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Kazeer [188]
3 years ago
11

Explain the geocentric model and the heliocentric model in science.

Geography
1 answer:
Troyanec [42]3 years ago
8 0

Answer:

According to geocentric model Earth is the center of universe, while according to the heliocentric model Sun is the center of universe, and that Earth and all other planets are revolving around the Sun.

Explanation:

Geocentric model was dominant since the period of Ancient Greece until the 16th Century. Ptolemy was the Greek scientist that proclaimed the geocentric model, that was supported in the Middle Ages by the church.

Later Copernicus, Galileo and many other scientist proved this theory to be false, and they presented their heliocentric model.

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Explanation:

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Let O, P, and Q be distinct collinear points with PQ=3. Let P′ and Q′ be the images of points P and Q under dilation from point
horsena [70]

Given:

O, P, and Q be distinct collinear points with PQ=3.

P′ and Q′ be the images of points P and Q under dilation from point O with scale factor 4.

To find:

The length of the image segment P'Q'.

Solution:

We know that,

\text{Scale factor}=\dfrac{\text{Side length of image}}{\text{Corresponding side of original figure}}

P′ and Q′ be the images of points P and Q under dilation from point O with scale factor 4. So, Segment P'Q' is the image of segment PQ and the scale factor is 4.

4=\dfrac{P'Q'}{PQ}

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4=\dfrac{P'Q'}{3}

Multiply both sides by 3.

4\times 3=P'Q'

12=P'Q'

Therefore, the length of the image segment P'Q' is 12 units.

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Answer:

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