The main regulation that should be quoted concerning smoking aboard or around Army aircraft is AR 95-1, which is the Army Aviation Flight Regulations.
This regulation is that smoking poses a significant safety risk to the aircraft and its passengers, as it increases the risk of fire and can compromise the air quality in the cabin. As a result, smoking is not allowed on any Army aircraft, including during pre-flight inspections or maintenance.
Army Regulation 600-63, specifically Chapter 7, outlines the policy on tobacco use in the Army. According to this regulation, smoking (including e-cigarettes and vaping) is strictly prohibited aboard Army aircraft or within 50 feet of Army aircraft. Additionally, smoking is not allowed in any area where it may create a hazard, such as fueling stations, munitions storage areas, or maintenance facilities.
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explain the differences between the short mix technique, the improved mix technique, and the intensive mix technique.
the differences between the short mix technique, the improved mix technique, and the intensive mix technique.
1. Short mix technique: This method involves a relatively short mixing time and is used when working with ingredients that are sensitive to over-mixing, such as in pastry doughs. The goal is to incorporate the ingredients just enough to achieve the desired texture without developing too much gluten or compromising the structure of the final product.
2. Improved mix technique: This method is a balance between the short mix and intensive mix techniques. It involves a moderate mixing time, allowing for more gluten development than the short mix technique but less than the intensive mix. This results in a product with a tender yet sturdy structure, making it suitable for a variety of baked goods like cakes and cookies.
3. Intensive mix technique: This method requires a longer mixing time to fully develop the gluten in the dough, resulting in a strong and elastic structure. It's commonly used in bread-making, where a well-developed gluten network is crucial for the dough's ability to rise and maintain its shape during baking.
In summary, the main differences between these techniques are the mixing times and the extent of gluten development, which ultimately impact the texture and structure of the final product.
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In summary, the main differences between the short mix, improved mix, and intensive mix techniques are the duration of mixing and the resulting gluten development, which affects the final bread quality.
The differences between the short mix technique, the improved mix technique, and the intensive mix technique are:
The difference between these three techniques lies in the mixing process, the time taken, and the final dough quality.
1. Short mix technique: This technique involves mixing the dough ingredients for a shorter duration, resulting in less developed gluten structure. It is often used for producing softer bread with a shorter shelf life. The steps include combining the ingredients, mixing until incorporated, and then proceeding with fermentation and baking.
2. Improved mix technique: This technique takes a bit longer than the short mix technique and focuses on developing the gluten structure more effectively. The steps include mixing the dough ingredients, resting the dough for a brief period, and then continuing to mix until the gluten is well developed. This technique results in a dough with better volume, texture, and shelf life compared to the short mix technique.
3. Intensive mix technique: This is the most time-consuming technique and involves mixing the dough ingredients for an extended period, resulting in a highly developed gluten structure. The steps include combining the ingredients, mixing until a very smooth and elastic dough is achieved, and then proceeding with fermentation and baking. The intensive mix technique produces bread with the highest volume, finest texture, and longest shelf life among the three methods.
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It was a mistake that i put in under 13 of age can you put it for 27
Answer:
ill try to help you :)
Explanation:
is a type of contract that deals with time spent by the labor employed and materials used for the project. A. Time and materials contract B. Unit price C. Cost reimbursable D. Firm fixed price
A time and materials contract is a type of contract that deals with time spent by the labor employed and materials used for the project. Option A is correct.
A time and materials contract is a type of contract commonly used in projects where the labor employed and materials used are key factors in determining the project cost. This type of contract allows for flexibility in terms of the time spent by labor and the materials utilized throughout the project. The client typically pays for the actual time spent by workers, often on an hourly basis, and reimburses the costs of the materials used.
In a time and materials contract, the final project cost can vary depending on factors such as the number of hours worked by labor, the rates charged for labor, and the actual cost of materials. This type of contract is commonly used when the scope and specifications of the project are not fully defined at the outset, or when there is a need for flexibility in adapting to changes or unforeseen circumstances.
