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tatyana61 [14]
3 years ago
13

Why is a small crescent of light often observed on the moon when it is exactly in the new phase?

Physics
1 answer:
Lady bird [3.3K]3 years ago
5 0
Este suceso se llama Plenilunio. Es cuando la tierra esta en medio del sol y la luna.
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Suppose a star has the same apparent brightness as Alpha Centauri A ( 2.7×10−8watt/m2 ) but is located at a distance of 300 ligh
iragen [17]

For  a star that has the same apparent brightness as Alpha Centauri A ( 2.7×10−8watt/m2 is mathematically given as

L=2.7*10^30w

<h3> What is its luminosity?</h3>

Generally, the equation for the luminosity  is mathematically given as

L=4*\pi^2*b

Therefore

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L=2.7*10^30

In conclusion, the luminosity

L=2.7*10^30w

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6 0
1 year ago
Galileo held that measurements of time were _____ and that measurements of distance were ______. absolute; relative
DanielleElmas [232]

Answer:

option A

Explanation:

the correct answer is option A

The given blanks in the question will be filled with Absolute and relative receptively.

time is absolute means the numerical representation of time example 12:00 pm is absolute time.

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6 0
2 years ago
Item 8
Elza [17]

Answer:isotopes

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8 0
3 years ago
Which of the following is NOT true of fusion?
Gekata [30.6K]
C., used in power plants I think. 
6 0
3 years ago
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Effectus [21]

Answer:

id say D

Explanation:

because its the only answer that has to do with colors and visable light

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I am sorry if i am wrong, let me know tho!

8 0
3 years ago
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