explain the sphere gap method of measuring dc ac and impulse voltages
Answer:
The voltage to be measured is applied between the two spheres and the distance or spacing S between them gives a measure of the sparkover voltage. ... In the case of a.c. peak value and d.c. voltage measurements, the applied voltage is uniformly increased until sparkover occurs in the gap.
Assume that you have a wireless application you would like to design,build and sell as a commercial product.You have selected a target frequency in the UHF range.How would you decide what frequency to use and how would you get permission to use it ?
The frequency to use depends on the range and distance of signal transmission. There is government communication agency in charge of issuing license in order to get carrier frequency in which the application can work with.
UHF means Ultra - high frequencies which is mostly used in television broadcasting and mobile phone. Frequency range of the UHF is between 300MHz to 3GHz.
Assuming that you have a wireless application you would like to design, build and sell as a commercial product. And you have selected a target frequency in the UHF range.
Most wireless applications make use of radio wave and microwave depending on the range of distance in which the signal will travel.
The first thing to do is to determine the distance. Whether is short or long distance.Then get a license from the right government communication agency so that a carrier wave frequency will be allocated for you. Determine the side bands frequencies and Calculate the bandwidthBandwidth = 2[tex]F_{s}[/tex]
Where [tex]F_{s}[/tex] = sidebands frequency
Purchase all the necessary devices and gadgets like transmitter, oscillator, antenna e.t.cThe bullet points above highlighted how you can decide what frequency to use and how would you get permission to use it
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What's the purpose of a curtain drain?
Answer:
A French drain, or curtain drain, removes excess surface water so you won't need hip boots to cut the grass. A French drain, sometimes called a curtain drain, is a simple system with no moving parts -- gravity removes excess water from problem areas in your yard.
10. "PPE is the control of last resort." What does this mean?
Answer:
protect the employee once the hazard into contact with them.
As
is the rate (in time and distance) at which that force
is a twisting or turning force,
is produced
(
Select one:
O A. Torque; horsepower; torque
OB. Torque; horsepower; horsepower
O C. Horsepower; torque; horsepower
O D. Horsepower; torque; torque
Clear my choice
Answer:
C
Explanation:
As horsepower is the rate at which that force torque is a twisting or turning force, horsepower is produced. Hence option C is correct.
What is horsepower?Horsepower is defined as a unit used to describe the pace at which labor is done or to quantify power, frequently in relation to the output of engines or motors. Standardization and types of horsepower vary widely. A car's engine power is measured in horsepower (hp); the greater the number, the more power is transferred to the wheels and, in theory, the faster it will travel.
To put it simply, horsepower is your overall speed and power, whereas torque allows you to feel the sensation of acceleration when you put your foot down. When you realize that horsepower is derived from torque, this makes sense. Torque is a unit of rotational or twisting force. The power an engine produces is referred to as horsepower.
Thus, as horsepower is the rate at which that force torque is a twisting or turning force, horsepower is produced. Hence option C is correct.
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As the amplitude decreases in a wave the energy increasesTrue or false
Answer:
True
Explanation:
To summarise, waves carry energy. The amount of energy they carry is related to their frequency and their amplitude. The higher the frequency, the more energy, and the higher the amplitude, the more energy.
Find the distance of the line 3x + 4y + 5 = 0 from the point (2,-3).
Explanation:
The point on the line 3x + 4y = 5, which is equidistant from (1, 2) and (3, 4) is. Therefore, the point is (15, -10).
What is the purpose of the red-core yarns in the synthetic sling?
An immediate strength loss. This is why Sling Webbing has red core yarns to visually reveal damage and act as a basis for sling rejection.
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The purpose of the red-core yarns in the synthetic sling is to detect the strength loss and also to reveal the damage in the red corn yarns.
What is synthetic sling?Lifting slings constructed of synthetic materials like nylon or polyester are known as synthetic slings. These kinds of slings, which can also be called synthetic lifting straps or synthetic rigging slings, are thin, flexible, and protected by a jacket.
Sling Webbing features red core yarns to visibly indicate damage and serve as a reason for sling rejection because of this. Synthetic sling are flexible.
Therefore, it can be concluded that The red-core yarns in the synthetic sling are used to both reveal and detect strength loss in the red maize yarns. It also acts as the basis for sling rejection.
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Twisting force is known as:
Select one:
A. thrust.
B. horsepower.
C. torque.
D. energy.
pretty ako hjshjs ok.
Answer:
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Concrete is forced into all parts of its form through a process called?
Concrete is forced into all parts of its form through a process called hydration.
What is hydration of concrete?The concrete is known to be one that solidifies and also hardens via a chemical method known to be hydration.
This is when water reacts with the cement, and it is one that bonds the other components together and so Concrete is forced into all parts of its form through a process called hydration.
