Categories

## If a rectangular area is rotated in a uniform electric field from the position where the maximum electric flux goes through it to an orientation where only half the flux goes through it, what has been the angle of rotation?

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### Answered by answersmine AT 22/10/2019 – 02:27 AM

With a uniform electric field, flux go along parallel paths, then flux is therefore proportional to the cosine of the angle rotated.
0 degree rotation => cos(0)=1 => 100% of flux.
60 degrees rotation => cos(60) => 0.5  => how many % of flux?

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Categories

## Which excerpt from The Great Gatsby best indicates that Nick is not fully content with his life? He didn’t say any more, but we’ve always been unusually communicative in a reserved way, and I understood that he meant a great deal more than that. Father agreed to finance me for a year, and after various delays I came East, permanently, I thought, in the spring of twenty-two. Instead of being the warm center of the world, the Middle West now seemed like the ragged edge of the universe—so I decided to go East and learn the bond business. I had a dog—at least I had him for a few days until he ran away—and an old Dodge and a Finnish woman, who made my bed and cooked breakfast and muttered Finnish wisdom to herself over the electric stove.

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Here are a few pointers; hope this is useful)

Ovation-by definition- is show of appreciation from an audience, for a person’s accomplishments or flaw.

“Everyone deserves a standing ovation because we all overcometh the world.”

A person’s accomplishment could be how they made a positive change in this world, strong leadership- that makes them a effective leader or simply helping others. A person’s flaw- mistakes in life, sin or even guilt should also be considered an appreciation- an ovation for representing mankind’s flaw and that humanity makes mistakes, fulfilling at least one deadly sin such as greed, lust, selfishness etc.

Thus, regardless of a person’s achievement or flaw- a person deserves an applause for, not the least, living in this society and this world that we are all living together and dying together.

That was just the introduction.. the best part is yet to come.. now it’s your turn!!

Here are other pointers to talk about in your essay:

Shakespeare’s famous line “All the World’s a stage. That agrees with your line: “Everybody deserves a standing ovation…”

Shakespeare explains that men and women are like players: they live, and die, some being celebrated and some forever living in solitude till their death. Shakespeare states the world is a “stage” which symbolizes that mankind is in its peak. The world is changing everyday: little by little and humanity is falling behind.
Due to our world turning into machinery: factories, an automotive future: where humans only job to live (entrance) and to die (exit) the famous humans remembered and the flawed not recalled.

This is according to Shakespeare’s imagery.

I don’t know what grade your in, but I think simplifying Shakespeare’s word of mouth in your essay would be handy and useful as it has strong references of your quote, and agrees strongly in your essay.

Hope this helps 🙂

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## Two point particles, one with charge +8 × 10–9 c and the other with charge–2 × 10–9 c, are separated by 4 m. the electric field midway between them is:

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Answer:

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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## Gaussian surfaces a and b enclose the same positive point charge. the area of surface a is two times larger than that of surface b. how does the total electric flux through the two surfaces compare? gaussian surfaces a and b enclose the same positive point charge. the area of surface a is two times larger than that of surface b. how does the total electric flux through the two surfaces compare? the total electric flux through surface a is four times larger than that through surface b. the total electric flux through surface b is eight times larger than that through surface a. the total electric flux through surface a is eight times larger than that through surface b. the total electric flux through surface b is four times larger than that through surface a. the total electric flux through the two surfaces is equal.

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Answer:

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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## A 0.70-m radius cylindrical region contains a uniform electric field that is parallel to the axis and is increasing at the rate 5.0 × 1012 v/m?s. the magnetic field at a point 1.2 m from the axis has a magnitude of:

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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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## Natalia began to draw a diagram to compare bases and acids. Which label should be written in the area marked X? conducts electric current produces OH– ions tastes sour reacts with carbonates

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Answer:

1) Water has very high specific heat.

2) It expands when it freezes

3) ability to dissolve in ionic substances

4) Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid.

Explanation:

1) Water molecules due to their high specific heat , undergo relatively less increase in temperature after absorbing heat. So they prevent their adjoining area to experience sharp increase in temperature.

2) Water is an example which expands on freezing. In it , large spaces are left between molecules when it cools. It happens because hydrogen bonds prevent any two molecules to come very close thereby  creating gaps. This gap is filled up when ice melts , which results in overall reduction in volume of water.

3) Uneven distribution of charge results in water molecules becoming polar in nature . A polar substance  can be dissolved in polar solvents only.

