A cylindrical bar of metal having a diameter of 20.3 mm and a length of 205 mm is deformed elastically in tension with a force of 46400 N. Given that the elastic modulus and Poisson's ratio of the metal are 66.9 GPa and 0.32, respectively, determine the following: (a) The amount by which this specimen will elongate in the direction of the applied stress. (b) The change in diameter of the specimen. Indicate an increase in diameter with a positive number and a decrease with a negative number.

Purchasing  can become worse over time as a result of inflation.

The quantity of items or services that one measure of a currency can be utilized to purchase determines the currency's value.

This is due to the possibility that you will purchase less goods or services as a result of price increases. The buying power of a money is another term for it.

Buying or purchasing power, when used in relation to investments, is the credit limit that a client has in relation to the marginable assets that are currently in their brokerage account.

The quantity of products or services that one dollar can currently buy is measured by its buying power.

Inflation gradually lowers a country's currency purchasing power over time.

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To calculate the force exerted on the cylindrical steam boiler stack by the wind, we need to use the following formula:the force exerted on the cylindrical steam boiler stack by the wind is approximately 9058.4 Newtons.

\(F = 0.625 * Cd * A * ρ * V^2\)  where F is the force exerted, Cd is the drag coefficient, A is the cross-sectional area of the stack, ρ is the density of air, and V is the wind velocity.First, we need to convert the units of the wind velocity to meters per second:50 miles/h = 22.352 m/s  Next, we can calculate the cross-sectional area of the stack:  \(A = π * r^2 = π * (0.5 m)^2 = 0.7854 m^2\)  Assuming a drag coefficient of 1.2 and a density of air of \(1.2 kg/m^3\), we can substitute these values into the formula: \(F = 0.625 * 1.2 * 0.7854 * 1.2 * (22.352 m/s)^2\)F = 0.625 * 1.2 * 0.7854 * 1.2 * (22.352 m/s)^2  F = 9058.4 N  Therefore, the force exerted on the cylindrical steam boiler stack by the wind is approximately 9058.4 Newtons.

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Tech A is correct because contaminants can prevent exhaust gases from interacting with the catalyst converter, which can reduce its dissolved load in converting harmful gases into less harmful ones.

Contaminants such as lead and silicone can indeed prevent the exhaust gases from interacting with the catalyst converter. However, they can be cleaned from the catalyst through processes such as baking or washing. Therefore, Tech B is incorrect. Tech A's statement is accurate in that contaminants can hinder the catalyst's ability to convert exhaust gases.

Tech B is correct because lead and silicone contamination generally cannot be cleaned from the catalyst. These contaminants can damage the catalyst's functionality, often requiring replacement of the catalyst converter.

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ᴄᴏᴍᴘʟᴇᴛᴇɴᴇꜱꜱ ᴍᴇᴀɴꜱ ᴛʜᴇ ꜱᴛᴀᴛᴇ ᴏꜰ ʙᴇɪɴɢ ᴄᴏᴍᴘʟᴇᴛᴇ ᴀɴᴅ ᴇɴᴛɪʀᴇ; ʜᴀᴠɪɴɢ ᴇᴠᴇʀʏᴛʜɪɴɢ ᴛʜᴀᴛ ɪꜱ ɴᴇᴇᴅᴇᴅ.

ʙᴇᴀᴜᴛʏ ᴍᴇᴀɴꜱ combination of qualities, such as shape, colour, or form, that pleases the aesthetic senses, especially the sight.

Before joining a fitting and pipe using socket fusion, it is important to ensure that both the fitting and pipe are clean and free from any debris or contaminants. Additionally, the correct size fitting and pipe must be used to ensure a proper fit.

Socket fusion is a method of joining plastic pipes and fittings together by heating the material and then pressing the heated ends together to form a strong bond. Before the socket fusion process begins, it is important to prepare both the fitting and pipe by ensuring they are clean and free from any debris or contaminants.

