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lions [1.4K]
2 years ago
10

How do astronomers observe and learn about celestial objects?

Chemistry
1 answer:
MatroZZZ [7]2 years ago
8 0

Answer:

Astronomers use a number of telescopes sensitive to different parts of the electromagnetic spectrum to study objects in space. Even though all light is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study.

Explanation:

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What is the wavelength of a wave with a<br>velocity of 50 m/s and a frequency of 5 Hz?​
pentagon [3]

Answer:

Wavelength is 10m

Explanation:

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Wavelength = wave velocity / frequency

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8 0
3 years ago
Elements are organized into groups / families according to their physical and chemical properties. Identify the elements that's
Kryger [21]

Answer:

1 valence - Alkali Metals: Li Lithium, Na Sodium, K Potassium

2 valence - Alkaline Earth Metals: Be Beryllium, Mg Magnesium, Ca Calcium

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3 0
3 years ago
Why does a beta particle have an atomic number of -1
Fudgin [204]
I cant entirely tell for now but an article on rodioactivity should solve the problem
6 0
2 years ago
In a chemical process, three bottles of a standard fluid are emptied into a larger container. A study of the individual bottles
Setler79 [48]

Answer:

a

The expected value is = 39 units

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The explanation of this answer is shown on the first uploaded image

5 0
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The Law of Conservation of Matter describes how mass is not lost during a chemical reaction.
weeeeeb [17]

False, it states that matter can be nether created nor destroyed

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Read 2 more answers
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