power cords can be damaged by Which of the following?

True. If the rank of the augmented matrix of a system of n linear equations in n unknowns equals the rank of the matrix of coefficients, then the system has a unique solution. This is because the rank indicates the number of linearly independent rows, which determines the existence and uniqueness of the solution.

When solving a system of linear equations in n unknowns, the coefficients of the variables are organized into a matrix called the matrix of coefficients. The right-hand side of each equation is organized into a column vector, and the resulting augmented matrix is formed by appending this vector to the matrix of coefficients.

The rank of a matrix is the maximum number of linearly independent rows in the matrix. The rank of the augmented matrix is the same as the rank of the matrix of coefficients if and only if the system of equations has a unique solution.

This is because the rank of the matrix of coefficients indicates the number of equations that are independent of each other, while the rank of the augmented matrix indicates the number of equations that are independent of each other and also satisfy the right-hand side of the equation. If the ranks of both matrices are equal, then there is a one-to-one correspondence between equations and variables, and the system has a unique solution.

In other words, if the ranks are equal, there are exactly n linearly independent equations for n unknowns, and so there is a unique solution that satisfies all of the equations. If the ranks are not equal, then there are either no solutions or an infinite number of solutions.

Know more about the augmented matrix click here:

https://brainly.com/question/30403694

#SPJ11

Answer:

No it is not permitted

Explanation:

It is not permitted  because as per NEC 410.21 policy no other conductor is allowed to be passed through integral junction box luminaries unless such conductor supply recessed luminaries.

The marking will show that the Luminaries is of the right construction or right installation to ensure that the the conductors ( in the outer boxes ) will not be exposed to temperatures greater than the conductor rating, hence the lack of marking makes it not to be permitted.

Answer:

B.

Explanation:

I think not sure hehe

Answer:

This problem has been solved!

See the answer

7. The voltage that must be less than the breakdown voltage of the diode in order to prevent damage to the diode is the ________.

peak inverse voltage

maximum diode voltage

reverse surge voltage

maximum peak voltage

8. Assume the input signal to a rectifier circuit has a peak value of Vm = 12 V and is at a frequency of 60 Hz. Assume the output load resistance is R = 2kΩ and the ripple voltage is to be limited to Vr= 0.4 V. Determine the capacitance required to yield this specification for a (a) full-wave rectifier and (b) half-wave rectifier. Show all work.

9.A full-wave rectifier is to be designed to produce a peak output voltage of 12 V, deliver 120 mA to the load, and produce an output with a ripple of not more than 5 percent. An input line voltage of 120 V (rms), 60 Hz is available. Consider a bridge type rectifier. Specify the transformer ratio and the size of the required filter capacitor. Show all work.

Explanation:

Answer:

16.4925 inches

Explanation:

Z≤ -4.852 ft, Maximum efficiency is η≅ 0.88 ≅ 88% is the maximum discharge possible

Solution

Given Data:-

D = 14.62in, N = 2134 rc/min, T=20°C. At T= 20°C ɣ=ρg= 62.35 lb/ft³, vapor pressure. Pv = 49.2 lb/ft².

The efficienies at each flow rate is computal by using formula

η = ρgθH / (550) (bhp)

→ As we can See the maximum efficiency point is at θ = 6ft³/s (close to 6ft³/s)

Maximum efficiency is η≅ 0.88 ≅ 88%

b) Given NPSHR = 16 ft,hg=22ft. Zactual. = 9ft  (below the sea surface)

To avoid cavitation NPSH < Pa - Pv/ρg - Z - hf

Z < Pa - Pv/ρg - hf

Z < 2116 - 49.2/62.35 - 16 - 22 [1 atm = 2116 lb/ft2]

Z≤ -4.852 ft

-> Keeping the pump 9 ft below the surface gives 4.148 ft of marign against cavitation.

Hence it is Sufficient to avoid cavitation.

Learn more about Efficiency here:

https://brainly.com/question/13764250

#SPJ4

Answer:

F=200kN

Explanation:

Answer:

a) √3/2 is the answer

b) √3 is the answer

Answer:

474.536 Joules

Explanation:

Use a converter machine.

1lb = 1.355818 j

350 = 1.355818 j *350

= 474.536

Generators are mechanical devices that use electromagnetic induction to produce electricity. For a load of 200 MW, P₁ is 80 MW and P₂ is 120 MW.

Load sharing is the sharing and operational functioning of the multiple generators together.

Given,

Total load = 200 MW (P₁ +P₂)

For an economic load dispatch, the minimal conditions should be,

I(C₁) = I(C₂)

0.2 P₁ + 60 = 0.3 P₂ + 40

0.2 P₁ - 0.3 P₂ = -20

From the total load, the individual values are calculated as:

0.2 (200 -P₂) -0.3 P₂ = -20

40 - 0.2 P₂ -0.3 P₂ = -20

60 = 0.5 P₂

P₂ = 120 MW

P₁ + 120 = 200

P₁ = 80 MW

Therefore, P₁ = 80 MW and P₂ = 120 MW.

Learn more about load sharing here:

https://brainly.com/question/14727379

#SPJ4

This question is incomplete, the complete question is;

An air-standard Diesel cycle engine operates as follows: The temperatures at the beginning and end of the compression stroke are 30 °C and 700 °C, respectively. The net work per cycle is 590.1 kJ/kg, and the heat transfer input per cycle is 925 kJ/kg. Determine the a) compression ratio, b) maximum temperature of the cycle, and c) the cutoff ratio, v3/v2.

Use the cold air standard assumptions.

Answer:

a) The compression ratio is 18.48

b) The maximum temperature of the cycle is 1893.4 K

c) The cutoff ratio, v₃/v₂ is 1.946

Explanation:

Given the data in the question;

Temperature at the start of a compression T₁ = 30°C = (30 + 273) = 303 K

Temperature at the end of a compression T₂ = 700°C = (700 + 273) = 973 K

Net work per cycle \(W_{net\) = 590.1 kJ/kg

Heat transfer input per cycle Qs = 925 kJ/kg

a) compression ratio;

As illustrated in the diagram below, 1 - 2 is adiabatic compression;

so,

Tγ\(^{Y-1\) = constant { For Air, γ = 1.4 }

hence;

⇒ V₁ / V₂ = \((\) T₂ / T₁ \()^{\frac{1}{Y-1}\)

so we substitute

⇒ V₁ / V₂ = \((\)  973 K / 303 K  \()^{\frac{1}{1.4-1}\)

= \((\)  3.21122  \()^{\frac{1}{0.4}\)

= 18.4788 ≈ 18.48

Therefore, The compression ratio is 18.48

b) maximum temperature of the cycle

We know that for Air, Cp = 1.005 kJ/kgK

Now,

Heat transfer input per cycle Qs = Cp( T₃ - T₂ )

we substitute

925 = 1.005( T₃ - 700 )

( T₃ - 700 ) = 925 / 1.005

( T₃ - 700 ) = 920.398

T₃ = 920.398 + 700

T₃ = 1620.398 °C

T₃ = ( 1620.398 + 273 ) K

T₃ = 1893.396 K ≈ 1893.4 K

Therefore, The maximum temperature of the cycle is 1893.4 K

c)  the cutoff ratio, v₃/v₂;

Since pressure is constant, V ∝ T

So,

cutoff ratio S = v₃ / v₂  = T₃ / T₂

we substitute

cutoff ratio S = 1893.396 K / 973 K

cutoff ratio S = 1.9459 ≈ 1.946

Therefore, the cutoff ratio, v₃/v₂ is 1.946

The objective is to find the current flowing through resistor R_6 (I_6), given the values of resistors R_4, R_5, R_6, R_7, and R_8, as well as the current flowing through resistor R_1 (I_1) and the voltage across resistor R_5 (V_5).

To find the current flowing through resistor R_6, we need to use Kirchhoff's Current Law (KCL) to solve for the unknown currents in the circuit. First, we can use Ohm's Law to find the voltage across resistor R_7, which is equal to V_7 = I_1 * R_7. Next, we can use KCL to find the total current flowing into node A, which is equal to I_A = I_1 + I_3, where I_3 is the current flowing through resistors R_2 and R_3. Since the values of resistors R_2 and R_3 are unknown, we can use the voltage across resistor R_5 and the known resistances to find the current flowing through resistor R_5, which is equal to I_5 = V_5 / R_5. Using KCL again, we can find the current flowing through resistor R_4, which is equal to I_4 = I_A - I_5. Finally, we can use Ohm's Law to find the voltage across resistor R_6, which is equal to V_6 = I_6 * R_6. Using KCL one last time, we can find the current flowing through resistor R_6, which is equal to I_6 = (V_7 - V_6) / R_8.

To summarize, the current flowing through resistor R_6 can be found by using Kirchhoff's Current Law and Ohm's Law to solve for the unknown currents and voltages in the circuit. The final equation for the current flowing through resistor R_6 is I_6 = (V_7 - V_6) / R_8.

To learn more about current, visit:

https://brainly.com/question/16595375

#SPJ11

Answer: B, plumb bob

Explanation:

A plumb bob's main job was to establish what is true (ie vertical and perpendicular to a surface,) as well as the secondary task of marking these points.

Compasses are mainly used to draw circles, protractors are used to measure angles, and rulers are used to measuring length.

Answer:

The appropriate answer is "0.0043".

Explanation:

The given values is:

Error probability,

p = 0.01

Received digits,

n = 10

and,

\(x\sim Binomial\)

As we know,

⇒  \(P(x)=\binom{n}{x}p^xq^{n-x}\)

Now,

⇒  \(P(x >1) =1- \left \{ P(x=0)+P(x=1) \right \}\)

⇒                 \(=1-\left \{\binom{10}{0}(0.01)^0(0.99)^{10-0}+\binom{10}{0}(0.01)^1(0.99)^{10-1} \right \}\)

⇒                 \(=1-0.9957\)

⇒                 \(=0.0043\)

Answer:

it is B trust me I know thank yiu

Levers are a type of basic machine that are useful for altering the span of the shaft or the height of the fulcrum.

A machine seems to be a physical system that use power to exert forces, regulate movement, and carry out an activity. The phrase is frequently used to refer to both naturally occurring biological macromolecules and manmade devices that use engines or motors.

The Greek word "makhana," which means "device," is where the term "machine" originates. In 1540, the name was first used to designate any form of construction in English. About 1670, its contemporary meaning as a term for a machine with several moving components started to take shape.

To know more about Machine visit:

https://brainly.com/question/30695896

#SPJ4

When lumber is sent upwards, inertial force will act downwards.

So,

   \(F_{i} = m a\)

    where, m = mass of lumber

     a = acceleration

   \(F_{i} = (\frac{w}{g} ) a\)

(Because, W = mg)

What is inertial force?

The law of inertia, also known as Newton's First Law, is the foundation of physics. It states that if an object is at rest or moving at a constant speed in a straight line, it will continue to be at rest or move at the same speed unless acted upon by a force.

This object will continue to move until less force or friction causes it to stop. The first of the three laws of motion is the Law of Inertia. Galileo Galilei experimented with this law, which René Descartes later deduced. Inertia Definition.

To learn more about Force, visit: https://brainly.com/question/25748369

#SPJ1

If an engine fails during rollout or just before takeoff, immediately shut both throttles and land the aircraft safely. Before reaching a safe single engine speed right away after takeoff, drop your nose to increase velocity.

Closing the throttle, turning off the fuel pump, setting the mixture control to idle cutoff, and simply cranking the engine is the most reliable hot start method I've found.

If an engine fails during rollout or just before takeoff, immediately shut both throttles and land the aircraft safely. Before reaching a safe single engine speed right away after takeoff, drop your nose to increase velocity. If you are unable to climb, close both throttles and land straight ahead.

The typical practice for the majority of aircraft would be to abandon takeoff if an engine failed during takeoff. In small aircraft, the pilot should turn the throttles down to idle, activate the speed brakes (if provided), and apply the brakes as needed if the engine fails before VR (Rotation Speed).

To learn more about engine procedure refer to:

https://brainly.com/question/18428188

#SPJ1

To execute the above function, we can do this:

Click the first Criteria cell for the ManagerID field

Type M-10

Click the second Criteria cell for the State field

Type TX

Click the Run button

This is how to amend the criteria.

A datasheet is a graphical representation of the information contained in a table or the results of a query.

As illustrated below, it displays the fields for each record from a table, form, or query result in a tabular (row and column) format. Tables and queries open in Datasheet view by default.

Learn more about criteria at:

https://brainly.com/question/28268158

#SPJ1

Your answer: Create the SPP table with a composite primary key and foreign keys referencing Suppliers, Parts, and Projects. The correct element from the list is b) FOREIGN KEY projID.

Explanation:
1. Start by creating the table with the name SPP.
2. Define the four attributes with their respective data types: supID INTEGER, partID INTEGER, projID INTEGER, and qty INTEGER.
3. Declare a composite primary key using supID, partID, and projID.
4. Create foreign key constraints for supID, partID, and projID referencing the Suppliers, Parts, and Projects tables, respectively.

Here's the CREATE TABLE statement:

```
CREATE TABLE SPP (
 supID INTEGER,
 partID INTEGER,
 projID INTEGER,
 qty INTEGER,
 PRIMARY KEY (supID, partID, projID),
 FOREIGN KEY (supID) REFERENCES Suppliers(supID),
 FOREIGN KEY (partID) REFERENCES Parts(partID),
 FOREIGN KEY (projID) REFERENCES Projects(projID)
);
```

From the list provided, the element that appears as part of the definition is b) FOREIGN KEY projID.

Know more about the data types click here:

https://brainly.com/question/30615321

#SPJ11

Answer:

4 balls

Explanation:

First, we find out how many tennis balls are there altogether.

There are 8 cans and each can has 3 tennis balls.

Total numberThese balls are shared with 6 players. So we divide the total quantity by 6 to find out how many tennis balls each player gets.

Each player = 24 ÷ 6 = 4

of balls = 8 x 3 = 24

Answer:

When nitrogen consumption and nitrogen excretion are approximately the same, a person is in nitrogen balance.

Explanation:

Answer:

A

Explanation:

Answer: https://www.careerbuilder.com/advice/what-are-problemsolving-skills-and-why-are-they-important

Explanation:

please if this helps give me brainlest it is about career builder

Answer:

apple

Explanation:

is the answer toWhat is your favorite Electronic company? (E.g. Windows, Apple, Samsung...)

If both the sender and receiver calculate the same hash value for the same chunk of data, the receiver can conclude that the data was not corrupted during transmission.

Hash functions are algorithms that generate a fixed-size string of characters or a hash value from input data of arbitrary size. Even a small change in the input data will result in a significantly different hash value. By comparing the hash value calculated by the sender with the hash value calculated by the receiver, it is possible to detect if any data corruption has occurred during transmission. If the hash values match, it indicates that the data has not been altered during transmission and is likely to be intact. Hash functions are commonly used in data integrity checking, data validation, and error detection in various communication protocols, file transfer protocols, and data storage systems.

learn more about  transmission   here:

https://brainly.com/question/15884673

#SPJ11

Answer:

Well to me there all energy resources.

Explanation:

Answer:

Hydropower is fueled by water, so it's a clean fuel source, meaning it won't pollute the air like power plants that burn fossil fuels, such as coal or natural gas. ... In addition to a sustainable fuel source, hydropower efforts produce a number of benefits, such as flood control, irrigation, and water supply.

Explanation:

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

 \(P'=0.377hp\)

The required MTBF (in hours) for the new generator (assuming exponential and 8760 hours/year) will be 8760 hours.

7. Total test hours should be allocated for the new generator (assuming 1 failure is allowed) at 50% confidence should be 688 hours.

8. The demonstrated MTBF (ΘL) at 50% confidence if no failures were observed will be 43,800 hours. Yes, the requirement was demonstrated.

9. The static reliability of the system for this situation can be determined by calculating the probability of no failure. The probability of no failure will be 0.85 * 0.95 * 0.98 * 0.99 = 0.764. Therefore, the static reliability of the system for this situation will be 0.764.10.

Probability of the top-level event (system failure) can be calculated by adding the probabilities of all the paths leading to the top-level event. The probability of the top-level event (system failure) will be:

P(system failure) = P(Gen A failure) + P(Gen B failure) + P(Gen C failure) + P(Tie Bus failure) * P(No load shedding) + P(Tie Bus failure) * P(Load shedding)

P(Gen A failure) = 1 - e^(-8760/30000) = 0.215

P(Gen B failure) = 0.85 * (1 - e^(-8760/18000)) = 0.37

P(Gen C failure) = 0.95 * (1 - e^(-8760/30000)) = 0.276

P(Tie Bus failure) = 0.98

P(No load shedding) = 0.99

P(Load shedding) = 0.01

P(system failure) = 0.215 + 0.37 + 0.276 + 0.98 * 0.99 + 0.98 * 0.01 * (1 - P(Gen A failure)) * (1 - P(Gen B failure)) * (1 - P(Gen C failure)) * P(Tie Bus failure)P(system failure) = 0.215 + 0.37 + 0.276 + 0.98 * 0.99 + 0.98 * 0.01 * (1 - 0.215) * (1 - 0.37) * (1 - 0.276) * 0.98P(system failure) = 0.9644

Therefore, the probability of the top-level event (system failure) will be 0.9644.

Learn more about probability here: https://brainly.com/question/13604758

#SPJ11