The cannot calculate the exact frequency at which the phase is -45 degrees without additional information about the transfer function.
Name three major types of muscle tissue.To find the frequency at which the phase of the transfer function is -45 degrees, we need to convert the angular frequency wo to Hertz.
wo = 660 wo rad/secTo convert from radians per second to Hertz, we divide by 2π, since 2π radians is equal to one cycle:
Frequency in Hertz = wo / (2π)Substituting the given value:Frequency in Hertz = 660 wo / (2π)Now we can calculate the frequency in Hertz at which the phase of the transfer function is -45 degrees.
However, the transfer function H(W) = 1+j2 does not provide enough information to determine the phase angle at a specific frequency.
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When a system is in deep vacuum;
a. never add refrigerant to the system.
b. never use a micron gauge.
c. never energize the compressor.
d. never energize system fans and blowers.
When a system is in a deep vacuum, never energize the compressor. The correct option is a.
What is a deep vacuum?A deep vacuum is a system in which the boiling point of liquid lowers down and the temperature lowers for outgassing. They help in freeze drying, metallurgy, distillation, etc. It used 500 or less than 500 microns for deep vacuum.
Vacuum tubes, such as cathode ray tubes, and electron microscopes are made possible by the electronic resistivity of the vacuum. Torr is the unit used to measure vacuums.
Thus, the correct option is a. never energize the compressor.
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Write a class having two private variables and one-member function which will return the area of the rectangle.
Using the knowledge in computational language in C++ it is possible to write the code being write a class having two private variables
Writting the code in C++:#include <iostream>
using namespace std;
class Rectangle { /*create a class named Rectangle*/
private:
float l,b; /*this class has two private variables l and b*/
public:
float getArea(float l, float b) /*this class has one member-function getArea which returns the area of the rectangle*/
{
return l*b; /*return the area of the rectangle*/
}
};
int main () { /*the main function to check the working of our Rectangle class*/
float l,b;
Rectangle r1; /*create an object r1 of Rectangle class*/
cout<<"Enter the length of the rectangle: ";
cin>>l; /*input the length of the rectangle from the user*/
cout<<"Enter the breadth of the rectangle: ";
cin>>b; /*input the breadth of the rectangle from the user*/
cout <<"Area of the rectangle is: "<< r1.getArea(l,b)<<" square units."; /*find the area of the rectangle using the member function of the class*/
return 0;
}
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A cantilever beam has a length L and is loaded by a triangularly distributed load of maximum intensity q0 at B. (Solve this problem by integration the differential equations of the deflection curve. The beam has constant flexural rigidity E I.)
The Deflection due to Triangular load is 11q₀L⁴/120EI
What is deflection due to triangular load?The deflection due to the triangular load is usually given as:
σ₁ = 11q₀L⁴/120EI
Deflection due to reaction (R[tex]_{b}[/tex])(σ₂) =
R[tex]_{b}[/tex]L³/3EI
⇒ σ₁ = σ₂⇒ 11q₀L⁴/120EI
= R[tex]_{b}[/tex]L/3EI= R[tex]_{b}[/tex]
= 11q₀L/40
What is the significance of deflection in a beam?In terms of structural engineering, a beam or node moving from its initial location is referred to as deflection.
It occurs as a result of the loads and forces that are placed on the body.
Deflection, also known as displacement, can result from the weight of the body structure itself or from externally applied stresses.
What is the relevance of deflection due to triangular load?A structure's deflection must be taken into account during design, and the consequences of not doing so can be disastrous.
Deflections may be caused by various loads. These include, among others,
ground pressureearthquakeswind loadsshear loadspoint loadsevenly distributed loads and uniformly distributed loads.Learn more about similar solutions at;
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What dimensions are used when measuring the area of a building
Answer:According to NEC 220.12,
“the floor area shall be calculated from outside dimensions of the buildings, dwelling unit, or other area involved.
The area should not include open porches, garages or unused or unfinished spaces not adaptable for future use”.
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Explanati
Someone claims that the volume flow rate in a circular pipe with laminar flow can be determined by measuring the velocity at the centerline in the fully developed region, multiplying it by the cross-sectional area, and dividing the result by 2. Do you agree
Metal wireways are sheet metal troughs with _____________ for housing and protecting electrical conductors and cable.