4) It is due to property of surface tension. Property  of surface tension results due to molecules of water near the surface experiencing a  net downward  force due to hydrogen bonds . It is due to fewer hydrogen bonds made by them.

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## If the electric flux through a closed surface is proportional to the enclosed charge, what is the gravitational flux proportional to?

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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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Categories

## When an electron moves 2.5 m in the direction of an electric field, the change in electrical potential energy of the electron is 8×10-17j. what is the strength of the electric field that causes the change in potential energy?

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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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## According to your textbook, electric field lines are sometimes called __________. Select one: a. push lines b. lines of force c. electric lines

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Since a tiny tender child of four,
There’s nothing that I dreamt of more,
Than to jump aboard a great big ship,
A telescope, a map, a sword, by my hip,
To feel the sea breeze in my hair,
To stroke my parrot on the wood chair,
To be bold and brave and happy as can be,
To trek and travel and sail the seven seas.

8 lines. Rhyme scheme aabbccdd. If I managed to write that in about 4 minutes, you could write something much better and longer in like 30 minutes. You can use my rubbish poem as inspiration lol. Good luck X

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## Chelsa manufacturing co.’s static budget at 5,000 units of production includes \$40,000 for direct labor and \$5,000 for variable electric power. total fixed costs are \$23,000. at 8,000 units of production, a flexible budget would show a. variable and fixed costs totaling \$107,000 b. variable costs of \$64,000, and \$28,000 of fixed costs c. variable costs of \$64,000, and \$23,000 of fixed costs d. variable costs of \$72,000, and \$23,000 of fixed costs

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The Contribution Margin per unit (CM) can be calculated
from the difference of Selling Price per unit (SP) and Total Expenses per unit
(TE).

First, let’s calculate the value of SP:

SP = Sales / Units sold

SP = \$1,043,400 / 22,200 units sold

SP = \$47

Second, calculate all expenses:

Direct materials per unit = \$234,948 / 27,970 units
manufactured = \$8.4

Direct labor per unit = \$131,459 / 27,970 units
manufactured = \$4.7

Variable manufacturing overhead per unit = \$240,542 / 27,970
units manufactured = \$8.6

Variable selling expenses per unit = \$113,220 / 22,200
units sold = \$5.1

TE = \$26.8

Therefore the CM is:

CM = SP – TE

CM = \$47 – \$26.8

CM = \$20.2 per unit

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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

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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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Categories

## A device that initiates and maintains a controlled nuclear fission chain reaction to produce energy for electricity is a a. geothermal nuclear apparatus. b. nuclear combustion chamber. c. nuclear reactor. d. nuclear electric engine. e. electrical fusion device

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Refer to the figure shown below.

Charge q₁ = 0.5 nC = 0.5×10⁻⁹ C
Charge q₂ = 8 nC = 8×10⁻⁹ C
d = 1.2 m, the distance between the two charges.

x is the distance between the two charges, measured from the charge q₁.

From Coulomb’s Law,
The electric field generated along x by q₁ is
E₁ = k(q₁/x²)
The electric field generated along x by q₂ is
E₂ = -k[q₂/(d-x)²]
where
k = 8.988×10⁹ (N-m²)/C² is the Coulomb constant/

When the electric field along x is zero, then
E₁ + E₂ = 0
k[q₁/x² – q₂/(d-x)²] = 0

That is,
0.5/x² = 8/(1.2 – x)²
8x² = 0.5(1.2 – x)²
16x² = 1.44 – 2.4x + x²
15x² + 2.4x – 1.44 = 0

Solve with the quadratic formula.
x = (1/30)*[-2.4 +/- √(5.76 + 86.4)]
= 0.24 or -0.4 m

Reject the negative answer to obtain
x = 0.24 m
d-x = 0.96 m

Answer
The electric field is zero between the charges so that
(a) It is at 0.24 m from the 0.5 nC charge, and
(b) It is at 0.96 m from the 8 nC charge.