Compared to other types of contracts, such as unit price (B), cost reimbursable (C), and firm fixed price (D), a time and materials contract provides more flexibility and allows for adjustments based on the actual time spent and materials used during the project.
Option A is correct.
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how much power (kw) would be required to drive the compressor if the total volumetric flow rate at the inlet is 450 m3/s?
The power required to drive the compressor for a volumetric flow rate of 450 m3/s is 13,500 kW.
Compressor power, also known as compression power, is the amount of power required to compress a gas or fluid. It is typically measured in watts (W) or horsepower (hp).
Compressor power is an important factor in determining the efficiency and performance of a compressor.
Calculate the mass flow rate (m):
m = ρ*V
m = 1.2 kg/m3 * 450 m3/s
m = 540 kg/s
2. Calculate the compressor power (P):
P = m*(h2 - h1)
P = 540 kg/s * (3.3 - 1.3) kJ/kg
P = 13,500 kW
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You installed a new 40 gallon water heater with a 54,000 BTUh burner. The underground water temperature coming into the house is 55F
How long will it take to heat the water in the tank to a normal setting of 120F.
Please show setup and explanation.
Answer:
For most uses you'll want your water heated to 120 F(49 C) In this example you'd need a demand water heater that produces a temperature rise and it will take about 2 hours
a steel compression member has a fixed supportat one end and a frictionless ball joint at the other end asshown. the total applied design load consists of a dead loadof 7 kips and an unspecified live load. this compressionmember is controlled by which type of buckling?
A steel compression member with a fixed support at one end and a frictionless ball joint at the other end, as described, is subject to a specific type of buckling known as Euler's critical buckling.
This buckling phenomenon occurs when the applied load reaches a critical value, causing the member to suddenly buckle and deform. In this case, the total applied design load consists of a 7 kip dead load and an unspecified live load. Since the fixed support provides full restraint, while the frictionless ball joint allows rotational movement, the member experiences one end fixed, and one end pinned boundary conditions. This configuration results in a lower buckling load capacity compared to a member with fixed supports at both ends, making it crucial to consider Euler's critical buckling when designing this compression member.
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A. Based on Nyquist’s Theorem, if 32 signal levels are used, what is the data rate that can be sent over a coaxial cable that has an analog bandwidth of 9.6 MHz?
B. According to Shannon’s Theorem, if a system has an average power level of 1400 units, an average noise level of 200 units, and a bandwidth of 50 MHz, what is the effective limit on channel capacity
(A.) A coaxial cable with a maximum analogue bandwidth of 9.6 MHz and 32 signal levels may transmit data at a maximum rate of 15.36 Mbps.
According to A. Nyquist's theorem, a channel's maximum data rate is equal to twice its bandwidth times log2 of the number of signal levels. The maximum data rate that may be sent over a coaxial cable is thus (2 x 9.6 MHz) x log2(32) = 307.2 Mbps if 32 signal levels are employed and the analogue bandwidth is 9.6 MHz.
According to B. Shannon's theorem, the channel capacity C, expressed in bits per second, is equal to the bandwidth B times the logarithm of the signal-to-noise ratio (SNR), where SNR is the ratio of the average power of the signal to the average power of the noise. Therefore, the effective limit on channel capacity for this system is 50 MHz x log2(1400/200+1) = 66.2 Mbps.
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SAFe Lean-Agile Principles (9 total)
The SAFe Lean-Agile principles form the foundation of the framework and guide organizations in adopting an agile mindset.
SAFe (Scaled Agile Framework) is a methodology for scaling agile practices to larger organizations. The SAFe Lean-Agile principles form the foundation of the framework and guide organizations in adopting an agile mindset. The nine SAFe Lean-Agile principles are:
1)Take an economic view: Understand and optimize the flow of value through the organization to drive economic outcomes.
2)Apply systems thinking: Consider the organization as a complex system of interdependent parts and optimize the whole, not just the individual components.
