Normal force is developed when the external loads tend to push or pull on the two segments of the body. If the thickness ts10/D,it is called thin walled vessels. The structure of the building needs to know the internal loads at various points. A balance of forces prevent the body from translating or having a accelerated motion along straight or curved path. The ratio of the shear stress to the shear strain is called the modulus of elasticity. True or false
Answers
Normal force is developed when the external loads tend to push or pull on the two segments of the body. If the thickness ts10/D, it is called thin-walled vessels.
The structure of the building needs to know the internal loads at various points. A balance of forces prevent the body from translating or having an accelerated motion along a straight or curved path. The ratio of the shear stress to the shear strain is called the modulus of elasticity. This statement is true.Modulus of ElasticityThe Modulus of elasticity (E) is a measure of the stiffness of a material and is characterized as the proportionality constant between a stress and its relative deformation. If a material deforms by the application of an external force, a new internal force that restores the original shape of the material is produced.
The internal force that opposes external forces is a result of the relative deformation, which can be defined by the elastic modulus E. This force is referred to as a stress and the relative deformation as strain.The modulus of elasticity is the ratio of the stress (force per unit area) to the strain (deformation) that a material undergoes when subjected to an external force. In a stress-strain diagram, the modulus of elasticity is calculated as the slope of the linear region of the curve, which is referred to as the elastic region.In conclusion, the statement, "The ratio of the shear stress to the shear strain is called the modulus of elasticity," is true.
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Related Questions
When servicing a heat pump system, which of the following is true regarding the installation of gauges on the system?
A. Gauges should be installed on the system each time the system is serviced.
B. Only the low-side gauge should be connected to the system during service.
C. Only the high-side gauge should be connected to the system during service.
D. Gauges should only be installed on a system if absolutely necessary.
Answers
When servicing a heat pump system, B. Only the low-side gauge should be connected to the system during service.
When servicing a heat pump system, it is generally recommended to only connect the low-side gauge to the system during the service process. The low-side gauge is used to measure the pressure and temperature of the refrigerant on the low-pressure side of the system. Connecting only the low-side gauge reduces the risk of contamination to the refrigerant, which can occur if the high-side gauge is connected and refrigerant is accidentally released into the atmosphere.
Additionally, connecting only the low-side gauge allows for a more accurate measurement of the refrigerant pressure, as the high-side gauge can be influenced by the compressor's operation. To ensure the proper operation of the heat pump system, it is important to follow industry guidelines and best practices when servicing the system, including the proper installation and use of gauges.
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For Figure Below, if the elevation of the benchmark A is 25.00 m above MSL:
1. Using the Rise and Fall Method, find the reduced level for all points. (Construct the Table)
2. Using HPC Method, find the reduced level for all points. ( Construct the Table).
3. Show all required Arithmetic checks for your work. For Item 1 and 2.
4. What is the difference in height between points H and D?
5. What is the gradient of the line connecting A and J, knowing that horizontal distance = 200
m.
Answers
Answer:
For Figure Below, if the elevation of the benchmark A is 25.00 m above MSL:
1. Using the Rise and Fall Method, find the reduced level for all points. (Construct the Table)
2. Using HPC Method, find the reduced level for all points. ( Construct the Table).
3. Show all required Arithmetic checks for your work. For Item 1 and 2.
4. What is the difference in height between points H and D?
5. What is the gradient of the line connecting A and J, knowing that horizontal distance = 200
m.
.Write a program that uses a void function void miles_to_km() to generate a kilometer
conversion table for all even kilometers from 2 miles to 62 miles. Use two decimal
places for kilometers.
Answers
Explanation:
rational
Step-by-step explanation:
The discriminant (d) of a quadratic equation ax^2 + bx + c = 0ax
2
+bx+c=0 is:
\boxed{\mathrm{d =} \ b^2 - 4ac}
d= b
2
−4ac
.
If:
• d > 0, then there are two real solutions
• d = 0, then there is a repeated real solution
• d < 0, then there is no real solution.
