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Mrac [35]
3 years ago
14

Explain the origin of the magnitude designation for determining the brightness of stars. Why does it seem to go backward, with s

maller numbers indicating brighter stars?
Physics
1 answer:
Mashcka [7]3 years ago
5 0

Answer:

Hipparchus was an ancient Greek who classified stars based on the brightness in 129 B.C. He grouped the brightest stars and ranked them 1 (first magnitude) and dimmest stars as 6 (sixth magnitude). Thus, the smaller numbers indicated brighter stars. Now, the scale extends in negative axis as well. More the negative number, brighter is the star. For example, Sun has magnitude -26.74.

This the apparent magnitude which means the classification is based on the brightness of the star as it appears from the Earth.

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The force on each balloon is 2×10^−3 N.

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So,

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3 0
1 year ago
What is general relativity in easy terms?
kirza4 [7]
General relativity is the theory of space and time. This was theory was found by Albert Einstein 
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The kinetic energy of a baseball that with a mass of 0.140kg is 7 J. What is the baseballs velocity?
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Answer:

10 m/s

Explanation:

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We have to make v the subject so we should rearrange the equation

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3 0
1 year ago
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