3)Assume variability and preserve options: Embrace uncertainty and variability by creating options for decision-making as late as possible.
4)Build incrementally with fast, integrated learning cycles: Build solutions incrementally through fast feedback loops to ensure that they meet the customer's needs.
5)Base milestones on objective evaluation of working systems: Define milestones based on working systems, not on intermediate artifacts or milestones.
6)Visualize and limit WIP (work in progress), reduce batch sizes, and manage queue lengths: Limit the amount of work in progress to reduce lead time and increase efficiency.
7)Apply cadence, synchronize with cross-domain planning: Establish a regular, predictable cadence for all work and align planning across domains to enable cross-functional collaboration.
8)Unlock the intrinsic motivation of knowledge workers: Foster a culture that supports autonomy, mastery, and purpose to motivate and engage knowledge workers.
9)Decentralize decision-making: Empower those closest to the work to make decisions and enable decentralized decision-making across the organization.
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seismic hazard zone report for the seal beach 7.5-minute quadrangle, los angeles and orange counties, california
This report summarizes the methods and information sources used to create the Seismic Hazard Zone Map for the Beverly Hills 7.5-minute Quadrangle in Los Angeles County, California.
What is a report?A report is a particular type of writing that is structured around succinctly identifying and examining problems, occurrences, or conclusions that have actually occurred physically, such as events that have taken place within an organization or conclusions from a research investigation.
These things might also have something to do with things or problems that have been mentioned in a body of literature. A report informs the reader about all pertinent issues in a straightforward, impartial manner. Having a predetermined structure, independent sections, and coming to objective conclusions are the three characteristics that define report writing at its most fundamental level.
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Identify the true statements about the relationship between the distillate and the sample mixture in a simple distillation.
a) The distillate may contain solid impurities, while the sample mixture will not.
b) The liquid in the distillate will be primarily composed of the liquid in the sample mixture that has the lowest boiling point.
c) The liquid in the distillate will be primarily composed of the liquid in the sample mixture that has the highest vapor pressure.
d) The liquid in the distillate will have passed through the condenser; that in the sample mixture will not.
Answer:
The answer is "Choice b,c, and d".
Explanation:
The distillation would be the separation phase of working liquids that boil close to each other. Whenever the formulation is long-term, a much more fraction of a compound collected will have a lower boiling point than it would otherwise be. In other phrases, it'll be pulverized with both the lower level, also with the boiling point. Its structure of both the diluted volatile component may therefore include another cell's contaminants.
Three loads are connected in parallel across a single-phase source voltage of 480 V (RMS). Load 1 absorbs 10 kW and 8 kVAR; Load 2 absorbs 5 kVA at 0.9 power factor leading; Load 3 absorbs 12 kW at 0.95 power factor leading. Calculate the equivalent impedance, Z, for the three parallel loads, for two cases: (a) Series combination of R and X, and (b) parallel combination of R and X. Problem
Answer:
a) ZT = [ 38.786 ∠-4.28° ] ohms
b) ZT = [ 8.673 ∠4.06° ] ohms
Explanation:
Given that;
Voltage V = 480V
three loads of 1) 10Kw, 8 kVAR
2) 5 kVA, 0.9 power factor lagging
3) 12kW, 0.95 pf leading
Now for load1
Active power P = V^2 / R
Resistance R1 = V^2 / P