In this question, we are given the quadratic equation 3x^2 + 4x - 2 = 03x
2
+4x−2=0 . Therefore, the discriminant of the equation is:
b² - 4ac = (4)² - 4(3)(-2)
= 16 - (-24)rational
Step-by-step explanation:
The discriminant (d) of a quadratic equation ax^2 + bx + c = 0ax
2
+bx+c=0 is:
\boxed{\mathrm{d =} \ b^2 - 4ac}
d= b
2
−4ac
.
If:
• d > 0, then there are two real solutions
• d = 0, then there is a repeated real solution
• d < 0, then there is no real solution.
In this question, we are given the quadratic equation 3x^2 + 4x - 2 = 03x
2
+4x−2=0 . Therefore, the discriminant of the equation is:
b² - 4ac = (4)² - 4(3)(-2)
= 16 - (-24)
= 40
Since the discriminant, 40, is greater than zero, the quadratic equation has 2 rational solutions.
= 40
Since the discriminant, 40, is greater than zero, the quadratic equation has 2 rational solutions.
Un mol de gas ideal realiza un trabajo de 3000 J sobre su entorno, cuando se expande de manera isotermica a una temperatura de 58°C, cuando su volumen inicial es de 25 L. Determinar el volumen final
Answers
Answer:
74,4 litros
Explanation:
Dado que
W = nRT ln (Vf / Vi)
W = 3000J
R = 8,314 JK-1mol-1
T = 58 + 273 = 331 K
Vf = desconocido
Vi = 25 L
W / nRT = ln (Vf / Vi)
W / nRT = 2.303 log (Vf / Vi)
W / nRT * 1 / 2.303 = log (Vf / Vi)
Vf / Vi = Antilog (W / nRT * 1 / 2.303)
Vf = Antilog (W / nRT * 1 / 2.303) * Vi
Vf = Antilog (3000/1 * 8,314 * 331 * 1 / 2,303) * 25
Vf = 74,4 litros
a commercial refrigerator with r-134a as the working fluid is used to keep the refrigerated space at -35 c by rejecting waste heat to cooling water that enters the condenser at 18 c at a rate of 0.25 kg/s and leaves at 26 c. the refrigerant enters the condenser at 1.2 mpa and 50 c and leaves at the same pressure subcooled by 6 c. if the compressor consumes 3.3 kw of power , determine (a) the 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.
Answers
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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Determine the flow velocities at the inlet and exit sections of an
inclined tapering pipe using fluid flow theory and given pressure
readings and flow rates.
There is a sloping pipeline that has one end 1.35 m higher than the
other. The pipe section tapers from 0.95 m diameter at the top end to
0.44m diameter at the lower end. The difference in pressure between
the two sections is 12.35kPa, with pressure being greater at higher
level.
Your task is to determine the inlet and exit velocities and the
volume
flow rate of the inclined pipe.
Answers
Answer:
The inlet velocity v₁ = 6.66 m/s, the exit velocity v₂ = 7.32 m/s and the volume flow rate Q = 4.72 m³/s
Explanation:
Using Bernoulli's equation
P₁ + ρgh₁ + 1/2ρv₁² = P₂ + ρgh₂ + 1/2ρv₂²
P₁ - P₂ + ρgh₁ - ρgh₂ = 1/2ρv₂² - 1/2ρv₁²
ΔP + ρgΔh = 1/2ρ(v₂² - v₁²) (1)
where ΔP = pressure difference = 12.35 kPa = 12350 Pa
Δh = height difference = 1.35 m
From the flow rate equation Q = A₁v₁ = A₂v₂ and v₁ = A₂v₂/A₁ = d₂²v₂/d₁² where v₁ and v₂ represent the inlet and exit velocities from the pipe and d₁ = 0.95 m and d₂ = 0.44 m represent the diameters at the top end and lower end of the pipe respectively.
