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Studentka2010 [4]
2 years ago
9

What is needed to create a magnetic field?

Physics
1 answer:
lara [203]2 years ago
6 0

Explanation:

A magnetic field can be created by running electricity through a wire. All magnetic fields are created by moving charged particles. Even the magnet on your fridge is magnetic because it contains electrons that are constantly moving around inside

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Which equation describes the sum of the vectors plotted below?
bearhunter [10]

Equation C describes the sum of the vectors plotted below.

<h3>What is a vector?</h3>

A vector is a quantity or phenomena with magnitude and direction that are independent of one another. The phrase also refers to a quantity's mathematical or geometrical representation.

If no vector can be written as a linear combination of the others, a set of vectors is said to be linearly independent.

The given points from the graph is obtained as;

a = (2,1)

b = (3,-2)

Vector, OA = 2x + y

Vector, AB = x - 3 y

From the triangular lawe of the vector addition;

\rm r=  \vec{OA} +\vec{OB}\\\\\ r= 2x+y+x-3y \\\\ r= 3x-2y

Hence,option C is correct.

To learn more about the vector refer to the link;

brainly.com/question/13322477

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8 0
1 year ago
An instrument is defective for all of the following conditions EXCEPT:_______
NARA [144]

Answer:

I believe its C

6 0
3 years ago
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Hitman42 [59]
The answer is indeed B
4 0
2 years ago
the red arrow shows the direction that wind from the south pole would travel if earth were not spinning. the wind's destination
MissTica

Answer: It should be A or the very left red circle that you can click on

Explanation: Because when the wind is moving downward and the earth is spinning the spot the wind ends up will never be directly down from where it was to begin with

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A car travels 45 km due north and 70 km west. What is the car's displacement?
Elis [28]

Answer:

A

Explanation:

7 0
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