A,B,C, or D?

__________

Answer:

Permanent Magnets and Electromagnets: What are the Differences? A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. ... An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it.

Step-by-step explanation:

Electromagnets differ from regular magnets in that they require an electric current to generate a magnetic field.

Regular magnets, also known as permanent magnets, possess an inherent magnetic field due to the alignment of their atomic or molecular structure. They do not require an external power source.

On the other hand, electromagnets are made by wrapping a coil of wire around a magnetic core and passing an electric current through the wire. The electric current creates a magnetic field, and the strength of the magnetic field can be controlled by varying the current.

One key advantage of electromagnets is their ability to be turned on and off by controlling the electric current. This feature allows for a wide range of applications, such as in electric motors, generators, speakers, magnetic levitation systems, and more, where the magnetic field needs to be controlled or modulated. In contrast, regular magnets have a constant magnetic field that cannot be easily manipulated.

To know more about Electromagnets:

https://brainly.com/question/31038220

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Answer:

Step-by-step explanation:

It seems the coordinates given are incorrect.

It should read:

This reflects the rule:

Correct choice is B

Answer:

B: 1/3

Step-by-step explanation:

(x,y) = (1/3x,1/3y)

Volume = (base area x heigh)/3

base area = 160m x 160m

base area = 25600 m²

Volume = (25600 m² x 91 m) / 3

Volume = 776533.333 m³

the volume is 776533.333 m³

Answer: $863.95 I do believe

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]x^{2} x^{2} \sqrt{x} \neq \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right][/tex]

Answer:

2

Step-by-step explanation:

the distance around a circle

Answer:

(-2,5)

Step-by-step explanation:

because 2 units to left of the y axis makes it a negative and it makes it on the z axis so you get negative 2 then 5 units above the x axis gets just 5 so that's how you get (-2,5)

[tex] = (2 {n}^{2} - 5n - 6) + ( - {n}^{2} - 3n + 11)[/tex]

[tex] = 2 {n}^{2} - 5n - 6 - {n}^{2} - 3n + 11[/tex]

[tex] = 2 {n}^{2} - {n}^{2} - 5n - 3n - 6 + 11[/tex]

= (n²-8n+5)→Answer

I hope that it answer your question...

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Answer:

Evan will have to walk 7 blocks

Step-by-step explanation:

Evan will have to walk 7 blocks because he gets $5 from picking up the dog, so subtract 5 from 26 to get 21. Next, you want to divide 21 by 3 to get 7 because $3 a block and you need to find how many blocks he needs to do.

Answer:

Step-by-step explanation:

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.

Answer:

NO

Step-by-step explanation:

Answer:

153

Step-by-step explanation:

break it up in pieces 6x12 + 4x4 + 13x5 = 153

Answer:

A

Step-by-step explanation:

I would say 0

Answer:

I think the answer is A........

Answer:

50.8 degrees

Step-by-step explanation:

cos(x)=12/19

Answer:

The fourth choice, Pink, is the correct answer.

Step-by-step explanation:

The first two options intersect, therefore the intersection is the solution. The third set of lines may seem like one line, however since we are dealing with two linear equations, it can be presumed that those are two lines on top of one another, therefore it has infinite solutions. The last option remaining is Pink, in which the lines are parallel and therefore will never intersect, making them have no solution.

Answer:

-15 + -3 = -18

Rob owes his father $18.

Step-by-step explanation:

Rob has to pay back the same amount of money that he took. Since he took 15 dollars, he has to give back 15 dollars which makes the 15 negative. The same goes for the 3 in the equation.

To find out the total amount Rob has to pay back, we have to add -15 and -3, which is -18.

Answer:

T (3 , -6)   O ( -6 , -4) and M (-9 , 6)

Step-by-step explanation:

(x , y) -> (-x , -y)

Answer:

x = -56

Step-by-step explanation:

x4 on both sides to get rid of the fraction, then +20 on both sides to get rid of -20 on the left side, then you get x = -56

Answer:

I THINK ITS B lmk if I'm wrong

Answer:

3/5

Step-by-step explanation:

We can find ∅ by using the tangent function since we have the opposite and adjacent sides of ∅.

tan(∅)=1/2

tan^-1(tan(∅))=tan^-1(1/2)

∅=26.57

Since we are looking for cos(2∅), then we have cos(2(26.57))=cos(53.14)≈0.6

So the exact value is 3/5

Answer:

7

Step-by-step explanation:

Answer:

sure,ill tryy :)

Answer:

i dont know the answer may be search on chrome

Answer:

17 x 10³

Step-by-step explanation:

Standard form is a way of writing down very large or very small numbers easily. 10³ = 1000, so 4 × 10³ = 4000 . So 4000 can be written as 4 × 10³ . This idea can be used to write even larger numbers down easily in standard form.

Answer:

11

Step-by-step explanation:

2(3)+5

6+5

11

Answer:

11

Step-by-step explanation:

2b+5, when b is 3

substitute 3 into 2b+5

2(3)+5

6+5 =11

Answer:

17

Step-by-step explanation:

20x5=100

85/5=17

Answer:

zda dht5646788975432

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-4-(-5))/(3-0)

m=(-4+5)/3

m=1/3