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pls help me right now!
9514 1404 393
Answer:
A. 15 cm²
B. 15 cm²
Explanation:
A. Original FormulaThe diagram shows the values of a, b, h. Put these in the original formula to find the area.
A = 0.5(a+b)h
A = 0.5(3 +7 cm)(3 cm) = 0.5(10 cm)(3 cm) = 15 cm²
__
B. Splitting MethodThe base of each triangle is half the difference between the two base lengths.
triangle base = (7 -3)/2 = 2 . . . cm
The area of a triangle is given by the formula ...
A = 0.5bh
A = 0.5(2 cm)(3 cm) = 3 cm²
The area of the central rectangle is given by ...
A = bh
A = (3 cm)(3 cm) = 9 cm²
Then the area of the trapezium is ...
A(triangle) +A(triangle) +A(rectangle) = A(trapezium)
(3 cm²) +(3 cm²) +(9 cm²) = A(trapezium) = 15 cm²
Twisting force is known as: A. thrust.
B. horsepower.
C. torque.
D. energy
. What is wrought iron? Discuss in brief its chemical composition, properties and applications.
Answer:
Wrought iron is an iron alloy with very low carbon content with respect to cast iron.
Explanation:
It is soft, ductile, magnetic, and has high elasticity and tensile strength. It can be heated and reheated and worked into various shapes.
Answer:
Wrought iron is an ferrous metal with a very low amount of carbon (less than 0.08%) compared to cast iron (2% or more). It is a semi-molten mass of iron with a fibrous sheath (up to 2% by weight), giving it a "grain" similar to wood grain, visible when bent or bent to the point of fracture. Wrought iron, malleable, easy to draw, corrosion resistant and easy to weld. Explanation:
All of the following are common strategies for finding ideas EXCEPT
creating analogies.
O brainstorming with others.
examining existing products.
sitting and walng for inspiration.
Answer:
D. sitting and waiting for inspiration.
Explanation: Seems less reliable then then others
How much electricity does a city with 1000 people require?
The average person needs 893 kWh per month.
So 1,000 people would need 893,000 kWh per month.
List the crops that can be used dibbler .
Answer:
A dibber or dibble or dibbler
Explanation:
A dibber or dibble or dibbler is a pointed wooden stick for making holes in the ground so that seeds, seedlings or small bulbs can be planted. Dibbers come in a variety of designs including the straight dibber, T-handled dibber, trowel dibber, and L-shaped dibber
Identify and explain the importance of Security Information and Event
Management (SIEM) .You are hire as a Information Security officer in Evincible
Securities .And you are going to move organization towards (SIEM) .
Security Information and events management describes an integration of Information and event management in the aspect of organizational security.
With Security Information and Event Management, organizations can effectively manage security logs of events and information using collected and filtered data in other to identify potential risk to networks and systems in real time. Gathered information could be used to create threat alerts and assign different level of priority based on specified rules and conditions.Hence, SIEM could leverage the capability of machine learning models and generated data in other build a robust security system.
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Technician A states that about 33% of the heat energy created is wasted by being dumped straight out
of the exhaust to the atmosphere. Technician B states that 33% is wasted by internal friction and from
radiating off hot engine components straight to the atmosphere. Who is correct?
Select one:
A. Technician A
B. Technician B
C. Both A and B
D. Neither Anor B
Heat energy is the known to be a product of the movement of tiny particles called atoms, molecules or ions. The true statement is by Technician A.
Internal combustion engine is dependent on the heat of combustion so as to make torque to move the vehicle and power the system.
A lot of heat made during combustion is not often used productively and therefore need to be removed to avoid overheating of the engine.
The heat energy that is not used for is wasted in three ways: They are:
About 33% is wasted by being dumped straight out of the exhaust to the atmosphere. About 33% is wasted by the cooling system, which prevents overheating of the engine components. About 5% is wasted by internal friction and from radiating off of hot engine components straight to the atmosphere.Learn more from
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Reaction of steam and propane produce hydrogen gas.
C3H8(g) + 3 H2O(v) -> 3 CO(g) + 7 H2(g)
Draw a block diagram and process flow diagram including flow table of this process.
Answer:i think it is a problem only Joe biden can solve i like your cut g
Explanation:
The following problem refers to triangle ABC, find all missing parts. Round degrees to 1 decimal places and
sides to the nearest whole number.
A = 36.5°C = 67.5°, c = 224 inches
A=
В.
C
O
O
490 do
a =
inches
inches
inches
C-
Answer:
A =41 .....
......
......
....C=21
An egg with an initial temperature 25C was place into a boiling water for 15 minutes. Heat from the boiling water enters the egg and changes its temperature gradually over time and space. Using the 2 dimensional finite element method, prove that the temperature of the egg varies from the shell to the center of the egg. You may need to develop your own nodes before start deriving the equations.
