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atroni [7]
1 year ago
11

Why do the stars appear to move across the night sky?

Chemistry
2 answers:
DaniilM [7]1 year ago
5 0

Answer:

The motion is due to the Earth's rotation.

Explanation:

dmitriy555 [2]1 year ago
5 0

Answer:

The stars arent moving, we are.

Explanation:

The rotational movement of the Earth is what makes the star appear as if moving from the east to the west in the sky, as the planet rotates with an axis pointed towards the direction of our/the North Star.

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A bowling ball is let go from a height of 30 cm. What is the velocity of the
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2 years ago
what is the difference between the number of electrons in an atom of selenium, Se and the number of electrons in an atom of alum
ELEN [110]

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3 years ago
What type of organic molecule comprises the majority of a potato?
vladimir1956 [14]
Your answer should be Polysaccharides

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8 0
3 years ago
Lead has a density of 11.4 g/cm^3. What is the density in kilograms per cubic meter?
Vikentia [17]

The density in kg/m³ = 1.14 x 10⁴

<h3>Further explanation  </h3>

Density is a quantity derived from the mass and volume  

Density is the ratio of mass per unit volume  

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of density  

The unit of density can be expressed in g/cm³ or kg/m³  

Density formula:  

\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}

ρ = density , g/cm³ or kg/m³  

m = mass  , g or kg

v = volume  , cm³ or m³  

A density of Lead : ρ = 11.4 g/cm³

the density in kg/m³ :

\tt 11.4~\dfrac{g}{cm^3}\times \dfrac{kg}{10^3~g}\times \dfrac{cm^3}{10^{-6}~m^3}=\boxed{\bold{1.14\times 10^4~\dfrac{kg}{m^3}}}

8 0
3 years ago
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