= (480 * 480) / 10*1000 = 23.04 OHMS
Reactive power Q = 8kVAR
let x be reactance
Q = V^2 / x
8 * 1000 = (480 * 480) / x
x1 = j28.8 ohms (inductive)
Load 2
Active power = kVA * nf = 5 * 9 = 4.5 Kw
Reactive power = sqrt(S^2 - P^2)
= Sqrt (5^2 - 4.5^2)
= 2.179 kVAR
now Resistance R2 = V^2 / P2 = (480 * 480) / 4.5*10^3
= 51.2 ohms
Reactance X2 = V^2 / Q2 = (480 * 480) / 2.178*10^3
X2 = 105.75 ohms
x2 = -j105.75 ohms (capacitive)
Load 3
Active power = 12kW AND PF = 0.95
so
kVA rating = 12/0.95 = 12.63 kVA
reactive power Q3 = sqrt (12.63^2 - 12^2 )
= 3.94 kVAR
Resistance R3 = V^2/P3 = (480*480) / 12*10^3
= 19.2 ohms
Reactance x3 = V2 / Q3 = (480 * 480) / 3.94*10^3
x3 = 58.47 ohms
x3 = -j58.47 ohms (capacitive)
NOW
a)
series combination of R and X
1/ZT = [1/(R1 + jx1)] + [1/(R2-jx2)] + [1/(R3-jx3)]
we substitute
1/ZT = [1/(23.04 + j28.8)] + [1/(51.2 - j105.74)] + [1/(19.2-58.48)]
1/ZT = 0.02571 + j1.92688*10^-3
ZT = 38.67 -j2.897 (total impedance)
so ZT = [ 38.786 ∠-4.28° ] ohms
b)
parallel combination of R AND X
1/ZT = 1/R1 + 1/jx1 + 1/R2 + 1/(-jx2) + 1/R3 + 1/(-jX3)
1/ZT = 1/23.04 + 1/j28.8 + 1/51.2 + 1/(-j105.74) + 1/19.2 + 1/(-58.48)
1/ZT = 0.1150 - j0.008164
ZT = 8.65 +j0.6141
so ZT = [ 8.673 ∠4.06° ] ohms
What is a transition? A. An animation that happens on a single slide B. An outline format that uses roman numerals C. An image file imported to a title slide D. An effect that happens between slides Please select the best answer from the choices provided A B C D
Answer:
its c
Explanation:
what does a resister in an electrical circut do.
Resistors limit the amount of current flow in the circuit. For devices connected to the circuit, some currents can damage their integrity. Therefore, resistors are often used to protect devices connected to the circuit that follow it.
problem 02.104 - crate supported by cables a crate is supported by three cables as shown. determine the weight w of the crate, knowing that the tension in cable ab is 1382 lb.
Consequently, P minimal = 1 s tan s F g sec./ Gibbons and Schiller made an early observation that, because of the phenomenon of gravitational collapse and black hole development,
In general relativity, there is a maximum force or maximum tension limit
F max = c 4 / 4 G.
(c – the velocity of light, G – Newton gravitational constant).
Different dimensional weight formulas are used by shippers.
The instant the crate is about to start moving, it is in equilibrium. Let n represent the normal force operating on it and f represent the friction force.
Resolution of the vertical equation is as follows: F y = ma y produces n=F g + Psin.
Pcos = f is obtained horizontally by applying the formula F x = ma x.
However, Pcos s (F g + Psin) or P(cos s sin) s F g, i.e., f s s n
Divide by cos as follows: P(1 s tan) s F g sec
Consequently, P minimal = 1 s tan s F g sec.
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current attempt in progress a counterflow heat exchanger operates with the flow rates and temperatures as shown. the maximum amount of heat transfer would occur if the hot fluid were cooled to the cold fluid inlet temperature, and the cold fluid were heated to the hot fluid inlet temperature. the cold fluid were heated to the hot fluid inlet temperature. the hot fluid were cooled to the cold fluid inlet temperature. etextbook and media save for laterattempts: 0 of 2 usedsubmit answer
Although in practice this is very challenging to achieve, the cold fluid can exit the heat exchanger at a temperature higher than the temperature of the hot fluid outlet.
What are the types of heat transfer?There are numerous ways to transmit heat, including evaporative cooling, thermal radiation, convection, and conduction.
Heat transfer is any or all of a variety of processes that are thought to function as mechanisms to move energy and entropy from one place to another. Common names for the specific mechanisms include convection, heat radiation, and conduction (see thermal conduction).
