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maxonik [38]
3 years ago
12

specific curve; the closed path taken by a point that moves in such a way that the sum of its distances from two fixed points (f

oci) is constant; for a satellite orbiting a planet, the center of the planet is at one focus and the other focus could be inside or outside the planet is _______
Social Studies
1 answer:
Kryger [21]3 years ago
7 0

Answer:

An ellipse is a specific curve: the closed path taken by a point that moves in such a way that the sum of its distance from two fixed points (called foci) is constant. For a satellite orbiting a planet, one focus is at the center of planet; the other focus could be internal or external to the planet. It is called an ellipse.

Explanation:

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Explanation:

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The fact that you were walking with your friend at night and weren't able to see her face but her face became more visible as time went by is an example of a. contrast gain: your eyes become more sensitive to the available contrast

<h3>What is contrast gain?</h3>

Contrast gain refers to the method by which the eyes adjust to the brightness around them as time goes on to allow us to see more clearly.

It works by the pupils dilating more to allow for more light to come into the eyes. This would then allow the eyes to focus on the image more clearly based on the given light it picks up.

You weren't able to see your friend at first because the pupils hadn't dilated but as soon as they began to, more light came into the eye in the process of contrast gain. As this happened, you were able to see her more clearly.

In conclusion, option A is correct.

Options for this question include:

  • a. contrast gain: your eyes become more sensitive to the available contrast
  • b. evolution: your eye physically changes to allow in more light
  • c. photons: you are able to see in direct proportion to the number of visible photons
  • d. social effects: your friend has moved closer

Find out more on contrast gain at brainly.com/question/798280

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