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Categories

## (Informational Response) Review the excerpt above. Answer the following question in a well-developed paragraph. How does the excerpt prepare the reader for the last line? What details and descriptions prepare the reader for the change in tone and mood in that final line? **Be sure to re-state the question in your topic sentence and use specific examples and details from the story to support your answers. Proofread your work before submitting. Chapter I, The Beginning of Things They were not railway children to begin with. I don’t suppose they had ever thought about railways except as a means of getting to Maskelyne and Cook’s, the Pantomime, Zoological Gardens, and Madame Tussaud’s. They were just ordinary suburban children, and they lived with their Father and Mother in an ordinary red-brick-fronted villa, with coloured glass in the front door, a tiled passage that was called a hall, a bath-room with hot and cold water, electric bells, French windows, and a good deal of white paint, and ‘every modern convenience’, as the house-agents say. There were three of them. Roberta was the eldest. Of course, Mothers never have favourites, but if their Mother HAD had a favourite, it might have been Roberta. Next came Peter, who wished to be an Engineer when he grew up; and the youngest was Phyllis, who meant extremely well. Mother did not spend all her time in paying dull calls to dull ladies, and sitting dully at home waiting for dull ladies to pay calls to her. She was almost always there, ready to play with the children, and read to them, and help them to do their home-lessons. Besides this she used to write stories for them while they were at school, and read them aloud after tea, and she always made up funny pieces of poetry for their birthdays and for other great occasions, such as the christening of the new kittens, or the refurnishing of the doll’s house, or the time when they were getting over the mumps. These three lucky children always had everything they needed: pretty clothes, good fires, a lovely nursery with heaps of toys, and a Mother Goose wall-paper. They had a kind and merry nursemaid, and a dog who was called James, and who was their very own. They also had a Father who was just perfect—never cross, never unjust, and always ready for a game—at least, if at any time he was NOT ready, he always had an excellent reason for it, and explained the reason to the children so interestingly and funnily that they felt sure he couldn’t help himself. You will think that they ought to have been very happy. And so they were, but they did not know HOW happy till the pretty life in the Red Villa was over and done with, and they had to live a very different life indeed. The dreadful change came quite suddenly.

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Answer:

D) I drove them, all three wailing, to the ships,

Explanation:

Odysseus chooses to do battle with the Greeks despite the fact that he wouldn’t like to leave his wife and child. Being a decent pioneer he will be, he sets aside his own wants and unselfishly offers himself to fighting for his nation.

During the war with Troy, he is splendid in fighting. He thinks of the possibility of the Trojan Horse. At the point when the Trojans open their doors and get the Trojan Horse, Odysseus and the Greeks get inside the city of Troy. Odysseus drives his men to triumph.

During his trek home from the war, Odysseus drives his men through numerous obstructions. He is brave even with beasts and hazardous ladies, for example, Circe and Calypso. Odysseus never surrenders in attempting to protect his men. Despite the fact that he loses men, he is crushed by the way that he couldn’t spare every one of his men.

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Categories

## Which statement best defines an electric field?

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Answer : The electric potential difference through which the proton moved, to the nearest whole number is, 25 V

Solution :

Potential difference : It is defined as the work done by the unit charge.

Formula used : where, = electric potential difference = electric potential energy

q = charge on  proton

Now put all the given values in the above formula, we get the value of electric potential difference. Therefore, the electric potential difference through which the proton moved, to the nearest whole number is, 25 V

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Categories

## Minor Electric has received a special one-time order for 1,500 light fixtures (units) at \$5 per unit. Minor currently produces and sells 7,500 units at \$6.00 each. This level represents 75% of its capacity. Production costs for these units are \$4.50 per unit, which includes \$3.00 variable cost and \$1.50 fixed cost. To produce the special order, a new machine needs to be purchased at a cost of \$1,000 with a zero salvage value. Management expects no other changes in costs as a result of the additional production. Should the company accept the special order?

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The actual cash received from cash sales was \$14,356 and the amount indicated by the cash register total was \$14290

a.what is the amount deposited in the bank for the day’s sales?

14,356
Because this is the amount which is actually received by sales

b.What is amount recorded for the day’s sales?

14,290
Because this is the amount which has been recorded in the cash register.

c.How should the difference be recorded?

Dr Cash 14,356
Cr Over/Short 66
Cr Sales 14,290

d. If a cashier is consistently over or short what action should be taken?

First of all we need to find out that whether the cashier is genuinely making mistakes or there is a case of theft.There would be some close monitoring. If they are just mistakes, maybe some extra mentoring in cash handling would help.

E5-18

Part a and b are informational and thus we dont have to do anything with them.

Part c and d are reconciling terms.

Parts e and f needs entries to adjust the company’s books. For e there needs to be a debit to cash for the incorrect amount and a credit for the correct amount. For f there needs to be a credit to cash.