Answer:
Metal wireways are sheet metal "U"s with removable housing for protecting electrical equipment, wires, and cables.
Explanation:
These are especially used to run wire in manufacturing environments.
g wastewater is to be treated with aerated lagoons. You are considering two different design options: A) A single lagoon with a surface area of 180 m2 B) Two lagoons in series with surface areas of 90 m2 each. All ponds have a depth of 2 m. The flow rate of wastewater is 5000 L/day. The waste contains 600 mg/L of organic material that is readily biodegradable with a first-order rate constant of 0.35 day-1. What final effluent concentration of organic material would you expect for each design
When you approach an uncontrolled intersection, you should treat it as though which sign is present?
Answer: A yield sign
Explanation:
If a dielectric material, such as teflon®, is placed between the plates of a parallel-plate capacitor without altering the structure of the capacitor, how is the capacitance affected?.
The capacitance is affected is that the capacitance increases because of the insertion of Teflon.
What is capacitance?A capacitance is known to be a form of a device that is said to be used to save some measures of charges in any kind of an electrical circuit.
Note that the capacitor functions on the principle that the capacitance of a conductor is said to go up if an earthed conductor is taken close to it.
Therefore, The capacitance is affected is that the capacitance increases because of the insertion of Teflon and so the teflon tends to widen the capacitance.
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To put out a class D metal fire, you must _______ the fire.
To put out a class D metal fire, you must smother the fire and eliminate the oxygen element in the fire.
What is a Class D fire?A class D fire is a type of fire that cannot be extinguished by water. This is because adding water to it reacts with other elements in the fire intensifying the fire even more.
Smothering in this context involves adding a solution like carbon dioxide (CO2) into the fire, this results in a reduction of oxygen in the atmosphere surrounding the class D fire.
By so doing, smothering the fire eliminates the oxygen element in the fire, thereby extinguishing the fire.
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A handsfree device may be used if it can be activated or deactivate with a?
A handsfree device may be used if it can be activated or deactivate with a cellphone.
What is hands-free?Handsfree is a device which when connected to a cell device can be used in listening to audio, video and messages.
A driver can also activate or deactivate with a swipe when connect to the vehicle audio device.
Therefore,
A handsfree device may be used if it can be activated or deactivate with a cellphone.
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An isolation transformer whose main purpose is to reduce voltage spikes will have a turns ratio of?
Answer:
An isolation transformer whose main purpose is to reduce voltage spikes will have a turns ratio of 1 to 1.
This is due to the windings input and output having the same waveform and amplitude.
A flexible hydraulic hose identified as mil-h-8788 will have a stripe running the length of the hose. This stripe?
Answer: This a system of equations question. What you will do is make an equation comparing the two lengths then make another one as the sum of the lengths. H1 will stand for hose 1 and H2 will stand for hose 2.
so our first equation is H1=4*(H2)-20. We know this because H1 is 20 less than 4 times H2.
After landing equipment, a hydraulic flexible hose has been removing the everlasting form of a hose because of stress is called a save you high strain from extruding the seal among the transferring and desk-bound parts.
What are Hydraulics?Hydraulics is a mechanical characteristic that operates via the pressure of liquid pressure. In hydraulics-based totally structures, mechanical motion is produced with the aid of contained, pumped liquid, normally via hydraulic cylinders transferring pistons.
Hydraulic structures paintings through using pressurized fluid to energy an engine. these hydraulic presses position pressure on a small amount of fluid for you to generate a massive amount of power. Hydraulic structures are capable of shifting heavier loads in addition to offering greater force than mechanical, electrical, or pneumatic systems. The fluid energy gadget approach can without difficulty address a huge weight variety without having to use gears, pulleys, or heavy leavers.
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Manual transmission has a driver-operated clutch and a movable gear selector. In manual transmission, the gears are engaged .....................
In the case above about manual transmission, the gears are engaged manually.
What is manual transmission?The Definition of the term manual transmission is regarded as a kind of a system where there is the changing gears in a manual way.
Hence, In the case above about manual transmission, the gears are engaged manually is correct.
