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Amiraneli [1.4K]
3 years ago
10

Why is a sidereal day shorter than a solar day on earth?

Biology
1 answer:
Nadusha1986 [10]3 years ago
6 0
The Sidereal Day is 4 minutes shorter than the Mean Solar Day, because the rotation of the Earth on its axis, and the orbiting of the Earth around the Sun, are both counterclockwise, as viewed from above (or north of) the Ecliptic Plane. See planetary retrograde motion for an example of the opposite situation.

The reason that the Solar Day varies around the Mean Solar Day is that the Earth moves at different speeds through its orbit around the Sun. This is in keeping with Kepler's Second Law of Planetary Motion.

Please note that the Mean Solar Day changes over a long period of time, due to the slowing of the rotation of the Earth due to tidal forces exerted on the Earth primarily by the Moon. For example, the Mean Solar Day was about 23 hours about 250 million years ago.
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Why is the air colder farther from the earth?
Mandarinka [93]

Answer:

Why is the air colder farther from the earth,you ask ?its easy

Explanation:

A pretty basic answer is that the farther away you get from the earth, the thinner and thinner  the atmosphere gets. The total heat content of a system is directly related to the amount of matter present, so it gets cooler and cooler at higher elevations.

5 0
3 years ago
Which of the following describes a similarity and a difference between isotopes of an element?
jarptica [38.1K]
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so the statement that best describe a similarity is 
<span> same atomic number; different mass number
</span>so correct option is C 
hope it helps

5 0
3 years ago
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attashe74 [19]

Answer:

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Explanation:

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3 0
3 years ago
Imagine that a researcher is examining the positioning of synaptic clefts in a region of the nervous system of adult mice. In on
Setler [38]
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That’s the answer
4 0
3 years ago
What are the two major anatomical subdivisions of the nervous system?
Kitty [74]

Answer: The nervous system has two main parts:

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The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

Explanation:

4 0
3 years ago
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