Every time there is a temperature difference between states of matter, heat transfer takes place. Heat transfer only happens in the direction of decreasing temperature, or from a hot object to a cold item.
Conduction of heat through solids, convection of liquids and gases, and electromagnetic waves.
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In a production facility, 3-cm-thick large brass plates (k 5 110 W/m·K, r 5 8530 kg/m3, cp 5 380 J/kg·K, and a 5 33.9 3 1026 m2/s) that are initially at a uniform temperature of 25°C are heated by passing them through an oven maintained at 700°C. The plates remain in the oven for a period of 10 min. Taking the convection heat transfer coefficient to be h 5 80 W/m2·K, determine the surface temperature of the plates when they come out of the oven. Solve this problem using analytical one-term approximation method (not the Heisler charts). Can this problem be
Answer:
the surface temperature of the plates when they come out of the oven is approximately 445 °C
Explanation:
Given the data in the question;
thickness t = 3 cm = 0.03 m
so half of the thickness L = 0.015 m
thermal conductivity of brass k = 110 W/m°C
Density p = 8530 kg/m³
specific heat \(C_p\) = 380 J/kg°C
thermal diffusivity of brass ∝ = 33.9 × 10⁻⁶ m²/s
Temperature of oven T₀₀ = 700°C
initial temperature T\(_i\) = 25°C
time t = 10 min = 600 s
convection heat transfer coefficient h = 80 W/m².K
Since the plate is large compared to its thickness, the heat conduction is one dimensional. heat transfer coefficient and thermal properties are constant over the entire surface.
So, using analytical one-term approximation method, the Fourier number > 0.2.
now, we determine the Biot number for the process
we know that; Biot number Bi = hL / k
so we substitute
Bi = hL / k
Bi = (80 × 0.015) / 110 = 1.2 / 110 = 0.0109
Now, we get the constants λ₁ and A₁ corresponding to Biot Number ( 0.0109 )
The interpolation method used to find the
λ₁ = 0.1039 and A₁ = 1.0018
so
The Fourier number т = ∝t/L²
we substitute
Fourier number т = ( (33.9 × 10⁻⁶)(600) ) / (0.015)²
т = 0.02034 / 0.000225
т = 90.4
As we can see; 90.4 > 0.2
So, analytical one-term approximation can be used.
∴ Temperature at the surface will be;
θ(L,t)\(_{wall\) = (T(x,t) - T₀₀) / (T\(_i\) - T₀₀) ----- let this be equation
θ(L,t)\(_{wall\) = [A₁e^(-λ₁²т)]cos( λ₁L / L )
so we substitute
θ(L,t)\(_{wall\) = [1.0018e^(- (0.1039)²× 90.4 )] cos( 0.1039 × 0.015 / 0.015 )
θ(L,t)\(_{wall\) = [1.0018e^(- 0.975886984 )] cos( 0.1039 )
θ(L,t)\(_{wall\) = [1.0018 × 0.376857938] × 0.999998
θ(L,t)\(_{wall\) = 0.3775
so we substitute into equation 1
θ(L,t)\(_{wall\) = (T(L,t) - T₀₀) / (T\(_i\) - T₀₀)
0.3775 = ( T(L,t) - 700 ) / ( 25 - 700 )
0.3775 = ( T(L,t) - 700 ) / ( - 675 )
0.3775 × ( - 675 ) = ( T(L,t) - 700 )
- 254.8125 = T(L,t) - 700
T(L,t) = 700 - 254.8125
T(L,t) = 445.1875 °C ≈ 445 °C
Therefore, the surface temperature of the plates when they come out of the oven is approximately 445 °C
what is crop production definition
If a piece of machinery needs a replacement motor and will be damaged if the new motor rotates the wrong way. The test equipment needed to test the rotation direction of the new motor is a a. MEGGER b. phase angle voltmeter c. phase rotation meter d. digital multimeter
To test the rotation direction of the new motor, you would need a phase rotation meter (option c). This device helps ensure that the motor rotates in the correct direction, preventing any damage to the machinery.