This can be achieved by using a specialized cleaning tool or wiping the surfaces with a clean cloth. Additionally, it is crucial to use the correct size fitting and pipe to ensure a proper fit and prevent any leaks or issues in the future. Proper preparation of the materials is crucial to ensuring a successful socket fusion joint.

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Answer:

Your mobile phone has more computing power than the computers used for the Apollo 11 moon landing.

Mobile phones have to “work harder” to get a signal if you are in a moving vehicle.

The first mobile phone was made in 1973.

The first mobile phones that went on sale in 1983 cost nearly $4,000 each.

In 2012 Apple sold 340,000 phones per day.

4 out of 10 Brits admit to snooping on their partners phone.

Out of the 53% of snoopers that found incriminating evidence on their partner’s phone, 5% went on to terminate their relationship.

Waterproof mobile phones came to market because Japanese youngsters like to use them in the shower.

Apparently mobile phones have 18 times more bacteria on them than toilet handles!

Phubbing describes the act of snubbing someone by using your mobile phone in their company.

In 2015 more people died from taking selfies than shark attacks.

Teenagers that use a phone more than 2 hours a day increase their risk of depression and anxiety.

Nomobophobia is severe anxiety caused by the thought or act of losing your phone or running out of battery.

Explanation:

Answer:

a. T-V and P-V diagram are included

b. State 1: Specific volume = 0.0811753 m³/kg

State 2: Specific volume = 0.0811753 m³/kg

State 3: Specific volume = 0.0804155 m³/kg

c. Z = 51.1

d. Quality for state 1 = 100%

Quality for state 2 = 63.47%

Quality for state 3 = 100%

Explanation:

a. T-V and P-V diagram are included

b. State 1: Water vapor

P₁ = 3.0 MPa = 30 bar

T₁ = 300°C = 573.15

Saturation temperature = 233.86°C Hence the steam is super heated

Specific volume = 0.0811753 m³/kg

State 2:

Constant volume formula is P₁/T₁ = P₂/T₂

Specific volume = 0.0811753 m³/kg

T₂ = 200°C = 473.15

Therefore, P₂ = P₁/T₁ × T₂ = 3×473.15/573.15 = 2.4766 MPa

At T₂ water is mixed water and steam and the \(v_f\) = 0.00115651 m³/kg

\(v_g\) = 0.127222 m³/kg

State 3:

P₃ = 2.5 MPa

T₃ = 200°C

Isothermal compression P₂V₂ = P₃V₃

V₃ = P₂V₂ ÷ P₃ = 2.4766 × 0.0811753/2.5 = 0.0804155 m³/kg

Specific volume = 0.0804155 m³/kg

2) Compressibility factor is given by the relation;

\(Z = \dfrac{PV}{RT} = \dfrac{3\times 10^6 \times 0.0811753 }{8.3145 \times 573.15} = 51.1\)

Z = 51.1

3) Gas quality, x, is given by the relation

\(x = \dfrac{Mass_{saturated \, vapor}}{Total \, mass} = \dfrac{v - v_f}{v_g - v_f}\)

Quality at state 1 = Saturated quality = 100%

State 2 Vapor + liquid Quality

Gas quality = (0.0811753 - 0.00115651)/ (0.127222-0.00115651) = 63.47%

State 3: Saturated vapor, quality = 100%.

The environmental Protection Agency (EPA) has two programs that make a business an energy star which are Energy Star program and WaterSense.

This is an agency in the United States, designed to enforce regulations that protect the environment and natural resources.

The Agency does the following :

Hence, the environmental Protection Agency (EPA) has two programs that make a business an energy star which are Energy Star program and WaterSense.

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Answer:

Reflection

Explanation:

The specific behavior of light that will be essential to ensure the success of your design is "Reflection". This is because light maze makes use of a mirror and it's the light that is reflected that we see with our eyes. Also, the manner in which light is reflected off objects will affect the colors that are reflected as well.

Answer:s

Explanation:s

It's the law. Under New York law, you can get a citation for riding your bike while listening to music using headphones or earbuds in both ears. It is lawful, however, to listen to music with only one earbud keeping the other ear free.