Substituting v₁ into (1), we have
ΔP + ρgΔh = 1/2ρ(v₂² - (d₂²v₂/d₁² )²)
ΔP + ρgΔh = 1/2ρ(v₂² - (d₂/d₁)⁴v₂²)
v₂ = √[2(ΔP + ρgΔh)/ρ(1 - (d₂/d₁)⁴)}
substituting the values of the variables, we have
v₂ = √[2(12350 Pa + 1000 kg/m³ × 9.8 m/s² × 1.35 m)/(1000 kg/m³ (1 - (0.44 m/0.95 m)⁴))}
= √[2(12350 Pa + 13230 Pa)/(1000 kg/m³ × 0.954)]
= √[2(25580 Pa)/954 kg/m³]
= √[51160 Pa/954 kg/m³]
= √53.627
= 7.32 m/s
v₁ = d₂²v₂/d₁²
= (0.44 m/0.95 m)² × 7.32 m/s
= (0.954)² × 7.32 m/s
= 6.66 m/s
The volume flow rate Q = A₁v₁
= πd₁²v₁/4
= π(0.95 m)² × 6.66 m/s ÷ 4
= 18.883 m³/s ÷ 4
= 4.72 m³/s
So, the inlet velocity v₁ = 6.66 m/s, the exit velocity v₂ = 7.32 m/s and the volume flow rate Q = 4.72 m³/s
please answer the question
Answers
The discrepancy between experimental and theoretical entropy values can be used to determine residual entropy.
What, using an example, is residual entropy? The discrepancy between experimental and theoretical entropy values can be used to determine residual entropy.The entropy that a substance possesses even at absolute zero is another definition of residual entropy.Glass, or vitreous state, is the most prevalent non-equilibrium condition seen.Carbon monoxide is yet another case in point.The dipole moment of it is small.Included in the list of examples is an amorphous solid.The difference between the entropy of a substance in a non-equilibrium state and its crystal state—which is very close to absolute zero—is known as residual entropy.In comparison to the experimental residual entropy of 3.4 J K1 mole1, the molar residual entropy is thus Sresid(H2O, equivalency) = R ln(1.5) = 3.37 J K1 mole1.To learn more about entropy refer
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A particulate monitor has a power supply consisting of two batteries in parallel. Either battery is adequate to operate the monitor. However, since the failure of one battery places an added strain on the other, the conditional probability that the second battery will fail, given the failure of the first, is greater than the probability that the first will fail. On the basis of testing it is known that 7% of the monitors in question will have at least one battery failed by the end of their design life, whereas in 1% of the monitors both batteries will fail during the design life.
(a) Calculate the battery failure probability under normal operating conditions.
(b) Calculate the conditional probability that the battery will fail, given that the other has failed.
Answers
Answer:
yrt a
Explanation:
Tammy, age 18 months, has a beach ball and a Nerf ball, and she knows what a basketball and a tennis ball are. When she encounters a golf ball for the first time, she mentally adds this new example to her "ball" scheme. Adding another example to an existing scheme is a process that Piaget called ________.
Answers
Answer:
Explanation:
The process that Piaget called "adding another example to an existing scheme" is called assimilation. Assimilation refers to the cognitive process of incorporating new information or experiences into existing mental schemas or frameworks. In this case, Tammy assimilates the new example of a golf ball into her existing "ball" scheme, expanding her understanding of what falls under the category of a ball.
Select the correct answer.
Which country first initiated the slow city movement?
A. New Zealand
B. Italy
C. United States
D. China
Answers
Answer:
B. Italy
Explanation:
Hope this helps :)
Suppose a program is supposed to do the following:
Set the sign flag (SF) to 1 if the original value in al is negative, otherwise SF should be set to 0.
All of the options below will correctly do this EXCEPT:
not al
xor al, 0
and al, al
or al, 0
not al
Answers
The incorrect options for the program set the sign flag (SF) to 1 if the original value in al is negative, otherwise SF should be se to 0 is not al.
What is xor, and, or, not?
Xor, and, or, not is called as binary operation. Binary operation is operation to combine two binary number to produce another number.
To know the incorrect options we will evaluate each option,
For xor al, 0
The program is to xor-ing each value of al by 0. Xor result will be 1 if only single 1 in set. i.e.
0 xor 0 = 0
0 xor 1 = 1
1 xor 0 = 1
1 xor 1 = 0
So, this operation will keep the highest bit, and set the SF accordingly.
For or al, 0
The program is to or-ing each value of al by 0. Or result will be 1 except if both input is 0. i.e.