The test equipment needed to test the rotation direction of the new motor is a phase rotation meter. This device is specifically designed to determine the rotation direction of a motor and is commonly used in industrial and commercial settings. Using this tool is essential when replacing a motor to ensure that it rotates in the correct direction and prevent damage to the machinery. A MEGGER is used to test the insulation of electrical wiring and equipment, a phase angle voltmeter measures the phase difference between two alternating currents, and a digital multimeter is a versatile tool used for measuring various electrical parameters.
To test the rotation direction of the new motor, you would need a phase rotation meter (option c). This device helps ensure that the motor rotates in the correct direction, preventing any damage to the machinery.
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If a piece of machinery requires a replacement motor, it is crucial to ensure that the new motor rotates in the correct direction. Failure to do so can cause damage to the machinery, and even pose a safety risk to those working with or around the equipment. To test the rotation direction of the new motor, a phase rotation meter is the appropriate test equipment to use.
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marks)
Question 2
Distinguish between the following pairs of terms:
i. Quadrant bearing and Azimuth
5
ii. Constant error and Human error
5
iii. Referencing and Detailing
E
iv.
Accuracy and Precision
V. Bar scale and Representative fraction scale
Answer:
referencing and detailing
what document is the primary reference document when making ethical decisions?
Housed at server farms, search engines use _____ to index data coming in from crawlers. a. cookies b. keywords c. spiders d. bots
Housed at server farms, search engines use keywords to index data coming in from crawlers. Hence option b is correct.
What is search engine?Search engine is defined as a piece of software that uses keywords or phrases to assist users in finding the content they're looking for online. The vast amount of material that is accessible on the internet is effectively filtered by search engines.
A search engine is a piece of software used to conduct online searches. They carry out methodical searches of the Internet for certain data that is specified in a text-based web search query.
Thus, housed at server farms, search engines use keywords to index data coming in from crawlers. Hence option b is correct.
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Select the four areas in which environmental engineers assist manufacturers with making decisions.
energy
pollution
money
time
development
creativity
Personally, I did the first 4, since pollution is a big factor, money and time can be helped with by making decision matrixes (usually done by the engineers to help the client) and energy, since that could also be decided using a decision matrix. Thank you for your help!
Answer:
In my opinion, Energy, Time, Money and Development
Answer:
Pollution, time, money, and energy.
Explanation:
Makine yüzeysel gemi ünvan değişikliği teknolojisi
I inferred you meant emerging technologies we see today.
Explanation:
1. 3D Printing
A three dimensional printing allows a digital model to be printed (constructed) into a physical object.
A box, an industrial design and many more could be printed within minutes.
2. AI voice recognition devices
Another trend in the tech world is the rise in artificial intelligence been used in voice recognition devices that not only recognize one's voice but also take commands from the user.
This technology allows one to listen to the internet, such as listening to music online.
The tech world is ever changing with new technology beyond one's consumption on the increase daily.
An equipment or process
powered by compressed air is
Answer:
An equipment or process powered by compressed air is a pneumatic tool.
A basic 3-input logic circuit has a LOW on one input and a HIGH on the other two inputs, and the output is LOW. What type of logic circuit is it
Answer:
any of AND, NOR, XOR
Explanation:
An AND gate will give a Low output for any input Low. The logic circuit could be an AND gate.
A NOR gate will give a Low output for any input High. The logic circuit could be a NOR gate.
An XOR gate will give a Low output for an even number of High inputs. The logic circuit could be an XOR gate.
The logic circuit could be any of ...
AND or NOR or XOR
__
Additional comment
What you consider a "basic" gate is not defined here. All of these are catalog items. If you consider only AND, OR, and NOT to be the basic gates, then your answer is AND.