E.
(Dr) Cash in bank \$540
(Cr) Accounts payable \$540
\$710 – \$170

F.
(Dr) Bank charges \$50
(Cr) Cash in bank \$50

Bank reconciliation:
Cash balance per book \$24,010
Add: error \$540
Less: Debit memo \$50
Adjusted book balance \$24,500

Cash balance per bank \$22,750
Add: Deposits in transit \$9,100
Less: Outstanding checks \$7,350
Adjusted bank balance \$24,500

Hope you get it.

Get back to me in case you have any doubts.
I would be happy to help.

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Categories

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## Answer:

Option: a is the correct answer.

a)  all of the points

## Step-by-step explanation:

We know that if a figure or a line lie in a plane then all the points that lie on that figure also lie in the same plane.

i.e. the points are said to be co-planar points.

Ray–

Ray is a line which originates at a point and it goes to infinity from the other end.

Hence, If a ray lays in a plane, then all the points that are on that ray also lie in the same plane.

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Categories

## Static discharge differs from electric current because static discharge is described by which of the following? a involves the movement of ions as well as electrons b results because a force is exerted on electrons c lasts for only a fraction of a second is the flow of electrons

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I’m so glad you asked !

1).  If the bathtub is big enough to accommodate the length, width, and draft
of the ship, and the tub is full of water, then the ship floats in the tub.
(Strange as it may seem, the same can be said of the planet Saturn.)

2).  Momentum is conserved.  ===> The total momentum of (car + bug)
is the same before and after the collision.  ===> The impulse imparted
to the car is equal to the impulse imparted to the bug.  ===> F₁·t = F₂·t .
===> For every action, there is an equal and opposite reaction.
===> The force exerted on the bug is equal to the force exerted on the car.
===> The bug sustains more damage than the car does.

3).  This simple-sounding question is actually a very complicated question.
… You said “an electron”.  Do you mean the same electron ?  Or do you mean
the electric current ?
… The ‘drift velocity’ of the same electron is only millimeters per hour.
… If you’re plugged into a common AC wall socket, then a single electron is
pulled this way, then that way, 60 times a second, and never gets anywhere.
… Electric current flows by means of one electron bumping the next one,
which bumps the next one, which bumps the next one, which bumps the
next one, and so on all along the wire.  So the EFFECT shows up at the
other end of the wire much faster than any single electron gets there.
… That speed depends on the thickness and composition of the wire,
the thickness and composition of the insulation around the wire, the
distance between the two wires in the power cord, and some other things.
It can range anywhere from 45% to 99% of the speed of light.

— If your power cord is 5 feet long and the propagation velocity is 0.99c,
then the answer to your question is  0.000 000 005 13 second.

— If your power cord is 10 feet long and the propagation velocity is 0.45c,
then the answer to your question is   0.000 000 022 6 second.

The actual situation is somewhere in that range.

4).  When you toss a ball or a stone straight up, it goes up for a while
as it slows down, then turns around, then falls for a while as it speeds up.
It’s fairly easy to prove that it returns to your hand with the same speed
as you tossed it.
So if you toss two stones, with the same speed, from the same height,
one up and one down, then the one that went up and came back has the
same speed as it passes your hand going down.
They both hit the ground with the same speed.
But there IS one difference:  The one you tossed UP hits the ground LATER !

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Categories

## Thermal energy is the energy associated with electric fields. being stored in chemical bonds. the pull of gravity. temperature.

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Answer: (4)electrical conductivity

Explanation:

Given : 1.0 mole of and 1.0 mole of 1 mole of and 1.0 mole of ,. both have ions.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Thus both and have same empirical formula.

Both and have same atoms ad thus have same gram formula mass.

Electrolyte is a substance which dissociates into ions when dissolved in water and thus is able to conduct electric current through them.
Compounds in solid form does not conduct electricity due to the absence of free ions.

Bus as solid compounds do not dissociate, would not produce ions and thus have no electrical conductivity. will have electrical conductivity due to presence of ions in molten form.

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## Discuss the relationship between electric and magnetic fields

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The answer is amensalism.

Amensalism is a relationship between two population in which only one of them suffers, and the other one is not affected. Here, a moose is not affected, it just passes by, it is not negatively or positively affected. However, the meadow grass is negatively affected because it is often trampled. So, we have the not affected moose and the meadow grass which suffers. Therefore, this is example of amensalism.

In commensalism one of those species would benefit, and the other one would not be not affected. In parasitism one of those species would benefit at the expense of the host organism. Also, this is not interspecific competition since interspecific means inside the species, and the moose and the meadow grass are not the same species.

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