How does the Solar Nebula theory explain the formation and orbital properties of planets?
What will be an ideal response?
As the gas cloud contracts, it spins faster due to conservation of angular momentum. A bulge forms at the equator, which spreads out and eventually forms concentric rings. Each ring forms a planet. This theory explains the observed orbital properties of the planets. The rings formed at the equator and were rotating in the same direction as the gas cloud. This means the planets will all orbit near the plane of the Sun's equator and in the same direction as the Sun's rotation.
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A.A B.B C.C D.D E. Toward the viewer F. Away from the viewer T. The field is zero.
What is the difference between an emission and a reflection nebula?
A. Generally, emission nebulas appear blue, and reflection nebulas look red. B. Emission nebulas contain many dying stars; reflection nebulas are stellar nurseries. C. Emission nebulas give off their own light; reflection nebulas reflect the light of nearby stars. D. All of these choices are correct.
The energy in the atmospheres of most of the jovian planets comes
A) almost entirely from the Sun. B) almost entirely from their interiors. C) both the Sun and their interiors, in roughly equal proportions. D) tidal heating.
When energy is converted from one form to another, a tiny amount is inevitably lost
Indicate whether the statement is true or false