Sensory deprivation. One of the main ways that people alert each other to danger on the road is through sound. Whether it's honking, yelling or ringing a bicycle bell, you're less likely to hear any of these warnings if you're listening to music putting you at higher risk of an accident.

Decreased attention. The more stimuli you have to contend with, the more difficult it is to dedicate your full attention to one particular task. If you get caught up in a song or story you're listening to while cycling, it can increase your distractibility which could have disastrous consequences.

The majority of cycling-related accidents involve a cyclist and a motor vehicle. Not surprisingly, the injuries a cyclist suffers in such collisions tend to be disproportionately serious and often fatal. Therefore, if you're cycling in traffic, foregoing the headphones can prove to be a life-saving decision.

Answer:

\(-6111.11\ \text{kJ}\)

\(863.28\ \text{kJ}\)

Explanation:

m = Mass of automobile = 1100 kg

v = Velocity of car = 120 km/h = \(\dfrac{120}{3.6}\ \text{m/s}\)

h = Height of hill = 80 m

g = Acceleration due to gravity = \(9.81\ \text{m/s}^2\)

Change in kinetic energy

\(KE=\dfrac{1}{2}m(u^2-v^2)\\\Rightarrow KE=\dfrac{1}{2}\times 1100\times (0-(\dfrac{120}{3.6})^2)\\\Rightarrow KE=-611111.11\ \text{J}\)

Change in kinetic energy is \(-6111.11\ \text{kJ}\)

Change in potential energy is given by

\(PE=mgh\\\Rightarrow PE=1100\times 9.81\times 80\\\Rightarrow PE=863280\ \text{J}\)

The change in potential energy is \(863.28\ \text{kJ}\).

If we tried to further accelerate a Supersonic fluid with a diverging diffuser,  the pressure will decrease due to an increase in area. This can be described as :

dA/A = dP/ρV² (1-M²) for supersonic flow Mach Number, M: M > 11 - M² < 0 (dA/A) = -K (dP/ρV²)k = 1-M²

Supersonic flow fields have Mach numbers greater than one at every location. Supersonic flows are usually characterized by the presence of shock waves, which cause abrupt changes in flow characteristics and streamlines (in contrast to the smooth, continuous variations in subsonic flows).

Supersonic and subsonic relate to speeds that are faster or slower than the speed of sound, respectively. Supersonic means traveling faster than the speed of sound, which is 343.2 m/s (1,126 ft/s). Subsonic speeds are defined as anything moving slower than the speed of sound.

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103/69 kN = 10.406 tons

If any ladder is used where the worker could be exposed to energized electrical equipment, it is required that the ladder has non-conductive side rails and is in the proper position to avoid any possible electrical hazard.

The non-conductive side rails are essential to prevent electrical conductivity between the ladder and the worker, reducing the risk of electrical shock or electrocution. Additionally, it is essential to ensure that the ladder is positioned correctly to avoid contact with electrical conductors or equipment. The ladder should be placed on stable ground, away from any electrical sources, and at the proper angle to ensure safe climbing and working conditions. In conclusion, by following these safety measures, workers can significantly reduce the risk of electrical hazards and promote a safe working environment.

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A 3-input OR gate with a bubble on two inputs is the same as a 3-input AND gate with four bubbles in total.

Gate in engineering is the process of controlling and regulating the flow of an electrical current or signal. In a computer circuit, the gate acts as a switch, allowing or preventing the flow of electrical current. In communication systems, gates are used to regulate the flow of signals between devices. In addition, gates are used to regulate the speed and timing of the electrical signals.

A 3-input OR gate with a bubble on two inputs is the same as a 3-input AND gate with four bubbles in total. The two bubbles on the two inputs of the OR gate are equivalent to two AND gates with one bubble each. An AND gate with one bubble has the same functionality as an AND gate with two bubbles, so the OR gate is equivalent to two AND gates with one bubble each plus another AND gate with two bubbles. This adds up to four bubbles in total.