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Technician A says that a voltage drop on the ground side of a bulb won’t affect its brightness because the electricity has already been used up. Technician B says that a voltage drop is one way to determine if there is unwanted resistance in a circuit. Who is correct?
Answer:
Technician B
Explanation:
For a given circuit current, the voltage drop is an indication of the resistance in the circuit.
If the voltage drop on the ground side of a bulb is unexpectedly high, it means the circuit resistance is unexpectedly high. Technician B is correct.
A______solid-state relay is an electronic device that performs the same function as an electromechanical relay.
Answer: Non-programmable
Explanation:
A non-programmable solid-state relay is an electronic device that performs the same function as an electromechanical relay.
What is a solid-state relay?An SSR is an electrical switching device that turns on or off when an external voltage (AC or DC) is applied across its control terminals. They perform the same job as an electromechanical relay, but because they include no moving parts, they have a longer operational lifetime.
Solid-state relays are the semiconductor analogs of electromechanical relays and can thus control electrical loads. When energized, the solid-state relay is a fairly complex device with a simple purpose: to activate a single output load.
Therefore, a non-programmable solid-state relay is a type of electrical device that functions similarly to an electromechanical relay.
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Determine the carburizing time necessary to achieve a carbon concentration of 0.30 wt.% at a position of 4 mm into an iron-carbon alloy that initially contains 0.10 wt.% C. The surface concentration is to be maintained at 0.90 wt.% C, and the treatment is to be conducted at C. Use the diffusion data for -Fe in Table 5.2
The carburizing time necessary to achieve a carbon concentration is 31.35 hours
How to find the Carburizing Time?To determine the carburizing time necessary to achieve the given carbon concentration, we will use the equation:
(Cs - Cx)/(Cs - C0) = ERF(x/2√Dt)
where;
Cs is Concentration of carbon at surface = 0.90
Cx is Concentration of carbon at distance x = 0.30
Distance x = 4 mm = 0.004 m
C0 is Initial concentration of carbon = 0.10
ERF() = Error function at the given value
D = Diffusion of Carbon into steel
t = Time necessary to achieve given carbon concentration ,
Thus, plugging in the relevant values gives;
(Cs - Cx)/(Cs - C0) = (0.9 - 0.3)/(0.9 - 0.1)
= 0.6/0.8 = 0.75
now, ERF(z) = 0.75 and as such using ERF table, we can say that;
Z = 0.814. Thus;
(x/2√Dt) = 0.81
Using the table of diffusion data, we have;
At a temperature of (1100°C) or 1373 K, we have;
D = 5.35 × 10⁻¹¹ m²/sec.
Calculating the carbonizing time by using the equation z = (x/2√Dt);
where;
t is carbonizing time
Thus;
0.814 = (0.004/(2 × √5.35 × 10⁻¹¹ × √t))
0.814 = 0.004 /(1.4628 × 10⁻⁵ × √t)
0.814 × 1.4628 × 10⁻⁵ × √t = 0.004
1.19072 × 10⁻⁵ × √t = 0.004
√t = 0.004/(1.19072 × 10⁻⁵)
√t = 335.93
t = 112848.96 seconds
Converting to hours gives;
t = 112848.96/3600
t = 31.35 hours
Therefore, the carburizing time necessary to achieve a carbon concentration is 31.35 hours
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Water enters a vertical jet with low velocity and a pressure of 350 kPa. What is the maximum height that the water can rise above the jet
The maximum height that the water can rise above the jet is: 35 meters.
Maximum height that the water can rise above the jetGiven:
P = 350 kPa = 350000 Pa
We would use pressure(p) formula to determine the maximum height that the water can rises above the jet by solving for h (height).
Using this formula
Pressure(P) = P₀ + ρgh
Where;
P₀ represent Pressure at the fluid's surface
ρ represent Density of the fluid = 1000 kg/m³
g represent acceleration due to gravity = 10 m/s².
h represent height
Solving for h (height)
350000 = 0 + (1000 × 10 ×h)
350000 = 10000h
Divide both side by 10000h
h = 350000/10000
h = 35 meters
Therefore the maximum height that the water can rise above the jet is: 35 meters.
