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wel
3 years ago
5

If the black dot is sound, which direction is the sound in the picture moving? *

Chemistry
2 answers:
Tema [17]3 years ago
6 0

Answer:

Left or up, either one of those

Explanation:

Masteriza [31]3 years ago
6 0

Answer:

isnt the answer RIGHT

Explanation:

You might be interested in
A common radio wavelength observed coming from astronomical objects is 21 cm. What temperature is associated with this radiation
qaws [65]

Answer:

The temperature associated with this radiation is 0.014K.

Explanation:

If we assume that the astronomical object behaves as a black body, the relation between its <em>wavelength</em> and <em>temperature</em> is given by Wien's displacement law.

\lambda_{max}=\frac{b}{T}

where,

λmax is the wavelength at the peak of emission

b is Wien's displacement constant (2.89×10⁻³ m⋅K)

T is the absolute temperature

For a wavelength of 21 cm,

T=\frac{b}{\lambda _{max} } = \frac{2.89 \times 10^{-3} m.K  }{0.21m} =0.014K

8 0
3 years ago
Can y’all help me with this science question plz
elixir [45]
The tree I know is producer
7 0
2 years ago
Chemical changes
Alex777 [14]
The correct answer is that chemical changes form new compounds. Chemical change is a change where the substance changes in identity or form new substances after undergoing a process. On the other hand, a physical change is a change in the properties of matter that does not change the identity of the substance. 
6 0
3 years ago
Air is composed of nitrogen oxygen and based on that information air can be described as
Vilka [71]

Answer:

Air can be described as:  Mass and Mixture of Gases

Mass is defined as how much stuff an object contains - and by stuff, I mean matter, like atoms and molecules. And even though you can't see it, air has a lot of atoms and molecules. Air is a gas (as opposed to a liquid or a solid) and contains about 78% nitrogen, 21% oxygen, and 1% argon.

Explanation:

4 0
3 years ago
The Moon shines white light on Earth. Is the Moon a good blackbody
Hitman42 [59]

Answer:

C.) No, because the Moon reflects most of the Sun's light rather than

absorbing it

Explanation:

:p

8 0
3 years ago
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