Question 10 In a capacitive load which is supplied by Vs = 5200 V, the current phasor will lead the voltage phasor lags the voltage phasor in phase with the voltage phasor lags the voltage phasor by 90°

It is estimated that a spherical nickel powder, likely measuring 8 micrometers in size, will take roughly 15 minutes to settle in water at the top of a 100 mm sedimentation column.

The principle of Stokes law is utilized in this, which explains that the speed at which a round particle sinks in a thick fluid is linked to both the size of the particle's radius and the contrast in densities of the particle and the fluid, while being inversely related to the fluid's viscosity.

The nickel powder has a density of \(8. 90 g/cm^3\) and particle radius of 8 micrometers, whereas water's density and viscosity are 1. 00 g/cm^3 and 0. 001 poise respectively in this scenario.

By inserting these numerical values into the Stokes equation, we can determine that the nickel powder has a settling rate of roughly 0. 0002 centimeters per second.

One can estimate the setting time by taking the column's height and dividing it by the settling velocity, resulting in roughly 15 minutes.

Kindly consider that the specified duration is only a rough approximation, and the factual solidifying period is prone to fluctuations based on various factors, such as the density of the nickel powder, the warmth of the water, and the existence of other contaminants or particles in the water.

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The Predator (UAV) developed by General Atomics Aeronautical Systems. It was first introduced in the mid-1990s and has since become one of the most widely used UAVs by the United States military.

To calculate the following parameters, we can use the provided data and some basic formulas:

1) Calculate the maximum lift that the Predator UAV can generate:

The maximum lift (L) can be calculated using the formula: L = 1/2 * rho * V^2 * S * CL, where rho is the air density, V is the velocity, S is the wing area, and CL is the lift coefficient. Assuming a cruising altitude of 10,000 ft (3048 m) and a velocity of 100 knots (51.44 m/s), we can calculate the air density (rho) using the standard atmosphere table, which is 0.621 kg/m^3. Using these values and assuming a lift coefficient of 1.2 (based on typical values for a Predator UAV), we can calculate the maximum lift as:

L = 1/2 * 0.621 kg/m^3 * (51.44 m/s)^2 * 11.45 m^2 * 1.2 = 40270.3 N

2) Calculate the maximum thrust generated by the engine:

The maximum thrust can be calculated using the formula: T = P * prop_eff / V, where P is the power output of the engine, prop_eff is the propeller efficiency, and V is the air velocity at the propeller. Assuming a propeller diameter of 1.82 m and a pitch of 1.5 m, we can calculate the air velocity at the propeller as:

V = (2 * 51.44 m/s) / (1 + sqrt(1 - (0.75 * 1.5 / 0.91)^2)) = 66.63 m/s

Using these values and assuming a power output of 63.4 kW (85 horsepower), a propeller efficiency of 0.9, we can calculate the maximum thrust as:

T = 63.4 kW * 0.9 / 66.63 m/s = 0.855 kN

3) Calculate the maximum range of the Predator UAV:

The maximum range can be calculated using the formula: R = (P * prop_eff * range_eff) / (SFC * W), where P is the power output of the engine, prop_eff is the propeller efficiency, range_eff is the range efficiency (assumed to be 0.5), SFC is the specific fuel consumption, and W is the weight of the aircraft (including fuel). Assuming a specific fuel consumption of 0.2 kgf/hp-hr and a weight of 1315 kgf (1020 kgf maximum weight + 295 kgf fuel weight), we can calculate the maximum range as:

R = (63.4 kW * 0.9 * 0.5) / (0.2 kgf/hp-hr * 1315 kgf) = 543 km

Therefore, the maximum lift that the Predator UAV can generate is approximately 40,270 N, the maximum thrust generated by the engine is approximately 0.855 kN, and the maximum range of the Predator UAV is approximately 543 km.

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Answer:

Hot Working

Explanation:

Given that hot working is carried out at temperatures greater than the recrystallization temperature of the metal, thereby the stress needed for deformation is considerably less.

On the other hand, cold working is carried out at temperatures lesser than the recrystallization temperature of the metal, thereby stress needed for deformation is much higher

Hence, comparing cold working to hot working, flow stress is usually lower in HOT WORKING.

Answer:

true

Explanation:

g oogle told me

Answer:

A four cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Explanation:

snap chat mlockmiller20,

At 700 degrees C, the number of vacancies in a meter cubed of silver is approximately 3.6 * 10^16.

what is the equilibrium fraction of lattice sites?

To calculate the number of vacancies (per meter cubed) at 700 degrees C in silver (Ag), we need to first find the number of lattice sites per meter cubed and then multiply that number by the equilibrium fraction of vacant sites.