A force transducer system is needed to measure a sinusoidal signal. Derived from the logarithmic amplitude decay test, the system has a damping ratio of 0. 6 and natural frequency of 1500 Hz. Estimate the frequency bandwidth of this system and plot M(f) as a function of f/fn.
What is the upper cut-off frequency?
The low pass and high pass filters make up the bandpass filter. High pass filters have a higher cutoff frequency, which is the initial cutoff frequency they use. Known as FC high, this cut-off frequency.
Explain about the cut-off frequency?A signal's cutoff point is determined by the cutoff frequency. There are only lowpass filters on simpler synthesisers. If a signal comprises frequencies between 20 and 4000 Hz and the cutoff frequency is set at 2500 Hz, frequencies above that frequency are filtered out.
For a high pass RL filter, follow these steps to determine the cutoff frequency: Inductance value (L) multiplied by two. Subtract the value from step 1 from the resistance (R). You've established what the high pass RL filter's cutoff frequency is.
The cutoff frequency is a critical element of any filtering circuit, including RC circuits. The filter's attenuation begins to rapidly grow at this point.
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A tank has a gauge pressure of 552 psi. The cover of an inspection port on the tank has a surface area of 18 square inches. What is the total force the cover is experiencing.
Answer:
44197.55 N
Explanation:
From the question,
Pressure of the pressure guage (P) = Total force experienced by the cover (F)/Area of the cover (A)
P = F/A................ Equation 1
make F the subeject of the equation
F = P×A............... Equation 2
Given: P = 552 psi = (552×6894.76) = 3805907.52 N/m², A = 18 square inches = (18×0.00064516) = 0.01161288 m²
Substitute these values into equation 2
F = ( 3805907.52×0.01161288)
F = 44197.55 N
The pressure less than atmospheric pressure is known as:
Suction pressure
Negative gauge pressure
Vacuum pressure
All of the above
Answer:
answer is option (d) all of the above
a cantilever beam 1.5m long has a square box cross section with the outer width and height being 100mm and a wall thickness of 8mm. the beam carries a uniform load of 6.5kN/m along the entire length and, in the same direction, a concentrated force of 4kN at the free end. (a) determine the max bending stress (b) determine the max transervse shear stress (c) determine the max shear stress in the beam
Answer:
a) 159.07 MPa
b) 10.45 MPa
c) 79.535 MPa
Explanation:
Given data :
length of cantilever beam = 1.5m
outer width and height = 100 mm
wall thickness = 8mm
uniform load carried by beam along entire length= 6.5 kN/m
concentrated force at free end = 4kN
first we determine these values :
Mmax = ( 6.5 *(1.5) * (1.5/2) + 4 * 1.5 ) = 13312.5 N.m
Vmax = ( 6.5 * (1.5) + 4 ) = 13750 N
A) determine max bending stress
б = \(\frac{MC}{I}\) = \(\frac{13312.5 ( 0.112)}{1/12(0.1^4-0.084^4)}\) = 159.07 MPa
B) Determine max transverse shear stress
attached below
ζ = 10.45 MPa
C) Determine max shear stress in the beam
This occurs at the top of the beam or at the centroidal axis
hence max stress in the beam = 159.07 / 2 = 79.535 MPa
attached below is the remaining solution
Estimate the heating energy requirements for a residential building using the degree-day method (a) in Denver, Colorado, and (b) in Little Rock, Arkansas. The overall heat loss coefficient is 400 Btu/h.oF and the furnace efficiency is 0.78.
Answer:
a) 600°F days
b) 103°F days
Explanation:
Given data :
overall heat loss coefficient = 400 Btu/h.oF
Furnace efficiency = 0.78
applying the degree- day method the heating energy requirement per day can be obtained by subtracting the average temperature for a particular day from the acceptable mid/balance point temperature
lets assume the mid/balance point temperature = 65°F
a) heating energy requirement in Denver Colorado
we will have 600°F days ; considering the the average temperature - balance point temperature
= 665 - 65 = 600°F
b) heating energy requirement in Little Rock Arkansas
we will have 103° days