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True or false? if i were to hook up an ac voltage source to a resistor, the voltage drop across the resistor would be in phase with the current in the circuit.
if a person were to hook up an ac voltage source to a resistor, the voltage drop across the resistor would be in phase with the current in the circuit and this is a true statement.
What is the role of a resistor in an AC circuit?A resistor is known to be a form of a passive tool that does not create or consume power.
Note that it often changes electrical energy into heat and as such, if a person were to hook up an ac voltage source to a resistor, the voltage drop across the resistor would be in phase with the current in the circuit and this is a true statement.
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Water enters a vertical jet with low velocity and a pressure of 350 kPa. What is the maximum height that the water can rise above the jet
The maximum height that the water can rise above the jet is; 35 m
How to find the height pressure of water?
The formula for pressure here is;
P = P₀ + ρgh
where;
P₀ is the pressure at the fluid's surface.
ρ is the density of the fluid. (density of water = 1000 kg/m³)
g is the acceleration due to gravity = 10 m/s².
h is height of rise of fluid
Now, the pressure at water surface is zero because the pressure the atmosphere exerts on the water is equal to the pressure the water exerts on the atmosphere. Thus, P₀ = 0 Pa
We are given P = 350 kPa = 350000 Pa. Thus;
350000 = 0 + (1000 * 10 * h)
350000 = 10000h
h = 350000/10000
h = 35 meters
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When converting liquid level units to sensor output signal units, you should first convert the liquid level units to _____ units
When converting liquid-level units to sensor output signal units, you should first convert the liquid-level units to engineering units.
The engineering units are the actual physical measurements of the liquid level, such as meters, feet, inches, or any other relevant unit of length or depth.
Once the liquid level is expressed in engineering units, you can then proceed with the conversion to the sensor output signal units, which typically involves scaling the engineering units to match the range and sensitivity of the sensor's output.
This ensures that the sensor provides an accurate and meaningful representation of the liquid level, making it easier to interpret and use the data for various applications.
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Modern aircraft are designed in a way that, when all seats are occupied, the baggage compartment is full, and all fuel tanks are full, the aircraft is:
Modern aircraft are designed in a way that, when all seats are occupied and baggage is full, and all fuel tanks are full, the aircraft is overloaded.
What is aircraft storage?Aircraft storage refers to all storage systems in an aircraft for human transportation and also to transport products among countries.
The aircraft storage system is well calculated to work is a maximum capacity in commercial fly lines.
In conclusion, modern aircraft are designed in a way that, when all seats are occupied and baggage is full, and all fuel tanks are full, the aircraft is overloaded.
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Structural Safety Assessment and Traffic Control Strategies of Widened Highway Bridges under Maintenance Works Requiring Partial Lane Closure
Structural Safety Assessment and Traffic Control Strategies of Widened Highway Bridges under Maintenance Works Requiring Partial Lane Closure journal is based on the way and techniques that can be used in maintaining the Safety on the road as well as the Assessment of Traffic Control.
What are the techniques in controlling the traffic?
There are Devices that are typically used in the traffic control, and this can include speed bumps as well as the barricades to block streets.
Others techniques are:
turn prohibitions stop signs raised pavement markers.Traffic restraint can also entails the includes programs that can foster bicycle as well as the pedestrian travel.
The rapid structural safety assessment help in inspecting and evaluating the concrete structure as well in determining the damaged structure if it is unsafe for personnel within the building .
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A line has a slope of 2/5 and contains the point (-10, -6). What is the y-intercept (b) of the line?
Answer:
y-intercept = -2
Explanation:
The general structure of an equation in slope-intercept form is:
y = mx + b
In this formula, "m" represents the slope and "b" represents the y-intercept. Remember how the Point (-10, -6) contains one "x" value and one "y" value. Using these values in addition to the slope, you can plug them into the equation to find the y-intercept.
x = -10 (from point)
y = -6 (from point)
m = 2/5
y = mx + b <----- Slope-intercept form
y = (2/5) x + b <----- Plug 2/5 into "m"
-6 = (2/5)(-10) + b <----- Plug in "x" and "y" values from point
-6 = -4 + b <----- Multiply 2/5 and -10
-2 = b <----- Add 4 to both sides
Therefore, the value of the y-intercept is b = -2. The complete equation of the line is:
y = (2/5)x - 2
Soru No 3
If you
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Vivian's Violins has sales of $326,000, contribution margin of $184,000 and fixed costs total $85,000. Vivian's Violins net operating income is Blank______. Multiple choice question. $241,000 $57,000 $99,000
Based on the calculations, Vivian's Violins net operating income is equal to: D. $99,000.