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Answer:

77 lb

Explanation:

Equation: F₁d₁ = F₂d₂

Knowns:

d₁ = 30 ft

F₂ = 105 lb

d₂ = 22 ft

Solving for F₁:

1). F₁•30 = 105•22

2). F₁•30=2,310

3).\(\frac{F_1\cdot 30}{30}=\frac{2310}{30}\)

4). F₁ = 77 lb

We create, maintain, and live by often unspoken rules and routines that we hope will keep the family (and each of its members) functional.

What are unspoken rules in families?

There are unspoken guidelines that family members follow in order to maintain order in families dealing with substance use disorders. These guidelines are: Don't trust, don't feel, and don't talk. To keep things as they are, those who are a part of the system abide by these norms.

Why is it important to have family rules?

Children learn what acts are acceptable and unacceptable from their family's rules. As kids get older, they will encounter situations where they must abide by rules. Children who learn to follow rules at home will likely learn to do so elsewhere.

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Fault location techniques are used in power systems for accurate pinpointing of the fault position.

This paper presents a comparative study between two fault location methods in distribution network with Distributed Generation (DG). Both methods are based on computing the impedance using fundamental voltage and current signals. The first method uses one-end information and the second uses both ends

Answer:

=> base transport factor = 0.98.

=> emitter injection efficiency = 0.99.

=> common-base current gain = 0.97.

=> common-emitter current gain = 32.34.

=> ICBO = 1 × 10^-6 A.

=> base transit time = 0.325.

=> lifetime = 1.875.

Explanation:

(Kindly check the attachment for the diagram showing the dominant current components, with proper arrows, for directions in the normal active mode).

The following parameters or data are given for a p-n-p BJT with NE 7 NB 7 NC and they are: IEp = 10 mA, IEn = 100 mA, ICp = 9.8 mA, and ICn = 1 mA.

(1). The base transport factor = ICp/IEp=9.8/10 =  0.98.

(2). emitter injection efficiency =IEp/ IEp + ICn = 10/10 + 0.1 =  0.99.

(3).common-base current gain = 0.98 × 0.99 = 0.9702.

(4).common-emitter current gain =0.97 / 1- 0.97  = 32.34.

(5). Icbo = Ico = 1 × 10^-6 A.

(6). base transit time = 1248 × 10^-2 × (1.38× 10^-23/1.603 × 10^-19). = 0.325.

(7).lifetime;

= > 2 = √0.325 + √ lifetime.

= Lifetime = 2.875.

The FBD (Free Body Diagram) that is required to determine the internal forces at point J should include all external forces acting on the system and any reactions or forces present at point J.

This FBD will allow for the determination of the internal forces, such as shear forces and bending moments, at point J.
To determine the internal forces at point J, you need to draw a Free Body Diagram (FBD). In this FBD, you should include all the external forces acting on the object at point J, such as gravitational force, tension, friction, and any applied forces. Once you have drawn the FBD, you can use equilibrium equations (sum of forces in horizontal and vertical directions equals zero) to solve for the unknown internal forces. After finding the internal forces at point J, you can move on to the next part of your problem. Forces are physical quantities that describe the interactions between objects or systems. They can cause a change in motion or deformation in an object. Some common types of forces include gravitational force, electromagnetic force, frictional force, and normal force. Forces can be described by their magnitude, direction, and point of application. Newton's laws of motion provide a framework for understanding the behavior of objects under the influence of forces. Understanding forces is essential in many fields, including physics, engineering, and biomechanics, as it allows for the prediction and control of the behavior of systems under different conditions.

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Z≤ -4.852 ft, Maximum efficiency is η≅ 0.88 ≅ 88% is the maximum discharge possible

Solution

Given Data:-

D = 14.62in, N = 2134 rc/min, T=20°C. At T= 20°C ɣ=ρg= 62.35 lb/ft³, vapor pressure. Pv = 49.2 lb/ft².

