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12345 [234]
3 years ago
5

Use the drop-down menus to complete the statement about Earth’s magnetism.

Physics
2 answers:
Rufina [12.5K]3 years ago
6 0

Answer:

core, iron, churning

Explanation:

Nataly [62]3 years ago
5 0

Answer:

The Earth's magnetism is generated in the core, which is composed of iron that is constantly churning

Explanation:

Magnetic fields are produced by charges in motion, therefore by currents.

The outer core of the Earth consists mainly of melted iron that is in constant motion. This iron in motion actually acts as a giant current, and therefore it is responsible for the creation of the Earth's magnetic field.

The magnetic field of the Earth is very weak, in fact its magnitude is on average between 25 and 65 microtesla (for comparison, normal magnets can even produce magnetic fields of a few millitesla).

However, its role is very important for the Earth: in fact, it provides a shield that blocks most of the harmful radiation coming from the Sun.

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An object's buoyant force and weight mean the same thing.<br><br>A. True<br><br>B. False​
german

Answer:

False

Explanation:

No. The buoyant force on an object is the portion of its weight that appears to vanish

when the object is in any fluid (could be either a liquid or a gas).

If the object happens to float in a particular fluid, then the buoyant force at that moment

is equal to the object's weight.

Notice that the buoyant force on an object will be different in different fluids.

6 0
3 years ago
this is energy that is transferred by the movement of electrons through a conductor the electrons create circuit
Paha777 [63]
The correct answer for this question is this one: "Potential Energy." 
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3 years ago
A box of weight 20N rests on a horizontal floor. A maximum horizontal force of 6N is required to move the box along the floor .I
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5 0
3 years ago
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A particle whose speed is 50 m/sec moves along the line from A(2,1) to B (9,25)
WINSTONCH [101]

First, calculate for the distance between the given points A and B by using the equation,

<span>                                                D = sqrt ((x2 – x1)2 + (y2 – y1)2)</span>

 

Substitute the known values:

<span>                                                D = sqrt((9 – 2)2 + (25 – 1)2)</span>

<span>                                                D = 25 m</span>

 

I assume the unknown here is the time it would require for the particle to move from point A to B. This can be answered by dividing the calculated distance by the speed given above.

<span>                                                t = (25 m)/ (50 m/s) = 0.5 s</span>

 

<span>Thus, it will take 0.5s for the particle to complete the route. </span>

3 0
3 years ago
The diagram below shows a light ray from a pencil hitting a mirror.
max2010maxim [7]

Answer:

1

Explanation:

Its 1 since the shape of it is more downwards which results the reflection going downwards.

4 0
3 years ago
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