0 or 0 = 0
0 or 1 = 1
1 or 0 = 1
1 or 1 = 1
So, this operation will keep the highest bit, and set the SF accordingly.
For and al, al
The program is to and-ing each value of al by itself. And result will be 1 if only both input is 1. i.e.
0 or 0 = 0
0 or 1 = 0
1 or 0 = 0
1 or 1 = 1
So, this operation will keep the highest bit, and set the SF accordingly.
For not al
The program is to not-ing each value of al. Not result will be flipping the value. i.e.
not 0 = 1
not 1 = 0
So, this operation will flip the highest bit, and set the SF wrongly.
So, the wrong option is not al
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At least 1 sources must be from an organization website (.org) and 1 source must be from and educational website .edu) Do not use the definitions from the textbook. Copy those definitions. Include the website where you found the definition. Lastly, write down your own definition of Engineering, preferably in 4-5 sentences. Maximum of 150 words for your definition.???
Answers
Answer:
If we were to put a website here on Brainly, the moderators will delete it
Explanation:
Please trust me on this because the moderators delete a lot of things. They have been deleting people's answers for some odd reason saying it goes against their "honor code" but whatever
true or false: a bezier curve is guaranteed to pass through the first control point and the last control point.
Answers
Answer:
True
Explanation:
in fort a shied pot is 50
Answers
Given as input two strings, word and a separator, and an integer count, set result to a big string made of count occurrences of the word, separated by the separator string - for input of "Word", "X", 3 rightarrow "WordXWordXword" - for input of "This", "And", 2 rightarrow "ThisAndThis" - for input of "This", "And", 1 rightarrow "
This" This is a C++ question void plMain() -{cout << "Enter a word, a separator and a count: "; string word, sep; int count; cin >> word >> sep >> count; string result = "not complete";//----YOUR CODE GOES ONLY BELOW THIS LINE//YOUR CODE GOES ONLY ABOVE THIS LINE cout << endl//make sure on Last Line << "After processing: [\"" result << ""\""]"" << endl;}"
Answers
To answer your C++ question, you need to create a big string with 'count' occurrences of the 'word', separated by the 'separator'. You can achieve this using a loop. Here's the code you need to insert between the specified lines:
```cpp
string result = "";
for (int i = 0; i < count; i++) {
result += word;
if (i < count - 1) {
result += sep;
}
}
```
This loop iterates 'count' times, appending the 'word' to 'result' and then appending the 'separator' if it is not the last iteration.
After the loop, 'result' will have the desired format.
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Pie charts should have no more than eight segments. True or False?
Answers
Answer:
Explanation:
Pie charts generally should have no more than eight segments.
the beam supports a uniform dead load of 0.4k/ft, a live load of 1.5k/ft and a single live concentrated force of 8k. determine (a) the maximum positive moment at c and (b) the maximum positive vertical reaction at b. assume a is a roller and b is a pin.
Answers
The maximum positive moment at c is 135k/ft
the maximum positive vertical reaction at b is 27k
Part a
Maximum positive moment at c
For maximum positive moment at C and as per Muller's principle, ILD influence line will be on moment at с, this is calculated using the equation below:
Maximum positive moment at c = \((\frac{1}{2} *20*5*(0.4+0.5) )+(5*8)\)
= 135k.ft
Part b
Maximum positive vertical reaction at b
To find this using Muller's principle, we keep dead load throughout the span and consequently keep point load at B
Maximum positive vertical reaction at b = \((\frac{1}{2} *20*1*(0.4+1.5))+(1*8)\)
= 27k
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What is "Engineering"?
Answers
When traveling at higher speeds (40 mph or faster), the most fuel efficient way to keep the car cool is to
Answers
Answer:
When traveling at higher speeds (40 mph or faster), the most fuel-efficient way to keep the car cool is to follow these tips:
1. Use the vehicle's ventilation system: Instead of relying on air conditioning, use the car's ventilation system to circulate fresh air from outside. This helps to cool down the interior without putting extra load on the engine, thus saving fuel.
2. Close windows and sunroofs: To reduce wind resistance and drag, close all windows and sunroofs while driving at higher speeds. Open windows create drag, which can increase fuel consumption.
