4 years ago

What is the primary visible color of an emission nebula?

1 answer:

7 0

In emission nebulae, there are interstellar clouds of hydrogen, which glow red because of the intense radiation of hot stars inside the nebula

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3 years ago

How many electrons make up a charge of - 30.0 μc?

Ymorist [56]

Each electron has a charge of

$q=-1.6 \cdot 10^{-19}C$

In this problem, the total charge is

$Q=-30.0 \mu C=-30.0 \cdot 10^{-6} C$

Therefore, the number of electrons contained in this total charge will be given by the total charge divided by the charge of a single electron:

$N=\frac{Q}{q}=\frac{-30.0 \cdot 10^{-6} C}{-1.6 \cdot 10^{-19} C}=1.88 \cdot 10^{14}$

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3 years ago

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musickatia [10]

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skelet666 [1.2K]

Answer:

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