with someone holding the base, there is still a risk of the ladder tipping over, leading to a fall or injury. To ensure safety, it is important to follow the ladder's guidelines, which typically recommend using all steps and maintaining proper stability, such as securing the ladder against a sturdy surface or using

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The function begin() refers to the first element in the vector, and the function end() refers to one position after the last element in the vector. Therefore, the correct answer is (2) True, (2) True.

Statement 2 is true because the function end() in the vector class refers to one position after the last element in the vector. It returns an iterator pointing to the imaginary element following the last element in the vector. This is often used as an indicator to determine the end of a range when iterating through the vector. Statement 1 is false because the function begin() in the vector class refers to the first element in the vector, not one position before it. The function begin() returns an iterator pointing to the first element of the vector. It provides access to the beginning of the vector for iteration or other operations.

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Answer:

a) The total power consumed at any given moment is 35.2 kilowatts.

b) The energy consumed to complete the task is 48.75 kilowatt-hours.

c) The cost for completing the assignment is 3.168 US dollars.

d) 16.082 kilowatts of power rating could be added to the study space.

Explanation:

a) Let suppose that all appliance work simultaneously. The total power consumed (\(\dot W\)), measured in kilowatts, is the sum of the power of the space heater, the refrigerator and the two light bulbs:

\(\dot W = 30\,kW+5\,kW+0.2\,kW\)

\(\dot W = 35.2\,kW\)

The total power consumed at any given moment is 35.2 kilowatts.

b) A common unit to quantify the energy consumption (\(E\)) is the kilowatt-hour, which is obtained by multiplying the total power consumed, measured in kilowatts, by the operation time (\(\Delta t\)), measured in hours. If we know that \(\dot W = 35.2\,kW\) and \(\Delta t = 1.5\,h\), then the energy consume to complete the task is:

\(E= \dot W \cdot \Delta t\) (1)

\(E = (35.2\,kW)\cdot (1.5\,h)\)

\(E = 48.75\,kWh\)

The energy consumed to complete the task is 48.75 kilowatt-hours.

c) The total cost (\(C\)), measured in US dollars, is determined by multiplying the energy consumed by the unit cost (\(c\)), measured in US dollars per kilowatt-hour, That is: (\(c = 0.065\,\frac{USD}{kWh}\), \(E = 48.75\,kWh\))

\(C = c\cdot E\) (2)

\(C = \left(0.065\,\frac{USD}{kWh} \right)\cdot (48.75\,kWh)\)

\(C = 3.168\,USD\)

The cost for completing the assignment is 3.168 US dollars.

d) If we know that \(C = 5\,USD\), \(c = 0.065\,\frac{USD}{kWh}\) and \(\Delta t = 1.5\,h\), then the energy and power consumed are, respectively:

\(E = \frac{C}{c}\)

\(E = \frac{5\,USD}{0.065\,\frac{USD}{kWh} }\)

\(E = 76.923\,kWh\)

\(\dot W = \frac{E}{\Delta t}\)

\(\dot W = \frac{76.923\,kWh}{1.5\,h}\)

\(\dot W = 51.282\,kW\)

And the additional appliance is:

\(\Delta \dot W = 51.282\,kW-35.2\,kW\)

\(\Delta \dot W = 16.082\,kW\)

16.082 kilowatts of power rating could be added to the study space.

The critical value of the angular velocity obtained just before the slipping starts is the answer to this question and it is \(\bold{\omega = \sqrt{\frac{\mu.g}{r}}}\).

                                         \(\begin{aligned}\\\\F &= ma\\\\f_{max} &\geq ma\\\\ \mu_s.mg &\geq m.r\omega^2\\\\\omega &\leq \sqrt{\frac{\mu_sg}{r}}\\\\\omega_{critical} &= \sqrt{\frac{\mu_sg}{r}}\end{aligned}\)

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Answer:

A) F = 0.011 N

B) ΔP = 5.6 N/m²

Explanation:

We are given;

surface tension coefficient; S = 0.07 N/m

Radius; r = 2.5 mm = 0.025 m

A) Formula to find the surface tension force(F) is given by;

F = SL

Where L is effective length = 2πr

F = 0.07 × 2π × 0.025

F = 0.011 N

B) Formula for difference in pressure droplet is;

ΔP = 2S/r

Thus;

ΔP = (2 × 0.07)/0.025

ΔP = 5.6 N/m²

Answer:

A video camera with onboard storage(whether is a tape or digital memory) will record sound

Answer:

Explanation:

The most common HFC used in air conditioners is R-410A. This refrigerant is better than R-22 in terms of “Ozone Depletion” potential and energy efficiency, but it still causes global warming. A few more HFCs that are commonly used are: R-32 in Air Conditioners and R-134A in refrigerators.

Answer:

The most common refrigerants used for air conditioning over the years include

Explanation:

The most common refrigerants used for air conditioning over the years include.

Answer:

The highly regarded NFPA 72 standard serves as a comprehensive guide for the installation, testing, and maintenance of fire alarm systems across the United States. This standard provides detailed requirements and recommendations to ensure that alarm systems are capable of notifying building occupants of a fire emergency and averting potential harm. One key aspect of the NFPA 72 standard is the identification of the type of alarm that may result from improper installation of an alarm system.

