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2 years ago

15

How much brighter is a sun-like star than the reflected light from a planet orbiting around it?.

1 answer:

Digiron [165]2 years ago

6 0

It is about a billion times brighter.

<h3>What is the brightness of a star called?</h3>

A star's apparent magnitude, or how bright it seems to be from Earth, and absolute magnitude, or how brilliant it looks at a standard distance of 32.6 light-years, or 10 parsecs, are words used by astronomers to describe stellar brightness.

<h3>How bright are planets compared to stars?</h3>

Although planets and stars light up the night sky, planets usually appear much brighter than most stars.
Astronomers use astronomical scales to measure the relative brightness of celestial bodies, and many planets fall within the range easily visible to the eye.

To learn more about planets from the given link

brainly.com/question/1286910

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An object with mass 80 kg moved in outer space. When it was at location <7, -34, -7> its speed was 14.0 m/s. A single cons

Sergio [31]

Answer:

W = -2080 J

Explanation:

initial position vector of the object is given as

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similarly final position vector is given as

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now the displacement of the object is given as

$\vec d = \vec r_f - \vec r_i$

now we will have

$\vec d = (12\hat i - 42\hat j - 11\hat k) - (7\hat i - 34\hat j - 7 \hat k)$

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now the force on the object is given as

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so here in order to find the work done

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D It is an animal cell.

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