3. Park in the shade: Whenever possible, park your car in a shaded area to avoid excessive heating when it's not in use. This can help keep the car cooler and reduce the need for extra cooling when you start driving.
4. Use reflective sunshades or window tinting: Use reflective sunshades on your windshield and window tinting on side windows to reduce the amount of heat entering the car. This can help keep the interior cooler, reducing the need for excessive cooling while driving.
5. Maintain your vehicle: Regular maintenance, such as checking and replacing coolant, inspecting the radiator, and ensuring proper functioning of the engine cooling system, can help keep your car running efficiently and prevent overheating.
6. Plan your trips strategically: If possible, try to avoid driving during the hottest part of the day. By planning your trips to avoid peak temperatures, you can reduce the strain on your vehicle's cooling system and minimize the need for excessive cooling.
Remember that these tips are specifically focused on keeping the car cool while maintaining fuel efficiency at higher speeds. In certain circumstances, such as extremely hot weather, using the air conditioning sparingly may be necessary for passenger comfort, but it will increase fuel consumption.
many flat roofs are provided with a slight slope, typically from front to rear, in order to:
Answers
The inclusion of a slight slope on flat roofs, typically from front to rear, is essential for effective drainage, preventing water accumulation, and maintaining the integrity of the roof structure. It is a key design feature that ensures the long-term performance and durability of flat roofs.
The primary reason for incorporating this slope is to prevent water from pooling or accumulating on the roof's surface. If a flat roof were entirely level, water could collect in low-lying areas and cause structural issues, leaks, or damage to the roofing material over time. By introducing a gentle slope, the roof encourages water to flow towards drainage points, such as gutters or scuppers, where it can be efficiently directed away from the building.
In addition to enhancing drainage, a slight slope can also contribute to the overall longevity and durability of the roof. By minimizing the amount of time water remains in contact with the roof surface, the potential for water-related problems, such as leaks or deterioration, is reduced. Proper drainage helps prevent excessive moisture buildup and supports the longevity of the roofing system.
Overall, the inclusion of a slight slope on flat roofs, typically from front to rear, is essential for effective drainage, preventing water accumulation, and maintaining the integrity of the roof structure. It is a key design feature that ensures the long-term performance and durability of flat roofs.
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What needs to be done before joining a fitting and pipe using socket fusion?
Answers
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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Large wind turbines with blade span diameters of over 100 m are available for electric power generation. Consider a wind turbine with a blade span diameter of 100 m installed at a site subjected to steady winds at 8 m/s. Taking the overall efficiency of the wind turbine to be 32 percent and the air density to be 1.25 kg/m3 , determine the electric power generated by this wind turbine. Also, assuming steady winds of 8 m/s during a 24-hour period, determine the amount of electric energy and the revenue generated per day for a unit price of $0.09/kWh for electricity
Answers
Answer:
The wind turbine generates \(19297.222\) kilowatt-hours of electricity daily.
The wind turbine makes a daily revenue of 1736.75 US dollars.
Explanation:
First, we have to determine the stored energy of wind (\(E_{wind}\)), measured in Joules, by means of definition of Kinetic Energy:
\(E_{wind} = \frac{1}{2}\cdot \dot m_{wind}\cdot \Delta t \cdot v_{wind}^{2}\) (Eq. 1)
Where:
\(\dot m_{wind}\) - Mass flow of wind, measured in kilograms per second.
\(\Delta t\) - Time in which wind acts in a day, measured in seconds.
\(v_{wind}\) - Steady wind speed, measured in meters per second.
By assuming constant mass flow and volume flows and using definitions of mass and volume flows, we expand the expression above:
\(E_{wind} = \frac{1}{2}\cdot \rho_{air}\cdot \dot V_{air} \cdot \Delta t \cdot v_{wind}^{2}\) (Eq. 1b)
Where:
\(\rho_{air}\) - Density of air, measured in kilograms per cubic meter.
\(\dot V_{air}\) - Volume flow of air through wind turbine, measured in cubic meters per second.