First, we can convert the density from g/cm^3 to kg/m^3:

10.35 g/cm^3 * (1 kg/1000 g) * (1 m^3/100^3 cm^3) = 10.35 * 10^-6 kg/m^3

Next, we can find the number of lattice sites per meter cubed by dividing the mass by the molar mass:

10.35 * 10^-6 kg/m^3 / (107.87 g/mol) * (1 mol/6.02 * 10^23 atoms) = 1.8 * 10^22 atoms/m^3

Finally, we can multiply the number of lattice sites by the equilibrium fraction of vacant sites to find the number of vacancies:

1.8 * 10^22 atoms/m^3 * 2 * 10^-6 = 3.6 * 10^16 vacancies/m^3

Therefore, at 700 degrees C, the number of vacancies in a meter cubed of silver is approximately 3.6 * 10^16.

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Answer:

(a) 12 seconds (b) t = 8.31 seconds (c) 10µ A (d) V = 20 V (e) V =0

Explanation:

Solution

Given that:

C = 6 µ which is = 6 * 10^ ⁻6

R = 2 MΩ, which is = 2 * 10^ 6

ε = 20 V

(a) When it is at the time constant we have the following:

λ = CR

= 6 * 10^ ⁻6 * 2 * 10^ 6

λ =12 seconds

(b) We solve for the half life of the circuit which is given below:

d₀ = d₀ [ 1- e ^ ⁺t/CR

d = decay mode]

d₀/2 =  d₀  1- e ^ ⁺t/12

2^⁻1 = e ^ ⁺t/12

Thus

t/12 ln 2

t = 12 * ln 2

t = 12 * 0.693

t = 8.31 seconds

(c) We find the current at t = 0

So,

I = d₀/dt

I = d₀/dt e ^ ⁺t/CR

= CE/CR e ^ ⁺t/CR

E/R e ^ ⁺t/CR

Thus,

at t = 0

I  E/R = 20/  2 * 10^ 6

= 10µ A

(d) We find the voltage across the capacitor at t = 0 which is shown below:

V = IR

= 10 * 10^ ⁻6 * 2 * 10^ 6

V = 20 V

(e)  We solve for he voltage across the resistor.

At t = 0

I = 0

V =0

Incomplete question. The options read;

A. Tech A

B. Tech B

C. Both A and B

D. Neither A nor B.

Answer:

C. Both A and B

Explanation:

Technician B is correct because the technician highlighted valid reasons why draining the compressed air systems is important.

For example, since this system helps to absorb moisture or oil from storage areas they thus need to be drained periodically in other to allow for more absorption space.

Also, the reasons mentioned by Technician A are of course correct because it is generally believed that the application of lubricants such as oil helps to reduce wear and tear.

Answer:

1. Always zero the indicator before taking a measurement.

2. Apply consistent pressure to probe when taking measurements.

3. Keep the indicator perpendicular to the surface being measured.

4. Take multiple readings and average them to ensure accuracy.

Answer:

transmitter hope thus helped!

Explanation:

Raceway is the answer

"A raceway is an enclosed conduit that forms a physical pathway for electrical wiring."

Explanation:

A business man who really focus on victory achieved through a right procedure will focus on long-term planning.

Let us understand what a short-term and long-term planning is.

Short-term will plan only for two-three years. But a long-term plan will look for future five years income projection, plan of expansion, bigger goals, etc.

A business man is the person who take risks and achieve more. A victory can be achieved in many ways one is taking bigger risks, next is focusing on long-term plans

If this is wrong, give me the answer choices so I know what's right or wrong. I'll edit the question if given to me.

In the radio communication system, multipath is the propagation phenomenon that causes diffusion or reflection in multiple different directions of a signal.

Multipath is a propagation mechanism that impacts the propagation of signals in radio communication. Multipath results in the transmission of data to the receiving antenna by two or more paths. Diffusion and reflection are the causes that create multiple paths for the signal to be delivered.

Diffraction occurs when a signal bends around sharp corners; while reflection occurs when a signal impinges on a smooth object. When a signal is received through more than one path because of the diffraction or reflection, it creates phase shifting and interference of the signal.

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Cave-ins  known as the greatest danger associated with excavations. A cave-in happens when an excavation's walls give way. Cravings can be fatal.