The efficienies at each flow rate is computal by using formula

η = ρgθH / (550) (bhp)

→ As we can See the maximum efficiency point is at θ = 6ft³/s (close to 6ft³/s)

Maximum efficiency is η≅ 0.88 ≅ 88%

b) Given NPSHR = 16 ft,hg=22ft. Zactual. = 9ft  (below the sea surface)

To avoid cavitation NPSH < Pa - Pv/ρg - Z - hf

Z < Pa - Pv/ρg - hf

Z < 2116 - 49.2/62.35 - 16 - 22 [1 atm = 2116 lb/ft2]

Z≤ -4.852 ft

-> Keeping the pump 9 ft below the surface gives 4.148 ft of marign against cavitation.

Hence it is Sufficient to avoid cavitation.

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Answer:

Option A

Explanation:

The size (volume) of the concrete pad is

\(36 * 38 * \frac{8}{12} \\912\)cubic feet or 33.77 cubic yard

Cost of concrete per cubic yard \(= 123\) dollars

Cost of concrete used in concrete pad is

\(33.77 * 123 \\4153\)dollar

The nearest answer to this question is option A

The first name and last name of the owner whose number currently is stored in i owner number are

Owner Num: 12345

First Name: John

Last Name: Smith

Owner Num: 12345

First Name: John

Last Name: Smith

What is owner?

Owner is the person or entity who has legal possession of something, such as a property or other asset. It is an individual or entity that has the legal right to possess, control, or use something. An owner typically has the right to transfer, sell, or otherwise dispose of a property or asset. Ownership can be established through a deed, a contract, or other legal documents. Ownership rights can be divided, shared, or transferred depending on the nature of the asset.

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To find the specific entropy of Propane, we can use the following formula: s = c_p * ln(T/T_0) - R * ln(p/p_0)

Where s is the specific entropy, c_p is the specific heat at constant pressure, T is the temperature, T_0 is the reference temperature (usually taken as 298 K), R is the gas constant, p is the pressure, and p_0 is the reference pressure (usually taken as 1 atm).

Since we are given the pressure and internal energy of propane, we need to first find the temperature. We can use the internal energy equation:

u = c_v * T

where c_v is the specific heat at constant volume.

Rearranging this equation, we get:

T = u / c_v

The specific heat at constant volume for propane is 0.98 kJ/kg*K.

Substituting the given values, we get:

T = 209 kJ/kg / 0.98 kJ/kg*K = 213.27 K

Now we can use the formula for specific entropy:

s = c_p * ln(T/T_0) - R * ln(p/p_0)

The specific heat at constant pressure for propane is 1.67 kJ/kg*K, and the gas constant is 0.518 kJ/kg*K.

Substituting the given values, we get:

s = 1.67 kJ/kg*K * ln(213.27 K/298 K) - 0.518 kJ/kg*K * ln(5.0 psi/1 atm)

s = 2.1446 - 0.4103

s = 1.7343 BTU/ID R

Therefore, the specific entropy of propane is 1.7343 BTU/ID R when p = 5.0 psi and u = 209 kJ/kg.

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Answer:

Dimension of diameter = L

Dimension of speed of advance, V = \(LT^{-1}\)

Dimension of N = \(T^{-1}\)

Dimension of coefficient of viscosity, μ = \(ML^{-1} T^{-1}\)

Dimension of Propeller thrust, \(F = MLT^{-2}\)

Explanation:

The unit of diameter, d is meters, hence dimension of d = L

The speed of advance, V is in m/s, hence the dimension = \(LT^{-1}\)

The fluid density, p, is in kg/m³, hence the dimension = \(ML^{-3}\)

Rotation rate, N, is in Rev/s, hence the dimension = \(T^{-1}\)

coefficient of viscosity μ = \(ML^{-1} T^{-1}\)

The propeller thrust can be given by the formula:

\(F = K_{T} \rho N^{2} d^{4}\)

Where \(K_{T}\) is the thrust coefficient

The dimension of the propeller thrust can then be derived as:

\(F = ML^{-3} (T^{-1})^2 L^4\\F = ML^{-3}T^{-2}L^4\\F = MLT^{-2}\)