\(E_{wind} = \frac{1}{2}\cdot \rho_{air}\cdot A_{c}\cdot \Delta t\cdot v_{wind}^{3}\) (Eq. 2)
Where \(A_{c}\) is the area of the wind flow crossing the turbine, measured in square meters. This area is determined by the following equation:
\(A_{c} = \frac{\pi}{4}\cdot D^{2}\) (Eq. 3)
Where \(D\) is the diameter of the wind turbine blade, measured in meters.
If we know that \(\rho_{air} = 1.25\,\frac{kg}{m^{3}}\), \(D = 100\,m\), \(\Delta t = 86400\,s\) and \(v_{wind} = 8\,\frac{m}{s}\), the stored energy of the wind in a day is:
\(A_{c} = \frac{\pi}{4}\cdot (100\,m)^{2}\)
\(A_{c} \approx 7853.982\,m^{2}\)
\(E_{wind} = \frac{1}{2}\cdot \left(1.25\,\frac{kg}{m^{3}} \right) \cdot (7853.982\,m^{2})\cdot (86400\,s)\cdot \left(8\,\frac{m}{s} \right)^{3}\)
\(E_{wind} = 2.171\times 10^{11}\,J\)
Now, we proceed to determine the quantity of energy from wind being used by the wind turbine in a day (\(E_{turbine}\)), measured in joules, with the help of the definition of efficiency:
\(E_{turbine} = \eta\cdot E_{wind}\) (Eq. 4)
Where \(\eta\) is the overall efficiency of the wind turbine, dimensionless.
If we get that \(E_{wind} = 2.171\times 10^{11}\,J\) and \(\eta = 0.32\), then the energy is:
\(E_{turbine} = 0.32\cdot (2.171\times 10^{11}\,J)\)
\(E_{turbine} = 6.947\times 10^{10}\,J\)
The wind turbine generates \(6.947\times 10^{10}\) joules of electricity daily.
A kilowatt-hours equals 3.6 million joules. We calculate the equivalent amount of energy generated by wind turbine in kilowatt-hours:
\(E_{turbine} = 6.947\times 10^{10}\,J\times\frac{1\,kWh}{3.6\times 10^{6}\,J}\)
\(E_{turbine} = 19297.222\,kWh\)
The wind turbine generates \(19297.222\) kilowatt-hours of electricity daily.
Lastly, the revenue generated per day can be found by employing the following:
\(C_{rev} = c\cdot E_{turbine}\) (Eq. 5)
Where:
\(c\) - Unit price, measured in US dollars per kilowatt-hour.
\(C_{rev}\) - Revenue generated by the wind turbine in a day, measured in US dollars.
If we know that \(c = 0.09\,\frac{USD}{kWh}\) and \(E_{turbine} = 19297.222\,kWh\), then the revenue is:
\(C_{rev} = \left(0.09\,\frac{USD}{kWh} \right)\cdot (19297.222\,kWh)\)
\(C_{rev} = 1736.75\,USD\)
The wind turbine makes a daily revenue of 1736.75 US dollars.
The abbreviation for the plastic pipe used in hot and cold water supply systems is:____.
Answers
The abbreviation for the plastic pipe used in hot and cold water supply systems is PEX.
PEX stands for cross-linked polyethylene, which is a type of plastic material commonly used in plumbing systems for hot and cold water supply. It has become increasingly popular in recent years due to its numerous advantages over traditional piping materials.
PEX pipes are highly flexible, making them easier to install compared to rigid pipes like copper or PVC. The flexibility allows for simpler routing and bending around obstacles, reducing the need for additional fittings and joints. This not only saves time during installation but also minimizes the risk of leaks since fewer connections are required.
In addition to its flexibility, PEX pipes are also resistant to corrosion and scale buildup. Unlike metal pipes, PEX does not rust or corrode over time, ensuring a longer lifespan for the plumbing system. The smooth interior surface of PEX pipes also helps prevent mineral deposits and scale formation, which can restrict water flow and affect performance.
Another advantage of PEX is its ability to withstand high temperatures. It is suitable for both hot and cold water applications, making it a versatile choice for residential and commercial plumbing systems. PEX pipes have excellent thermal conductivity, meaning they retain heat more effectively than metal pipes, resulting in less heat loss during water transportation.