What is Excavation?
Excavation is the process of uncovering and removing material from a given area. It is a process that typically requires the use of specialised machinery, such as shovels, bulldozers, backhoes, and other digging equipment. Excavation is most commonly associated with construction, mining, and archaeological activities, but it can also be used in the removal of earth, rock, and other materials to create space for roads, dams, canals, and other land development projects. Excavation is also used in exploration activities, such as oil and gas drilling, as well as in the restoration of damaged ecosystems. Excavation involves the careful removal of material, often in layers, to ensure the safety of workers and to preserve the integrity of the site.

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Answer:

make sure its safe make sure it works as inteded

Explanation:

yes

The value of capacitance will be needed to produce a resonant circuit at this frequency is 79.6.

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Complete Question:

Problem 8 Determine the horsepower required to compress 1 lbm/min of ethylene oxide from 70 °F and 1 atm to 250 psia. The compressor has an efficiency of 75%. The molar heat capacity of ethylene oxide is given by

C_p=10.03+0.0184T  C_p[=]Btu/lbmole- "F ; T[=] °F C,

Answer:

\(P'=0.377hp\)

Explanation:

From the question we are told that:

Initial Temperature T_1=70 F

Final Temperature \(T_2=250pisa =114.94F\)

Efficiency \(E=75\%=0.75\)

Generally the equation for Work-done  is mathematically given by

 \(W=\int C_pT\)

 \(W=10.03(114.94-70 )+0.0184((114.94)^2-70^2 )\)

 \(W=527.21btu/ibmole\)

 \(W=11.982btu/ibm\)

Generally the equation for Efficiency  is mathematically given by

 \(E=\frac{isotropic Power}{Actual P'}\)

 \(E=\frac{P}{P'}\)

Since

Isotropic Power

  \(P=0.0167*11.982btu/ibm\)

 \(P=0.2btu/s\)

Therefore

 \(P'=\frac{0.2}{0.75}\)

 \(P'=0266btu/s\)

Since

 \(1btu/s=1.4148hp\)

Therefore

 \(P'=0.377hp\)

Answer:

Explanation:

It appears that you are trying to solve a problem involving an insulated rigid tank containing saturated liquid water and water vapor. To determine the volume of the tank, you will need to know the mass of the liquid water and the mass of the water vapor. The mass of the liquid water can be calculated by multiplying the mass of the water and vapor mixture by the fraction of the mixture that is liquid water (1.4 kg * 0.25 = 0.35 kg). The mass of the water vapor can be calculated by subtracting the mass of the liquid water from the total mass of the mixture (1.4 kg - 0.35 kg = 1.05 kg).

To determine the final temperature of the tank, you will need to know the amount of heat added to the tank by the electric resistor and the specific heat capacity of the water and water vapor mixture. The specific heat capacity is a measure of the amount of heat required to raise the temperature of a substance by a certain amount. The specific heat capacity of water is 4.186 J/g°C, and the specific heat capacity of water vapor is 2.080 J/g°C.

To determine the electric power rating of the resistor, you will need to know the amount of heat added to the tank by the resistor and the time over which the heat was added. The power rating of the resistor is equal to the amount of heat added to the tank divided by the time over which the heat was added.

I hope this helps clarify the problem and provide some guidance on how to solve it. If you have any further questions or need additional help, please don't hesitate to ask.

Answer:

2000-7000 * 6% = - 0,000126

Answer:

As a homeowner, buying a generator could spare you financial losses, like food spoilage, when power outages strike. Also, if you work from home, a standby generator is a solid investment, as it ensures you won't suffer a loss of income due to circumstances outside your control.

The Attendance at sports games decreased by 1,877 from 2011 to 2012, represented by the integer -1,877.

To numerically express the change in attendance, we can use an integer. In this case, attendance decreased by 1,877 from 2011 to 2012.

When attendance decreases, we use a negative integer to represent the change. The magnitude of the decrease is represented by the absolute value of the integer. In this scenario, attendance decreased by 1,877 individuals.

Since the attendance went from 45,015 in 2011 to 43,138 in 2012, we can calculate the change by subtracting the attendance in 2012 from the attendance in 2011. The result is -1,877, where the negative sign indicates a decrease.

Thus, the integer representing the attendance change from 2011 to 2012 is -1,877. This means that attendance decreased by 1,877 individuals during that period, resulting in a total attendance of 43,138 in 2012 when starting from 45,015 in 2011.

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Complete Question:

Use An Integer To Express The Number Representing A Change. From 2011 To 2012, Attendance At Sports Game Went From 45,015 to 43,138, a decrease of 1,877

Answer: According to a recent study quoted in the textbook, communication and interpersonal skills were the number one skill(s) that college graduates found useful in the business world.

Explanation:

Answer:

the third anwser is right on edgeinuity

Explanation:

Answer:

Technology can pull students’ focus away from their tasks.

Explanation: