Categories

## In Resistance to Civil government why does Henry David Thoreau explain the circumstances of his night in jail. PLZ HALP

In Resistance to Civil government why does Henry David Thoreau explain the circumstances of his night in jail. PLZ HALP

Categories

## PLZ HELP ME FAST! In Resistance to Civil government why does Henry David Thoreau explain the circumstances of his night in jail.

PLZ HELP ME FAST! In Resistance to Civil government why does Henry David Thoreau explain the circumstances of his night in jail.

Categories

## A machine that provides both constant speed and maximum resistance throughout the full range of motion provides what type of muscular contraction?

a) The time the police officer required to reach the motorist was 15 s.

b) The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) The total distance traveled by the officer was 225 m.

Explanation:

The equations for the position and velocity of an object moving in a straight line are as follows:

x = x0 + v0 · t + 1/2 · a · t²

v = v0 + a · t

Where:

x = position at time t

x0 = initial position

v0 = initial velocity

t = time

a = acceleration

v = velocity at time t

a)When the officer reaches the motorist, the position of the motorist is the same as the position of the officer:

x motorist = x officer

Using the equation for the position:

x motirist = x0 + v · t (since a = 0).

x officer = x0 + v0 · t + 1/2 · a · t²

Let´s place our frame of reference at the point where the officer starts following the motorist so that x0 = 0 for both:

x motorist = x officer

x0 + v · t = x0 + v0 · t + 1/2 · a · t²      (the officer starts form rest, then, v0 = 0)

v · t = 1/2 · a · t²

Solving for t:

2 v/a = t

t = 2 · 15.0 m/s/ 2.00 m/s² = 15 s

The time the police officer required to reach the motorist was 15 s.

b) Now, we can calculate the speed of the officer using the time calculated in a) and the  equation for velocity:

v = v0 + a · t

v = 0 m/s + 2.00 m/s² · 15 s

v = 30 m/s

The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) Using the equation for the position, we can find the traveled distance in 15 s:

x = x0 + v0 · t + 1/2 · a · t²

x = 1/2 · 2.00 m/s² · (15s)² = 225 m

Categories

## You drop a stone down a well that is 9.5 m deep. how long is it before you hear the splash? the 9) speed of sound in air is 343 m/s and air resistance is negligible.

a) The time the police officer required to reach the motorist was 15 s.

b) The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) The total distance traveled by the officer was 225 m.

Explanation:

The equations for the position and velocity of an object moving in a straight line are as follows:

x = x0 + v0 · t + 1/2 · a · t²

v = v0 + a · t

Where:

x = position at time t

x0 = initial position

v0 = initial velocity

t = time

a = acceleration

v = velocity at time t

a)When the officer reaches the motorist, the position of the motorist is the same as the position of the officer:

x motorist = x officer

Using the equation for the position:

x motirist = x0 + v · t (since a = 0).

x officer = x0 + v0 · t + 1/2 · a · t²

Let´s place our frame of reference at the point where the officer starts following the motorist so that x0 = 0 for both:

x motorist = x officer

x0 + v · t = x0 + v0 · t + 1/2 · a · t²      (the officer starts form rest, then, v0 = 0)

v · t = 1/2 · a · t²

Solving for t:

2 v/a = t

t = 2 · 15.0 m/s/ 2.00 m/s² = 15 s

The time the police officer required to reach the motorist was 15 s.

b) Now, we can calculate the speed of the officer using the time calculated in a) and the  equation for velocity:

v = v0 + a · t

v = 0 m/s + 2.00 m/s² · 15 s

v = 30 m/s

The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) Using the equation for the position, we can find the traveled distance in 15 s:

x = x0 + v0 · t + 1/2 · a · t²

x = 1/2 · 2.00 m/s² · (15s)² = 225 m

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## Choose the answer which best explains how vasoconstriction can cause increased blood pressure. choose the answer which best explains how vasoconstriction can cause increased blood pressure. vasoconstriction increases peripheral resistance (also called vascular resistance). vasoconstriction decreases cardiac output. vasoconstriction increases cardiac output. vasoconstriction decreases peripheral resistance (also called vascular resistance).

There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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## If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance, how far would it have fallen (in m) after 2 s? (g = 10 m/s2) 20.0

The gravitational force Fg between two objects is given by the equation:

Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies.

Due to the gravitational attraction the pencil and the eraser will attract if we there is no friction on the surface.

m₁=10 g=0.01 kg is the mass of the pencil
m₂=20 g=0.02 kg is the mass of the eraser
r=2.5 cm = 0.025 m

First we calculate the Fg:

Fg={(6.67*10^-11)*0.01*0.02}/(0.025²)=2.1344*10^-11 N

To get the velocity v of the pencil:

v²=2as, where a is the acceleration of the pencil and s is the path. In our case s=r so we can write:

v²=2ar

a=Fg/m₁= 2.133*10^-9 m/s²

v²=2*(2.133*10^-9)*0.025=1.0665*10^-10

v=√(1.0665*10^-10)=1.0327*10^-5 m/s

We have the velocity and the acceleration, so we can calculate the time t with the equation:

t=v/a=(1.0327*10^-5)/(2.133*10^-9)=4841.6 s

1 hour has 3600 s so when we divide time t in seconds by 3600 we get time T in hours:

T=t/3600=4841.6/3600=1.3449 h.

So the time for the pencil and eraser to touch is T=1.3449 hours.

Also time T can be expressed like T= 1h and 20 mins and 41.64 s

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## Women workers increased dramatically during the war. Why was there resistance at first to women working in war plants?

Poland Hungary Bulgaria

In the aftermath of World War II, the influence of the Soviet Union extended through the countries that were invaded by fascists in the Eastern Front, such as Poland, Hungary, and Bulgaria.

Poland

In January 1947, elections were held, resulting in the communist Republic of Poland. Previously elections were intervened so the communist candidates could turn victorious, and the members of communist resistance continued to resist in the territories near to Ucrain but fierce soviets intervention turned to mass arrest where all kinds of executions, deportations, and imprisonment took place.

Hungary

In Hungary, the Soviets imposed harsh conditions that seized key raw materials and interfered in the internal affairs and social, policymaking. The Red army set some vigilance with police to persecute political opponents and enemies of the state.

Bulgaria

In September 1944, The Soviets declared war on Bulgary, under the argument that this country allowed its territory where the Wehrmacht (Germany) crossed and continued to press the frontlines eastwards. The Red Army motivated a coup d Etat where communists also set favorable conditions for the creation of a communist regime.

-This countries became to form the Eastern bloc, a period that lasted several decades until the 1989 Revolutions set an important amount of political and social changes in Europe in East and Central Europe, causing most of the socialist states, formerly puppet states to Soviet Russia to collapse and engage in democratic process and incorporate a different economic model.

The map shows key allied states in this Eastern bloc

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## . A resistor is marked with the following color bands: brown, black, red, and silver. What is the resistance of this resistor? A. 10 B. 100 C. 10,000 D. 1,000

. A resistor is marked with the following color bands: brown, black, red, and silver. What is the resistance of this resistor? A. 10 B. 100 C. 10,000 D. 1,000

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## Which of the following is a contact force? A.Air resistance B.Magnetic force C.Gravity D.Electrical force

The gravitational force Fg between two objects is given by the equation:

Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies.

Due to the gravitational attraction the pencil and the eraser will attract if we there is no friction on the surface.

m₁=10 g=0.01 kg is the mass of the pencil
m₂=20 g=0.02 kg is the mass of the eraser
r=2.5 cm = 0.025 m

First we calculate the Fg:

Fg={(6.67*10^-11)*0.01*0.02}/(0.025²)=2.1344*10^-11 N

To get the velocity v of the pencil:

v²=2as, where a is the acceleration of the pencil and s is the path. In our case s=r so we can write:

v²=2ar

a=Fg/m₁= 2.133*10^-9 m/s²

v²=2*(2.133*10^-9)*0.025=1.0665*10^-10

v=√(1.0665*10^-10)=1.0327*10^-5 m/s

We have the velocity and the acceleration, so we can calculate the time t with the equation:

t=v/a=(1.0327*10^-5)/(2.133*10^-9)=4841.6 s

1 hour has 3600 s so when we divide time t in seconds by 3600 we get time T in hours:

T=t/3600=4841.6/3600=1.3449 h.

So the time for the pencil and eraser to touch is T=1.3449 hours.

Also time T can be expressed like T= 1h and 20 mins and 41.64 s

Categories

## A rock is stuck deep in the dirt. When you pull on the rock to remove it, what type of force are you exerting? A.Compression B.Strong nuclear force C.Tension D.Air resistance

The equation for how temperature changes the resistance R is:

R=R₀(1+α(T-T₀)), where R₀ is the resistance at T₀=20°C, T is the temperature for which we want to calculate the resistance and α is the temperature coefficient for resistance.

The resistance of the copper wire increases by 18% or by 0.18, so the new value for the resistance is R=1.18*R₀.

T₀=20°C
=0.0068
R=1.18*R₀

Now we need to input that into the equation for resistance change and solve for temperature T.

1.18R₀=R₀(1+α(T-20)), R₀ cancels out,

1.18=1+α(T-20),

1.18-1=α(T-20), we divide by α,

0.18/α=T-20, we put 20 on the left side,

26.47+20=T

T=46.47°C

So the temperature on which the resistance of copper wire will increase by 18% is T=46.47°C.

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## A e limb of mass 12kg falls straight down. If air resistance exerts 27 N of froce on the limb as it falls, what is the net force on the tree limb

The equation for how temperature changes the resistance R is:

R=R₀(1+α(T-T₀)), where R₀ is the resistance at T₀=20°C, T is the temperature for which we want to calculate the resistance and α is the temperature coefficient for resistance.

The resistance of the copper wire increases by 18% or by 0.18, so the new value for the resistance is R=1.18*R₀.

T₀=20°C
=0.0068
R=1.18*R₀

Now we need to input that into the equation for resistance change and solve for temperature T.

1.18R₀=R₀(1+α(T-20)), R₀ cancels out,

1.18=1+α(T-20),

1.18-1=α(T-20), we divide by α,

0.18/α=T-20, we put 20 on the left side,

26.47+20=T

T=46.47°C

So the temperature on which the resistance of copper wire will increase by 18% is T=46.47°C.

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## How much would you have to raise the temperature of a copper wire (originally at 20 ?c) to increase its resistance by 18 % ? the temperature coefficient of resistivity of copper is 0.0068 (?c)?1?

How much would you have to raise the temperature of a copper wire (originally at 20 ?c) to increase its resistance by 18 % ? the temperature coefficient of resistivity of copper is 0.0068 (?c)?1?

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## You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 17 m/s2. After 30 s, the engine shuts off and the rocket continues rising (in freefall) for a while. (Neglect any effects due to air resistance.) The rocket eventually stops rising and then falls back to the ground. You want to get a sample of air that is 23 km above the ground.

The gravitational force Fg between two objects is given by the equation:

Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies.

Due to the gravitational attraction the pencil and the eraser will attract if we there is no friction on the surface.

m₁=10 g=0.01 kg is the mass of the pencil
m₂=20 g=0.02 kg is the mass of the eraser
r=2.5 cm = 0.025 m

First we calculate the Fg:

Fg={(6.67*10^-11)*0.01*0.02}/(0.025²)=2.1344*10^-11 N

To get the velocity v of the pencil:

v²=2as, where a is the acceleration of the pencil and s is the path. In our case s=r so we can write:

v²=2ar

a=Fg/m₁= 2.133*10^-9 m/s²

v²=2*(2.133*10^-9)*0.025=1.0665*10^-10

v=√(1.0665*10^-10)=1.0327*10^-5 m/s

We have the velocity and the acceleration, so we can calculate the time t with the equation:

t=v/a=(1.0327*10^-5)/(2.133*10^-9)=4841.6 s

1 hour has 3600 s so when we divide time t in seconds by 3600 we get time T in hours:

T=t/3600=4841.6/3600=1.3449 h.

So the time for the pencil and eraser to touch is T=1.3449 hours.

Also time T can be expressed like T= 1h and 20 mins and 41.64 s

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## I NEED HELP AND WILL RATE BRAINLIEST!!!!! A substance that has low volatility is also likely to possess: weak surface tension ——-strong surface tension little resistance to flow weak intermolecular forces I think that it is strong surface tension but I also kinda think that it would be little resistance to flow but I am only able to choose one so what do I do?

25) Answer is: less metallic and more nonmetallic.

Electronegativity increases from left to right across a period, atoms have tendency to attract electrons.

Electronegativity (χ) is a property that describes the tendency of an atom to attract a shared pair of electrons.

Radioisotope has an unstable atomic nucleus and emit energy and particles when it changes to a more stable form.

Francium (Fr) is element with atomic number 87 (87 protons and 87 electrons).

Boiling is the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.

The Celsius scale was based on 0°C for the freezing point of water and 100°C for the boiling point of water at 1 atm pressure.

There are two types of reaction:

1) endothermic reaction (chemical reaction that absorbs more energy than it releases, ΔH>0).

2) exothermic reaction (chemical reaction that releases more energy than it absorbs).

For example, the breakdown of ozone is an endothermic process. Ozone has lower energy than molecular oxygen (O₂) and oxygen atom, so ozone need energy to break bond between oxygen atoms.

The average kinetic energy of molecules depends on the temperature.

As temperature increases, molecules gain more energy from surrounding and move faster.

Kinetic energy (standard unit is the joule J) depends on speed of the molecule.

Solid gains kinetic energy to become a liquid and then becomes a gas.

This was famous Rutherford’s Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles.

Rutherford observed the deflection of alpha particles on the photographic film.

Alpha particles are helium atom particles, consist of two protons and two neutrons.

According to Rutherford model of the atom: atoms have their charge concentrated in a very small nucleus.

For example, calcium oxide.

Calcium oxide (CaO) has ionic bonds between calcium cations (Ca²⁺) and oxygen anions (O²⁻).

Because it has strong ionic bonds, it has high melting point (around 2600°C).

Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).

32) Answer is: a scientific model.

A scientific model is a representation of an idea, an object, a process or a system that is used to describe and explain phenomena that cannot be experienced directly.

33) Answer is: the superscript is mass number and the subscript is atomic number.

Atomic number(Z) is the number of protons, which is characteristic of a chemical element..

Mass number (A) is the total number of protons and neutrons in a nucleus.

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## In the hunger games, what are 2 clues of resistance in the capitol

In the hunger games, what are 2 clues of resistance in the capitol

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## When franco became dictator of spain how did other countries help franco’s nationalist forces bring about the collapse of republican resistance?

Poland Hungary Bulgaria

In the aftermath of World War II, the influence of the Soviet Union extended through the countries that were invaded by fascists in the Eastern Front, such as Poland, Hungary, and Bulgaria.

Poland

In January 1947, elections were held, resulting in the communist Republic of Poland. Previously elections were intervened so the communist candidates could turn victorious, and the members of communist resistance continued to resist in the territories near to Ucrain but fierce soviets intervention turned to mass arrest where all kinds of executions, deportations, and imprisonment took place.

Hungary

In Hungary, the Soviets imposed harsh conditions that seized key raw materials and interfered in the internal affairs and social, policymaking. The Red army set some vigilance with police to persecute political opponents and enemies of the state.

Bulgaria

In September 1944, The Soviets declared war on Bulgary, under the argument that this country allowed its territory where the Wehrmacht (Germany) crossed and continued to press the frontlines eastwards. The Red Army motivated a coup d Etat where communists also set favorable conditions for the creation of a communist regime.

-This countries became to form the Eastern bloc, a period that lasted several decades until the 1989 Revolutions set an important amount of political and social changes in Europe in East and Central Europe, causing most of the socialist states, formerly puppet states to Soviet Russia to collapse and engage in democratic process and incorporate a different economic model.

The map shows key allied states in this Eastern bloc

Categories

## An electric oven has a resistance of 10.0 Ω and a voltage of 220 V. How much current does it draw? 22 A 2.2 A 220 A 2,200 A

The equation for how temperature changes the resistance R is:

R=R₀(1+α(T-T₀)), where R₀ is the resistance at T₀=20°C, T is the temperature for which we want to calculate the resistance and α is the temperature coefficient for resistance.

The resistance of the copper wire increases by 18% or by 0.18, so the new value for the resistance is R=1.18*R₀.

T₀=20°C
=0.0068
R=1.18*R₀

Now we need to input that into the equation for resistance change and solve for temperature T.

1.18R₀=R₀(1+α(T-20)), R₀ cancels out,

1.18=1+α(T-20),

1.18-1=α(T-20), we divide by α,

0.18/α=T-20, we put 20 on the left side,

26.47+20=T

T=46.47°C

So the temperature on which the resistance of copper wire will increase by 18% is T=46.47°C.

Categories

## The _______ stage of the body’s reaction to stress can actually be a positive time depending on the stressor. A. exhaustion B. termination C. alarm D. resistance

Cardiovascular fitness is best described by the ability of the body to transport oxygenated blood efficiently.

Further Explanation:

The persons’ daily life routine is organized with the help of physical activity. The physical activity is differentiated into different levels which help a person to achieve a healthy lifestyle.

Children should spend at least 60 minutes on physical activity on a daily basis whereas adults should spend at least 30 minutes on physical activity to have a good and healthy lifestyle. It increases the capability of a body to perform the daily activity.

Physical activity depends on:

• Body composition: It includes the amount of fat, water, and muscle.
• Cardiorespiratory fitness: It makes available energy at the time of physical exercise.
• Muscular strength: Help to apply force at the time of physical exercise.
• Muscular endurance Help in exerting force without getting muscle fatigue.
• Flexibility: Help in smooth movement of joints.

The cardiovascular fitness is an ability of the cardiovascular system (lungs, vessels and heart) to proficiently provide oxygenated blood to functioning muscles and the muscle which use oxygen. Aerobic exercise is an important part of any fitness program. Aerobic exercise programs increase the consumption of oxygen and heart rate. Physical fitness helps us to prevent heart disease, lungs cancer, stroke, and type II diabetes.

Subject: Health

Chapter: Physical Fitness

Keywords:

Safe, heart, cardiorespiratory exercise, oxygen, intensity, muscular strength, aerobic exercise, fitness, heart rate, muscles.

Categories

## A circuit has a current of 3.6 A and a resistance of 5.0 Ω. What is the voltage applied to the circuit?

The product of the charge and voltage is the work .

Explanation:

According to Ohm’s law

The voltage is equal to the product of the current and resistance. Its unit is volt.

Power :

Power is the defined as the electric energy per unit time. its unit is J/s or watt.

According to Ohm’s law,

The power is equal to the square of voltage divided by the resistance.

The power equal to the product of resistance and square of current.

The product of current and voltage is equal to the power.

Current :

The current is equal to the voltage divided by the resistance.

The ampere is the unit of current.

Work : Work is related to the energy.

The Voltage is equal to the energy divided by the charge.

The product of charge and potential is called energy.

Hence, The product of the charge and voltage is the work .

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## In what way did Africans use music as a means of resistance?

In what way did Africans use music as a means of resistance?

Categories

## The continued display of a behavior after reinforcement has been removed is known as ___________. a. discriminative stimulus b. negative punishment c. resistance to extinction d. secondary reinforcement

The explanations are mentionned in the attached file.