Furthermore, PEX is known for its durability and resistance to freezing. It can expand and contract without cracking, making it ideal for regions with cold climates. This feature reduces the risk of burst pipes during freezing temperatures, providing added peace of mind for homeowners.
In conclusion, the abbreviation for the plastic pipe used in hot and cold water supply systems is PEX. PEX pipes offer flexibility, corrosion resistance, scale resistance, high-temperature tolerance, and durability. These characteristics make PEX a reliable and efficient choice for modern plumbing installations.
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A. Describes two calls to the procedure identified in written response 3c. Each call must pass a different argument(s) that causes a different segment of code in the algorithm to execute.
First call:
Second call:
b. Describes what condition(s) is being tested by each call to the procedure
Condition(s) tested by the first call:
Condition(s) tested by the second call:
c. Identifies the result of each call Result of the first call:
Result of the second call:
code:
//==============================================================
onclick="program(eval(document. GetElementById('min'). Value),
eval(document. GetElementById('max'). Value) )" />
//===============================================================
function print(str)
{
document. GetElementById("disp"). InnerHTML += str + "
";
}
function sum(list)
{
var total = 0;
for (index = 0; index < list. Length; index++)
{
total += list[index];
}
return total;
}
function displayPercentages(list)
{
print('index: percentage');
var total = sum(list);
var percentagesSum = 0;
for (index = 0; index < list. Length; index++)
{
var percentage = list[index] / total;
print(index + " : " + percentage );
percentagesSum += percentage;
}
return percentagesSum;
}
function playGame(min, max)
{
var number = min + Math. Trunc( (max-min+1)*Math. Random() );
// print(number);
// var min = 0;
// var max = 100;
for (rep = 1; rep < 10; rep++) {
var guess = Math. Trunc( (min + max)/2 ); // only use quotient
// print("The guess is " + guess);
if (guess == number) {
// print("The number is " + number + ", you are correct in " + rep + " guesse(s)!");
return rep;
}
else if (guess > number)
{
// print("The guess is too large");
max = guess - 1;
}
else
{
// print("The guess is too small");
min = guess + 1;
} } }
function program(min, max)
{
var list = [0,0,0,0,0,0,0,0,0,0];
document. GetElementById("disp"). InnerHTML = "";
for (game = 1; game <= 1000000; game++)
{
list[ playGame(min, max) ]++;;
}
print(list);
var sumOfPercentages = displayPercentages(list);
print(sumOfPercentages);
}
Answers
Two calls with different arguments can be made to the "program" function. The results will vary depending on the input values.
a) The procedure being called in this code is "playGame(min, max)." The first call to this procedure is in the "program(min, max)" function, where "min" and "max" are passed as arguments. The second call to this procedure is within the for loop in the "playGame(min, max)" function, where "min" and "max" are used to calculate the "guess" variable.
b) The condition being tested by the first call to the "playGame(min, max)" procedure is whether the "guess" variable is equal to the randomly generated "number" variable. The condition being tested by the second call to the "playGame(min, max)" procedure is whether "guess" is greater than or less than "number".
c) The result of the first call to the "playGame(min, max)" procedure is the number of guesses it took to correctly guess the "number" variable. The result of the second call to the "playGame(min, max)" procedure is either updating the "max" or "min" variable based on whether the "guess" is greater than or less than the "number".
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According to Ref. 213/91, fire extinguishing equipment can be frozen True or False
Answers
False. Fire extinguishing equipment cannot be frozen according to Ref. 213/91.
According to Ref. 213/91, fire extinguishing equipment cannot be frozen. Fire extinguishers are essential safety devices designed to combat fires effectively. They contain pressurized agents that are specifically formulated to extinguish different types of fires. Freezing temperatures can significantly impair the functionality of fire extinguishers and render them ineffective in emergency situations.
When fire extinguishing equipment freezes, several issues can arise. First, the contents of the extinguisher may expand as they freeze, potentially leading to ruptures or leaks in the container. This can cause the extinguisher to malfunction or become hazardous when used. Second, freezing temperatures can affect the performance of the extinguishing agent itself. Certain agents, such as water-based solutions, can solidify or lose their effectiveness when exposed to extreme cold.