It is proved from the below that the temperature of the egg varies from the shell to the center of the egg.
Using the 2-dimensional finite element method, we will need to find the Biot number of the system by using the formula:
[tex]\mathbf{Bi = \dfrac{h_c r_o}{k} }[/tex]
According to the Heisler chart, the curves in the graph represent a range of values for the inverse of the Biot number,
where;
[tex]\mathbf{Bi = \dfrac{h_c r_o}{k} }[/tex]
here;
k = the material's thermal conductivity h = the heat transfer coefficient.By developing nodes based on assumptions;
[tex]\mathbf{Bi = \dfrac{1700 \times 0.025}{0.682} }[/tex]
Bi = 62.32
The inverse of Biot number is:
[tex]\mathbf{=\dfrac{1}{Bi}}[/tex]
[tex]\mathbf{=\dfrac{1}{62.32}}[/tex]
= 0.016
Similarly, the Fourier number [tex]\mathbf{F_o}}[/tex] is calculated by using the expression;
[tex]\mathbf{F_o = \dfrac{\alpha t }{r_o^2} }[/tex]
[tex]\mathbf{F_o = \dfrac{k t }{\rho c_pr_o^2} }[/tex]
where;
time (t) = 15 mins = (15 × 60) sec[tex]\mathbf{F_o = \dfrac{0.682 \times 15 \times 60 }{958.4 \times 4211 \times 0.025^2} }[/tex]
[tex]\mathbf{F_o = 0.243}[/tex]
Using the 2-dimensional finite element method, the temperature ratio is:
[tex]\mathbf{\dfrac{T(0,t) -T_{\infty}}{T_o -T_{\infty}} = 0.1 }[/tex]
T(0,t) = 100 + 0.1(4-100)
T(0,t) = 100 + 0.1(-96)
T(0,t) = 100 - 9.6
T(0, t) = 90.4° C
Therefore, we can conclude that it is proved that the temperature of the egg varies from the shell to the center of the egg.
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Las dos torres que sostienen un puente colgante tienen una separación de 240m y una altura de 110m a partir de la carretera, si el cable tensor más corto mide 10m, ¿cuál es altura de un cable que se encuentra a 100m de distancia del centro?
La altura es de 169.4 metros.
Dado que las dos torres que sostienen un puente colgante tienen una separación de 240m y una altura de 110m a partir de la carretera, si el cable tensor más corto mide 10m, para determinar cuál es altura de un cable que se encuentra a 100m de distancia del centro se debe realizar los siguientes cálculos, aplicando la ecuación parabólica:
(240)² = 4P x (110-10)57600 = 4P x 10057600 = 400P57600/400 = P144 = P 200 x 200 = 4 x 144 x (Altura - 100) 40000 = 576Altura - 57600 40000 + 57600 / 576 = Altura 169.4 metros = Altura
Por lo tanto, la altura es de 169.4 metros.
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Write an
algorithm and draw a flowchart to convert the length in feet to
centimeter
Answer:
blah blah blah sh ut up read learn
Where is Gotland Island?
O The Dead Sea
O The Caspian Sea
O The Baltic Sea
O The Mediterranean Sea
For the three-point bending test set up in this lab, what would be the shear force and moment distributions along the beam axis
Answer: So to calculate the flexural strength (σ), multiply the force by the length of the sample, and then multiply this by three. Then multiply the depth of the sample by itself (i.e., square it), multiply the result by the width of the sample and then multiply this by two
Explanation:
Warning danger ahead sign
Answer: okiiiii
Explanation:
what is the marking menu fusion360
The 'marking menu' opened up ways for me to access the most commonly used commands and tools with a flick of the wrist. What's more impressive is that its dependent on workspace, so you can use it in all parts of the design!
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A positively charged electric has a charge of 2 Coulombs. If 12.5x10^18 free electrons are added to it, what will be the net charge on the said dielectric?
The net charge on the said dielectric is 0
1C = 6.25 * 10¹⁸ electrons; hence:
-12.5x10¹⁸ free electrons = (-12.5x10¹⁸ free electrons * (1C/ 6.25 * 10¹⁸ electrons))
-12.5x10¹⁸ free electrons = -2 C
A positively charged electric has a charge of 2 Coulombs, hence:
Q₁ = 2C
12.5x10¹⁸ free electrons are added to it, hence:
Q₂ = -2C
[tex]Net\ charge(Q_{net})=Q_1+Q_2=2C+(-2C)=0[/tex]
Hence the net charge on the said dielectric is 0
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Determine the location of the maximum bending moment. In the formula, w is the rate of load increase in lb ft and l is the length (in ft) of the beam. calculus
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