1. The right answer is invertebrates

2. The right answer is Eukaryotic, multicellular and heterotrophic lacking cell walls

3. The right answer is Identify and name organisms

4. The right answer is Have a backbone or spinal column.

5. The right answer is Sponge

6. The right answer is Bilateral

7. The right answer is False

8. The right answer is Domain

9. The right answer is Eukarya

10. The right answer is Reproduction

11. The right answer is Chordates

12. The right answer is Cephalization

13. The right answer is Move and obtain food in any direction.

14. The right answer is More than seventy percent of all the known species on the planet.

15. The right answer is Stinging tenticles

16. The right answer is Eat more food and produce more ATP

live in cold climates

17. The right answer is Learned behaviors are taught by parents

18. The right answer is All of the above

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## The greatest strength improvements in resistance training occur in 6-8 weeks 3-4 weeks Immediately

█ Question █

An elementary classroom of 28 students has had 13 children who have developed chicken pox over the last 3 weeks. What is the pattern of occurrence?

This type of pattern of occurrence is called continuous source. It’s a type of a pattern a certain place or event gets very frequently.

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia

Categories

## A circuit has a resistance of 2.5 Ω and is powered by a 12.0 V battery. The current in the circuit, to the nearest tenth

The formula for the energy stored in the magnetic field of an inductor is:

E  =  (1/2) (inductance) (current)²  .

In the present situation:

Energy = (3 kilo-watt-hour) x (1,000 / kilo) x (joule/watt-sec) x (3,600 sec/hr)

=  (3 · 1000 · 3,600)  (kilo·watt·hr·joule·sec / kilo·watt·sec·hr)

=      1.08 x 10⁷ joules .

Now to find the inductance:

E  =  (1/2) (inductance) (current)²

(1.08 x 10⁷ joules) = (1/2) (inductance) (300 Amp)²

(2.16 x10⁷ joules) =  (inductance) (300 Amp)²

Inductance =  (2.16 x10⁷ joules) / (300 Amp)²

=   2.16 x10⁷ / 90,000        Henrys

I get        240 Henrys .

This is a big inductance.  Possibly the size of your house.
To get a big inductance, you want to wind the coil
with a huge number of turns of very fine wire, in
a small space.
In this case, however, if you plan on running 300A through
your coil, it’ll have to be wound with a very thick conductor …
like maybe 1/4-inch solid copper wire, or even copper tubing,
You have competing requirements.
There are cheaper, easier, better ways to store 3 kWh of energy.
In fact, a quick back-of-the-napkin calculation says that
3 or 4 car batteries will do the job nicely.

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## Which excerpt shows logos? A. “Next thing he knew, Newsome was being marched into a live lineup at the police station . . .” B. “Newsome and Emerson didn’t even look alike. Newsome was nearly three inches taller. Newsome had a mole on his nose. Emerson didn’t.” C. “Thanks to a generation’s worth of research, we know an awful lot about the fickleness of memory.” D. “Still, the practice draws plenty of resistance from police and prosecutors who worry that . . . police departments with small staffs will have trouble finding someone who is unfamiliar with a case . . .”

a. While a metaphor is limited in length, an extended metaphor is developed over the course of a poem.

Explanation:

In general, a metaphor is a figure of speech that asserts that one element (person, animal, thing, quality, event, etc.) is similar to another element that in reality, or literally speaking, are not related in any way. While a metaphor is limited in length, an extended metaphor is developed over the course of a poem or throughout a series of sentences in a paragraph

For example, “A dream itself is but a shadow” is a metaphor, its length is limited. And one example of a extended metaphor can be understood with the following poem “Hope is the Thing with Feathers” by Emily Dickinson:

Hope is the thing with feathers

That perches in the soul,

And sings the tune – without words,

And never stops at all,

And the sweetest in the gale is heard;

And sore must be the store

That could abash the little bird

That kept so many warm.

I’ve heard it in the chilliest land,

And on the strangest sea;

Yet, never, in extremity,

It asked a crumb of me.