How to calculate net operating income?Mathematically, the net operating income of an individual or business firm can be calculated by using this formula:
Net operating income = Contribution margin - Total fixed costs
Given the following data:
Sales = $326,000Contribution margin = $184,000Fixed costs total $85,000Substituting the given parameters into the formula, we have;
Net operating income = $184,000 - $85,000
Net operating income = $99,000.
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what is the basic concept of the finite element method.
Answer:
The FEM is a general numerical method for solving partial differential equations in two or three space variables (i.e., some boundary value problems). To solve a problem, the FEM subdivides a large system into smaller, simpler parts that are called finite elements.
Which is not one of the primary characteristic of unit testing:
Answer:
Unit testing is a software development process in which the smallest testable parts of an application, called units, are individually and independently scrutinized for proper operation. This testing methodology is done during the development process by the software developers and sometimes QA staff. The main objective of unit testing is to isolate written code to test and determine if it works as intended.
Unit testing is an important step in the development process, because if done correctly, it can help detect early flaws in code which may be more difficult to find in later testing stages.
Unit testing is a component of test-driven development (TDD), a pragmatic methodology that takes a meticulous approach to building a product by means of continual testing and revision. This testing method is also the first level of software testing, which is performed before other testing methods such as integration testing. Unit tests are typically isolated to ensure a unit does not rely on any external code or functions. Testing can be done manually but is often automated. It might be helpful
True or false? if i were to hook up an ac voltage source to a resistor, the voltage drop across the resistor would be in phase with the current in the circuit.
Answer: True
Explanation:
Determine the carburizing time necessary to achieve a carbon concentration of 0.30 wt.% at a position of 4 mm into an iron-carbon alloy that initially contains 0.10 wt.% C. The surface concentration is to be maintained at 0.90 wt.% C, and the treatment is to be conducted at C. Use the diffusion data for -Fe in Table 5.2
Answer:
the carburizing time necessary to achieve a carbon concentration is 31.657 hours
Explanation:
Given the data in the question;
To determine the carburizing time necessary to achieve the given carbon concentration, we will be using the following equation:
(Cs - Cx) / (Cs - C0) = ERF( x / 2√Dt)
where Cs is Concentration of carbon at surface = 0.90
Cx is Concentration of carbon at distance x = 0.30 ; x in this case is 4 mm = ( 0.004 m )
C0 is Initial concentration of carbon = 0.10
ERF() = Error function at the given value
D = Diffusion of Carbon into steel
t = Time necessary to achieve given carbon concentration ,
so
(Cs - Cx) / (Cs - C0) = (0.9 - 0.3) / (0.9 - 0.1)
= 0.6 / 0.8
= 0.75
now, ERF(z) = 0.75; using ERF table, we can say;
Z ~ 0.81; which means ( x / 2√Dt) = 0.81
Now, Using the table of diffusion data
D = 5.35 × 10⁻¹¹ m²/sec at (1100°C) or 1373 K
now we calculate the carbonizing time by using the following equation;
z = (x/2√Dt)
t is carbonizing time
so we we substitute in our values
0.81 = ( 0.004 / 2 × √5.35 × 10⁻¹¹ × √t)
0.81 = 0.004 / 1.4628 × 10⁻⁵ × √t
0.81 × 1.4628 × 10⁻⁵ × √t = 0.004
1.184868 × 10⁻⁵ × √t = 0.004
√t = 0.004 / 1.184868 × 10⁻⁵
√t = 337.5903
t = ( 337.5903)²
t = 113967.21 seconds
we convert to hours
t = 113967.21 / 3600
t = 31.657 hours
Therefore, the carburizing time necessary to achieve a carbon concentration is 31.657 hours