As outlined by the NFPA 72 standard, the type of alarm that may occur due to poor installation is a nuisance alarm. A nuisance alarm is a false alarm that is triggered when there is no actual danger present. Nuisance alarms can be caused by an overly sensitive detection system, incorrect installation of the sensors, or poor system design. These alarms can disrupt building occupants and reduce the effectiveness of the fire alarm system, leading to complacency in the face of a real emergency. Therefore, it is vital to ensure proper installation of fire alarm systems to minimize the occurrence of nuisance alarms and maintain the reliability of the alarm system.

In summary, following the NFPA 72 standard for the installation and maintenance of fire alarm systems is critical to ensure the safety of building occupants in the event of a fire. Proper installation of the alarm system is essential to prevent nuisance alarms, which can disrupt occupants and lead to complacency in the face of a real emergency. By adhering to the guidelines established in this standard, building owners and managers can guarantee that their fire alarm systems will be effective in alerting occupants to potential danger and reducing the risk of injuries, fatalities, and property damage.

Answer:

The highly regarded NFPA 72 standard serves as a comprehensive guide for the installation, testing, and maintenance of fire alarm systems across the United States. This standard provides detailed requirements and recommendations to ensure that alarm systems are capable of notifying building occupants of a fire emergency and averting potential harm. One key aspect of the NFPA 72 standard is the identification of the type of alarm that may result from improper installation of an alarm system.As outlined by the NFPA 72 standard, the type of alarm that may occur due to poor installation is a nuisance alarm. A nuisance alarm is a false alarm that is triggered when there is no actual danger present. Nuisance alarms can be caused by an overly sensitive detection system, incorrect installation of the sensors, or poor system design. These alarms can disrupt building occupants and reduce the effectiveness of the fire alarm system, leading to complacency in the face of a real emergency. Therefore, it is vital to ensure proper installation of fire alarm systems to minimize the occurrence of nuisance alarms and maintain the reliability of the alarm system.In summary, following the NFPA 72 standard for the installation and maintenance of fire alarm systems is critical to ensure the safety of building occupants in the event of a fire. Proper installation of the alarm system is essential to prevent nuisance alarms, which can disrupt occupants and lead to complacency in the face of a real emergency. By adhering to the guidelines established in this standard, building owners and managers can guarantee that their fire alarm systems will be effective in alerting occupants to potential danger and reducing the risk of injuries, fatalities, and property damage.

In conclusion, the output resistance of the two-stage amplifier, not including the 50-ohm load resistance, is mainly determined by the resistance in the emitter circuit of the second stage (Re2). This resistance can significantly affect the overall output resistance of the amplifier.

The output resistance of a two-stage amplifier can be calculated by analyzing the individual stages and their interactions. Since the load resistance of 50 ohms is not included in this calculation, we can focus solely on the amplifier itself.
To determine the output resistance, we need to examine the first stage, which is typically a voltage amplifier, and the second stage, which is commonly a current amplifier. The output resistance of the two stages can be calculated separately, and then combined.
1. First Stage: The output resistance of the voltage amplifier is determined by the resistance in its collector circuit. Let's say the collector resistance is denoted as Rc1.
2. Second Stage: The output resistance of the current amplifier is influenced by the resistance in its emitter circuit. Let's denote this resistance as Re2.
Now, to find the combined output resistance:
1. Connect the output of the first stage to the input of the second stage.
2. Since the input impedance of the second stage is typically much higher than Rc1, we can ignore the effect of Rc1 on the overall output resistance.
3. However, Re2 has a significant impact on the output resistance.
4. The combined output resistance (Ro) is approximately equal to Re2.
In conclusion, the output resistance of the two-stage amplifier, not including the 50-ohm load resistance, is mainly determined by the resistance in the emitter circuit of the second stage (Re2). This resistance can significantly affect the overall output resistance of the amplifier.

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Answer:

immediately

Explanation:

Both Tech A and Tech B are correct. Drivability technicians diagnose both emissions problems and performance problems in vehicles.

Drivability technicians specialize in diagnosing and resolving issues related to the performance and emissions of vehicles. They have the expertise to identify and address problems that affect the drivability and overall functioning of a vehicle. These technicians utilize various diagnostic tools and techniques to pinpoint the root causes of issues and provide appropriate solutions.

Tech A is correct in stating that drivability technicians diagnose emissions problems. They are trained to identify and troubleshoot issues related to a vehicle's emissions system, including components such as the catalytic converter, oxygen sensors, and exhaust gas recirculation (EGR) system. Their knowledge of emissions regulations and diagnostic procedures helps them effectively diagnose and repair emission-related problems.

Tech B is also correct in stating that drivability technicians diagnose performance problems. These technicians have a deep understanding of a vehicle's engine, fuel system, ignition system, and other components that contribute to its performance. They are skilled at identifying issues that can affect performance, such as misfires, poor acceleration, rough idle, or lack of power, and they can diagnose and resolve these problems to restore optimal performance.

In conclusion, both Tech A and Tech B are correct, as drivability technicians are responsible for diagnosing both emissions problems and performance problems in vehicles.

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Answer:

Some ways that an operations manager may alter operations to meet customer demand include understanding who the customer is (this could be conducted through surveys and feedback opportunities for the customer) and making stock demand be more efficient to meet customer demand.