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kicyunya [14]
3 years ago
5

The number of dots near hydrogen and helium are the same as in the energy level chart. Why?

Physics
2 answers:
Kipish [7]3 years ago
8 0

Answer:

Because the electrons they have are valence electrons.

Explanation:

Hope this helps

QveST [7]3 years ago
8 0
The electrons they have are valence electrons
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A 40-cm-long tube has a 40-cm-long insert that can be pulled in and out. A vibrating tuning fork is held next to the tube. As th
Umnica [9.8K]

Answer:

The frequency of the tuning is 1.065 kHz

Explanation:

Given that,

Length of tube = 40 cm

We need to calculate the difference between each of the lengths

Using formula for length

\Delta L=L_{2}-L_{1}

\Delta L=74.7-58.6

\Delta L=16.1\ m

For an open-open tube,

We need to calculate the fundamental wavelength

Using formula of wavelength

\lambda=2\Delta L

Put the value into the formula

\lambda=2\times16.1

\lambda=32.2\ cm

We need to calculate the frequency of the tuning

Using formula of frequency

f=\dfrac{v}{\lambda}

Put the value into the formula

f=\dfrac{343}{32.2\times10^{-2}}

f=1065.2\ Hz

f=1.065\ kHz

Hence, The frequency of the tuning is 1.065 kHz

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2 years ago
You are riding a bicycle home from school. You average 5 meters per second and you are headed south.
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