It is crucial to store fire extinguishers in suitable environments that are above freezing temperatures. This ensures that the equipment remains in optimal condition and is ready for immediate use during emergencies. Regular inspections and maintenance are also essential to identify any signs of damage or deterioration that may compromise the functionality of fire extinguishers.
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Which potential geologic hazard is NOT represented by a feature on this figure? Select one: A. an earthquake B. contaminated groundwater C. a volcano D. flood-prone areas E. a landslide
Answers
B: Contaminated groundwater is the potential geologic hazard that is NOT represented by a feature on the figure given.
A geologic hazard refers to an extreme natural event in the crust of the earth that poses a threat to life and property. For example, volcanic eruptions, tsunamis (tidal waves), earthquakes, groundwater contamination, and landslides. As per the context of the given picture, groundwater contamination is a potential geologic hazard that is not represented by a feature in the image attached.
Groundwater contamination is a phenomenon that occurs when man-made products such as road salts gasoline, oil, and chemicals get into the groundwater and make it to become unsafe and unfit for human use.
Image is attached showing potential geologic hazards such as earthquake, volcano, flood-prone areas, and landslide.
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gasoline has a comparatively high btu per galloon rating around?
Answers
Answer:
116,090 Btus
Explanation:
Which option identifies the section of the project charter represented in the following scenario?
For the past five years, students at New School have been in desperate need of a playground. The closest playground is a mile away, at Safe
Park. Our project is to design a playground for the students and to find funding in the community to support it.
O executive summary
O constraints
O project objectives
O project development cycle
Answers
Answer:
Executive Summary
Explanation:
It is Executive Summary because I used process of elimination. Constraints are set backs. Project objectives are the goals that you want to achieve. Project development cycle are basically the steps that will be used.
Using leftover paint colors is acceptable in a paint shop and will help cut down on waste.
True or false
Answers
Answer:
True
Explanation:
they put it through a process to be able to reuse it
Chapter 07, Problem 065 The drag characteristics of an airplane are to be determined by model tests in a wind tunnel operated at an absolute pressure of 1300 kPa. If the prototype is to cruise in standard air at 406 km/hr, and the corresponding speed of the model is not to differ by more than 29% from this (so that compressibility effects may be ignored), what range of length scales may be used if Reynolds number similarity is to be maintained? Assume the viscosity of air is unaffected by pressure, and the temperature of air in the tunnel is equal to the temperature of the air in which the airplane will fly.
Answers
Answer:
the range of length scales is ( 0.0602 - 0.1094 )
Explanation:
Given the data in the question;
\(P_{absolute\) = 1300 kPa
V\(_{prototype\) = 406 km/h
speed of model nit more than 29%
we know that Reynolds number Re = pVl/μ = constant
p\(_m\)V\(_m\)l\(_m\)/μ\(_m\) = pVl/μ
such that;
l\(_m\)/l = ( p/p\(_m\) )( V/V\(_m\) )( μ\(_m\)/μ ) ----- let this be equation 1
Now, for an idea gas; P = pRT { with constant temperature }
p / p = constant; p/p\(_m\) = p/p\(_m\)
assuming μ\(_m\) = μ\(_m\)
Therefore, the relation becomes;
l\(_m\)/l = ( p/p\(_m\) )( V/V\(_m\) )
from the given data;
l\(_m\)/l = ( 101/1300 )( V/V\(_m\) )
where our V\(_m\) = ( 1 ± 29% )V
so
l\(_m\)/l = ( 101/1300 )( V / ( 1 ± 29% )V )
l\(_m\)/l = ( 101/1300 )( 1 / ( 1 ± 0.29 ) )
Now, The minimum limit will be;
l\(_m\)/l = ( 101/1300 )( 1 / ( 1 + 0.29 ) )
= ( 101/1300 ) × ( 1 / 1.29 )
= 0.0602
The maximum limit will be;
l\(_m\)/l = ( 101/1300 )( 1 / ( 1 - 0.29 ) )
= ( 101/1300 ) × ( 1 / 0.71 )
= 0.1094
Therefore, the range of length scales is ( 0.0602 - 0.1094 )