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atroni [7]
2 years ago
11

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

Chemistry
2 answers:
DaniilM [7]2 years ago
5 0

Answer:

The motion is due to the Earth's rotation.

Explanation:

dmitriy555 [2]2 years 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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What is the KE of 750 kg car moving at 25 m/s?
Ymorist [56]

Answer: 234,375 J=234.375 kJ

Explanation:

K= m*V²/2

K=750kg*625m²/s²/2=234375 J

8 0
3 years ago
3. How many atoms in 3.91 moles of sodium?
Gala2k [10]

Answer:

Explanation:

The formula for sodium is Na. It does not form a molecule in some way.

1 mol Na = 6.02*10^23 atoms

3.91 mol = x                                    Cross multiply

x = 3.91 * 6.02 * 10^23

x = 23.65 * 10^23

x = 2.365 * 10^24

Scientific notation is always expressed as a number 1 ≤ x < 10

3 0
3 years ago
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gizmo_the_mogwai [7]

Answer: The water cycle shows the continuous movement of water within the Earth and atmosphere. ... Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation).

Explanation:

8 0
3 years ago
Read 2 more answers
Differentiate between the following terms.
Lorico [155]

Answer:

a.reducing agent reduces other elements and make itself oxidized

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Explanation:

7 0
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How many moles are in 175L of SO2 gas at STP
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12 moles are in the 175L of SO2 gas at STP
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